膜科学与技术

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Application of membrane gas absorption and ammonia desulphurization combination technique in the treatment of coal chemical waste gas

Authors： LIU Zheng, GUAN Yipeng, CAO Zhen, LI Xuemei, CHEN Ying, WANG Wei, ZHANG Enwei, ZHOU Mingyuan, PENG Juan

Units： The Institute of Seawater Desalination and Multipurpose Utilization, SOA(Tianjin), Tianjin 300192, China; 2. Hofung(Tianjin) Chemical Engineering Co., Ltd., Tianjin300384, China

KeyWords： membrane gas absorption; Ammonia desulfurization; membrane absorption tower; coal chemical waste gas treatment; claus tail gas

ClassificationCode：TQ028.8；X701.3

year,volume(issue):pagination： 2018,38(2):106-110

Abstract：

In this study, we focus on the combination technique of membrane gas absorption (MGA) and ammonia desulfurization which were applied in the coal chemical waste gas treatment. A self-designed membrane absorption tower was employed in the experiment. Desulfurization efficiency, ammonia escape amount, the composition and purity of the absorption liquid were investigated in this process. 85~100m3/h feed gas was treated and the inflow SO2 concentration was 1500~3500mg/m3. The experiment results showed that the desulfurization efficiency was far below the national standard of SO2 emission and the ammonia escape amount was below 10mg/m3. Meanwhile, the ammonium sulfate solution has high grade purity which indicates the by-product a good potential economic value. The results of this study implied that the combination technique could be an upgrade or alternative of the traditional ammonia desulfurization process.

Funds：

海洋公益性科研专项项目(201305004)

AuthorIntro：

第一作者简介：刘铮（1982-），女，山东济南人，博士，工程师，研究方向为膜技术与应用；E-mail:liuzhengsh@foxmail.com 通讯作者，E-mail:chy786@163.com

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