摘要
针对当前乙二醇再生与回收装置存在的效率低、能耗高的问题,研究了乙二醇再生与回收系统(MRU)的预处理工艺及脱水再生工艺,结合工艺模拟软件AspenPlus的计算结果,对比优选了预处理工艺及脱水再生工艺的关键参数,结果表明:脱烃工艺最佳闪蒸温度为55℃,最佳闪蒸压力为0.13MPa;脱二价盐工艺中用于除二价阳离子的化学药剂NaOH和Na2CO3质量分数分别为60%和40%;脱水再生工艺中再生塔最优参数依次为:进料温度75℃、塔压0.17MPa、理论板数20、回流比0.21。通过对MRU系统的工艺参数优选,为MRU国产化研究奠定了基础。
Aiming at the problems of low efficiency and high energy consumption of the current ethylene glycol regeneration and recovery equipment,by studying the pretreatment and dehydration regeneration processes of the glycol regeneration and recovery system(MRU),the key parameters of the pretreatment and dehydration regeneration processes have been compared and optimized in combination with the calculation results of Aspen Plus process simulation software.The results show that the optimal flash temperature of the dehydrocarbonation process is 55℃ and the optimal flash pressure is 0.13 MPa;the mass fractions of divalent cation removers in the debivalent salt process(i.e.,NaOH and Na2 CO3)are 60%and 40%,respectively;the optimal parameters of the regeneration tower in the dehydration regeneration process are successively:the feed temperature of 75℃,tower pressure of 0.17 MPa,theoretical plate number of 20 and reflux ratio 0.21.By optimizing the process parameters of the MRU system,it laid a foundation for the localization research of MRU.
作者
唐文献
赵磊
李华
陈晨
王文涛
何佳伟
TANG Wenxian;ZHAO Lei;LI Hua;CHEN Chen;WANG Wentao;HE Jiawei(College of Mechanical,Jiangsu University of Science and Technology,Zhenjiang,Jiangsu 212000,China;Chongqing Qianwei Technology Group Co.,Ltd,,Chongqing 401121,China)
出处
《中国海上油气》
CAS
CSCD
北大核心
2020年第2期142-149,共8页
China Offshore Oil and Gas
基金
船舶行业预研计划项目“深海可燃冰开采装备总体技术研究(编号:QW2018.121-09004)”部分研究成果。
关键词
乙二醇再生与回收系统
预处理工艺
脱水再生工艺
关键参数优选
glycol regeneration and recovery system
pretreatment process
dehydration regeneration process
key parameter optimization
