摘要
为了综合利用炼化柴油加氢精制工段所排放的酸性气体,采用了砜胺法提纯硫化氢气体,同时利用乙醇胺溶液吸收提纯酸性气体中的二氧化碳,然后与该工段气中的氢气反应制备甲醇;将得到的硫化氢和甲醇在温度为300~460℃、压力1 MPa的条件下进行气相合成,同时生产甲硫醇、甲硫醚两种产品,可根据市场需求通过调节甲醇和硫化氢的比例调节产两种产品的比例。运用Aspen Plus对全流程进行了流程稳态模拟,并采用萃取精馏技术以降低甲硫醇和甲醇分离能耗。
In order to comprehensively utilize the acid gas discharged from the refinery diesel hydrorefining section,the sulfone amine method was used to purify hydrogen sulfide gas,and the ethanolamine solution was used to absorb and purify the carbon dioxide in the acid gas and then react with the hydrogen to produce methanol.The obtained hydrogen sulfide and methanol were reacted in the gas phase at 300-460℃and 1 MPa to produce methyl mercaptan and dimethyl sulfide simultaneously.The ratio of the two products can be adjusted by adjusting the ratio of methanol and hydrogen sulfide according to the market demand.Aspen Plus was used to conduct the steady-state simulation of the entire process,and extractive distillation technology was used to reduce the energy consumption for the separation of methyl mercaptan and methanol.
作者
俞沛杰
钮舒静
盛雨冬
张佳强
陈艳波
李正辉
周琦
李颖
Yu Peijie;Niu Shujing;Sheng Yudong;Zhang Jiaqiang;Chen Yanbo;Li Zhenghui;Zhou Qi;Li Ying(School of Material and Chemical Engineering,Ningbo University of Technology,Ningbo 315211,China)
出处
《化学反应工程与工艺》
CAS
CSCD
北大核心
2018年第6期570-575,共6页
Chemical Reaction Engineering and Technology
关键词
含硫酸性气体
硫化氢
甲硫醇
甲硫醚
sulfur-containing acid gas
hydrogen sulfide
methyl mercaptan
dimethyl sulfide