Patents by Inventor Minghua Guan
Minghua Guan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230364545Abstract: A gas purification system includes a dust removal filler, a fouling collection pan and a gas purification device. The dust removal filler has a plurality of rows of channels, each channel extending obliquely with respect to a vertical direction to form a windward surface, and a leeward surface, and a waveform plate. The peak portion of the waveform plate is attached to the leeward surface of the obliquely prismatic channel. During operation, dust adheres to a concave portion of a lower surface of the waveform plate and accumulates to form dust aggregates. When the gravity of the dust aggregates is greater than the adhesion force, the dust aggregates fall onto the windward surface of the channels and slide off from the windward surface of the channels.Type: ApplicationFiled: September 16, 2021Publication date: November 16, 2023Inventors: Deqiang PENG, Minghua GUAN, Ping JIN, Xiangcheng LIANG, Xiuna YANG, Ying YU, Zonglin RUAN
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Patent number: 11731096Abstract: An upflow reactor (1), includes a housing (20), a catalyst bed layer (30) and a pressing device (10). The housing (20) is internally provided with a reaction chamber (210), a reaction material inlet (220) and a reaction material outlet (230) which are in communication with the reaction chamber (210) are provided on the housing (20). The catalyst bed layer (30) is provided within the reaction chamber (210), the pressing device (10) is provided within the reaction chamber (210) and located above the catalyst bed layer (30). At least a part of the pressing device (10) is movable up and down so that the at least a part of the pressing device (10) can be pressed against the catalyst bed layer (30).Type: GrantFiled: December 30, 2019Date of Patent: August 22, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.Inventors: Minghua Guan, Xiuna Yang, Zonglin Ruan, Haochen Wang, Yang Jiang, Guoying Cui, Jiawen Zhou
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Publication number: 20220080375Abstract: An upflow reactor (1), comprising a housing (20), a catalyst bed layer (30) and a pressing device (10). The housing (20) is internally provided with a reaction chamber (210), a reaction material inlet (220) and a reaction material outlet (230) which are in communication with the reaction chamber (210) are provided on the housing (20); the catalyst bed layer (30) is provided within the reaction chamber (210), the pressing device (10) is provided within the reaction chamber (210) and located above the catalyst bed layer (30), and at least a part of the pressing device (10) is provided to be movable up and down, so that the at least a part of the pressing device (10) can be pressed against the catalyst bed layer (30).Type: ApplicationFiled: December 30, 2019Publication date: March 17, 2022Inventors: Minghua GUAN, Xiuna YANG, Zonglin RUAN, Haochen WANG, Yang JIANG, Guoying CUI, Jiawen ZHOU
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Patent number: 11179705Abstract: A modified Y-type molecular sieve contains 0.5-2 wt. % of Na2O based on the total amount of the modified Y-type molecular sieve. In the modified Y-type molecular sieve, the ratio between the total acid amount measured by pyridine and infrared spectrometry and total acid amount measured by n-butyl pyridine and infrared spectrometry is 1-1.2. The total acid amount measured by pyridine and infrared spectrometry of the modified Y-type molecular sieve is 0.1-1.2 mmol/g. The acid center sites of the molecular sieve of the modified Y-type molecular sieve are distributed in the large pore channels. The molecular sieve is used in the hydrocracking reaction process of a wax oil.Type: GrantFiled: November 29, 2017Date of Patent: November 23, 2021Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.Inventors: Wei Liu, Minghua Guan, Yanze Du, Fenglai Wang, Bo Qin, Hang Gao
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Publication number: 20200306736Abstract: A modified Y-type molecular sieve contains 0.5-2 wt. % of Na2O based on the total amount of the modified Y-type molecular sieve. In the modified Y-type molecular sieve, the ratio between the total acid amount measured by pyridine and infrared spectrometry and total acid amount measured by n-butyl pyridine and infrared spectrometry is 1-1.2. The total acid amount measured by pyridine and infrared spectrometry of the modified Y-type molecular sieve is 0.1-1.2 mmol/g. The acid center sites of the molecular sieve of the modified Y-type molecular sieve are distributed in the large pore channels. The molecular sieve is used in the hydrocracking reaction process of a wax oil.Type: ApplicationFiled: November 29, 2017Publication date: October 1, 2020Inventors: Wei LIU, Minghua GUAN, Yanze DU, Fenglai WANG, Bo QIN, Hang GAO
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Patent number: 10525452Abstract: Provided is a Na—Y molecular sieve and a method for preparing the Na—Y molecular sieve, an H—Y molecular sieve and a method for preparing the H—Y molecular sieve, a hydrocracking catalyst, and a hydrocracking method. The average grain diameter of the Na—Y molecular sieve is 2-5 ?m, and the sum of pore volumes of pores in 1-10 nm diameter accounts for 70-90% of the total pore volume of the Na—Y molecular sieve. The H—Y molecular sieve obtained from the large-grain Na—Y molecular sieve can be used as an acidic component in the hydrocracking catalyst. When the hydrocracking catalyst containing the H—Y molecular sieve is applied in the hydrocracking reaction of heavy oils that contain macromolecules, it can provide better cracking activity and product selectivity in the hydrocracking reaction.Type: GrantFiled: February 11, 2019Date of Patent: January 7, 2020Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, FUSHUN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, INOPEC CORP.Inventors: Chang Liu, Fenglai Wang, Minghua Guan, Yanze Du, Wei Huang, Hong Zhao
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Publication number: 20190168193Abstract: Provided is a Na—Y molecular sieve and a method for preparing the Na—Y molecular sieve, an H—Y molecular sieve and a method for preparing the H—Y molecular sieve, a hydrocracking catalyst, and a hydrocracking method. The average grain diameter of the Na—Y molecular sieve is 2-5 ?m, and the sum of pore volumes of pores in 1-10 nm diameter accounts for 70-90% of the total pore volume of the Na—Y molecular sieve. The H—Y molecular sieve obtained from the large-grain Na—Y molecular sieve can be used as an acidic component in the hydrocracking catalyst. When the hydrocracking catalyst containing the H—Y molecular sieve is applied in the hydrocracking reaction of heavy oils that contain macromolecules, it can provide better cracking activity and product selectivity in the hydrocracking reaction.Type: ApplicationFiled: February 11, 2019Publication date: June 6, 2019Inventors: Chang LIU, Fenglai WANG, Minghua GUAN, Yanze DU, Wei HUANG, Hong ZHAO
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Patent number: 10265687Abstract: Provided is a Na—Y molecular sieve and a method for preparing the Na—Y molecular sieve, an H—Y molecular sieve and a method for preparing the H—Y molecular sieve, a hydrocracking catalyst, and a hydrocracking method. The average grain diameter of the Na—Y molecular sieve is 2-5 ?m, and the sum of pore volumes of pores in 1-10 nm diameter accounts for 70-90% of the total pore volume of the Na—Y molecular sieve. The H—Y molecular sieve obtained from the large-grain Na—Y molecular sieve can be used as an acidic component in the hydrocracking catalyst. When the hydrocracking catalyst containing the H—Y molecular sieve is applied in the hydrocracking reaction of heavy oils that contain macromolecules, it can provide better cracking activity and product selectivity in the hydrocracking reaction.Type: GrantFiled: November 19, 2015Date of Patent: April 23, 2019Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, FUSHUN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.Inventors: Chang Liu, Fenglai Wang, Minghua Guan, Yanze Du, Wei Huang, Hong Zhao
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Patent number: 10112186Abstract: Disclosed are a beta molecular sieve, a preparation method therefor, and a hydrogenation catalyst containing same. The properties of the beta molecular sieve are as follows: the molar ratio of SiO2/Al2O3 is 30-150, the non-framework aluminum accounts for not more than 2% of the total aluminum, and the silicon atoms coordinated in a Si(OAl) structure account for not less than 95% of the silicon atoms in the framework structure. The preparation method comprises: contacting the raw material powder of the beta molecular sieve with normal pressure and dynamic water vapor, and then with ammonium fluosilicate. The beta molecular sieve of the present invention has the features of a uniform skeleton structure of silicon and aluminum, an appropriate acidity, and a reasonable pore structure, and is suitable as an acidic component of a hydro-upgrading catalyst and a hydro-cracking catalyst for diesel oil.Type: GrantFiled: October 28, 2014Date of Patent: October 30, 2018Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, FUSHUN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.Inventors: Chang Liu, Fenglai Wang, Keqi Wang, Yanze Du, Hong Zhao, Minghua Guan
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Patent number: 10112840Abstract: The present invention discloses a modified Y molecular sieve, a preparation method and a use of the modified Y molecular sieve, a supported catalyst, and a hydrocracking method. The silica-alumina mole ratio in the surface layer of the modified Y molecular sieve is 20-100:1, and the silica-alumina mole ratio in the body phase of the modified Y molecular sieve is 8-30:1. When a hydrocracking catalyst prepared from the modified Y molecular sieve is used for hydrocracking, the hydrocracking catalyst has higher reactivity and higher nitrogen tolerance. The hydrocracking catalyst prepared from the modified Y molecular sieve is suitable for use for increasing the yield of diesel oil, increasing the yield of chemical materials, and catalyzed hydrogenation conversion of diesel oil, etc.Type: GrantFiled: November 3, 2015Date of Patent: October 30, 2018Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, FUSHUN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS SINOPEC CORP.Inventors: Wei Liu, MingHua Guan, Yanze Du, Fenglai Wang, Chang Liu, Bo Qin
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Patent number: 9937485Abstract: The present invention relates to a hydrocracking catalyst, a process for preparing the same and use thereof. The present catalyst comprises a cracking component and a hydrogenation component, wherein the cracking component comprises from 0 to 20 wt. % of a molecular sieve and from 20 wt. % to 60 wt. % of an amorphous silica-alumina, the hydrogenation component comprises at least one hydrogenation metal in a total amount of from 34 wt. % to 75 wt. % calculated by the mass of oxides, each amount is based on the total weight of the catalyst. The present catalyst is prepared by directly mixing an acidic component powder material with an impregnating solution, impregnating, filtering, drying, molding, and drying and calcining.Type: GrantFiled: October 27, 2016Date of Patent: April 10, 2018Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, FUSHUN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPECInventors: Yanze Du, Minghua Guan, Fenglai Wang, Chang Liu
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Publication number: 20170043323Abstract: The present invention relates to a hydrocracking catalyst, a process for preparing the same and use thereof The present catalyst comprises a cracking component and a hydrogenation component, wherein the cracking component comprises from 0 to 20 wt. % of a molecular sieve and from 20 wt. % to 60 wt. % of an amorphous silica-alumina, the hydrogenation component comprises at least one hydrogenation metal in a total amount of from 34 wt. % to 75 wt. % calculated by the mass of oxides, each amount is based on the total weight of the catalyst. The present catalyst is prepared by directly mixing an acidic component powder material with an impregnating solution, impregnating, filtering, drying, molding, and drying and calcining.Type: ApplicationFiled: October 27, 2016Publication date: February 16, 2017Inventors: Yanze DU, Minghua GUAN, Fenglai WANG, Chang LIU
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Publication number: 20160263563Abstract: Disclosed are a beta molecular sieve, a preparation method therefor, and a hydrogenation catalyst containing same. The properties of the beta molecular sieve are as follows: the molar ratio of SiO2/Al2O3 is 30-150, the non-framework aluminum accounts for not more than 2% of the total aluminum, and the silicon atoms coordinated in a Si(OAl) structure account for not less than 95% of the silicon atoms in the framework structure. The preparation method comprises: contacting the raw material powder of the beta molecular sieve with normal pressure and dynamic water vapour, and then with ammonium fluosilicate. The beta molecular sieve of the present invention has the features of a uniform skeleton structure of silicon and aluminum, an appropriate acidity, and a reasonable pore structure, and is suitable as an acidic component of a hydro-upgrading catalyst and a hydro-cracking catalyst for diesel oil.Type: ApplicationFiled: October 28, 2014Publication date: September 15, 2016Inventors: Chang LIU, Fenglai WANG, Keqi WANG, Yanze DU, Hong ZHAO, Minghua GUAN
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Publication number: 20160229700Abstract: The present invention discloses a modified Y molecular sieve, a preparation method and a use of the modified Y molecular sieve, a supported catalyst, and a hydrocracking method. The silica-alumina mole ratio in the surface layer of the modified Y molecular sieve is 20-100:1, and the silica-alumina mole ratio in the body phase of the modified Y molecular sieve is 8-30:1. When a hydrocracking catalyst prepared from the modified Y molecular sieve is used for hydrocracking, the hydrocracking catalyst has higher reactivity and higher nitrogen tolerance. The hydrocracking catalyst prepared from the modified Y molecular sieve is suitable for use for increasing the yield of diesel oil, increasing the yield of chemical materials, and catalyzed hydrogenation conversion of diesel oil, etc.Type: ApplicationFiled: November 3, 2015Publication date: August 11, 2016Inventors: Wei LIU, MingHua GUAN, Yanze DU, Fenglai WANG, Chang LIU, Bo QIN
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Publication number: 20160151771Abstract: Provided is a Na—Y molecular sieve and a method for preparing the Na—Y molecular sieve, an H—Y molecular sieve and a method for preparing the H—Y molecular sieve, a hydrocracking catalyst, and a hydrocracking method. The average grain diameter of the Na—Y molecular sieve is 2-5 ?m, and the sum of pore volumes of pores in 1-10 nm diameter accounts for 70-90% of the total pore volume of the Na—Y molecular sieve. The H—Y molecular sieve obtained from the large-grain Na—Y molecular sieve can be used as an acidic component in the hydrocracking catalyst. When the hydrocracking catalyst containing the H—Y molecular sieve is applied in the hydrocracking reaction of heavy oils that contain macromolecules, it can provide better cracking activity and product selectivity in the hydrocracking reaction.Type: ApplicationFiled: November 19, 2015Publication date: June 2, 2016Inventors: Chang LIU, Fenglai WANG, Minghua GUAN, Yanze DU, Wei HUANG, Hong ZHAO
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Publication number: 20120006724Abstract: Provided are hydrocracking catalysts comprising a cracking component and a hydrogenation component, wherein, for example: the cracking component comprises at least one molecular sieve present in an amount ranging from 0% to 20% by weight relative to the total weight of the catalyst and at least one amorphous silica-alumina present in an amount ranging from 20% to 60% by weight relative to the total weight of the catalyst; the hydrogenation component comprises at least one hydrogenation metal present in a total amount ranging from 34% to 75% by weight calculated by the mass of oxides, relative to the total weight of the catalyst; and the hydrocracking catalyst has a specific surface area ranging from 150 m2/g to 350 m2/g and a pore volume ranging from 0.20 cm3/g to 0.50 cm3/g, such as from 0.30 cm3/g to 0.45 cm3/g, and the product (M×S) of the percentage amount of the total mass of the hydrogenation metal (M) and the specific surface area (S) is equal to or more than 100 m2/g, i.e., M×S?100 m2/g.Type: ApplicationFiled: July 6, 2011Publication date: January 12, 2012Inventors: Yanze Du, Minghua Guan, Fenglai Wang, Chang Liu
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Patent number: 7238276Abstract: The present invention relates to a medium-pressure hydrocracking process which uses a fresh hydrogen resource and a hydrosaturation catalyst with reduced metals of group VIB and/or group VIII as the active ingredients to selectively and deeply hydrosaturate jet fuel and/or diesel cuts derived in the medium-pressure hydrocracking process.Type: GrantFiled: May 11, 2004Date of Patent: July 3, 2007Assignees: China Petroleum Corporation, Fushun Research Institute of Petroleum and PetrochemicalsInventors: Xiangchen Fang, Ling Lan, Xiaobing Song, Minghua Guan, Guang'an Jiang, Fenglai Wang, Zhengnan Yu, Qun Guo
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Publication number: 20040206668Abstract: The present invention relates to a medium-pressure hydrocracking process which uses a fresh hydrogen resource and a hydrosaturation catalyst with reduced metals of group VIB and/or group VIII as the active ingredients to selectively and deeply hydrosaturate jet fuel and/or diesel cuts derived in the medium-pressure hydrocracking process.Type: ApplicationFiled: May 11, 2004Publication date: October 21, 2004Applicant: China Petroleum Corporation, Fushun Research Institute of Petroleum and PetrochInventors: Xiangchen Fang, Ling Lan, Xiaobing Song, Minghua Guan, Guang'an Jiang, Fenglai Wang, Zhengnan Yu, Qun Guo
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Patent number: 6723297Abstract: An acidic amorphous silica-alumina having large specific surface area and a large pore volume, a carrier complex and a hydrotreating catalyst containing said acidic amorphous silica-alumina, in particular a hydrocracking catalyst containing said acidic amorphous silica-alumina in combination with a modified zeolite-Y for treating petroleum hydrocarbon materials to produce middle distillates, and processes for the preparation thereof. Said amorphous silica-alumina has a SiO2 content of 10-50 wt %, a specific surface area of 300-600 m2/g, a pore volume of 0.8-1.5 ml/g and an IR acidity of 0.25-0.60 mmol/g. The catalyst according to the present invention shows a relatively high activity and mid-distillate selectivity and can be particularly used in hydrocracking process for producing mid-distillates in a higher yield.Type: GrantFiled: April 25, 2002Date of Patent: April 20, 2004Assignees: China Petrochemical Corp., Fushun Research Institute of Petroleum & Petrochemical, SINOPECInventors: Song Chen, Tingyu Li, Guangwei Cao, Minghua Guan
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Patent number: 6670295Abstract: The present invention relates to a highly active midbarrel hydrocracking catalyst and a process for the preparation thereof. The support of the catalyst comprises a modified zeolite-Y, a modified zeolite-&bgr;, alumina, etc. The composite of the modified zeolite-Y and zeolite-&bgr; exhibits a good synergistically catalytic effect. The catalyst prepared by supporting Group VIB and/or Group VIII metal components is useful in the hydrocacking of heavy oils with high content of sulfur and nitrogen to produce high quality middle distillates with maximum output. The activity of and selectivity to middle distillates of the catalyst are remarkably raised simultaneously. Moreover, the solidifying point of the produced diesel is remarkably lowered.Type: GrantFiled: October 25, 2001Date of Patent: December 30, 2003Assignees: China Petroleum and Chemical Corporation, Fushun Research Institute of Petroleum and Petrochemicals Sinopec Corp.Inventors: Fenglai Wang, Zhengnan Yu, Minghua Guan, Liting Dong