摘要
建立了甲酸甲酯和水共存下的甲醇分解制燃气体系的热力学模型,以研究该体系的热力学平衡限度．考察了温度、压力、进料组成对体系的平衡限度影响,探讨了甲醇转化率、氢气和一氧化碳等产物的收率及选择性等．分析发现反应器温度在200℃、压力为0．1 MPa时可以获得最佳的原料转化率．研究认为甲醇分解的副产物甲酸甲酯可明显提高氢气和一氧化碳的收率,采用循环工艺分解甲醇可行．进料中的水会导致体系吸热能力降低,且促进二氧化碳生成,应尽量降低进料中水的含量．
A thermodynamic model was proposed to study the equilibrium limitation of methanol decomposition to fuel-gas in the present of methyl format and water. The influences of temperature, pressure, feed stock composition on the equilibrium limitation were investigated. And the methanol convertibility, the productivity and selectivities of carbon monoxide and hydrogen were discussed. Relative higher convertibility can be obtained at 200 ℃ and 0. 1 MPa. The study proves the feasibility of using recycle process, and shows that the productivities of hydrogen and carbon monoxide could be increased remarkably, in the present of methyl format, a byproduct of methanol decomposition. Water in the feed stock will reduce heat-absorblng ability of the system and promote the conversion to carbon dioxide.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2005年第6期570-574,共5页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(90210032).
关键词
甲醇分解
氢
化学平衡
热力学
methanol decomposition
hydrogen
chemical equilibrium
thermodynamics
