柴油加氢尾气中氢气的水合物法回收工业侧线试验  

Industrial side-stream trial of hydrogen recovery from diesel hydrogenation tail gas via hydrate method

作　　者：陈波 刘爱贤 孙强[1] 王逸伟 郭绪强 杨庆伟 龙有[3] 肖树萌[3] 马绍坤 CHEN Bo;LIU Aixian;SUN Qiang;WANG Yiwei;GUO Xuqiang;YANG Qingwei;LONG You;XIAO Shumeng;MA Shaokun(China University of Petroleum-Beijing,Beijing 102249,China;China University of Petroleum-Beijing at Karamay,Karamay 834000,Xinjiang,China;SINOPEC Maoming Company,Maoming 525000,Guangdong,China;Beijing Shidashitong Limited company,Beijing 101301,China)

机构地区：[1]中国石油大学(北京),北京102249 [2]中国石油大学(北京)克拉玛依校区,新疆克拉玛依834000 [3]中国石化茂名分公司,广东茂名525000 [4]北京石大世通科技发展有限公司,北京101301

出　　处：《化工进展》2022年第6期2924-2930,共7页Chemical Industry and Engineering Progress

基　　金：新疆维吾尔自治区创新环境建设专项自然科学计划青年科学项目(2020D01B64);国家自然科学基金青年基金(22008257);新疆维吾尔自治区高校科研计划自然科学项目(XJEDU2020Y044);中国石油大学(北京)克拉玛依校区科研启动项目(XQZX20190043)。

摘　　要：常规氢气回收方法的产品氢气压力偏低,需多级增压后才可被高压加氢装置利用,具有较高的氢气增压成本。水合物法回收加氢尾气具有压降损失小、产品氢气压力高的优点,可降低高压加氢装置的氢气增压成本。为降低高压加氢装置的用氢成本,本文开发了高压尾气的水合物法氢气回收技术。针对高压柴油加氢尾气,在茂名炼油厂建立了一套柴油加氢尾气中氢气水合物法回收的工业侧线试验装置,考察了不同条件下连续搅拌釜法回收柴油加氢尾气中氢气的分离效果。试验结果表明,水合物法可高效脱除CH_(4)和大部分的H_(2)S。连续进气工况下,处理脱硫后尾气时可将氢气体积分数从83.76%提高至91.65%,处理含硫尾气时可将H_(2)S体积分数从0.73%降至0.07%。The hydrogen products pressure of conventional hydrogen recovery methods is low and can only be used by the high-pressure hydrogenation units after multistage pressurization, which has high hydrogen pressurization cost. The hydrate method for recovery of hydrogenation tail gas has the advantages of slight pressure drop loss and high product hydrogen pressures, which can effectively reduce the hydrogen pressurization cost for high-pressure hydrogenation units. To reduce the utilized cost of hydrogen for high-pressure hydrogenation units, we developed the hydrate hydrogen recovery technology.We established a hydrate industrial side-stream trial unit in a Maoming refinery factory to recover hydrogen from a diesel hydrogenation unit tail gas. The separation effect of hydrogen recovered from diesel hydrogenation tail gas using the continuous stirred tank method under different conditions was investigated. The trial results show that most CH_(4)and almost 100% H_(2)S can be effectively removed by the hydrate method. In the continuous trials, the hydrogen volume fraction increases from 83.76% to 91.65%,and H_(2)S volume fraction from 0.73% to 0.07%.

关 键 词：水合物 加氢尾气回收 侧线试验 连续搅拌反应器 氢气回收 

分 类 号：TE3[石油与天然气工程—油气田开发工程] TE99