文丘里洗涤器内硫化氢气体碱液吸收过程的CFD模拟

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杨帅¹，赵祥迪¹，徐银谋^1,2，王正¹，袁纪武¹，孙万付^1*

1. 中国石化青岛安全工程研究院化学品安全控制国家重点实验室，山东青岛 266071 2. 青岛科技大学机电工程学院，山东青岛 266042

收稿日期:2018-03-29修回日期:2018-07-24出版日期:2018-11-22发布日期:2018-11-19
通讯作者:杨帅

基金资助:国家科技支撑计划课题

CFD simulation of hydrogen sulfide gas absorption process in Venturi scrubber

Shuai YANG¹, Xiangdi ZHAO¹, Yinmou XU^1,2, Zheng WANG¹, Jiwu YUAN¹, Wanfu SUN^1*

1. SINOPEC Research Institute of Safety Engineering, State Key Laboratory of Safety and Control for Chemicals, Qingdao, Shandong 266071, China 2. College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266061, China

Received:2018-03-29Revised:2018-07-24Online:2018-11-22Published:2018-11-19

摘要/Abstract

摘要： 采用双流体模型、RNG k??湍流模型和组分输运模型对不同工况下自吸式文丘里洗涤器内NaOH溶液洗消H2S气体的引射能力、气液混合度和洗涤效率进行数值模拟，对引射量的模拟结果进行了实验验证. 结果表明，在气液流动过程中，随气速增大，自吸式文丘里洗涤器引射量增大，洗涤器扩大段内液相径向分布均匀性减弱，液相倾向于贴壁流动. 距喉部越远，气液速度越低，液相径向分散越均匀. 在H2S碱液吸收过程中，气液相间化学反应主要集中于喉部至喉部上方扩大段长度1/5区域内，反应速率随距喉部距离增加先升高后降低. 最大反应速率在喉部上方扩大段长度5%处. 随气速增大，扩大段内气液相间化学反应速率提高，洗涤器出口处H2S浓度降低，洗涤效率增大，洗涤时间缩短.

引用本文

杨帅赵祥迪徐银谋王正袁纪武孙万付. 文丘里洗涤器内硫化氢气体碱液吸收过程的CFD模拟[J]. 过程工程学报, 2018, 18(S1): 103-110.
Shuai YANG Xiangdi ZHAO Yinmou XU Zheng WANG Jiwu YUAN Wanfu SUN. CFD simulation of hydrogen sulfide gas absorption process in Venturi scrubber[J]. Chin. J. Process Eng., 2018, 18(S1): 103-110.

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