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浆态床中合成气制二甲醚宏观动力学的研究(英文)
引用本文:郭俊旺,牛玉琴,张碧江.浆态床中合成气制二甲醚宏观动力学的研究(英文)[J].天然气化学杂志,2000,9(4):331-342.
作者姓名:郭俊旺  牛玉琴  张碧江
作者单位:中国科学院山西煤炭化学研究所!山西 太原 030001,中国科学院山西煤炭化学研究所!山西 太原 030001,中国科学院山西煤炭化学研究所!山西 太原 030001
基金项目:Ford China Research and Development Fund under Project!No.9712302
摘    要:以液体石蜡为介质,在合成甲醇催化剂与甲醇脱水催化剂比例为5、催化剂浓度为10 g/300 mL液体石蜡,温度为250℃~280℃,压力为3 MPa~5 MPa,气体空速为4 000 mL/(g(h)~7 000 mL/(g(h)的条件下,建立了浆态床合成气制二甲醚宏观动力学模型。甲醇合成反应和甲醇脱水反应的活化能分别为14.06 kJ/mol和23.53 kJ/mol。甲醇当量生成速率和二甲醚生成速率的计算值与实验值的相对误差在10%和20%以内。

关 键 词:二甲醚  动力学  浆态床  合成气  催化剂

GLOBAL KINETICS STUDY OF LPDME PROCESS FROM SYNGAS
Junwang Guo,Yuqin Niu,Bijiang Zhang.GLOBAL KINETICS STUDY OF LPDME PROCESS FROM SYNGAS[J].Journal of Natural Gas Chemistry,2000,9(4):331-342.
Authors:Junwang Guo  Yuqin Niu  Bijiang Zhang
Institution:Institute of Coal Chemistry, The Chinese Academy of Sciences Taiyuan, Shanxi 030001
Abstract:Global kinetic models are firstly developed for liquid phase dimethyl ether synthesis from syngas (LPDME), which is successfully based on reasonable assumptions and simplifications. The activation energies of methanol synthesis reaction and methanol dehydration reaction are 14.06 kJ/mol and 23.53 kJ/mol, respectively. CO and CO2 are strongly adsorbed on methanol catalyst of C301, and methanol and water are on gamma-alumina. The relative errors of experimental data and the calculated ones for methanol equivalent productivity and DME productivity are mostly within 10% and 20%. The model also gives a satisfactory explanation for experimental phenomena.
Keywords:dimethyl ether  kinetics  liquid phase  syngas  catalyst
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