文献类型：期刊文献

中文题名：1.8×10^(6) t/a径向甲醇反应器扩能改造的模拟计算

英文题名：Simulation Calculation of 1.8×10^(6)t/a Methanol Radial Reactor in the Capacity Expansion and Revamping

作者：赵雅琦[1];马宏方[1];张海涛[1];李涛[1]

机构：[1]华东理工大学大型工业反应器工程教育部工程研究中心,上海200237

年份：2022

卷号：48

期号：5

起止页码：576

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：Scopus;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

语种：中文

中文关键词：甲醇;扩能改造;径向反应器;一维拟均相;中心管

外文关键词：methanol;capacity expansion and revamping;radical reactor;one-dimensional quasi-homogeneous phase;central tube

摘要：基于某能源公司的百万吨甲醇生产项目的扩能改造,建立模型并分析计算。针对甲醇径向反应器建立了绝热换热多层交叉一维拟均相数学模型,代入Aspen Plus软件中,实现双径向反应器串并联耦合工艺的模拟。结果表明,增加中心管开孔面积可有效减少较大流量下的穿孔压降;降低进气温度对降低反应器内部热点温度有效,但会增加循环气流量;改变1#反应器和2#反应器的新鲜气配比实际上是改变了反应器连接方式,减小2#反应器入塔气的氢碳体积比能调动装置生产能力。对改造后的工艺进一步优化,得到了最优生产条件,即1#反应器新鲜气体积分数0.800,入塔气温度235.0℃,此时产能达到了原工艺的130%。
For the capacity expansion and revamping of a 1.8×10^(6) t/a Davy methanol production project of an energy company,a multilayer cross one-dimensional,quasi-homogeneous mathematical model was established for the adiabatic heat transfer of methanol radial reactor.The model was used in Aspen Plus to simulate the series-parallel coupling process of the dual radial reactor.We found that an increase in the area of the central pipe hole effectively reduced the pressure drop of the perforation at a large flow rate,and a decrease in the inlet temperature reduced the hot spot temperature but increased the circulating gas flow rate.Variation of the feed gas ratio substantially changed the connection mode of the reactor,and increased the methanol production of the 2#reactor.The optimum production conditions were obtained when the fresh gas ratio was 0.800 and the entry temperature was 235.0℃,leading to a production capacity enhancement of 130%with respect to the unoptimized process.