Mixed With Clay Patents (Class 502/68)
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Publication number: 20080146436Abstract: This invention relates to a process for the preparation of a fluid catalytic cracking catalyst with improved attrition resistance. According to this preparation process, an aqueous slurry comprising a zeolite, day, and poly aluminum chloride is spray-dried and subsequently calcined, the poly aluminum chloride having the formula [Al2(OH)yCl6-y]x, wherein x is at least 1 and y is greater than 2 and smaller than 4.Type: ApplicationFiled: November 13, 2007Publication date: June 19, 2008Applicant: ALBEMARLE NETHERLANDS B.V.Inventors: MONIQUE VAN DER ZON, Jan Hendrik Hilgers
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Patent number: 7375048Abstract: A catalyst composition suitable for reacting hydrocarbons such as in fluidized catalytic cracking (FCC) comprises an attrition-resistant particulate having at least 30% of an intermediate pore zeolite, kaolin, a phosphorous compound, and a high density unreactive component. An example of an unreactive component is alpha-alumina. The catalyst can also contain a reactive alumina of high surface area.Type: GrantFiled: March 29, 2005Date of Patent: May 20, 2008Assignee: BASF Catalysts LLCInventors: Gary M. Smith, Barry K. Speronello
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Patent number: 7304011Abstract: Compositions for reduction of NOx generated during a catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise a fluid catalytic cracking catalyst composition, preferably containing a Y-type zeolite, and a particulate NOx composition containing particles of a zeolite having a pore size ranging from about 3 to about 7.2 Angstoms and a SiO2 to Al2O3 molar ratio of less than about 500. Preferably, the NOx reduction composition contains NOx reduction zeolite particles bound with an inorganic binder. In the alternative, the NOx reduction zeolite particles are incorporated into the cracking catalyst as an integral component of the catalyst. Compositions in accordance with the invention are very effective for the reduction of NOx emissions released from the regenerator of a fluid catalytic cracking unit operating under FCC process conditions without a substantial change in conversion or yield of cracked products, e.g., gasoline and light olefins.Type: GrantFiled: April 15, 2004Date of Patent: December 4, 2007Assignee: W.R. Grace & Co. -Conn.Inventors: George Yaluris, Michael Scott Ziebarth, Xinjin Zhao
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Patent number: 7300899Abstract: A lithium exchanged zeolite X adsorbent blend with improved performance characteristics produced by preparing a zeolite X, preparing a binder which includes highly dispersed attapulgite fibers wherein the tapped bulk density of the highly dispersed attapulgite fibers measured according to DIN/ISO 787 is more than about 550 g/ml, mixing the zeolite X with the binder to form a mixture, forming the mixture into a shaped material, ion exchanging the zeolite X at least 75% with lithium ions, and calcining the shaped material.Type: GrantFiled: July 8, 2005Date of Patent: November 27, 2007Assignee: Zeochem, LLCInventors: Kerry Weston, Dave Jaussaud, Robert L. Chiang
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Patent number: 7273827Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a catalyst composition comprising a molecular sieve having a framework including at least [AlO4] and [PO4] tetrahedral units, at least one of a binder and a matrix material and at least one phosphorus compound separate from said molecular sieve wherein, after calcination at 760° C. for 3 hours, said catalyst composition has a microporous surface area in excess of 20% of the microporous surface area of said molecular sieve after calcination at 650° C. in nitrogen for 2 hours. The catalyst composition is particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: December 19, 2005Date of Patent: September 25, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc Roger Marc Martens, Jeffrey Wayne Sprinkle, Ian Nathaniel Walker
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Patent number: 7271123Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a molecular sieve catalyst composition of a molecular sieve, a binder and a matrix material, wherein the weight ratio of the binder to the molecular sieve is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: June 24, 2002Date of Patent: September 18, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-feng Chang, Stephen N. Vaughn, Luc R. M. Martens, Kenneth R. Clem
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Publication number: 20070203017Abstract: The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.Type: ApplicationFiled: August 17, 2006Publication date: August 30, 2007Inventors: Gopal Ravichandran, Biswanath Sarkar, Mohan P. Kuvettu, Deepa Megavathu, Sanjay K. Ray, Shiba P. Choudhury, Sudipta Roy, Venkatachalam Krishnan, Satish Makhija
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Patent number: 7235507Abstract: A diesel oxidation catalyst comprising a honeycomb substrate washcoated with a mixture of clay, a refractory oxide and a zeolite is disclosed. The washcoated substrate is subsequently deposited with a precious metal catalyst and a sulfur oxidation suppressant.Type: GrantFiled: August 14, 2004Date of Patent: June 26, 2007Assignee: Sud-Chemie Inc.Inventors: Li Xu, Yinyan Huang, Gregory Cullen, Zhongyuan Dang, Amiram Bar-Ilan
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Patent number: 7208442Abstract: The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene The catalyst composition comprises a molecular sieve and at least one metal oxide, such as a magnesium oxide that, when saturated with acetone and contacted with said acetone for 1 hour at 25° C., converts more than 80% of the acetone.Type: GrantFiled: February 10, 2003Date of Patent: April 24, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Teng Xu, Stephen N. Vaughn, Richard B. Hall, Doron Levin, James Clark Vartuli
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Patent number: 7160830Abstract: The present invention relates to a process for the preparation of catalyst particles with a particle diameter in the range 20–2000 microns involving the steps of agitating at least two dry catalyst ingredients, spraying a liquid binding agent on the catalyst ingredients while continuing the agitation, and isolating formed catalyst particles with the desired particle diameter and comprising the catalyst ingredients. In contrast to the conventional way of preparing such particles, spray-drying, the present process allows the formation of small particles from slurries with a high solids content. Hence, smaller amounts of liquid have to be evaporated, which makes the process energy efficient.Type: GrantFiled: December 10, 2003Date of Patent: January 9, 2007Assignee: Albemarle Netherlands, B.V.Inventors: Monique Van Der Zon, Erik Jeroen Laheij, Paul O'Connor
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Patent number: 7160831Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: June 24, 2002Date of Patent: January 9, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R. M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer
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Patent number: 7122494Abstract: A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of two or more elements from Groups 4–15 of the Periodic Table of the Elements and at least one of oxygen and sulfur, wherein the elements from Groups 4–15 and the at least one of oxygen and sulfur are chemically bound both within and between the groups and (3) at least one of at least one support, at least one filler and at least one binder. The process is such that the yield of hydrogen is less than the yield of hydrogen when contacting the hydrocarbons with the solid acid component alone.Type: GrantFiled: February 5, 2003Date of Patent: October 17, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: John D. Y. Ou, Neeraj Sangar
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Patent number: 7067449Abstract: A Y-zeolite-containing composite material made from materials comprising kaolin by in-situ crystallization, said composite material comprises nest-like structure. Content of Y-zeolite is in the range of 30–85% by weight of said composite material. The nest-like structure is essentially comprised of rodlike crystal, further comprises flaky crystal or blocky crystal. Y-zeolite in the composite material may be HY, REY, or REHY. Said composite material is suitable to be used as catalysts for catalytic cracking of heavy oil or resid. The invention further relates to a process for preparing the composite material.Type: GrantFiled: March 26, 2004Date of Patent: June 27, 2006Assignee: China Petroleum & Chemical CorporationInventors: Jihong Zhou, Enze Min, Haiying Yang, Baoning Zong
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Patent number: 7033487Abstract: A catalyst composition comprising about 5–55 wt % metal-doped anionic clay, about 10–50 wt % zeolite, about 5–40 wt % matrix alumina, about 0–10 wt % silica, about 0–10 wt % of other ingredients, and balance kaolin. In metal-doped anionic clays, the additive, i.e. the metal dopant, is distributed more homogeneously within the anionic clay than in impregnated anionic clays, without separate phases of additive being present. Hence, abrasion of this catalyst composition will result in microfines poorer in additive than the prior art composition. Furthermore, the catalyst composition according to the invention results in a higher reduction of sulfur in fuels such as gasoline and diesel than is the case in compositions comprising impregnated anionic clay.Type: GrantFiled: June 25, 2003Date of Patent: April 25, 2006Assignee: Albemarle Netherlands B.V.Inventors: Paul O'Connor, Gregory A. Pearson, Jerry J. Springs, Dennis Stamires
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Patent number: 6942783Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.Type: GrantFiled: May 19, 2003Date of Patent: September 13, 2005Assignee: Engelhard CorporationInventors: Mingting Xu, David Matheson Stockwell
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Patent number: 6942784Abstract: Zeolite microsphere FCC catalysts having a novel morphology comprising a porous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. The catalysts are formed from microspheres containing a metakaolin and an alumina source other than kaolin having a high pore volume.Type: GrantFiled: February 3, 2004Date of Patent: September 13, 2005Assignee: Engelhard CorporationInventors: David M. Stockwell, Stephen H. Brown, Ji-Yong Ryu
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Patent number: 6943132Abstract: Zeolite microsphere FCC catalysts having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. The catalysts are formed from microspheres containing a metakaolin and kaolin calcined through its exotherm, the latter calcined kaolin being derived from a kaolin having a high pore volume. Kaolin having a high pore volume can be a pulverized ultrafine kaolin or a kaolin which has been pulverized to have an incipient slurry point less than 57% solids.Type: GrantFiled: May 27, 2003Date of Patent: September 13, 2005Assignee: Engelhard CorporationInventors: David M. Stockwell, Randall P. Brown, Stephen H. Brown
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Patent number: 6908544Abstract: The present invention relates to a cracking catalyst comprising layered clays and a process for cracking hydrocarbon oils using said catalyst. Said catalyst is prepared by the process comprising the following steps: mixing and slurrying an expandable clay, a modifier component, pseudo-boehmite and water for 0.1-10 h to obtain a slurry, aging the slurry at 50-85° C. for 0.1-10 h, then drying and forming the slurry to obtain a formed material, water washing and aging the solid, and finally drying and calcining the solid, and said modifier being one or more selected from the group consisting of hydroxyl polymers of silicon, aluminum, zirconium or titanium, and substances comprising one or more of said hydroxyl polymers.Type: GrantFiled: December 24, 2002Date of Patent: June 21, 2005Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing,Inventors: Zhiqing Yu, Zhijian Da, Zhenyu Chen, Enze Min, Jun Long, Caiying Li, Zhiqing Huang
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Patent number: 6887457Abstract: A process for the preparation of a composition comprising a pentasil-type zeolite, which process comprises the following steps: a) hydrothermally treating an aqueous slurry comprising an aluminium source, a silicon source, a seeding material, and optionally a divalent metal source, thereby forming a pentasil-type zeolite and at least one other compound, and b) shaping the product of step a). Examples of the at least one other compound are anionic clay, cationic clay, Si—Al cogel, and (pseudo)boehmite.Type: GrantFiled: August 25, 2003Date of Patent: May 3, 2005Assignee: Akzo Nobel N.V.Inventors: Paul O'Connor, Dennis Stamires
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Patent number: 6872680Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a making a molecular sieve catalyst composition by forming a slurry by combining a molecular sieve, a binder and a matrix material, wherein the slurry has a pH, above or below the isoelectric point of the molecular sieve. The catalyst composition has improved attrition resistance, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: June 24, 2002Date of Patent: March 29, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-feng Chang, Stephen N. Vaughn, Luc R. M. Martens, Joseph E. Baumgartner, Stuart L. Soled, Kenneth R. Clem
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Process for preparing sodium silicate alkali solution depleted of sodium salt and enriched in silica
Patent number: 6864202Abstract: The present invention relates to an improved process for obtaining sodium silicate alkali solution depleted of sodium salt and enriched in silica from a mother liquor recovered after isolation of molecular sieves and more particularly, the present invention relates to a process for recycling mother liquor obtained after the isolation of molecular sieves for the preparation of fresh molecular sieves or as a binder for producing Fluid Catalytic Cracking (FCC) catalyst.Type: GrantFiled: October 29, 2002Date of Patent: March 8, 2005Assignee: Indian Oil Corporation LimitedInventors: Biswanath Sarkar, Ram Mohan Thakur, Nagesh Samant, Mohan Kuvettu Prabhu, Ravichandran Gopal, Mitra Bhanu Patel, Sanjay Kumar Ray, Krishnan Venkatachalam, Satish Makhija, Sobhan Ghosh -
Patent number: 6858555Abstract: A catalyst composition for the cracking of heavy oil, which has high cracking activity for heavy components in the heavy oil and features reduced deposition of coke. The catalyst composition is comprised of a zeolite, a mixed metal oxide, clay and a metal oxide, and the total acidity of a portion of said catalyst, said portion being composed of said catalyst components other than said zeolite, is from 0.02 to 0.08 mmol/g.Type: GrantFiled: October 15, 2002Date of Patent: February 22, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: Masato Shibasaki, Nobuo Ootake
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Patent number: 6858556Abstract: A process for the preparation of a stabilized dual zeolite catalyst-comprising two types of zeolites, a low silica molecular sieve and a stabilized high silica zeolite is disclosed. The catalyst is useful for cracking heavier hydrocarbons into lighter useful products.Type: GrantFiled: February 25, 2002Date of Patent: February 22, 2005Assignee: Indian Oil Corporation LimitedInventors: Mohan Prabhu Kuvettu, Sanjay Kumar Ray, Gopal Ravichandran, Venkatchalam Krishnan, Satyen Kumar Das, Satish Makhija, Sobhan Ghosh
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Publication number: 20040266608Abstract: A molecular sieve-containing catalyst for cracking hydrocarbons, comprising molecular sieve, refractory inorganic oxide, clay and a metal component, wherein the amount of said molecular sieve is from 1 to 90% by weight, the refractory inorganic oxide is from 2 to 80% by weight, the clay is from 2 to 80% by weight, and the metal component is from 0.1 to 30% by weight, calculated as the oxide of said metal having its maximum valence state, based on the total amount of the catalyst, wherein said metal component exists essentially in a reduction state and is one or more metals selected from the group consisting of metals of Group III A(other than aluminum), and metals of Group IVA, VA, IB, IIB, VB, VIB and VIIB, and non-noble metals of Group VIII of the periodic table. The catalyst has higher cracking activity and higher sulfur reduction activity.Type: ApplicationFiled: May 28, 2004Publication date: December 30, 2004Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Jun Long, Yuxia Zhu, Huiping Tian, Yujian Liu, Zhenyu Chen, Yaoqing Guo, Zhijian Da, Jiushun Zhang, Mingyuan He
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Publication number: 20040235642Abstract: A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.Type: ApplicationFiled: May 19, 2003Publication date: November 25, 2004Inventors: Mingting Xu, David Matheson Stockwell
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Patent number: 6787501Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: June 24, 2002Date of Patent: September 7, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R. M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer
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Patent number: 6776899Abstract: The present invention relates to a cracking catalyst composition comprising a physical mixture of 10-90 weight % of a cracking catalyst A and 90-10 weight % of a cracking catalyst B, whereby catalyst A is a zeolite-containing cracking catalyst, and catalyst B is a catalyst having a higher average pore volume in the pore diameter range of 20-200 Å than catalyst A in the same pore diameter range and not containing M41S material. These compositions can suitably used for the fluid catalytic cracking of hydrocarbon feeds with high metal concentrations.Type: GrantFiled: February 20, 2002Date of Patent: August 17, 2004Assignees: Akzo Nobel N.V., Petroleo Brasileiro S.A.Inventors: Yiu Lau Lam, Anselmo Da Silva Santos, Rodolfo Eugenio Roncolatto, Marcelo Andre Torem, Edisson Morgado, Jr., Paul O'Connor
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Patent number: 6743745Abstract: A process for the production of a molecular sieve adsorbent blend product with improved performance characteristics produced by preparing a zeolite powder, preparing a highly dispersed attapulgite fiber binder, mixing the zeolite powder with the highly dispersed attapulgite binder to form a mixture, forming molecular sieve adsorbent products into a shaped material and calcining the shaped material, wherein the tapped bulk density of the highly dispersed attapulgite fibers measured according to DIN/ISO 787 is more than about 550 g/ml.Type: GrantFiled: January 22, 2002Date of Patent: June 1, 2004Assignee: ZeochemInventors: Dave Jaussaud, Kerry Weston, Armin Pfenninger, Beat Kleeb
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Patent number: 6716338Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally spinel, or mullite, or both spinel and mullite made via kaolin which has been calcined through its characteristic exotherm. Calcination of the hydrous clay to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: GrantFiled: July 8, 2002Date of Patent: April 6, 2004Assignee: Engelhard CorporationInventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell
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Patent number: 6716337Abstract: The invention pertains to a carrier composition comprising (a) at least 30 wt % of a synthetic cracking component, based on the total weight of the carrier composition, which comprises oxidic compounds of one or more trivalent metallic elements, tetravalent metallic elements, and divalent metallic elements, said cracking component comprising elemental clay platelets with an average diameter of 1 &mgr;m or less and an average degree of stacking of 20 platelets per stack or less, and/or comprising a cogel with a saponite content CA of less than 60%, in which the total of sodium and potassium amounts to less than 1 wt %, based on the total weight of the cogel, and (b) 1-25 wt % of a zeolite Y, based on the total weight of the carrier composition, with a unit cell size below 24.35 Å. The invention further pertains to a catalyst comprising said carrier composition and at least a hydrogenation metal, and a process for converting heavy feedstock into middle distillates using said catalyst.Type: GrantFiled: January 31, 2001Date of Patent: April 6, 2004Assignee: Akzo Nobel NVInventors: Jan Nieman, Johannes Wilhelmus Maria Sonnemans, Bas De Kroes
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Patent number: 6710008Abstract: Disclosed is a method for making molecular sieve catalyst particles. Dried molecular sieve catalyst particles are used to make the catalyst. The dried molecular sieve catalyst particles are put into an aqueous solution and stirred to make a slurry. The slurry is dried to make the molecular sieve catalyst particles. Optionally, the dried molecular sieve catalyst particles made from the slurry are calcined.Type: GrantFiled: January 17, 2002Date of Patent: March 23, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-Feng Chang, Stephen N. Vaughn, Jeffery W. Sprinkle, Fran A. Shipley, Kenneth R. Clem
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Process for preparing sodium silicate alkali solution depleted of sodium salt and enriched in silica
Publication number: 20040053773Abstract: The present invention relates to an improved process for obtaining sodium silicate alkali solution depleted of sodium salt and enriched in silica from a mother liquor recovered after isolation of molecular sieves and more particularly, the present invention relates to a process for recycling mother liquor obtained after the isolation of molecular sieves for the preparation of fresh molecular sieves or as a binder for producing Fluid Catalytic Cracking (FCC) catalyst.Type: ApplicationFiled: October 29, 2002Publication date: March 18, 2004Inventors: Biswanath Sarkar, Ram Mohan Thakur, Nagesh Samant, Mohan Kuvettu Prabhu, Ravichandran Gopal, Mitra Bhanu Patel, Sanjay Kumar Ray, Krishnan Venkatachalam, Satish Makhija, Sobhan Ghosh -
Patent number: 6696378Abstract: An in situ process for making improved zeolitic fluid cracking catalysts by spray drying a mixture of (i) hydrous kaolin and/or metakaolin, and (ii) calcined aluminum source, said calcined aluminum source being derived from a pulverized, ultrafine kaolin, calcining the resulting microspheres to convert hydrous kaolin to metakaolin, and reacting microspheres composed of a mixture of metakaolin and calcined aluminum source with an alkaline sodium silicate solution. The weight percent of metakaolin in the calcined microspheres is greater than the calcined aluminum source content.Type: GrantFiled: August 31, 2001Date of Patent: February 24, 2004Assignee: Engelhard CorporationInventors: Clark W. Gibson, Mitchell J. Willis, George E. Gantt, Robert E. Barnes, David M. Stockwell
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Publication number: 20040029717Abstract: A catalyst composition comprising about 5-55 wt % metal-doped anionic clay, about 10-50 wt % zeolite, about 5-40 wt % matrix alumina, about 0-10 wt % silica, about 0-10 wt % of other ingredients, and balance kaolin. In metal-doped anionic clays, the additive, i.e. the metal dopant, is distributed more homogeneously within the anionic clay than in impregnated anionic clays, without separate phases of additive being present. Hence, abrasion of this catalyst composition will result in microfines poorer in additive than the prior art composition. Furthermore, the catalyst composition according to the invention results in a higher reduction of sulfur in fuels such as gasoline and diesel than is the case in compositions comprising impregnated anionic clay.Type: ApplicationFiled: June 25, 2003Publication date: February 12, 2004Inventors: Paul O'Connor, Gregory A. Pearson, Jerry J. Springs, Dennis Stamires
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Patent number: 6673235Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined through its characteristic exotherm and which produces a catalyst having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. Calcination of the hydrous kaolin to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: GrantFiled: June 6, 2002Date of Patent: January 6, 2004Assignee: Engelhard CorporationInventors: David H. Harris, Mingting Xu, David Stockwell, Rostam J. Madon
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Patent number: 6656347Abstract: Zeolite microsphere FCC catalysts having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. The catalysts are formed from microspheres containing a metakaolin and kaolin calcined through its exotherm, the latter calcined kaolin being derived from a kaolin having a high pore volume. Kaolin having a high pore volume can be a pulverized ultrafine kaolin or a kaolin which has been pulverized to have an incipient slurry point less than 57% solids.Type: GrantFiled: September 20, 2001Date of Patent: December 2, 2003Assignee: Engelhard CorporationInventors: David M. Stockwell, Randall P. Brown, Stephen H. Brown
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Patent number: 6652626Abstract: A description is given of agglomerates of faujasite X with an Si/Al ratio of 1, the inert binder of which, on the one hand, has been converted to active zeolite by conversion to zeolite in an alkaline liquor, and which have been subjected, on the other hand, to an exhaustive lithium exchange. These adsorbents develop a nitrogen adsorption capacity (1 bar/25° C.) of at least 26 cm3/g, which makes them excellent adsorbents for the non-cryogenic separation of gases from air and for the purification of hydrogen.Type: GrantFiled: July 17, 1998Date of Patent: November 25, 2003Assignee: CECA, S.A.Inventor: Dominique Plee
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Publication number: 20030199386Abstract: Zeolite microsphere FCC catalysts having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. The catalysts are formed from microspheres containing a metakaolin and kaolin calcined through its exotherm, the latter calcined kaolin being derived from a kaolin having a high pore volume. Kaolin having a high pore volume can be a pulverized ultrafine kaolin or a kaolin which has been pulverized to have an incipient slurry point less than 57% solids.Type: ApplicationFiled: May 27, 2003Publication date: October 23, 2003Inventors: David M. Stockwell, Randall P. Brown, Stephen H. Brown
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Publication number: 20030171205Abstract: A process for the production of a molecular sieve adsorbent blend product with improved performance characteristics produced by preparing a zeolite powder, preparing a highly dispersed attapulgite fiber binder, mixing the zeolite powder with the highly dispersed attapulgite binder to form a mixture, forming molecular sieve adsorbent products into a shaped material and calcining the shaped material, wherein the tapped bulk density of the highly dispersed attapulgite fibers measured according to DIN/ISO 787 is more than about 550 g/ml.Type: ApplicationFiled: January 22, 2002Publication date: September 11, 2003Applicant: ZEOCHEM LLCInventors: Dave Jaussaud, Kerry Weston, Armin Pfenninger, Beat Kleeb
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Publication number: 20030166453Abstract: The present invention relates to a stabilized dual zeolite catalyst for cracking heavier hydrocarbons into lighter useful products said catalyst comprising two types of zeolites viz., low silica molecular sieve and stabilized high silica zeolite, silica-alumina based binder and kaolin clay and a process for the preparation of the stabilized dual zeolite catalyst.Type: ApplicationFiled: February 25, 2002Publication date: September 4, 2003Inventors: Mohan Prabhu Kuvettu, Sanjay Kumar Ray, Gopal Ravichandran, Venkatchalam Krishnan, Satyen Kumar Das, Satish Makhija, Sobhan Ghosh
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Patent number: 6613710Abstract: A process for preparing bi-functional catalyst for Fluid Catalytic Cracking (FCC), that comprises molecular sieves, modified clay and semi-basic alumina and the catalyst for highly effective cracking of high boiling petroleum feedstock to provide simultaneously, enhanced yields of Liquefied Petroleum Gas (LPG) and reduction of undesirable bottoms.Type: GrantFiled: September 25, 2001Date of Patent: September 2, 2003Assignee: Indian Oil Corporation LimitedInventors: Sanjay Kumar Ray, Mohan Prabhu Kuvettu, Venkatchalam Krishnan, Gopal Ravichandran, Kamlesh Gupta, Sukumar Mandal, Satish Makhija, Sobhan Ghosh, Arumugam Velayutham Karthikeyani, Mitra Bhanu Patel
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Patent number: 6610625Abstract: Catalytic and/or adsorbent compositions are formed with greater flexibility to optimize various properties, such as strength and catalytic activity by employing a synthetic clay binder having a small particle size, e.g., an average particle size no greater than about 100 nm. Embodiments of the present invention comprise compositions containing a catalytic component and/or adsorbent component and laponite which functions as a binder either alone or with an additional binder component. Embodiments of the present invention further include a catalytic and/or adsorbent composition containing an inorganic binder and laponite as a lubricant to facilitate shaping, as by extrusion.Type: GrantFiled: June 5, 2001Date of Patent: August 26, 2003Assignee: Tricat Industries, Inc.Inventor: John McCauley
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Publication number: 20030136707Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined through its characteristic exotherm and which produces a catalyst having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. Calcination of the hydrous kaolin to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: ApplicationFiled: June 6, 2002Publication date: July 24, 2003Applicant: ENGELHARD CORPORATIONInventors: David H. Harris, Mingting Xu, David Stockwell, Rostam J. Madon
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Patent number: 6566293Abstract: The present invention is directed to a catalyst composition for FCC which has high efficiency in the production of light olefins while maintaining the bottoms conversion. The catalyst composition is prepared by: a) ex situ activating an olefin-selective zeolite with at least 10 wt % of a phosphorus-containing compound, calculated as P2O5 based on the total amount of olefin-selective zeolite. b) combining the activated olefin-selective zeolite with 10-40 wt % catalytic cracking component, binder, and 0-25 wt % silica in a slurry, so that the total amount of amorphous alumina present in the final catalyst composition is at least 10 wt %, and c) spray-drying the slurry to form catalyst particles.Type: GrantFiled: November 17, 2000Date of Patent: May 20, 2003Assignee: Akzo Nobel N.V.Inventors: Eelco Titus Carel Vogt, Augusto R. Quinones, Paul O'Connor
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Publication number: 20030089640Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally kaolin which has been calcined through its characteristic exotherm. Calcination of the hydrous clay to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina which contains a gamma alumina phase. The transitional alumina may contain a delta alumina phase as well. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.Type: ApplicationFiled: October 17, 2001Publication date: May 15, 2003Inventors: Rostam Madon, David H. Harris, Mingting Xu, David Stockwell, Bruce Lerner, Glenn W. Dodwell
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Patent number: 6558647Abstract: The invention relates to an acidic silicoaluminate solid that has a microporous zeolitic phase that is characterized by at least one infrared band between 400-1600 cm−1, an organized mesoporosity that is characterized by the presence of at least one X-diffraction line between 20-100 Å, a silica/alumina molar ratio of between 5-250 and an acidity that is measured by infrared analysis via an area of the band at about 1545 cm−1 at least equal to 50 g of dry solid. The invention also relates to a process for the preparation of the solid, a substrate that consists of solid and at least one matrix, and a catalyst that comprises said solid. The catalyst can be used for the conversion of hydrocarbons and in particular hydrocracking.Type: GrantFiled: December 14, 2000Date of Patent: May 6, 2003Assignee: Institut Francais du PetroleInventors: Sylvie Lacombe, David Marseault, Philippe Caullet, Henri Kessler, Eric Benazzi, Alexandre Jouve
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Patent number: 6528447Abstract: A process for preparing a hydrocarbon conversion catalyst for use in a Fluid Catalyst Cracking (FCC) unit includes the steps of preparing a modified alumina-silica composite by reacting alumina with an acid to obtain an acidified alumina, aging the acidified alumina for from 0.25 to 60 hours, adding a silica source to the acidified alumina to obtain the composite; preparing a dispersed precursor slurry of the modified alumina-silica composite, and a rare earth exchanged USY zeolite (REUSY) containing at least one rare earth oxide present in an amount ranging from 3.8 to 4.0 wt %, and optionally kaolin clay; spray-drying the slurry to obtain spherical particles; and subjecting the spherical particles to calcination.Type: GrantFiled: March 19, 1999Date of Patent: March 4, 2003Assignee: Indian Oil Corporation LimitedInventors: Sobhan Ghosh, Satish Makhija, Venkatachalam Krishnan, Sanjay Kumar Ray, Mohan Prabhu Kuvettu
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Patent number: 6511933Abstract: A catalyst composition for the cracking of heavy oil, which has high cracking activity for heavy components in the heavy oil and features reduced deposition of coke. The catalyst composition is comprised of a zeolite, a mixed metal oxide, clay and a metal oxide, and the total acidity of a portion of the catalyst; the portion being composed of the catalyst components other than the zeolite, is from 0.02 to 0.08 mmol/g.Type: GrantFiled: June 12, 1998Date of Patent: January 28, 2003Assignee: Tonen CorporationInventors: Masato Shibasaki, Nobuo Ootake
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Patent number: 6410815Abstract: The present invention relates to agglomerated zeolite adsorbents based on faujasite with an Si/Al ratio such that 1≦Si/Al≦1.15, at least 70% exchanged with barium and optionally with potassium, and on a binder, preferably a zeolitizable binder. They are obtained by agglomerating zeolite powder with a binder, followed by exchange of the zeolite ions for barium ions and activation of the adsorbents thus exchanged. These adsorbents are particularly suitable for the adsorption of the para-xylene contained in aromatic C8 hydrocarbon fractions in the liquid phase, in processes of simulated fluid-bed type.Type: GrantFiled: May 10, 2000Date of Patent: June 25, 2002Assignee: Elf Atochem S.A.Inventors: Dominique Plee, Alain Methivier
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Patent number: 6355591Abstract: A fluid catalytic cracking additive composition to obtain enhanced yield of Liquified Petroleum Gas in catalytic cracking of high boiling petroleum feed stocks comprising 4 to 20 wt. % aluminum phosphate composite, 1-40 wt. % crystalline molecular sieve Zeolites from the group selected from mordenite ZSM-5, Beta and mixtures thereof and 40-90 wt. % clay.Type: GrantFiled: January 3, 2000Date of Patent: March 12, 2002Assignee: Indian Oil Corporation LimitedInventors: Mohan Prabhu Kuvettu, Gopal Ravi Chandran, Sanjay Kumar Ray, Kamlesh Gupta, Ganga Shankar Misra, Venkatachalam Krishnan, Mitra Bhanu Patel, Satish Makhija, Sobhan Ghosh