醇胺法解吸塔优化设计及解吸特性分析  

Alcohol amine method based optimal design of desorption tower and regeneration characteristics analysis

作　　者：王家凤 田群宏 赵东亚 陆诗建[1,2] WANG Jiafeng;TIAN Qunhong;ZHAO Dongya;LU Shijian(College of Chemical Engineering,China University of Petroleum(Hua Dong),Qingdao 266580,Shandong,China;Sinopec Energy Saving and Environmental Protection Engineering Technology Co.,Ltd.,Dongying257026,Shandong,China)

机构地区：[1]中国石油大学(华东)化学工程学院,山东省青岛市266580 [2]中石化节能环保工程科技有限公司,山东省东营市257026

出　　处：《计算机与应用化学》2018年第11期940-946,共7页Computers and Applied Chemistry

基　　金：国家自然科学基金(61473312; 61273188);青岛市民生科技计划项目(17-3-3-75-nsh);国家重大专项(2016ZX05012002-004);中国石油大学(华东)自主创新科研计划项目(18CX05026A)

摘　　要：现阶段醇胺吸收法捕集CO_2技术的工程应用范围最广,解吸塔能耗是醇胺法耗能主要来源。本文以胜利电厂100吨/天CO_2捕集工程为研究对象,基于Aspen Plus建立了解吸塔工艺模型,分析了各层塔板参数的变化规律;运用模块分析工具,进行了灵敏度分析,优化得出最优理论板数;最后基于解吸塔理论板数的结构优化设计,分析了吸收液流量、再沸器热负荷及贫液负载率对解吸特性的影响。At this stage, the amine-based CO2 capture technology has the widest range of engineering applications. Desorption tower energy consumption is the main source of energy consumption of alcohol amine method. In this paper, Shengli Power Plant 100 tons/day CO2 capture project is selected as the research object.Based on Aspen Plus, a desorption tower process model is established. The changing rules of tray parameters are analysed. Using the module analysis tools, and the sensitivity analysis is carried out to optimize the number of theoretical plates. Finally, based on the structural optimization design of the theoretical plate number of desorption tower, several key factors are analysed including the influence of absorption liquid flow rate, reboiler thermal load and lean liquid load rate on desorption characteristics.

关 键 词：解吸塔 塔板参数 最优理论板数 解吸特性 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]