173 patents
Page 3 of 9
Utility
Modified Y-type molecular sieve, catalytic cracking catalyst comprising the same, their preparation and application thereof
3 Jan 23
A modified Y-type molecular sieve has a rare earth content of about 4-11% by weight on the basis of rare earth oxide, a sodium content of no more than about 0.5 wt % by weight on the basis of sodium oxide, a zinc content of about 0.5-5% by weight on the basis of zinc oxide, a phosphorus content of about 0.05-10% by weight on the basis of phosphorus pentoxide, a framework silica-alumina ratio of about 7-14 calculated on the basis of SiO2/Al2O3 molar ratio, a percentage of non-framework aluminum content to the total aluminum content of no more than about 10%, and a percentage of the pore volume of secondary pores having a pore size of 2-100 nm to the total pore volume of about 20-40%.
Hao Sha, Lingping Zhou, Shuai Yuan, Weilin Zhang, Zhenyu Chen, Mingde Xu, Huiping Tian
Filed: 20 Aug 19
Utility
Composition capable of reducing CO and NOx emissions, preparation method therefor and use thereof, and fluid catalytic cracking method
20 Dec 22
The present invention relates to the field of catalytic cracking, and discloses a composition capable of reducing CO and NOx emissions, the preparation method and use thereof, and a fluidized catalytic cracking method.
Haitao Song, Qiuqiao Jiang, Huiping Tian, Wei Lin, Peng Wang, Yan Sun, Xue Yang, Jiushun Zhang, Zhijian Da
Filed: 5 Jul 18
Utility
Phosphorus-containing molecular sieve, its preparation and application thereof
13 Dec 22
A phosphorus-containing molecular sieve has a phosphorus content of about 0.3-5 wt %, a pore volume of about 0.2-0.95 ml/g, and a ratio of B acid content to L acid content of about 2-10.
Yichao Mao, Mingfeng Li, Xiangyun Long, Runqiang Zhang, Yang Zhao
Filed: 22 Oct 18
Utility
Modified Y-type molecular sieve, catalytic cracking catalyst comprising the same, its preparation and application thereof
6 Dec 22
A modified Y-type molecular sieve has a modifying metal content of about 0.5-6.3 wt % calculated on the basis of an oxide of the modifying metal and a sodium content of no more than about 0.5 wt % calculated on the basis of sodium oxide.
Shuai Yuan, Lingping Zhou, Huiping Tian, Zhenyu Chen, Weilin Zhang, Hao Sha
Filed: 27 Jun 19
Utility
Modified Y-type molecular sieve, catalytic cracking catalyst comprising the same, their preparation and application thereof
6 Dec 22
A modified Y-type molecular sieve has a rare earth content of about 4% to about 11% by weight on the basis of the oxide, a phosphorus content of about 0.05% to about 10% by weight on the basis of P2O5, a sodium content of no more than about 0.5% by weight on the basis of sodium oxide, and an active element content of about 0.1% to about 5% by weight on the basis of the oxide, with the active element being gallium and/or boron.
Lingping Zhou, Hao Sha, Mingde Xu, Weilin Zhang, Shuai Yuan, Zhenyu Chen, Qiuqiao Jiang, Huiping Tian
Filed: 15 Aug 19
Utility
NaY molecular sieve with an aluminum-rich surface and a process of preparing same
6 Dec 22
A NaY molecular sieve with an aluminum-rich surface is prepared using a process that includes the steps of: a. mixing a directing agent and a first silicon source to obtain a first mixture, wherein the directing agent has a molar composition of Na2O:Al2O3:SiO2:H2O=(6-25):1:(6-25):(200-400); b. mixing the first mixture obtained in the step a with a second silicon source, an aluminum source and water to obtain a second mixture; c. carrying out hydrothermal crystallization on the second mixture obtained in the step b, and collecting a solid product.
Qiang Fu, Yongxiang Li, Chengxi Zhang, Hexin Hu, Xuhong Mu, Xingtian Shu
Filed: 27 May 19
Utility
Process for producing propylene and a low-sulfur fuel oil component
6 Dec 22
A process for producing propylene and a low-sulfur fuel oil component, comprising the steps of contacting a heavy feedstock oil with a solvent for extraction separation to obtain a deasphalted oil and a deoiled asphalt; contacting the deasphalted oil and optionally a light feedstock oil with a catalytic conversion catalyst for reaction to obtain a reaction product comprising propylene; separating the reaction product to obtain a catalytic cracking distillate oil, and subjecting the catalytic cracking distillate oil to hydrodesulfurization to obtain a low-sulfur hydrogenated distillate oil, wherein the low-sulfur hydrogenated distillate oil and/or the deoiled asphalt is suitable for use as a fuel oil component.
Youhao Xu, Xuhui Bai, Xinyu Xie, Shouye Cui, Xin Wang, Yanfen Zuo
Filed: 26 Oct 20
Utility
Method for obtaining gravity coefficients for orthogonally oriented accelerometer devices during measurement-while-drilling operations
6 Dec 22
A method for obtaining accuracy gravity coefficients out of three orthogonally oriented accelerometer devices and a thermometer by computing, using a pre-programmed micro-control unit processor, temperature errors, bias error coefficients, sensitivity error coefficients, and orthogonality error coefficients during measurement while drilling operations.
Jun Han, Sheng Zhan
Filed: 12 Nov 21
Utility
Process for producing light olefins and low-sulfur fuel oil components
29 Nov 22
A process for producing propylene and a low-sulfur fuel oil component, comprising the steps of: i) contacting a hydrocarbon-containing feedstock oil with a catalytic conversion catalyst for reaction under effective conditions in a catalytic conversion reactor in the absence of hydrogen to obtain a reaction product comprising propylene; ii) separating the reaction product from step i) to obtain a catalytic cracking distillate oil, and iii) subjecting the catalytic cracking distillate oil to hydrodesulfurization to obtain a low-sulfur hydrogenated distillate oil suitable for use as a fuel oil component.
Youhao Xu, Xin Wang, Yanfen Zuo, Shouye Cui, Xuhui Bai, Xinyu Xie
Filed: 26 Oct 20
Utility
Modified Y-type molecular sieve, catalytic cracking catalyst comprising the same, its preparation and application thereof
22 Nov 22
A modified Y-type molecular sieve having a calcium content of about 0.3-4 wt % calculated on the basis of calcium oxide, a rare earth content of about 2-7 wt % calculated on the basis of rare earth oxide, and a sodium content of no more than about 0.5 wt % calculated on the basis of sodium oxide.
Shuai Yuan, Lingping Zhou, Huiping Tian, Hao Sha, Zhenyu Chen, Weilin Zhang
Filed: 27 Jun 19
Utility
Computer-implemented method and system employing nonlinear direct prestack seismic inversion for poisson impedance
8 Nov 22
A computer-implemented method, and system implementing the method, are disclosed for computing a final model of elastic properties, using nonlinear direct prestack seismic inversion for Poisson impedance.
Fan Xia
Filed: 3 Dec 19
Utility
Dealklylation and transalkylation of mixed phenols to make cresols
1 Nov 22
Processes of producing cresols from a phenols containing feed are described.
Shuguang Zhang, Lubo Zhou
Filed: 4 Feb 19
Utility
Computer-implemented method and system employing compress-sensing model for migrating seismic-over-land cross-spreads
18 Oct 22
A method and a system for implementing the method are disclosed wherein the seismic input data and land acquisition input data may be obtained from a non-flat surface, sometimes mild or foothill topography as well as the shot and receiver lines might not necessarily be straight, and often curve to avoid obstacles on the land surface.
Xiang Xiao
Filed: 11 Jun 20
Utility
Acquiring formation porosity using multiple dual-function detectors and neural network
18 Oct 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
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
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
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
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