Design of Reaction Region of Reactive Dividing Wall Column Based on Cross-Wall Heat Transfer
Design of Reaction Region of Reactive Dividing Wall Column Based on Cross-Wall Heat Transfer
复制标题
DOI：
10.1021/acs.iecr.2c04358
复制
发表时间：
2023-03
期刊：
影响因子：
--
通讯作者：
Yuqi Hu;Hui-chao Sun;Chunli Li;Honghai Wang
中科院分区：
文献类型：
--
作者：
Yuqi Hu;Hui-chao Sun;Chunli Li;Honghai Wang
反应性分隔壁塔（RDWC）是将反应性蒸馏和分隔壁塔耦合的塔结构。由于其在能耗方面的显著优势，成为研究热点。大多数RDWC忽略了跨壁传热的可能性。对于RDWC，反应热的影响也被忽略。本文以乙酸甲酯与正丁醇的反应为研究对象，利用白杨实验装置研究了反应热和反应区长度对跨壁传热的影响。结果表明，与绝热横壁传热的RDWC相比，横壁传热的RDWC可节能3.2%。跨壁传热可使反应物转化率达到99.4%。从节能最大化的角度出发，设置了双反应区。研究结果表明，在双反应区采用跨壁传热的RDWC比采用跨壁保温的RDWC节能4.2%。
The reactive dividing wall column (RDWC) is a column structure that couples a reactive distillation and dividing wall column. It has become a research hotspot because of its remarkable advantages in energy consumption. Most RDWCs ignore the possibility of cross-wall heat transfer. For the RDWC, the effect of reaction heat is also ignored. In this work, the reaction of methyl acetate with butanol was studied, and Aspen is used to study the effect of the reaction heat and reaction region length on the cross-wall heat transfer. The results show that compared with the RDWC with an adiabatic cross-wall, the RDWC with cross-wall heat transfer can save 3.2% energy. Cross-wall heat transfer could achieve reactants conversion of 99.4%. From the perspective of energy saving maximization, the double reaction region is set. The research results show that the RDWC with cross-wall heat transfer in the double reaction region can save 4.2% energy compared with the cross-wall insulation.