低温甲醇洗H_2S吸收塔和CO_2吸收塔流程模拟  

Rectisol H_2S Absorption Tower and CO_2 Absorption Tower Process Simulation

作　　者：刘华群 李春刚 张东亚 陈若方 唐祁匀 Liu Huaqun;Li Chungang;Zhang Dongya;Cheng Ruofang;Tang Qiyun(Shanghai Shyndec (Haimen) Pharmaceutical Co.,Ltd.,Haimen 226133,China)

机构地区：[1]上海现代制药海门有限公司,江苏海门226133

出　　处：《山东化工》2019年第8期161-162,165,共3页Shandong Chemical Industry

摘　　要：低温甲醇洗工艺是酸性原料气净化的重要工艺之一,其中H_2S吸收塔和CO_2吸收塔的操作温度范围为-51.5～-18.0℃,操作压力范围为2.8～3.4 MPa,需要一个精确的热力学方程来描述物系的气液平衡状态。本文发现PSRK方程能较好的描述该过程,并通过设置撕裂物流,完成了四塔串联的收敛计算,对现有工艺的生产优化、新工艺塔内件的设计和换热器的设计,都具有十分重要的指导意义。The rectisol process is one of the important processes for the purification of acidic feedstock gas.The operating temperature range of H 2S absorption tower and CO2 absorption tower is -51.5℃ to -18.0℃ and 2.8 to 3.4 MPa,and an accurate thermodynamic equation that describes this process is strictly required.This paper finds that the PSRK equation can better describe the process,and completes the convergence calculation of the four-column series by setting the tear streams.This paper has important effect on the production optimization of existing processes,the design of tower internals and heat exchangers of new process.

关 键 词：低温甲醇洗 PSRK方程 撕裂流股 

分 类 号：TQ546.5[化学工程—煤化学工程]