文献类型：期刊文献

英文题名：Cold model testing of in-situ catalyst activation by swirling self-rotation in ebullated bed reactor for biomass pyrolysis oils hydrogenation

作者：Li, Jian-ping[1];Wang, Yao[1];Chang, Yu-long[1];Huang, Yuan[1];Jiang, Xia[2];Wang, Hua-lin[1];Li, Li-quan[3];Chen, Chong-gang[3];Zhao, Ying[3];Yuan, Yuan-ping[4]

机构：[1]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China;[2]Sichuan Univ, Natl Engn Res Ctr Flue Gas Desulfurizat, Chengdu 610065, Peoples R China;[3]SINOPEC, Luoyang Petrochem Engn Corp LPEC, Luoyang 471003, Peoples R China;[4]Henan Baiyoufu Biol Energy Co Ltd, Zhengzhou 450000, Peoples R China

年份：2021

卷号：406

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20203709179635);WOS:【SCI-EXPANDED(收录号:WOS:000600991700004)】；

基金：This research was supported by the National Key Research and Development Program of China (2019YFC1906700).

语种：英文

外文关键词：Catalyst activation; Self-rotation; Ebullated bed reactor; Biomass pyrolysis oils; Hydrocyclone

摘要：In the process of biomass pyrolysis oils hydrogenation in the ebullated bed, the catalyst faces several serious issues (e.g., short operation time, frequent addition, massive waste) due to coking and channel blocking. Based on the phenomenon of the self-rotation of particles in the rotation shear flow, an axial-flow hydrocyclone is developed to activate the catalyst. In this study, the self-rotation of particles was presented with the help of microfluidic technology and high-speed photogrammetry, and the effect of self-rotation on the deoiling efficiency of the catalysts was investigated using a catalyst activation cold model experiment. The results show that when the inlet flow rate Q and the vortex finder length h(c) increase, the self-rotation speed of the particles also increases. When the particles rotate, the periodic coupling centrifugal force causes interfacial turbulence between the oil attachments and the fluid, which promotes the mass transfer. When Q and h(c) were 0.22 m(3)/h and 335 mm, the self-rotation speed reaches the maximum, which is 887.4 rad/min, the content of guaiacol (coking precursor) decreases from 55.0% to 11.4%, and the content of n-Hexadecane decreases from 38.8% to 16.1%. This innovative technic will prolong the lifetime of catalysts used in the ebullated bed reactor and make biomass pyrolysis oils hydrogenation more competitive.