异丁烷脱氢分离工艺的模拟与分析  

Simulation and analysis of isobutane dehydrogenation separation process

作　　者：吴萍 Wu Ping(Shanghai Hoto Engineering Inc.,Shanghai 201203)

机构地区：[1]上海河图工程股份有限公司,上海市201203

出　　处：《炼油技术与工程》2020年第11期5-8,共4页Petroleum Refinery Engineering

摘　　要：对100 kt/a异丁烷脱氢装置的分离工艺流程,采用浅冷油吸收法,借助于化工流程模拟软件进行模拟。通过比较不同操作条件下各部分的模拟结果和能耗,确定各设备适宜的操作条件,并考察在已确定的操作条件下各部分的能耗分布。压缩机出口压力与吸收稳定系统相匹配,而压力高低直接影响整个装置能耗,也影响压缩机的段数。模拟结果表明,异丁烷脱氢分离工艺适宜操作条件为压缩机出口压力1.9~2.4 MPa、吸收塔操作压力1.7~2.2 MPa。装置主要耗能是在吸收稳定部分,其能耗占分离工艺总能耗的61.7%,离心压缩机按4段设计为佳。The separation process of a 100,000 TPY isobutane dehydrogenation unit was simulated by software.The cold oil absorption technology was adopted.By comparing the simulation results and energy consumption of each part under different operating conditions,the appropriate operating conditions of each equipment were determined,and the energy consumption distribution of each part under the determined operating conditions was investigated.The compressor outlet pressure was matched with the absorption-stabilization system,while the pressure value directly affected the energy consumption of the whole unit and the stages of the compressor.The main operating conditions of the separation process were that the compressor outlet pressure was 1.9~2.4 MPa and the absorber operating pressure was 1.7~2.2 MPa.The main energy consumption unit was absorption-stabilization section,which accounted for 61.7%of the total energy consumption.It was recommended that the centrifugal compressor should be designed according to 4 stages.

关 键 词：异丁烷脱氢 分离工艺 浅冷油吸收法 压缩机段数 操作压力 综合能耗 

分 类 号：TQ221.14[化学工程—有机化工]