王菊,许洁,杜春华,吴现力

• 1:青岛农业大学化学与药学院反应与分离技术实验室

摘要(Abstract)：

低共熔溶剂(DESs)作为一种新型环境友好溶剂，在萃取精馏中展现出巨大潜力。通过Aspen Plus流程模拟软件设计并优化了以DESs(氯化胆碱/三甘醇，物质的量比为1∶3)为萃取剂的异丙醇-水萃取精馏分离工艺。以年度总费用(TAC)最小为目标，采用序贯迭代法对进料位置、萃取剂用量、萃取剂温度、理论板数和回流比进行优化。模拟结果表明，与以传统溶剂乙二醇(EG)为萃取剂的工艺相比，该工艺所需的塔板数、回流比显著减小，TAC可降低20.95%。为进一步挖掘节能潜力，构建了结合热集成与热泵的两种强化工艺。全面的对比分析表明，热集成-热泵辅助萃取精馏工艺较以EG为萃取剂的传统工艺的能耗、TAC及有效能损失分别降低了46.35%、31.10%和39.33%。DESs在经济性与环境友好性方面展现出替代传统萃取剂的潜力。

关键词(KeyWords)： 低共熔溶剂;萃取精馏;异丙醇-水;热集成;热泵

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21706142);; 山东省自然科学基金(ZR2025MS250);; 青岛农业大学高层次人才科研基金(6631114316,6631116020)

作者(Author): 王菊,许洁,杜春华,吴现力

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