公开(公告)号：US20240002243A1

公开(公告)日：2024-01-04

申请号：US18039469

申请日：2021-10-27

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Tong LIU ,  Yuanyuan CAO ,  Yulong WANG ,  Libo WANG ,  Xianming XU ,  Hongping LI ,  Enhao SUN ,  Xiuhui WANG ,  Wei SUN ,  Han GAO ,  Hongling CHU ,  Yongjun ZHANG ,  Yonggang JI ,  Kecun MA ,  Yan JIANG ,  Qian CHEN ,  Hongliang HUO ,  Qi YU

IPC: C01B35/06 ,  B01D3/06 ,  B01D53/22 ,  B01D71/34 ,  B01D71/36

CPC classification number: C01B35/061 ,  B01D3/06 ,  B01D53/228 ,  B01D71/34 ,  B01D71/36 ,  C01B2210/0012 ,  B01D2311/10 ,  B01D2311/14

Abstract: The present invention provides a method for separation and recovery of boron trifluoride and complexes thereof in an olefin polymerization reaction. The method for separation and recovery of boron trifluoride and complexes thereof in an olefin polymerization reaction, comprising: 1) subjecting a mixture obtained after an olefin polymerization reaction to flash distillation separation to separate part of gaseous boron trifluoride; 2) subjecting the liquid phase obtained from the flash distillation separation to membrane separation to obtain complexes of boron trifluoride and a crude product of the olefin polymerization reaction; and 3) subjecting the crude product of the olefin polymerization reaction obtained in step 2) to gas stripping separation to separate the remaining gaseous boron trifluoride, so as to obtain a pure product of the olefin polymerization reaction The present invention designs a matching process based on the polymorphic characteristics of boron trifluoride and complexes thereof to achieve efficient separation of boron trifluoride and complexes thereof from polymerization intermediates.

公开(公告)号：US20190388882A1

公开(公告)日：2019-12-26

申请号：US16446454

申请日：2019-06-19

Applicant: PETROCHINA COMPANY LIMITED

Inventor： 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

IPC: B01J31/18 ,  B01J31/12 ,  B01J31/34 ,  B01J31/36 ,  B01J31/38 ,  B01J31/14 ,  C07C2/32

Abstract: 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+.

公开(公告)号：US20160167017A1

公开(公告)日：2016-06-16

申请号：US14964204

申请日：2015-12-09

Applicant: PetroChina Company Limited

Inventor： 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: B01J23/44 ,  B01J35/10 ,  B01J37/08 ,  C10G45/52 ,  B01J37/02

CPC classification number: B01J23/44 ,  B01J23/40 ,  B01J35/0073 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J37/0009 ,  B01J37/0203 ,  B01J37/0205 ,  B01J37/0213 ,  B01J37/08 ,  B01J37/28 ,  B01J2523/00 ,  C10G45/52 ,  B01J2523/31 ,  B01J2523/41 ,  B01J2523/48 ,  B01J2523/824 ,  B01J2523/828 ,  B01J2523/47

Abstract: 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.

Abstract translation: 本发明涉及一种制备用于芳烃饱和氢化的耐硫催化剂的方法，包括以下步骤：由贵金属和去离子水或酸溶液制备贵金属浸渍溶液; 用浸渍溶液从高浓度到低浓度依次浸渍载体; 均化，干燥和煅烧，得到用于芳烃饱和氢化的耐硫催化剂。 通过本发明方法制备的芳烃饱和氢化催化剂主要用于加工低硫和高芳烃轻馏分，中间馏分，常压瓦斯油和减压瓦斯油。 根据本发明的方法的优点在于芳烃饱和氢化催化剂具有良好的加氢精制性能，优异的芳烃饱和性能，高液体产物产率，以及优异的脱硫和耐硫性，催化剂具有显着的效果 使用和巨大的应用前景。