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尿素和甲醇制备碳酸二甲酯的热力学分析
引用本文:王洪波,祁增忠,夏代宽. 尿素和甲醇制备碳酸二甲酯的热力学分析[J]. 天然气化工, 2006, 31(1): 75-78
作者姓名:王洪波  祁增忠  夏代宽
作者单位:四川大学化工学院,成都,610065
摘    要:用Benson基团贡献法计算了碳酸二甲酯(液态)、氨基甲酸甲酯(液态)和尿素(液态)的热力学数据ΔН0f、ΔG0f和热容ΔCp。对尿素和甲醇制备碳酸二甲酯的过程进行了热力学分析,计算了醇解反应的平衡常数,为尿素和甲醇制备碳酸二甲酯过程的设计和催化剂的研究提供了热力学依据。

关 键 词:尿素  甲醇  碳酸二甲酯  热力学
文章编号:1001-9219(2006)01-75-04
收稿时间:2005-06-14

Thermodynamic Analysis of Dimethyl Carbonate Synthesis from Methanol and Urea
WANG Hong-bo,QI Zeng-zhong,XIA Dai-kuan. Thermodynamic Analysis of Dimethyl Carbonate Synthesis from Methanol and Urea[J]. Natural Gas Chemical Industry, 2006, 31(1): 75-78
Authors:WANG Hong-bo  QI Zeng-zhong  XIA Dai-kuan
Affiliation:Institute of Chemical Engneering, Sichuan university, Chengdu 610065, China
Abstract:The standard heat of formation,Gibbs free energy and heat capacity of dimethyl carbonate(l),methyl carbamate(l) and urea(l) are calculated by the method of group contribution discovered by Benson S W.The chemical thermodynamics in the reaction prepared dimethyl carbonate from methanol and urea is studied and the equilibrim constant K0 is evaluated according to the chemical thermodynamic principle.Thermodynamic data is provided for the research of process and catalyst in the preparation of dimethyl carbonate from methanol and urea.
Keywords:dimethyl carbonate   synthesis   methyl earbamate   methanol    urea   thermodynamic analysis
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