Patents by Inventor Lifeng Hu
Lifeng Hu 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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Patent number: 11975641Abstract: The present invention relates to a sewing structure for a seat cover, comprising a first cut piece (1), a second cut piece (2), a first sewing thread (3), a second sewing thread (4) and an inlay (5), wherein the first and the second cut piece in an overlapped status are sewn together by the first and the second sewing thread which are spaced apart from each other, wherein the inlay is arranged between the first and the second cut piece and between the first and the second sewing thread.Type: GrantFiled: March 5, 2020Date of Patent: May 7, 2024Assignee: Yanfeng International Automotive Technology Co., Ltd.Inventors: Qibin Zhou, Yaoyuan Ding, Lifeng Hu
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Publication number: 20240147779Abstract: A terminal device, a display apparatus, and a display panel and a manufacturing method therefor. The display panel comprises: a drive backplane, which has a display region comprising a light-transmitting display region and a main display region, the light-transmitting display region comprising a light-transmitting region; a pixel definition layer, which comprises openings including a first opening and a second opening; a plurality of light-emitting devices defined in the openings; and a color film layer. The opening spacing between two adjacent first openings satisfies a specific relational expression, thereby improving the light transmittance and also preventing cross-color.Type: ApplicationFiled: October 28, 2021Publication date: May 2, 2024Inventors: Lifeng CHEN, Yao HU, Ruoxiang LI, Qifu RAN
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Patent number: 11912643Abstract: A liquid-solid axial moving bed reaction and regeneration apparatus and a solid acid alkylation process by using the liquid-solid axial moving bed reaction and regeneration apparatus.Type: GrantFiled: October 22, 2019Date of Patent: February 27, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Lifeng Hu, Shuandi Hou, Junyi Mao, Zhenxing Zhu, Xiaojin Tang, Zheng Liu, Yongxiang Li, Zhihai Zhao
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Patent number: 11759726Abstract: A liquid phase alkylation product from an alkylation reaction unit is introduced into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column n, then introduced into a second heat-exchanger and further heated to 100° C.-150° C., then introduced into the high-pressure fractionating column and subjected to fractionation at 2.0 MPa-4.0 MPa, the vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under at 0.2 MPa-1.Type: GrantFiled: September 6, 2019Date of Patent: September 19, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Qing Yuan, Junyi Mao, Zhenxing Zhu, Tao Huang, Zhihai Zhao, Yongxiang Li, Lifeng Hu, Xiaojin Tang
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Patent number: 11655423Abstract: A process for separating an alkylation product includes introducing a liquid phase alkylation product from an alkylation reaction unit into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column, then into a second heat-exchanger and subsequently into the high-pressure fractionating column. The vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under a condition of 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.Type: GrantFiled: September 6, 2019Date of Patent: May 23, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Qing Yuan, Junyi Mao, Zhenxing Zhu, Tao Huang, Zhihai Zhao, Yongxiang Li, Lifeng Hu, Xiaojin Tang
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Publication number: 20230055534Abstract: The present invention relates to a sewing structure for a seat cover, comprising a first cut piece (1), a second cut piece (2), a first sewing thread (3), a second sewing thread (4) and an inlay (5), wherein the first and the second cut piece in an overlapped status are sewn together by the first and the second sewing thread which are spaced apart from each other, wherein the inlay is arranged between the first and the second cut piece and between the first and the second sewing thread.Type: ApplicationFiled: March 5, 2020Publication date: February 23, 2023Applicant: Yanfeng International Automotive Technology Co., Ltd.Inventors: Qibin ZHOU, Yaoyuan DING, Lifeng HU
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Publication number: 20220177392Abstract: A method for preparing 2-alkylanthracene includes the step of separating 2-alkylanthracene from a reaction product of anthracene alkylation reaction. The anthracene alkylation reaction is a reaction of anthracene and an alkylation reagent under an alkylation condition and in the presence of an alkylation reaction solvent and a catalyst. The reaction product of the anthracene alkylation reaction contains anthracene and the product of a series of alkylanthracenes containing 2-alkylanthracene.Type: ApplicationFiled: March 10, 2020Publication date: June 9, 2022Inventors: Baoning ZONG, Bo ZHENG, Zhenxing ZHU, Zhiyong PAN, Siyuan QIE, Guohua GAO, Jianqi FEI, Junyi MAO, Xiaojin TANG, Lifeng HU, Zheng LIU
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Publication number: 20210394143Abstract: A liquid-solid radial moving bed reaction apparatus and a solid acid alkylation process by using the liquid-solid radial moving bed reaction apparatus, the liquid-solid radial moving bed reaction apparatus comprises: A radial moving bed reactor, a spent catalyst receiver, a catalyst regenerator, and a regenerated catalyst receiver that are successively connected, wherein the catalyst discharging outlet of the regenerated catalyst receiver is communicated with the catalyst inlet of the radial moving bed reactor; a reaction stream distribution zone, a catalyst bed, and a stream-after-the-reaction collection zone are arranged in the radial moving bed reactor from the inside to the outside or from the outside to the inside, the reaction stream distribution zone is communicated with the reaction stream feeding pipeline; the stream-after-the-reaction collection zone is communicated with the stream-after-the-reaction withdrawing pipe; A component-based mixer is arranged on the reaction stream feeding pipeline; the cType: ApplicationFiled: October 29, 2019Publication date: December 23, 2021Inventors: Lifeng HU, Shuandi HOU, Junyi MAO, Zhenxing ZHU, Xiaojin TANG, Zheng LIU, Yongxiang LI, Zhihai ZHAO
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Publication number: 20210395167Abstract: A liquid-solid axial moving bed reaction and regeneration apparatus and a solid acid alkylation process by using the liquid-solid axial moving bed reaction and regeneration apparatus.Type: ApplicationFiled: October 22, 2019Publication date: December 23, 2021Inventors: Lifeng HU, Shuandi HOU, Junyi MAO, Zhenxing ZHU, Xiaojin TANG, Zheng LIU, Yongxiang LI, Zhihai ZHAO
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Publication number: 20210324274Abstract: A process for separating an alkylation product includes introducing a liquid phase alkylation product from an alkylation reaction unit into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column, then into a second heat-exchanger and subsequently into the high-pressure fractionating column. The vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under a condition of 0.2 MPa-1.0 MPa, a low-carbon alkane is obtained from the column top of the low-pressure fractionating column, and a liquid phase stream obtained from the column bottom of the low-pressure fractionating column is an alkylation oil product.Type: ApplicationFiled: September 6, 2019Publication date: October 21, 2021Inventors: Qing YUAN, Junyi MAO, Zhenxing ZHU, Tao HUANG, Zhihai ZHAO, Yongxiang LI, Lifeng HU, Xiaojin TANG
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Publication number: 20210322893Abstract: A liquid phase alkylation product from an alkylation reaction unit is introduced into a first heat-exchanger directly or after being pressurized with a pressure pump and heat-exchanged with a vapor phase stream from the column top of a high-pressure fractionating column n, then introduced into a second heat-exchanger and further heated to 100° C.-150° C., then introduced into the high-pressure fractionating column and subjected to fractionation at 2.0 MPa-4.0 MPa, the vapor phase stream from the column top of the high-pressure fractionating column is heat-exchanged with the liquid phase alkylation product to be separated, a liquid phase stream from the column bottom of the high-pressure fractionating column is introduced into a low-pressure fractionating column and subjected to fractionation under at 0.2 MPa-1.Type: ApplicationFiled: September 6, 2019Publication date: October 21, 2021Inventors: Qing YUAN, Junyi MAO, Zhenxing ZHU, Tao HUANG, Zhihai ZHAO, Yongxiang LI, Lifeng HU, Xiaojin TANG
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Patent number: 8263007Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.Type: GrantFiled: March 2, 2011Date of Patent: September 11, 2012Assignees: China Petroleum Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu
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Publication number: 20110165029Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.Type: ApplicationFiled: March 2, 2011Publication date: July 7, 2011Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PERTROLEUM PROCESSING. SINOPECInventors: Zhanzhu ZHANG, Lifeng HU, Xiaojin TANG, Shaobing WANG, Shuandi HOU, Junyi MAO, Hongliang QU
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Patent number: 7919536Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.Type: GrantFiled: May 31, 2007Date of Patent: April 5, 2011Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu
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Publication number: 20090197979Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.Type: ApplicationFiled: May 31, 2007Publication date: August 6, 2009Applicant: CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu