文献类型：期刊文献

中文题名：小分子烃类及含氧有机物蒸汽重整制氢反应热力学

英文题名：Thermodynamics of Steam Reforming of Several Hydrocarbons and Carbohydrates

作者：熊刚华[1];李平[1];张世渊[1];周兴贵[1];潘相敏[2];周伟[2]

机构：[1]华东理工大学化学工程国家重点联合实验室,上海200237;[2]同济大学新能源汽车工程中心,上海201804

年份：2010

卷号：26

期号：2

起止页码：104

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：科技部国际科技合作项目(2007DFC61690);化学工程国家重点实验室开放项目(SKL-ChE-08C05)

语种：中文

中文关键词：烃类;含氧有机物;蒸汽重整;制氢;热力学

外文关键词：hydrocarbon; carbohydrate; steam reforming; hydrogen production; thermodynamics

摘要：针对12种烃类、醇类、醛类和醚类的蒸汽重整制氢反应,选择体系压力为0.1 MPa,有机物和水按反应生成二氧化碳和氢气的计量比进料,采用化工流程模拟软件Aspen Plus计算了甲烷、乙烷、丙烷、乙烯、丙烯、甲醇、乙醇、丙醇、甲醛、乙醛、二甲醚和乙醚在不同温度下发生的蒸汽重整制氢反应过程的反应吉布斯自由能、各物质的平衡摩尔分数以及氢选择性和产率。结果表明:烃类重整需在700℃以上才能获得较高的氢产率,其中甲烷蒸汽重整最有利;醇类中的甲醉相对乙醇和丙醇而言。更适合于进行重整制氢反应,在150℃就能得到很高的氢产率(0.97);醛类中甲醛体系在低温下的氢产率趋近1;醚类中二甲醚体系在180℃时氢产率最高。不同物质的重整平衡体系中,一氧化碳的含量随温度升高而增高。
The reaction Gibbs free energy, the equilibrium molar fraction of products, the selectivity and yield of hydrogen from the steam reforming of methane, ethane, propane, ethylene, propylene, methanol, ethanol, propanol, formaldehyde, acetaldehyde, dimethyl ether and ethyl ether at different temperature were calculated using simulation software Aspen Plus on the basis of system pressure of 0.1 MPa and the stoichiometric equations of the steam reforming of different organic compounds to produce COz and H2 for steam reforming of several hydrocarbons and carbohydrates to produce hydrogen. The results showed that the hydrogen yield from the steam reforming of hydrocarbons was very high only above 700℃ and methane was the most favorable raw material among different hydrocarbons. Methanol was more suitable for producing hydrogen than ethanol and propanol, the hydrogen yield from it could reach 0. 97 at 150℃. The hydrogen yield from the formaldehyde system could approximate to 1 at much lower temperature. For dimethyl ether steam reforming process, the largest hydrogen yield was obtained at 180℃. The content of CO in different steam reforming system increased with the increase of temperature.