Applications of high-gravity technologies in gas purifications: A review

作     者：Jing Guo Weizhou Jiao Guisheng Qi Zhiguo Yuan Youzhi Liu 

作者机构：Shanxi Province Key Laboratory of Higee-Oriented Chemical EngineeringSchool of Chemical Engineering and TechnologyNorth University of ChinaTaiyuan 030051China National Demonstration Center for Experimental Comprehensive Chemical Engineering EducationNorth University of ChinaChina 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2019年第27卷第6期

页      面：1361-1373页

核心收录：

学科分类：0710[理学-生物学] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China(U1610106) Shanxi Excellent Talent Science and Technology Innovation Project(201705D211011) Specialized Research Fund for Sanjin Scholars Program of Shanxi Province(201707) North University of China Fund for Distinguished Young Scholars(201701) 

主　　题：High gravity technology Rotating packed bed(RPB) Gas purification Desulfurization Pollution 

摘      要：The traditional gas purification techniques such as wet gas desulfurization, with their advantages of large-scale implementation and maturity, have still been widely used. However, the main drawback of these techniques is the low transfer efficiency, which normally needs towers as tall as tens of meters to remove the pollutants. Therefore, new technologies which could enhance the mass transfer efficiency and are less energy-intensive are highly desirable. As a process intensification technology, high-gravity technology, which is carried out in a rotating packed bed(RPB), has recently demonstrated great potential for industrial applications due to its high mass transfer efficiency, energy-saving, and smaller volume. This consequently provides higher efficiency in toxic gas removal, and can significantly reduce the investment and operation costs. In this review, the mechanism,characteristics, recent developments, and the industry applications of high-gravity technologies in gas purifications, such as hydrogen sulfide, nitrogen oxide, carbon dioxide, sulfur dioxide, volatile organic compounds and nanoparticle removal are discussed, most of the demonstration projects and practical application examples in gas purification come from China. The perspective and prospective of this technology in gas purification and other fields are also briefly discussed.