文献类型：期刊文献

英文题名：Cyclone rotational drying of lignite based on particle high-speed self-rotation: Lower carrier gas temperature and shorter residence time

作者：Fu, Pengbo[1,2];Yu, Hao[2];Li, Qiqi[2];Cheng, Tingting[2];Zhang, Fangzheng[2];Yang, Tao[3];Huang, Yuan[4];Li, Jianping[2];Fang, Xiangchen[3];Xiu, Guangli[1];Wang, Hualin[1,2]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China;[3]China Petr & Chem Corp SINOPEC, Dalian Fushun Res Inst Petr & Petrochem, Dalian 116045, Peoples R China;[4]Shanghai Univ, Inst Environm Pollut & Heath, Shanghai 200444, Peoples R China

年份：2022

卷号：244

外文期刊名：ENERGY

收录：;EI(收录号：20220311459719);WOS:【SCI-EXPANDED(收录号:WOS:000805151300001)】；

基金：Acknowledgments This work was supported by the sponsorship of the National Natural Science Foundation of China (52000073) , National Key Research and Development Program of China (2019YFA0705800) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Lignite drying; Particle self-rotation; Cyclone rotational drying; Energy-saving; Emission reduction

摘要：The lignite drying is the keys to its efficient and clean utilization, but the high energy consumption restricts the sustainable development of drying technology. In this study, based on the coupling centrifugal effect of high-speed self-rotation and revolution of particles in cyclone, low-energy consumption and high-efficiency lignite cyclone rotational drying was realized at a low carrier gas temperature (lower than 100 degrees C) and in a short residence time (less than 10 s). The influence of operating parameters and structure parameters on drying efficiency were studied, when the carrier gas temperature was 80 degrees C, the moisture content of lignite can be reduced from 45.1% to 15.2% after single-stage cyclone drying in a 75 mm diameter cyclone. Increasing the number of series stages and the diameter of the cyclone can further improve the drying efficiency. Compared with the evaporative drying, this new method can increase the drying rate and reduce the energy consumption. (c) 2022 Elsevier Ltd. All rights reserved.