Soaking Patents (Class 208/131)
  • Patent number: 10591456
    Abstract: Methods and systems for in situ monitoring of coke morphology in a delayed coking unit. At least one transmitting electrode and at least one receiving electrode are utilized to transmit AC current across coke being formed within the delayed coking unit. An impedance analyzer can be used to measure the impedance encountered between the transmitting electrode and the receiving electrode. This measure impedance is compared to an impedance curve comprising known impedance values for different coke morphologies to determine the morphology of coke being formed in the delayed coking unit.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: March 17, 2020
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventor: Limin Song
  • Patent number: 10584290
    Abstract: The present invention relates to resid processing, particularly related to conversion of resid material with maximum recovery of lighter hydrocarbons. The invented process utilizes a novel scheme for integration of solvent de-asphalting and delayed coking processes to maximize the residue conversion to valuable products, with cleaner quality of middle distillates and fuel oil products, in comparison with other integrated solvent de-asphalting and delayed coking schemes. This process also has an additional flexibility to vary the recycle quantity, without impacting fractionator operation of the delayed coking section, which further enhances the product recovery and achieves maximum conversion of the resid feedstock, with minimum impact on liquid product properties.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: March 10, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Ponoly Ramachandran Pradeep, Satyen Kumar Das, Terapalli Hari Venkata Devi Prasad, Arjun Kumar Kottakuna, Debasis Bhattacharyya, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10550342
    Abstract: An integrated process for increasing olefin production is described through which heavy cracker residues of fluid catalytic cracking unit and steam cracking unit are completely mixed, and mixed stream is properly recycled and further combined with atmospheric tower bottoms. Combined stream is deasphalted and hydrotreated to produce a proper feedstock for steam cracking unit for manufacturing light olefin compounds. The integrated process produces higher amount of light olefins than a substantially similar process without processing the heavy cracker residues.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 4, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jose Armando Salazar-Guillen, Michael Huckman, Scott Stevenson
  • Patent number: 10494577
    Abstract: Systems and methods are provided for upgrading aromatic refinery fractions by performing trim alkali metal desulfurization. The alkali metal desulfurization can be performed by mixing the aromatic refinery fraction with alkali metal in finely dispersed solid and/or molten form, such as molten sodium. The aromatic nature of the refinery fraction can potentially be beneficial for the desulfurization reaction mechanism. The aromatic refinery fractions can correspond to fractions that have been previously processed to remove metals. Because only trim desulfurization is being performed, the desulfurization can be performed under relatively mild alkali metal desulfurization conditions that result in a reduced or minimized amount of feed conversion.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 3, 2019
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Patrick L. Hanks
  • Patent number: 10487270
    Abstract: Disclosed is an improved system and method for carrying out the petroleum coking process. The improvements provide for recovery of gaseous hydrocarbons from operational units and use of the recovered gaseous hydrocarbons in place of steam during the coking process and during the stripping of volatile compounds from the coke drums.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 26, 2019
    Assignee: The University of Tulsa
    Inventors: Dwijen K. Banerjee, Michael Volk, Keith Wisecarver, Glixon Mavarez Nava
  • Patent number: 10443003
    Abstract: Systems and methods for the external processing flash zone gas oil by recycling it through a vacuum residuum hydroprocessing unit before reentering the delayed coking process.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 15, 2019
    Assignee: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventor: Robert F Earhart, Jr.
  • Patent number: 10392566
    Abstract: Hydropyrolysis processes are described, in which differing types of feedstocks, including at least one biorenewable feedstock, namely a biomass-containing feedstock, may be co-processed to allow enhancements in operating conditions and/or product properties, depending on changing customer requirements and/or overall market demands. According to specific embodiments, an aliphatic hydrocarbon precursor or an aromatic hydrocarbon precursor is co-processed with the biomass-containing feedstock to enhance an operating condition (e.g., a reactor temperature profile) of the hydropyrolysis process and/or a property (e.g., cetane number) of a liquid product (e.g., a diesel boiling range fraction) obtained from a substantially fully deoxygenated hydrocarbon liquid.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 27, 2019
    Assignee: Gas Technology Institute
    Inventors: Martin B. Linck, Terry L. Marker, Michael J. Roberts, Larry G. Felix
  • Patent number: 10351778
    Abstract: Methods and systems for producing anode grade coke are disclosed, which allow anode grade coke to be produced from crude oil having a high sulfur content. A fraction of the resid is hydrotreated while another fraction of the resid is treated in a solvent deasphalting unit. A synthetic stream is provided by blending hydrotreated resid with one or more streams from the deasphalting unit. The synthetic stream is fed to an anodic coker unit.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: July 16, 2019
    Assignee: Kellogg Brown & Root LLC
    Inventor: Rashid Iqbal
  • Patent number: 10316253
    Abstract: Co-production a product anode grade coke and a product fuel grade coke is done using a system configured to implement a method that includes: directing an anode grade coker charge material from a tower to a first coke drum set; generating the product anode grade coke using the first coke drum set while directing a first vapor stream from the first coker drum set to the tower; directing a fuel grade coker charge material from a fractionator to a second coke drum set; generating the product fuel grade coke using the second coke drum set while directing a second vapor stream from the second coke drum set to the fractionator; and directing a third vapor stream from the tower to the fractionator while generating the product anode grade coke using the first coke drum set and generating the product fuel grade coke using the second coke drum set.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 11, 2019
    Assignees: KELLOG BROWN & ROOT LLC, YANBU ARAMCO SINOPEC REFINING CO., LTD.
    Inventors: Bharat Bansal, Suresh Pandian, Joseph Merle Ditz, Parijat Mishra
  • Patent number: 10253264
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Grant
    Filed: October 1, 2017
    Date of Patent: April 9, 2019
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Patent number: 9994780
    Abstract: An integrated process is provided for producing deasphalted oil, high quality petroleum green coke and liquid coker products. An enhanced solvent deasphalting process is used to treat the feedstock to reduce the level of asphaltenes, N, S and metal contaminants and produce a deasphalted oil with reduced contaminants. A coking process is integrated to produce liquid and gas coking unit products, and petroleum green coke.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 12, 2018
    Assignee: Saudi Arabian Oil Company
    Inventor: Omer Refa Koseoglu
  • Patent number: 9920263
    Abstract: Systems and methods for refining conventional crude and heavy, corrosive, contaminant-laden carbonaceous crude (Opportunity Crude) in partially or totally separated streams or trains.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: March 20, 2018
    Assignee: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventors: Benjamin Klein, Odette Eng
  • Patent number: 9850435
    Abstract: A catalytic naphtha hydrodesulfurization process is operated in a process unit having a surge drum with equipped for gas blanketing with a blanketing gas containing controlled levels of CO and CO2. If the gas selected for blanketing normally contains more than the acceptable level of these inhibitors, they should be reduced to the levels appropriate for retention of catalyst functionality.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: December 26, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stuart H. Shih, William J. Novak
  • Patent number: 9840671
    Abstract: The present invention provides a delayed coking process comprising a step of subjecting a mixed feed comprises residual heavy hydrocarbon feedstock and bio oil obtained from fast pyrolysis of lignocellulosic biomass of one or more of Jatropha, Cashew nut, Karanjia and Neem to a delayed coking process and a system for the delayed coking process.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: December 12, 2017
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Ram Mohan Thakur, Ajay Kumar Arora, Terapalli Hari Venkata Devi Prasad, Pradeep Ponoly Ramachandran, Jagdev Kumar Dixit, Rajesh, Debasis Bhattacharyya, Suresh Kumar Puri, Brijesh Kumar, Santanam Rajagopal, Ravinder Kumar Malhotra
  • Patent number: 9796852
    Abstract: A bitumen having the properties of a Newtonian liquid is a mixture of a first oil pitch made of particles of soot and saturated oils and a second oil pitch made of aromatic oils and resins, characterized in that the first oil pitch has saturated oils at a content of at least 10% in wet weight and the second oil pitch has aromatic oils at a content of at least 10% in wet weight.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: October 24, 2017
    Assignee: S.A. Imperbel N.V.
    Inventors: Caroline Martin, Placido Caruso, Hans Aerts
  • Patent number: 9777221
    Abstract: A method of producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material having a relatively high initial boiling point.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: October 3, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Douglas J. Miller, Irwin C. Lewis, Ching-Feng Chang, Richard Thomas Lewis
  • Patent number: 9534176
    Abstract: A method of depolymerizing coal includes preparing a high temperature depolymerizing medium consisting of heavy hydrocarbon oils and mixing it with coal to form a mixture, performing an optional first distillation at a temperature below 250° C. to recover naphthalene, heating the mixture to a temperature between 350° C. and 450° C. to create a digested coal, centrifuging the digested coal to remove ash and obtain a centrate, and distillation of the centrate into separate fractions. The high temperature depolymerizing medium may be a heavy hydrocarbon with a hydrogen to carbon (H/C) ratio higher than 7.0% and may include liquids chosen from the group consisting of: coal tar distillate, decant oil, anthracene oil, and heavy aromatic oils. The high temperature depolymerizing medium may be blended with an oil, preferably with H/C ratio higher than 10.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: January 3, 2017
    Assignee: QUANTEX RESEARCH CORPORATION
    Inventors: Elliot B. Kennel, Gilbert A. Chalifoux
  • Patent number: 9228135
    Abstract: An efficient delayed coking process improvement for producing heavy coker gas oil of sufficient quality to be used as hydrocracker feedstock.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: January 5, 2016
    Assignee: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventors: John D Ward, Linda M Strassle, Kevin Sitton
  • Publication number: 20150090637
    Abstract: The present invention provides a method for processing low-grade heavy oil, comprising: providing a riser-bed reactor; preheating the low-grade heavy oil and injecting it into the riser reactor to react with solid catalyst particles at the temperature of 550-610° C.; oil-gas, after reacting with the solid catalyst particles in the riser reactor, being introduced into the fluidized bed reactor to continue to react at temperature of 440-520° C. and weight hourly space velocity of 0.5-5 h?1; and the oil-gas, after reacting in the fluidized bed reactor, being separated from coked solid catalyst particles carried therein, and the separated oil-gas being introduced into a fractionation system. The method can effectively remove carbon residues, heavy metals, asphaltenes and other impurities from the low-grade heavy oil, and obtain high liquid product yield in a simple process.
    Type: Application
    Filed: June 4, 2014
    Publication date: April 2, 2015
    Inventors: GANG WANG, JINSEN GAO, CHUNMING XU, BAOJIAN SHEN, HONGLIANG WANG
  • Patent number: 8968553
    Abstract: Undesirable components of traditional coking processes are selectively cracked or coked in the coking vessel by injecting an additive into the vapors in the coking vessel. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack (or coke) these undesirable components that typically have a high propensity to coke, and are often precursors to coke in the coking process. These undesirable components can also be very problematic in downstream catalytic cracking processes, significantly contributing to coke on catalyst and catalyst deactivation. Exemplary embodiments of the present invention also provide methods to (1) decrease coke production, (2) increase liquid transportation fuels, (3) control the coke crystalline structure, and (4) control the quantity and quality of volatile combustible materials (VCMs) in the resulting coke.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: March 3, 2015
    Inventor: Roger G. Etter
  • Patent number: 8932458
    Abstract: The delayed coking process comprises the steps of: thermally cracking hydrocarbon feedstock in the coke drum thereby converting the feedstock to coke and hydrocarbon products; routing thermally crack hydrocarbon products to downstream fractionators; and periodically removing coke out of the drum. Before coke removal, the drum has to be steam stripped, water quench, then vented. During venting, H2S scavenger is injected to the drum vapor space to remove residual H2S.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: January 13, 2015
    Assignee: Marathon Petroleum Company LP
    Inventors: Gary M. Gianzon, David T. Roland
  • Publication number: 20140332445
    Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary D. Mohr
  • Patent number: 8840778
    Abstract: A method for thermally cracking a carboxylic acid containing hydrocarbonaceous feed wherein the feed is first processed in a vaporization step that contains at least one catalyst effective to convert carboxylic acid species to carbon dioxide and hydrocarbon and/or lower molecular weight acids and hydrocarbon.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: September 23, 2014
    Assignee: Lyondell Chemical Technology, L.P.
    Inventor: Kenneth M. Webber
  • Patent number: 8697025
    Abstract: In the raw coke composition of the invention, as the starting material for a negative electrode material of a lithium ion secondary battery, the ratio of the crystallite size Lc(002) and lattice constant co(002) (Lc(002)/co(002)) on the 002 plane is no greater than 180, and the ratio of the crystallite size La(110) and the lattice constant ao(110) (La(110)/ao(110)) on the 110 plane is no greater than 1500, as determined by X-ray diffraction upon graphitizing in an inert gas atmosphere at a temperature of 2800° C.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 15, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Tamotsu Tano, Takashi Oyama, Hiromitsu Hashisaka, Akio Sakamoto
  • Patent number: 8673131
    Abstract: The present invention relates to a method of preparing synthetic crude oil from a heavy crude reservoir, comprising: (a) extracting the heavy crude oil using a steam technology; (b) separating the crude extracted and the water; (c) separating the crude into at least one light cut and one heavy cut; (d) converting said heavy cut to a lighter product and a residue; (e) optionally, partially or totally hydroprocessing the converted product and/or the light cut(s) obtained upon separation (c); (f) burning and/or gasifying the conversion residue in the presence of metal oxides in at least one chemical looping cycle producing CO2-concentrated fumes in order to allow CO2 capture, the optionally hydroprocessed converted product and light separation cut(s) making up the synthetic crude oil, said combustion allowing to generate steam and/or electricity, and said gasification allowing to generate hydrogen, the steam and/or the electricity thus generated being used for extraction (a), and/or the electricity and/or the hy
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: March 18, 2014
    Assignees: IFP Energies Nouvelles, Total SA
    Inventors: Thierry Gauthier, Ali Hoteit, Ann Forret
  • Publication number: 20140061097
    Abstract: Undesirable components of traditional coking processes are selectively cracked or coked in the coking vessel by injecting an additive into the vapors in the coking vessel. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack (or coke) these undesirable components that typically have a high propensity to coke, and are often precursors to coke in the coking process. These undesirable components can also be very problematic in downstream catalytic cracking processes, significantly contributing to coke on catalyst and catalyst deactivation. Exemplary embodiments of the present invention also provide methods to (1) decrease coke production, (2) increase liquid transportation fuels, (3) control the coke crystalline structure, and (4) control the quantity and quality of volatile combustible materials (VCMs) in the resulting coke.
    Type: Application
    Filed: November 7, 2013
    Publication date: March 6, 2014
    Inventor: Roger G. ETTER
  • Patent number: 8658025
    Abstract: Biomass is used as a co-feed for a heavy petroleum oil coking process to improve the operation of the coking process and to utilize biomaterial for the production of transportation fuels. The coking process may be a delayed coking process or a fluidized bed coking process and in each case, the presence of the biomass will decrease the coke drying time so reducing coke handling problems in the unit besides forming a superior coke product. In the case of a fluidized bed coking process using a gasifier for the coke, the addition of an alkali metal salt improves the operation of the gasifier.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: February 25, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Glen E. Phillips, Simon R. Kelemen, Walter Weissman
  • Publication number: 20140030601
    Abstract: The carbon material for a negative electrode of a lithium ion secondary battery includes: particles having a structure including a plurality of stacked plates which are prepared from a raw coke materials obtained by a delayed coking method, where the ratio of the total of the generation rate of a hydrogen gas, a hydrocarbon gas having one carbon atom, and a hydrocarbon gas having two carbon atoms and the formation rate of a raw coke materials satisfies the condition: total of generation rate/formation rate=0.30 to 0.60, and where the structure is curved into a bow shape, and where, in each of the plates, an average plate thickness is defined as T, an average bow height including the plate thickness is defined as H, and an average length in the vertical direction is defined as L, L/T is 5.0 or more and H/T is from 1.10 to 1.25.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Tamotsu TANO, Hiroshi OZAWA, Takashi OYAMA, Takashi SUZUKI, Masatoshi NISHIDA
  • Patent number: 8603325
    Abstract: A biomass pyrolysis oil is used as a co-feed for a heavy petroleum oil coking process to improve the operation of the coking process and to utilize biomaterial for the production of transportation fuels. The coking process may be a delayed coking process or a fluidized bed coking process and in each case, the presence of the biomass pyrolysis oil will decrease the coke drying time while reducing coke handling problems in the unit besides forming a superior coke product. In the case of a fluidized bed coking process using a gasifier for the coke, the addition of an alkali metal salt improves the operation of the gasifier.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: December 10, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Glen E. Phillips, Simon R. Kelemen, Walter Weissman
  • Patent number: 8568584
    Abstract: A method is described for controlling instability of operation in a de-ethanizer tower (13) in the gas recovery unit in fluid catalytic cracking units and delayed coking units. The method comprises the step of intervening in the de-ethanizer tower (13) when instability occurs in it, and adjusting the material balance of water in such a way that the excess of water in the feed load stream (9) is removed only as an azeotrope. The intervention is performed by introducing into the feed load stream (9) of the de-ethanizer tower (13) a volume fraction (18) of a flow of hydrocarbon, which may be either dry hydrocarbons or hydrocarbons with a low level of water content.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 29, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Mario de Sousa Almeida, Neyde Alexandra Fraga Marques, Francisco Carlos da Costa Barros, Claudine Toledo Alvares da Silva Costa
  • Publication number: 20130240408
    Abstract: The current invention provides an improved petroleum coking process wherein the risk of silicone poisoning of units downstream of the coke drums is reduced. The method of the current invention controls the foam layer within the coke drum by injection of a silicone anti-foam agent in a highly aromatic carrier fluid such as slurry oil.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 19, 2013
    Applicant: Foster Wheeler USA Corporation
    Inventors: John Daniel Elliott, Jerry Neil Waggoner
  • Patent number: 8535516
    Abstract: An efficient delayed coking process improvement for producing heavy coker gas oil of sufficient quality to be used as hydrocracker feedstock.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 17, 2013
    Assignee: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventors: John D. Ward, Lisa M. Strassle, Kevin Sitton
  • Publication number: 20130213858
    Abstract: Undesirable components of traditional coking processes are selectively cracked or coked in the coking vessel by injecting an additive into the vapors in the coking vessel. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack (or coke) these undesirable components that typically have a high propensity to coke, and are often precursors to coke in the coking process. These undesirable components can also be very problematic in downstream catalytic cracking processes, significantly contributing to coke on catalyst and catalyst deactivation. Exemplary embodiments of the present invention also provide methods to (1) decrease coke production, (2) increase liquid transportation fuels, (3) control the coke crystalline structure, and (4) control the quantity and quality of volatile combustible materials (VCMs) in the resulting coke.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 22, 2013
    Inventor: Roger G. ETTER
  • Patent number: 8512549
    Abstract: A process and apparatus for producing solid petroleum coke. The solid petroleum coke product is formed in a coking drum which has a rotatable coke breaking structure installed therein. Quench water or other quench fluid is delivered into the coking drum to quench the coke product and the coke breaking structure is rotated to break up the coke product such that the coke will empty out of the lower end of the coking drum.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: August 20, 2013
    Inventor: Kazem Ganji
  • Publication number: 20130199967
    Abstract: The invention relates to a coking drum, especially for petroleum coke production, which has an approximately cylindrical basic body and also at least one inlet opening and outlet opening, a shut-off valve (1, 1?) being arranged at the outlet opening and/or inlet opening. The coking drum is characterized in that there is provided, at approximately the same height as the shut-off valve (1, 1?), at least one input opening (19, 19?) for feeding residual materials, especially from a vacuum distillation process upstream of the coking, into the coking drum.
    Type: Application
    Filed: January 29, 2013
    Publication date: August 8, 2013
    Applicant: Z & J Technologies GmbH
    Inventor: Z & J Technologies GmbH
  • Patent number: 8496805
    Abstract: Petroleum cokes derived from extra-heavy crude sources can be made more amenable to quenching by adding water or a water/light oil mixture to the coker feed downstream of the furnace. The coke product resulting from this addition of normally volatile liquids to the hot coker feed is still relatively dense but is more friable and usually is in a compact, relatively free-flowing, granular form. The coke is more amenable to uniform quenching in the drum and so can be cut and discharged with a reduced risk of eruptions and a reduced risk of fires in the coke pit or when the coke is subsequently handled and transported.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: July 30, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Craig Y. Sabottke, Fritz A. Bernatz, Eric W. Fryatt, Christopher P. Eppig, Jordan K. Lambert
  • Patent number: 8491779
    Abstract: The present invention relates to a process for the pretreatment of heavy oils using a catalytic hydrotreating process prior to introduction to a refinery. More specifically, the invention relates to the use of an HDM reactor and an HDS reactor in order to improve the characteristics of the heavy oil, such that when the oil is introduced into the refinery, the refinery can achieve improved throughputs, increased catalysts life, increased life cycles, and a reduction in overall operation costs.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: July 23, 2013
    Assignee: Saudi Arabian Oil Company
    Inventors: Raheel Shafi, Esam Z. Hamad, Stephane Cyrille Kressmann, Julio Hasselmeyer Moses
  • Publication number: 20130153466
    Abstract: Coke drum assembly is provided with a vessel having a body portion defining an interior, a central axis, and having a lower portion including a sidewall, and at least one feed inlet coupled with the lower portion in fluid communication with the interior of the vessel. The at least one feed inlet is directed toward the central axis of the vessel, and angled upwardly at a feed inlet angle relative to the central axis. At a location opposite the feed inlet, the side wall of the lower portion is angled upwardly at an opposing wall angle relative to the central axis, wherein the feed inlet angle is less than or equal to the opposing wall angle. Method also is provided for delayed coking using the coke drum assembly disclosed herein.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 20, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventor: ExxonMobil Research and Engineering Company
  • Patent number: 8445547
    Abstract: Liquefied petroleum coke (LPC) comprises diesel engine fuel grade petroleum coke that is produced by subjecting crude oil refinery feedstock to de-salting, coking, micronization, de-ashing, and slurrification processes to reduce impurities such as metallic components and make the LPC suitable for use in internal combustion engines, such as diesel engine systems.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: May 21, 2013
    Inventors: Alfred Jorgensen, Roger J. Swenson
  • Patent number: 8420875
    Abstract: The conversion of waste plastics material to hydrocarbon fuel products, particularly transportation fuels. The waste plastics material can be obtained from any suitable source, such as a municipal solid waste facility and from agricultural and horticultural activity. The plastics material feed, which can contain from about 10 to about 50 wt. % dirt, is reduced to an effective size, then dried, if needed, to a moisture level of 2 wt. % and less, then screened to removed dirt, then densified into nuggets of at least about 10 lb/ft3, then pyrolyzed.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 16, 2013
    Assignee: Rational Energies, LLC
    Inventors: Ian Mackay, Karl Greden
  • Patent number: 8419931
    Abstract: The current invention provides an improved petroleum coking process wherein the risk of silicone poisoning of units downstream of the coke drums is eliminated. The method of the current invention controls the foam layer within the coke drum by injection of a non-silicone anti-foam agent, preferably a tire oil. In another embodiment, the current invention provides a controlled foaming method which increases the liquid production from the coke drum. In the controlled foaming method, an anti-foam agent is cyclically injected into the drum early in the coke drum fill cycle. The cyclic injections manage the foam layer without inducing the induction phase in the coke feedstock, thereby increasing the total volume of feedstock received by the coke drum.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: April 16, 2013
    Assignee: The University of Tulsa
    Inventor: Michael Volk, Jr.
  • Patent number: 8394257
    Abstract: A reactor process added to a coking process to modify the quantity or yield of a coking process product and/or modify certain characteristics or properties of coking process products.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: March 12, 2013
    Inventor: Roger G. Etter
  • Patent number: 8372264
    Abstract: Heavy gas oil components, coking process recycle, and heavier hydrocarbons in the delayed coking process are cracked in the coking vessel by injecting a catalytic additive into the vapors above the gas/liquid-solid interface in the coke drum during the coking cycle. The additive comprises cracking catalyst(s) and quenching agent(s), alone or in combination with seeding agent(s), excess reactant(s), carrier fluid(s), or any combination thereof to modify reaction kinetics to preferentially crack these components. The quenching effect of the additive can be effectively used to condense the highest boiling point compounds of the traditional recycle onto the catalyst(s), thereby focusing the catalyst exposure to these target reactants. Exemplary embodiments of the present invention can also provide methods to (1) reduce coke production, (2) reduce fuel gas production, and (3) increase liquids production.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: February 12, 2013
    Inventor: Roger G. Etter
  • Patent number: 8372265
    Abstract: Undesirable gas oil components are selectively cracked or coked in a coking vessel by injecting an additive into the vapors of traditional coking processes in the coking vessel prior to fractionation. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack or coke these undesirable components that typically have a high propensity to coke. Exemplary embodiments of the present invention also provide methods to control the (1) coke crystalline structure and (2) the quantity and quality of volatile combustible materials (VCMs) in the resulting coke. That is, by varying the quantity and quality of the catalyst, seeding agent, and/or excess reactant the process may affect the quality and quantity of the coke produced, particularly with respect to the crystalline structure (or morphology) of the coke and the quantity & quality of the VCMs in the coke.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: February 12, 2013
    Inventor: Roger G. Etter
  • Patent number: 8361310
    Abstract: Gas oil components, coking process recycle, and heavier hydrocarbons are cracked or coked in the coking vessel by injecting an additive into the vapors of traditional coking processes in the coking vessel. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack or coke these components. Modifications of the catalysts in the additive improve performance for certain desired outcomes. One exemplary embodiment of the present invention uses the olefin production capabilities from newly developed catalysts to increase the production of light olefins (e.g. ethylene, propylenes, butylenes, pentenes) for alkylation process unit feed, the production of oxygenates, and petrochemical feedstocks, such as plastics manufacture. Another exemplary embodiment of the present invention is the use of the olefin production from newly developed catalysts to improve the coker naphtha quality.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: January 29, 2013
    Inventors: Roger G. Etter, Augusto Quinones
  • Patent number: 8349169
    Abstract: A control system for performing a global-decoke of a tube furnace comprising a plurality of passes.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 8, 2013
    Inventor: Leslie D. Osborne, III
  • Publication number: 20120285862
    Abstract: A process and apparatus for improving the production of coke having a high volatile combustible material content are disclosed. The process may include, for example: heating a coker feedstock to a coking temperature to produce a heated coker feedstock; contacting the heated coker feedstock with a quench medium to reduce a temperature of the heated coker feedstock and produce a quenched feedstock; feeding the quenched feedstock to a coking drum; subjecting the quenched feedstock to thermal cracking in the coking drum to (a) crack a portion of the quenched feedstock to produce a cracked vapor product, and (b) produce a coke product having a volatile combustible material (VCM) concentration in the range from about 13% to about 50% by weight, as measured by ASTM D3175.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: CATALYTIC DISTILLATION TECHNOLOGIES
    Inventors: Ahmad Faegh, John C. Collins, Virendra Manral, Gary Reisen
  • Patent number: 8206574
    Abstract: A reactor process added to a coking process to modify the quantity or yield of a coking process product and/or modify certain characteristics or properties of coking process products.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 26, 2012
    Inventor: Roger G. Etter
  • Patent number: 8197668
    Abstract: A process and apparatus are provided for upgrading steam cracker tars from steam crackers. The invention also relates to a steam cracking process and apparatus for reducing yields of tars produced from steam cracking while increasing yields of higher value products by heating steam cracker tar, in the presence of hydrogen donor compounds, e.g., tetralin. The hydrogen donor compounds can be provided in a hydrogen donor-rich hydrocarbon stream, e.g., light cycle oils, or low sulfur vacuum tower bottoms. The treated tar can be separated into gas oil, fuel oil and tar streams.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 12, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John D. Y. Ou, Glenn A. Heeter, Paul F. Keusenkothen, James N. McCoy, Judith Hey, legal representative
  • Patent number: 8177964
    Abstract: A process of delayed coking with modified feedstock is described maximising the volume of diesel oil and minimising the volume of coke produced by means of feedstock which comprises, in a first embodiment of the invention: the bottom product (8) of the vacuum distillation tower (6), known in the prior art as vacuum residuum, and a fraction (7?) of heavy vacuum gas oil (7) obtained in the aforesaid vacuum distillation. In a second embodiment of the present invention the bottom residuum (5) proceeding from the atmospheric distillation tower (2), known in the prior art as atmospheric residuum, is employed as feedstock of a Delayed Coking Unit (9).
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: May 15, 2012
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Gloria Maria Gomes Soares, Natalie Jorge Goncalves, Francisco Carlos Da Costa Barros, Sergio Cunha De Lucena, Aline Voigt Nadolni, Sergio Nunes Da Costa