Petrochina Company Limited

Hongling Chu

Libo Wang

Tong Liu

Xianming Xu

Yulong Wang

Xiuhui Wang

Yuanyuan Cao

Yali Wang

Yan Jiang

Han Gao

Sihan Wang

Fuling Huang

Buwei Yu

Enhao Sun

Hongliang Huo

Kecun Ma

Wei Sun

Ning Zhang

Hongpeng Li

Ruifeng Li

Guizhi Wang

Wencheng Zhang

Famin Sun

Jintao Guo

Xianjun Wu

Quanguo Zhang

Guojia Zhang

Xuemei Han

Chunmei Yu

Shanbin Gao

Bin Xie

Xinmiao Wang

Weihong Guan

Lili Jiang

Huaiqi Shao

Yunguang Han

Tan Zhao

Wenyong Liu

Rui Li

Cheng Tang

Fengrong Wang

Xiaodong Yang

Yanfeng Liu

Sheng Hu

Xiaofeng Wang

Ruhai Lin

Yuanyuan Ji

Legang Feng

Ran Sun

Yuxiao Feng

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—(CH)—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.

Catalyst composition for polymerization of α-olefin and preparation and use thereof

The present invention provides a low viscosity poly-&#x3b1;-olefin lubricating oil and a synthesis method thereof. The method comprises: (1) the &#x3b1;-olefin raw material is subjected to dehydration treatment so that the water content in the raw material is &#x2264;10 ppm; (2) a reaction of the dehydration treated &#x3b1;-olefin raw material is carried out in the presence of a complex catalyst and gaseous BFto obtain a reaction product, wherein the pressure of the gaseous BFis 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 &#x3b1;-olefin raw material and &#x3b1;-olefin dimers, and the remaining heavy fractions are subjected to hydrogenation saturation treatment followed by fractionation and cutting-off.

Low viscosity poly-a-olefin lubricating oil and synthesis method thereof

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-C.

Method and catalyst for selective oligomerization of ethylene

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.

Sulfur-resistant catalyst for aromatics saturated hydrogenation and preparation method thereof

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Beijing, China

Hongling Chu