热泵技术在二氯甲烷和甲醇分离中的应用研究  

Research on application of heat pump technology in separation of dichloromethane and methanol

作　　者：杨祉聪 龚凌诸 王多 王大为 郑志功 史荣会 YANG Zhi-cong;GONG Ling-zhu;WANG Duo;WANG Da-wei;ZHENG Zhi-gong;SHI Rong-hui(School of Ecological Environment and Urban Construction,Fujian University of Technology,Fuzhou 350118,China;Fuzhou Green Chemical and Cleaner Production Industry Technology Innovation Center,Fuzhou 350118,China;Fujian Funeng Long'an Thermal Power Co.,Ltd.,Ningde 355208,China)

机构地区：[1]福建理工大学生态环境与城市建设学院,福建福州350118 [2]福州市绿色化工与清洁生产行业技术中心,福建福州350118 [3]福建省福能龙安热电有限公司,福建宁德355208

出　　处：《现代化工》2024年第8期209-213,共5页Modern Chemical Industry

基　　金：福建省自然科学基金项目(2023J01931);福建省区域发展基金项目(2022Y3008)。

摘　　要：针对传统变压精馏技术(PSD)在分离二氯甲烷(DCM)-甲醇(MeOH)混合物时的高能耗问题,提出了一种基于热泵辅助的变压精馏(PPSD)优化工艺,并深入探讨了热泵配置的技术可行性和经济效益。通过组合曲线和经济性分析,对比了热泵方案的节能和经济效果。结果显示,与传统PSD工艺相比,热泵辅助的PPSD工艺能够降低29.96%的能耗,减少40.45%的年度总成本(TAC),同时能降低44.23%的CO_(2)排放量,充分展现了热泵辅助变压精馏工艺的优越性。A heat pump-assisted pressure swing distillation(PPSD)optimization process is proposed to address the high energy consumption issue in the traditional pressure swing distillation(PSD)technology in separating dichloromethane(DCM)-methanol(MeOH)mixtures,and the technological feasibility and economic benefits of the heat pump configuration are explored.The energy-saving and economic effects of the PPSD scheme are compared through combining curves and economic analysis.It is shown by the results that compared with traditional PSD process,PPSD process is able to reduce energy consumption by 29.96%,total annual cost(TAC)by 40.45%,as well as CO_(2) emission by 44.23%,demonstrating the superiority fully.

关 键 词：热泵 变压精馏 二元共沸混合物 分离 模拟 

分 类 号：TQ028.2[化学工程]