479 patents
Page 11 of 24
Utility
Method for purification of a solvent for separation of styrene by extractive distillation and for separation of styrene
11 Oct 22
A method for purification of a styrene-containing feedstock includes steps of introducing the styrene-containing feedstock into the middle of an extractive distillation column, and a solvent for the extractive distillation into the upper part of the column; discharging a raffinate oil from the top of the column, and a rich solvent rich in styrene from the bottom of the column.
Wencheng Tang, Longsheng Tian, Ming Zhao, Siliang Gao, Nan Yang, Siyuan Qie, Zhifeng Bian
Filed: 9 Jan 19
Utility
Polyester composition, preparation method therefor and application thereof
11 Oct 22
Cui Zheng, Guixiang Zhu, Lizhi Liu, Wei Zhang, Xuerong Yao, Minqiao Ren, Ling Han, Yi Ren, Nan Chen, Ying Shi
Filed: 20 Oct 17
Utility
Organic Hydrogen Storage Raw Material Dehydrogenation Catalyst, Carrier of Catalyst, Hydrogen Storage Alloy, and Method for Providing High-purity Hydrogen Gas
6 Oct 22
A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented.
Wei LIN, Xue YANG, Haitao SONG, Min SUN
Filed: 6 May 20
Utility
Reactive Torque Automatic Balancing Device for Screw Drilling Tool, Drilling String, and Method
6 Oct 22
A reactive torque automatic balancing device for a screw drilling tool includes an upper joint (1); a core cylinder (9) having an inner chamber in communication with the screw drilling tool (305) located downstream, so that drilling fluid from the inner chamber of the upper joint (1) flows to the screw drilling tool (305) through the inner chamber of the core cylinder (9) to allow the screw drilling tool to perform drilling; a lower joint (16) fixedly arranged at a lower end of the core cylinder (9); and an automatic balancing assembly, which is arranged between an outer wall of the core cylinder (9) and an inner wall of the upper joint (1), and driven by hydraulic pressure generated by a part of the drilling fluid flowing through the inner chamber of the upper joint (1).
Deshuai ZHENG, Menggang LI, Chengcheng NIU, Xiangyang ZHAO, Lingling YU
Filed: 15 Apr 20
Utility
Apparatus and Method for Obtaining Real-time True Formation Porosity using Pulsed Neutron Well Logging Tool having Dual-Function Detectors
29 Sep 22
A method for measuring subterranean formation porosity includes the steps of: deploying a nuclear logging tool having one or more neutron sources and two or more dual-function detectors disposed in into a subterranean formation; causing the one or more neutron sources to emit neutrons in a plurality of neutron pulses into the subterranean formation and generating neutrons and gamma rays in the subterranean formation; obtaining one or more neutron count rates for each of the two or more detectors; determining a formation type of the subterranean formation based on gamma rays received at the one or more detectors; calculating one or more neutron count rate ratios between the neutron count rates of two detectors selected from the two or more detectors; and obtaining one or more formation porosities based on the formation type and the one or more neutron count rate ratios.
Jeremy Zhang, Sheng Zhan
Filed: 4 Mar 22
Utility
Phosphorus-containing Compound and Preparation Method and Use Thereof
15 Sep 22
Minyang ZHUANG, Hui ZHENG, Xinyang LIU, Wei LIU, Yifeng HE
Filed: 21 Oct 20
Utility
Hydrofining catalyst, its preparation and application thereof
13 Sep 22
Disclosed is a hydrofining catalyst comprising: an inorganic refractory component comprising a first hydrodesulfurization catalytically active component in a mixture with at least one oxide selected from the group consisting of alumina, silica, magnesia, calcium oxide, zirconia and titania; a second hydrodesulfurization catalytically active component; and an organic component comprising a carboxylic acid and optionally an alcohol.
Wenbin Chen, Le Zhang, Xiangyun Long, Hong Nie, Mingfeng Li, Dadong Li, Qinghe Liu, Xueyan Ju
Filed: 9 Apr 19
Utility
Ester polymer, preparation method therefor and use thereof
13 Sep 22
Cheng Li, Songbai Tian, Xiaowei Wang, Qundan Zhang, Hu Li, Xinyu Zhu
Filed: 16 May 18
Utility
Super-wet Surface and Preparation Method Therefor and Application Thereof
8 Sep 22
A super-wet surface is a polypropylene surface, on which a hydrophilic side group is grafted, having a micro-nano structure.
Jinliang QIAO, Songhe WANG, Xiaohong ZHANG, Guicun QI, Zhihai SONG, Chuanlun CAI, Xiang WANG, Jinmei LAI, Binghai LI, Haibin JIANG, Yue RU, Jiangru ZHANG, Jianming GAO, Hongbin ZHANG, Peng HAN, Chao JIANG, Zhaoyan GUO
Filed: 4 Aug 20
Utility
Process for Isobutanol Production from Ethanol and Syngas
8 Sep 22
Processes for converting ethanol and syngas (CO and H2) to isobutanol are disclosed.
Jinbiao GUO, Richard LONG, Tian RUAN
Filed: 19 Sep 19
Utility
Diimine Metal Complex, Preparation Method Therefor, and Application Thereof
8 Sep 22
Rong GAO, Jingjing LAI, Zifang GUO, Qingqiang GOU, Junling ZHOU, Dongbing LIU, Xiaofan ZHANG, Jie LIN, Xinyang LI, Junhui ZHANG, Yuanning GU, Yan LI, Jingyan AN, Jie FU, Yanhong WAN
Filed: 30 Oct 20
Utility
Process of cultivating microalgae and a joint method of same with a denitration process
6 Sep 22
The present invention provides a process of cultivating microalgae and a joint method of same jointed with denitration.
Junfeng Rong, Xuhua Zhou, Lin Cheng, Junying Zhu, Xugeng Huang, Baoning Zong
Filed: 17 Mar 15
Utility
Full Conversion Method and Device for Producing Light Aromatic Hydrocarbons from Light Cycle Oil
1 Sep 22
Provided are a full conversion process and a device thereof for producing light aromatic hydrocarbon from LCO.
Junlin ZHENG, Xiangdong JIANG, Qi SONG, Dejin KONG
Filed: 4 Aug 20
Utility
Catalytic cracking process for producing isobutane and/or light aromatics in high yield
30 Aug 22
Disclosed is a catalytic cracking process for producing isobutane and/or light aromatics in high yield, comprising the steps of: a) providing a catalytic cracking feedstock oil having a polycyclic naphthene content of greater than about 25 wt %; b) subjecting the catalytic cracking feedstock oil to a first catalytic cracking reaction and a second catalytic cracking reaction sequentially under different reaction conditions to obtain a catalytic cracking product; c) separating the resulting catalytic cracking product to obtain a liquefied gas fraction comprising isobutane and a gasoline fraction comprising light aromatics; and d) optionally, recovering isobutane from the liquefied gas fraction and/or recovering light aromatics from the gasoline fraction.
Youhao Xu, Xin Wang, Yuying Zhang, Tao Liu, Xuhui Bai, Lishun Dai, Zhigang Zhang, Jialin Liang, Nan Jiang
Filed: 22 Oct 18
Utility
Supported Catalyst, Preparation Method Therefor and Application Thereof
25 Aug 22
A supported catalyst has a support and a metal active component disposed on the support.
Songtao DONG, Zhihai HU, Guangle ZHAO, Ping YANG, Yang ZHAO
Filed: 29 Oct 20
Utility
Catalyst for Dehydrogenating Organic Hydrogen Storage Raw Material, Carrier for Catalyst, Hydrogen Storage Alloy, and Method for Providing High Purity Hydrogen
18 Aug 22
A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented.
Wei LIN, Xue YANG, Haitao SONG, Min SUN
Filed: 6 May 20
Utility
Composite Layer Agglomerating Adsorbent and Preparation Process Thereof
18 Aug 22
The present invention provides a composite layer agglomerating adsorbent, comprising an outer adsorbent layer containing a low silica X molecular sieve and an inner adsorbent layer containing a high silica X molecular sieve, the low silica X molecular sieve has a silica/alumina molar ratio of 2.07-2.18, the high silica X molecular sieve has a silica/alumina molar ratio of 2.2-2.5, based on the total amount of the adsorbent, the adsorbent comprises 95.0-100 mass % of the X molecular sieve and 0-5.0 mass % of the matrix, the cation sites of the X molecular sieve in the adsorbent are occupied by a metal of Group IIA or occupied together by a metal of Group IA and a metal of Group IIA.
Ningning GAO, Huiguo WANG, Yusi LIU
Filed: 4 Jun 20
Utility
Rare Earth-containing Y Zeolite, Preparation Process Thereof, and Catalytic Cracking Catalyst Containing the Zeolite
18 Aug 22
A rare earth-containing Y zeolite has at least two mesopore pore-size distributions at 2-3 nanometers and 3-4 nanometers.
Yibin LUO, Chengqiang WANG, Jinyu ZHENG, Xingtian SHU
Filed: 9 Jul 20
Utility
Acquiring Formation Porosity Using Multiple Dual-Function Detectors and Neural Network
11 Aug 22
A method and apparatus of logging downhole formation and obtaining formation porosity using a pulsed neutron generator and multiple dual-function detectors that detect both neutrons and gamma rays.
Sheng Zhan, Jeremy Zhang
Filed: 2 Sep 21
Utility
Nuclear Logging Tools and Applications Thereof
11 Aug 22
A nuclear logging tool has a housing, one or more neutron sources, one or more shields, and two or more detectors disposed about the housing.
Jeremy Zhang, Sheng Zhan
Filed: 28 May 21