Patents Assigned to Shanghai Research Institute of Petrochemical Technology Sinopec
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Publication number: 20130331618Abstract: A method for improving the quality of ethylene glycol products, which mainly solves the technical problem of low UV-light transmittance of the ethylene glycol products present in the prior art. The method successfully solves the problem by use of the technical solution wherein the ethylene glycol raw material and hydrogen are passed through a rotating packed bed reactor loaded with solid oxide catalyst at a temperature of about 20 to about 280 ° C., a pressure of about 0.1 to about 4.0 MPa, a space velocity of about 0.2 to about 100.0 hr?1 and a molar ratio of hydrogen to ethylene glycol of from about 0.01 to 40:1, and ethylene glycol is obtained after the reaction. The solid oxide catalyst is at least one of copper-based, nickel-based and palladium-based catalysts, and the rotation rate of the rotating packed bed reactor is about 300 to about 5000 rpm.Type: ApplicationFiled: February 24, 2012Publication date: December 12, 2013Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Juntao Liu, Yuhong Zhang, Wanmin Wang
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Publication number: 20130317179Abstract: This invention relates to a supported quaternary phosphonium catalyst, preparation thereof and use thereof in producing dialkyl carbonates. The supported quaternary phosphonium catalyst of this invention has the following average molecular structure (I), and is characterized by a relatively high and stable catalyst activity. wherein, each of X, L, n, R1, R2, R3 and is the same as that in the specification.Type: ApplicationFiled: May 15, 2013Publication date: November 28, 2013Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Liangfeng CHEN, Wenjun HE
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Patent number: 8580702Abstract: The present invention discloses a catalyst for toluene shape selective disproportionation, comprising: a) 45 to 95 wt % of ZSM-5 molecular sieve having an average particle size of from 0.3 to 6 ?m and a molar ratio of SiO2 to Al2O3 of from 20 to 120; b) 0.01 to 30 wt % of at least one metal selected from the group consisting of Group IIB metals, Group IIIB metals, rare earth elements and Group VIII metals other than nickel, or oxide(s) thereof; c) 0 to 20 wt % of at least one metal selected from the group consisting of Group VA metals, Group VIB metals and alkaline earth metals, or oxide(s) thereof; d) 1 to 25 wt % of a silica inert surface coating derived from an organopolysiloxane; and e) 1 to 50 wt % of a binder. The present invention further discloses a process for shape selectively disproportionating toluene into p-xylene, comprising contacting a reaction stream containing toluene with the catalyst for toluene shape selective disproportionation under toluene disproportionation conditions.Type: GrantFiled: November 2, 2007Date of Patent: November 12, 2013Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zaiku Xie, Dejin Kong, Zhirong Zhu, Wei Li, Qingling Chen, Rong Zhang
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Patent number: 8574522Abstract: A process for selective oxidative dehydrogenation of a hydrogen-containing CO mixed gas, comprising contacting a hydrogen-containing CO mixed gas raw material with at least one catalyst entity having an increased activity gradient disposed in a reactor under at least one reaction condition chosen from a reaction temperature ranging from 100 to 300° C., a volume space velocity ranging from 100 to 10000 h?1, and a reaction pressure ranging from ?0.08 to 5.0 MPa, wherein the molar ratio of oxygen to hydrogen in the raw material ranges from 0.5:1 to 5:1.Type: GrantFiled: April 15, 2011Date of Patent: November 5, 2013Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Juntao Liu, Siqin Li, Linna Zhang, Lei Li, Jun Kuai
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Publication number: 20130237730Abstract: A process of producing isopropyl benzene which solves the problem of high amount of n-propyl benzene according to the prior art. The process separates the polyisopropyl benzene through a suitable rectification into two streams of relatively lighter and heavier components, wherein the content of diisopropylbenzene in the stream of relatively lighter components is controlled to be at least greater than 95 wt %, and the content of tri-isopropyl benzene in the stream of relatively heavier components is controlled to be at least greater than 0.5 wt %. Such a technical solution subjecting the two streams respectively to the transalkylation solves the problem raised from the prior art, and is useful for the industrial production of isopropyl benzene.Type: ApplicationFiled: November 15, 2011Publication date: September 12, 2013Applicants: Shanghai Research Institute of Petrochemical Technology, SINOPEC, China Petroleum & Chemical CorporationInventors: Huanxin Gao, Bin Zhou, Yilun Wei, Ruifang Gu, Hua Fang, Shufang Ji, Hui Yao
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Publication number: 20130225397Abstract: The present invention relate to a binderless molecular sieve catalyst and a process for preparing the same, which are mainly useful for solving the problems of the current catalysts, such as lower activity, less pore volume and worse diffusivity. The present invention relates to a novel binderless molecular sieve catalyst, comprising, based on the weight of the catalyst, 90-100 wt. % of a molecular sieve, 0-10 wt. % of a binder, and 0-10 wt. % of an anti-wear agent, wherein said catalyst has a pore volume of 0.1-0.5 ml/g, an average pore diameter of 50-100 nm, and a porosity of 20-40%; the anti-wear agent is selected from the rod or needle-like inorganic materials having a length/diameter ratio of 2-20. Said catalyst has the advantages of higher activity, greater pore volume, larger average pore diameter and porosity, and better diffusivity, and well solves said problems and can be used for the industrial preparation of binderless molecular sieve catalysts.Type: ApplicationFiled: August 23, 2011Publication date: August 29, 2013Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Guangwei Ma, Huiming Zhang, Jingxian Xiao, Liang Chen, Xiqiang Chen
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Patent number: 8519208Abstract: Processes for catalytically synthesizing ethylbenzene from ethanol and benzene comprising: 1) reacting a first mixture comprising ethanol and benzene with at least one catalyst chosen from binder-containing alkylation catalysts and binder-free alkylation catalysts in an alkylation reactor to obtain a second mixture comprising residual benzene, ethylbenzene, diethylbenzene, and water; 2) passing the second mixture successively through a benzene recovery tower, an ethylbenzene recovery tower, and a polyethylbenzene recovery tower to obtain separated water, separated benzene, separated ethylbenzene, and separated diethylbenzene; and 3) reacting a third mixture with at least one transalkylation catalyst in a transalkylation reactor, wherein the third mixture comprises at least some of the separated benzene and at least some of the separated diethylbenzene at a weight ratio ranging from about 2:1 to about 10:1.Type: GrantFiled: June 13, 2011Date of Patent: August 27, 2013Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, SinopecInventors: Weimin Yang, Hongmin Sun, Wenjie Liu, Bin Zhang, Zhenhao Shen, Mingyao Huan, Hongyu Zhang
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Publication number: 20130197265Abstract: The present invention relates to a process of producing oxalate by CO gas phase method for chiefly solving the technical problem of the low utilization efficiency of nitrogen oxides or nitrous acid esters in the prior art.Type: ApplicationFiled: April 13, 2011Publication date: August 1, 2013Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Juntao Liu, Fengxia Sun, Jun Kuai
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Publication number: 20130178681Abstract: The invention provides a start-up method for a reaction-regeneration unit for preparing light olefins from methanol, which comprises: (a) heating a regenerator with an auxiliary combustion chamber and a reactor with a start-up furnace; (b) charging a catalyst into the regenerator and reactor; (c) closing a spent catalyst slide valve and a regenerated catalyst slide valve after the reactor reaches about 350° C. or more; (d) feeding methanol to the reactor after the dense phase stage of the regenerator reaches about 350° C. or more; (e) opening the spent catalyst slide valve and introducing a carbon deposited catalyst from the reactor to the regenerator after the dense phase stage reaches about 400° C. or more and the average amount of carbon deposits on the catalyst in the reactor reaches about 2.5% or more; (f) raising the regenerator to above about 580° C.; and (g) stopping the start-up furnace and auxiliary combustion chamber.Type: ApplicationFiled: January 8, 2013Publication date: July 11, 2013Applicants: Shanghai Research Institute of Petrochemical Technology, SINOPEC, China Petroleum & Chemical CorporationInventors: China Petroleum & Chemical Corporation, Shanghai Research Institute Of Petrochemical Technology, SINOPEC
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Patent number: 8476469Abstract: A process of producing C1-C4 alkyl nitrite, comprising the following steps: a) firstly feeding nitrogen oxide and oxygen into Reactor I, contacting with an aluminosilicate catalyst, and reacting to produce an effluent I containing NO2 and unreacted NO; b) feeding the effluent I and C1-C4 alkanol into Reactor II, and reacting to produce an effluent II containing C1-C4 alkyl nitrite; and c) separating the effluent II containing C1-C4 alkyl nitrite to obtain C1-C4 alkyl nitrite; wherein reactor I is a fixed bed reactor, and Reactor II is a rotating high-gravity reactor; said nitrogen oxide in step a) is NO, or a mixed gas containing NO and one or more of N2O3 and NO2, wherein the molar number of NO is greater than that of NO2, if any; and the molar ratio of NO in nitrogen oxide to oxygen is 4-25:1.Type: GrantFiled: April 14, 2011Date of Patent: July 2, 2013Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SINOPECInventors: Juntao Liu, Weimin Yang, Wanmin Wang, Linna Zhang
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Publication number: 20130079549Abstract: A process of producing oxalate by CO gas phase method includes the following steps: a) introducing nitrite salt, water and an inorganic acid first into a reactor I to produce a NO containing effluent I; and separating the resultant effluent to obtain the effluent II of NO; b) introducing the effluent II of NO, a C1-C4 alkanol and oxygen into a reactor II to be subjected to the reaction, and separating the resultant effluent to obtain the effluent IV of C1-C4 alkyl nitrites; c) introducing the effluent IV of C1-C4 alkyl nitrites and a CO gas stream into a coupling reactor where they are reacted to produce a NO containing effluent VI. The reactor I and/or the reactor II are preferably rotating supergravity reactors. Therefore, the process is applicable to the industrial production of oxalate by CO gas phase method.Type: ApplicationFiled: June 9, 2011Publication date: March 28, 2013Applicants: Shanghai Research Institute of Petrochemical Technology, Sinopec, China Petroleum & Chemical CorporationInventors: Weimin Yang, Juntao Liu, Wanmin Wang, Lei Li
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Patent number: 8309778Abstract: The present invention provides a catalyst comprising metallic Pt and/or Pd supported on a binder-free zeolite for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock, wherein the amount of metallic Pt and/or Pd is of 0.01-0.8 wt %, preferably 0.01-0.5 wt % on the basis of the total weight of the catalyst, and the binder-free zeolite is selected from the group consisting of mordenite, beta zeolite, Y zeolite, ZSM-5, ZSM-11 and composite or cocrystal zeolite thereof. The present invention also provides a process for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock using said catalyst.Type: GrantFiled: November 7, 2011Date of Patent: November 13, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Deju Wang, Zhongneng Liu, Xueli Li, Minbo Hou, Zheming Wang, Jianqiang Wang
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Patent number: 8304594Abstract: The present invention provides a process for increasing ethylene and/or propylene yield during conversion of oxygenates using a system comprising a reactor and a regenerator, wherein the reactor comprises a fluidized bed reactor and a riser reactor, which process increases ethylene and/or propylene yield by using a mixture of the deactivated catalyst from the fluidized bed reactor and the regenerated catalyst from the regenerator in the riser reactor for further cracking the C4+ hydrocarbon stream separated from the product stream.Type: GrantFiled: July 17, 2008Date of Patent: November 6, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zaiku Xie, Guozhen Qi, Weimin Yang, Siqing Zhong
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Patent number: 8293963Abstract: Provided is a process for crystallization separating p-xylene, comprising: a) feeding a mixed xylenes stream comprising greater than or equal to 60% by weight, of p-xylene, such as 60% to 98% by weight of p-xylene, to a crystallization unit to perform cooling crystallization, to obtain a slurry comprising p-xylene crystals; and b) feeding the slurry to a filtration and purification unit, to obtain a mother liquor, washings, and p-xylene, wherein the filtration and purification unit uses a simulated moving bed or a combination of multiple moving beds.Type: GrantFiled: November 20, 2009Date of Patent: October 23, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Luping Zhong, Jian Xiao, Yongyan Lu, Yanzi Guo, Dejin Kong
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Patent number: 8269036Abstract: Provided are processes for producing an oxalate by coupling of CO in the presence of a nitrite, wherein two or more reaction zones in series are used, and at least a portion of the oxalate as reaction product is separated between the reaction zones, and/or the nitrite is fed stagewise. The processes described herein can effectively enhance the selectivity to the oxalate and the single-pass conversion of the feedstock.Type: GrantFiled: December 18, 2009Date of Patent: September 18, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Juntao Liu, Zhiyan Zhu, Wanmin Wang, Lei Li
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Patent number: 8236726Abstract: The present invention discloses a Ni-based catalyst useful in selective hydrogenation, comprising the following components supported on an alumina support: (a) 5.0 to 40.0 wt. % of metallic nickel or oxide(s) thereof; (b) 0.01 to 20.0 wt. % of at least one of molybdenum and tungsten, or oxide(s) thereof; (c) 0.01 to 10.0 wt. % of at least one rare earth element or oxide(s) thereof; (d) 0.01 to 2.0 wt. % of at least one metal from Group IA or Group IIA of the Periodic Table or oxide(s) thereof; (e) 0 to 15.0 wt. % of at least one selected from the group consisting of silicon, phosphorus, boron and fluorine, or oxide(s) thereof; and (f) 0 to 10.0 wt. % of at least one metal from Group IVB of the Periodic Table or oxide(s) thereof; with the percentages being based on the total weight of the catalyst. The catalyst is useful in the selective hydrogenation of a pyrolysis gasoline.Type: GrantFiled: September 20, 2007Date of Patent: August 7, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zhongneng Liu, Zaiku Xie, Xiaoling Wu, Minbo Hou, Xinghua Jiang, Hongyuan Zong
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Patent number: 8178734Abstract: Provided are processes for producing ethylene glycol from oxalate(s), wherein two or more reaction zones in series are used, and oxalate feedstock is fed stagewise, or hydrogen feedstock and optionally a solvent are fed stagewise. The present processes achieve higher selectivity for the product and improved stability of catalysts.Type: GrantFiled: December 18, 2009Date of Patent: May 15, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Juntao Liu, Weimin Yang, Fengxia Sun, Siqing Zhong, Wanmin Wang
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Publication number: 20120053382Abstract: The present invention provides a catalyst comprising metallic Pt and/or Pd supported on a binder-free zeolite for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock, wherein the amount of metallic Pt and/or Pd is of 0.01-0.8 wt %, preferably 0.01-0.5 wt % on the basis of the total weight of the catalyst, and the binder-free zeolite is selected from the group consisting of mordenite, beta zeolite, Y zeolite, ZSM-5, ZSM-11 and composite or cocrystal zeolite thereof. The present invention also provides a process for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock using said catalyst.Type: ApplicationFiled: November 7, 2011Publication date: March 1, 2012Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Deju WANG, Zhongneng LIU, Xueli LI, Minbo HOU, Zheming WANG, Jianqiang WANG
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Patent number: 8110527Abstract: The present invention discloses an alumina support having multiple pore structure, wherein the alumina support has a specific surface area of from 40 to 160 m2/g and a total pore volume of from 0.3 to 1.2 cm3/g; a pore volume of pores having a pore diameter of less than 30 nm comprises 5 to 60% of the total pore volume; a pore volume of pores having a pore diameter of from 30 to 60 nm comprises 20 to 75% of the total pore volume; and a pore volume of pores having a pore diameter of larger than 60 nm comprises 20 to 60% of the total pore volume. The present invention further discloses a catalyst used for selective hydrogenation of a pyrolysis gasoline, comprising: (a) the alumina support according to the invention; and (b) 0.01 to 1.2 wt. % of metal palladium or palladium oxides, based on the weight of the alumina support.Type: GrantFiled: August 2, 2007Date of Patent: February 7, 2012Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Zhongneng Liu, Zaiku Xie, Xinghua Jiang, Xiaoling Wu, Minbo Hou, Hongyuan Zong
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Patent number: 8084657Abstract: A process of making p-xylcne comprising processing a mixed feedstock containing benzene, toluene, C8 aromatic hydrocarbons, C9 and higher aromatic hydrocarbons, and non-aromatic hydrocarbons through a series of operations and various units, including a C9 and higher aromatic hydrocarbon dealkylation unit, a toluene selective disproportionate unit, an adsorption separation unit, an isomerization unit, and a crystallization separation unit.Type: GrantFiled: November 20, 2009Date of Patent: December 27, 2011Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SinopecInventors: Dejin Kong, Hongli Guo, Luping Zhong, Weisheng Yang, Jian Xiao