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| 1 | 基于离子液体的乙腈-乙醇-水共沸体系节能分离显示文摘乙腈生产过程中产生的乙腈-乙醇-水物系,由于在常压下产生了3种二元共沸物和1种三元共沸物,采取常规精馏无法对物系进行有效分离,因此基于COSMO-SAC理论对具有应用潜力的4种离子液体进行筛选,选定1,3-二甲基咪唑磷酸二甲酯([DMIM][DMP])作为分离乙腈-乙醇-水物系的适宜萃取剂,并利用σ-谱图对离子液体与该物系的作用机理进行分析;采用Aspen Plus软件建立了基于离子液体分离乙腈-乙醇-水物系的萃取精馏流程。以年度总费用(TAC)最低为优化目标,并将CO_(2)排放成本计入目标函数中进行流程优化。在此基础上,为了更有效节能,进一步设计优化了热泵精馏萃取分离流程。最终热泵精馏流程TAC比常规流程降低16.82%,CO_(2)排放费用减少了23.35%。 | 陈敬轩 王晓红 田增虎 杜鹏 | 2023 | 石油学报(石油加工)2023，39，2： | 1 |
| 2 | Mild and Highly Selective Preparation of Alkylate Gasoline Promoted by Using Polyetheramine-Based Acidic Ionic Liquid显示文摘A polyetheramine(PEA)-based Br?nsted-acidic ionic liquid(IL)was firstly prepared and used to promote the alkylation of isobutane with isobutene catalyzed by trifluoromethanesulfonic acid(TfOH).PEA-IL not only can resolve the persistent problem of poor solubility of the volatile and refractory reactants,but also can satisfactorily exhibit the separation of the catalyst from product oil for reuse.The PEA-IL/TfOH catalytic system with an adjustable acidity ensures a high alkylate selectivity.Under the conditions covering a VIL/VTfOH ratio of 10:3,a temperature of 25°C,and a reaction time of 25 min,the C8-product selectivity reaches 86.63%.The PEA-IL/TfOH catalyst can be reused 13 times without a decrease in the catalytic performance.After many operating cycles,the hydrophobic PEA-IL can be easily regenerated by simply adding water.This study provides a green,economic,and highly efficient method for producing high-octane alkylate gasoline. | Gao Xu Yu Fengli Wang Zhiping Xie Congxia | 2020 | China Petroleum Processing & Petrochemical Technology2020，22，2： | 0 |
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