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

doi:10.1016/j.cjche.2019.01.011

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (6): 1361-1373.DOI: 10.1016/j.cjche.2019.01.011

• Special Issue: Separation Process Intensification of Chemical Engineering • Previous Articles Next Articles

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

Jing Guo, Weizhou Jiao, Guisheng Qi, Zhiguo Yuan, Youzhi Liu

Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China;National Demonstration Center for Experimental Comprehensive Chemical Engineering Education, North University of China, China

Received:2018-09-29 Revised:2019-01-08 Online:2019-08-19 Published:2019-06-28
Contact: Weizhou Jiao, Youzhi Liu
Supported by:
Supported by the National Natural Science Foundation of China (U1610106) and Shanxi Excellent Talent Science and Technology Innovation Project (201705D211011), Specialized Research Fund for Sanjin Scholars Program of Shanxi Province (201707) and North University of China Fund for Distinguished Young Scholars (201701).

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

Jing Guo, Weizhou Jiao, Guisheng Qi, Zhiguo Yuan, Youzhi Liu

Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China;National Demonstration Center for Experimental Comprehensive Chemical Engineering Education, North University of China, China

通讯作者: Weizhou Jiao, Youzhi Liu
基金资助:
Supported by the National Natural Science Foundation of China (U1610106) and Shanxi Excellent Talent Science and Technology Innovation Project (201705D211011), Specialized Research Fund for Sanjin Scholars Program of Shanxi Province (201707) and North University of China Fund for Distinguished Young Scholars (201701).

Abstract

Abstract: 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.

Key words: 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.

关键词: High gravity technology, Rotating packed bed (RPB), Gas purification, Desulfurization, Pollution

Jing Guo, Weizhou Jiao, Guisheng Qi, Zhiguo Yuan, Youzhi Liu. Applications of high-gravity technologies in gas purifications: A review[J]. Chinese Journal of Chemical Engineering, 2019, 27(6): 1361-1373.

Jing Guo, Weizhou Jiao, Guisheng Qi, Zhiguo Yuan, Youzhi Liu. Applications of high-gravity technologies in gas purifications: A review[J]. 中国化学工程学报, 2019, 27(6): 1361-1373.

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

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

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