文献类型：期刊文献

英文题名：High-speed particle self-rotation in different pre-self-rotation cyclones and application in enhancement of oil recovery from spent catalysts

作者：Cheng, Tingting[1];Li, Qiqi[1];Wang, Hualin[1];Fang, Xiangchen[2];Li, Liquan[3];Jiang, Lai[4];Li, Jianping[1];Huang, Yuan[5];Yang, Tao[2];Fu, Pengbo[1]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai 200237, Peoples R China;[2]China Petr & Chem Corp SINOPEC, Dalian Fushun Res Inst Petr & Petrochem, Dalian 116045, Peoples R China;[3]SINOPEC, Luoyang Petrochem Engn Corp, Luoyang 471003, Henan, Peoples R China;[4]SINOPEC, Jinling Petrochem Corp, Nanjing 210033, Jiangsu, Peoples R China;[5]Shanghai Univ, Inst Environm Pollut & Hlth, Shanghai 200444, Peoples R China

年份：2022

卷号：296

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20222412225658);WOS:【SCI-EXPANDED(收录号:WOS:000814389200001)】；

基金：Acknowledgements This work was supported by the sponsorship of the National Key Research and Development Program of China (2019YFA0705800) and the National Natural Science Foundation of China (52000073 and 52030001) .

语种：英文

外文关键词：Oil recovery; Pre-self-rotation cyclone; High-speed self-rotation; Spent catalysts; Cyclone deoiling

摘要：As a typical hazardous waste in the petrochemical industry, the spent catalysts contain a large amount of oil, which will lead to waste of resources and serious environmental pollution if not effectively recycled. In this study, four kinds of inlet particle pre-self-rotation cyclones were designed for efficient separation and recovery of oil trapped in the pores of the spent porous catalyst through high-speed particle self-rotation in cyclones. The effects of pre-self-rotation on particle revolution and high-speed self-rotation were studied using a high-speed motion analyzer (HSMA). When the inlet flow rate was 40 m(3)/h, the particle self-rotation speed at the axial position of z = 200 mm in common cyclone (CM-C) and parallel positive rotation cyclone (PPR-C) was 2572 and 6658 rad/s, respectively. At the normal temperature, the oil content after oil recovery by CM-C was reduced from 31.18% to 8.96%, while in PPR-C it can be reduced to 5.29%. This study provides a new approach for regulating particle self-rotation in cyclones and enhancing the oil recovery from the spent porous catalyst through highspeed particle self-rotation.