文献类型：期刊文献

英文题名：Design and optimization of an acetic acid recovery system via extraction–distillation using an isopropyl acetate + isopropanol mixed solvent

作者：Fang, Peng[1]; Yu, Chao[2]; Zeng, Zuoxiang[1]; Xue, Weilan[1]

机构：[1] Institute of Chemical Engineering, East China University of Science and Technology, Shanghai, China; [2] Department of Petrochemical Technology, Sinopec Shanghai Engineering Co., Ltd, Shanghai, China

年份：2020

卷号：207

期号：12

起止页码：1625

外文期刊名：Chemical Engineering Communications

收录：EI(收录号：20194407594940)

语种：英文

外文关键词：Dehydration - Acetic acid - Solvents - Distillation - pH - Operating costs

摘要：Azeotropic distillation incorporating liquid–liquid extraction was used for the dehydration of dilute acetic acid (HAc) solution. A hybrid extraction–distillation process was designed and simulated using isopropyl acetate + isopropanol (IPA-01 + IPA-02) as a solvent (an extractant and an entrainer), and the same processes using pure isopropyl acetate (100IPA-01) and pure ethyl acetate were also simulated. An optimal composition of the solvent was determined to be the mixture of 82 wt% IPA-01 and 18 wt% IPA-02 (82IPA-01/18IPA-02). The result shows that the operating costs and capital costs of the process using IPA-01 + IPA-02 solvent are lower than that using 100IPA-01 solvent. The optimal design of the hybrid extraction–distillation process making use of 82IPA-01/18IPA-02 as a solvent brought a reduction of the total annual cost by about 35.36% and 47.89% compared to those of the 100IPA-01 and ethyl acetate solvents, respectively. ? 2019 Taylor & Francis Group, LLC.