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1.发明授权公开(公告)号：US10258965B2
公开(公告)日：2019-04-16
申请号：US14964204
申请日：2015-12-09
发明人： Xiaodong Yang , Yanfeng Liu , Sheng Hu , Chunmei Yu , Hongling Chu , Xinmiao Wang , Shanbin Gao , Bin Xie , Famin Sun , Wencheng Zhang , Jintao Guo , Quanguo Zhang , Lili Jiang , Xiaofeng Wang , Yuanyuan Ji , Ran Sun , Yuxiao Feng , Xianjun Wu , Guojia Zhang , Tan Zhao , Wenyong Liu , Rui Li , Ruifeng Li , Cheng Tang
IPC分类号： B01J23/40 , B01J23/44 , B01J37/02 , B01J37/08 , C10G45/52 , B01J35/00 , B01J35/10 , B01J37/28 , B01J37/00
摘要： The present invention relates to a method for preparing a sulfur-resistant catalyst for aromatics saturated hydrogenation, comprising the steps of: preparing noble metal impregnation solutions from a noble metal and deionized water or an acid solution; impregnating a carrier with the impregnation solutions sequentially from high to low concentrations by incipient impregnation; homogenizing, drying, and calcinating to obtain the sulfur-resistant catalyst for aromatics saturated hydrogenation. The catalyst for aromatics saturated hydrogenation prepared by the method according to the present invention is primarily used in processing low-sulfur and high-aromatics light distillate, middle distillate, atmospheric gas oil, and vacuum gas oil. The method according to the present invention is advantageous in that the catalyst for aromatics saturated hydrogenation exhibits good hydrofining performance, superior aromatics saturation performance, high liquid yield of products, as well as excellent desulfurization and sulfur-resistance, and the catalyst has remarkable effects in use and a great prospect of application.
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公开(公告)号：US11298693B2
公开(公告)日：2022-04-12
申请号：US16446454
申请日：2019-06-19
发明人： Buwei Yu , Tao Jiang , Sihan Wang , Hongling Chu , Yan Jiang , Hongliang Huo , Xianming Xu , Libo Wang , Huaiqi Shao , Yali Wang , Yuanyuan Cao , Tong Liu , Kecun Ma , Fuling Huang , Xiuhui Wang , Enhao Sun , Yulong Wang
摘要： The present disclosure provides a method and a catalyst for selective oligomerization of ethylene. The raw material for the catalyst consists of a dehydropyridine annulene-type ligand, a transition metal compound, and an organometallic compound in a molar ratio of 1:0.5-100:0.1-5000. The present disclosure also provides a method for selective oligomerization of ethylene accomplished by using the above-mentioned catalyst. The catalyst for selective oligomerization of ethylene has high catalytic activity, high selectivity for the target products 1-hexene and 1-octene, and low selectivity for 1-butene and 1-C10+.
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公开(公告)号：US20230374169A1
公开(公告)日：2023-11-23
申请号：US18248198
申请日：2022-01-07
发明人： Yuanyuan Cao , Tong Liu , Hongling Chu , Libo Wang , Yulong Wang , Xianming Xu , Xiuhui Wang , Han Gao , Wei Sun , Hongpeng Li
IPC分类号： C08F4/14 , C08F4/32 , C08F110/14
CPC分类号： C08F4/14 , C08F4/32 , C08F110/14 , C08F2410/04
摘要： The present disclosure discloses a catalyst composition for polymerization of an α-olefin and preparation and use thereof. The catalyst composition comprises boron trifluoride and at least one protic cocatalyst; the protic cocatalyst has a structural formula of X—(CH2)n—OH, where n is an integer selected from 1 to 10; X is selected from nitro, halogen, cyano, sulfonic acid group, aldehyde group, acyl, carboxyl and amino. The catalyst can be used in production of a poly(α-olefin) synthetic base oil, and is particularly suitable for a low viscosity poly(α-olefin) synthetic base oil with high selectivity of the target product.
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公开(公告)号：US11352572B2
公开(公告)日：2022-06-07
申请号：US16663128
申请日：2019-10-24
发明人： Hongling Chu , Sihan Wang , Kecun Ma , Xianming Xu , Libo Wang , Guizhi Wang , Yan Jiang , Legang Feng , Yulong Wang , Enhao Sun , Hongliang Huo , Tong Liu , Yali Wang , Xiuhui Wang , Han Gao , Yuanyuan Cao , Fengrong Wang , Weihong Guan , Ruhai Lin , Xuemei Han , Yunguang Han , Fuling Huang , Buwei Yu
IPC分类号： C10G50/02
摘要： The present invention provides a low viscosity poly-α-olefin lubricating oil and a synthesis method thereof. The method comprises: (1) the α-olefin raw material is subjected to dehydration treatment so that the water content in the raw material is ≤10 ppm; (2) a reaction of the dehydration treated α-olefin raw material is carried out in the presence of a complex catalyst and gaseous BF3 to obtain a reaction product, wherein the pressure of the gaseous BF3 is 0.01 to 1 MPa; (3) the reaction product obtained in step (2) is sequentially subjected to flash distillation, gas stripping, centrifugation, and washing treatment to obtain an intermediate product; (4) the intermediate product obtained in step (3) is subjected to distillation under reduced pressure to separate the unreacted α-olefin raw material and α-olefin dimers, and the remaining heavy fractions are subjected to hydrogenation saturation treatment followed by fractionation and cutting-off.
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