Petrochina Company Limited

Tsinghua University

Fengrong Wang

Xianming Xu

Guizhi Wang

Yali Wang

Libo Wang

Tong Liu

Yan Jiang

Han Gao

Zhixiang Zhang

Sihan Wang

Yulong Wang

Xiuhui Wang

Fuling Huang

Buwei Yu

Yong Jin

Hongling Chu

Xuemei Han

Jianzhong Li

Yuanyuan Cao

Yunguang Han

Kecun Ma

Fangwei Li

Huimin Yuan

Enhao Sun

Hongliang Huo

Weihong Guan

Zhongtao Zhang

Xuli Zhai

Shubao Wan

Fengbo Ma

Jing Wei

Jina Zhao

Lijun Liu

Dawei Zhang

Legang Feng

Ruhai Lin

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

A method for preparing catalyst coating on a metal base plate comprising: thermal-spraying a layer of &#x3b1;-aluminum oxide nano-particles on a metal base plate using a high temperature flame powder spray gun, at a temperature of 2500-3500&#xb0; C. and a pressure of 0.2-1.2 MPa; coating an aluminum sol, the weight concentration of the aluminum sol aqueous solution being 2-30%, at a pH of 0.5-4, the drying temperature being 50-150&#xb0; C., the drying time being 0.5-24 hours, the calcination temperature being 200-1200&#xb0; C., and the calcination time being 0.5-24 hours; immersing in an active component, the immersing temperature being 20-120&#xb0; C., the duration being 0.5-24 hours, the drying temperature being 50-150&#xb0; C., the drying time being 0.5-24 hours, the calcination temperature being 200-1200&#xb0; C., and the calcination time being 0.5-24 hours. The method is suitable for the preparation of various catalyst coatings with active components.

Method for preparing catalyst coating on metal base plate

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Dongcheng, China

Fengrong Wang