摘要
根据热力学分析建立了等温条件和绝热条件下的合成气甲烷化的热力学模型,选取CO甲烷化反应、水汽变换反应、CO歧化反应为独立反应,CO、CH4和H2O为关键组分。基于此热力学模型可以得到等温条件下的输出气体组成、CO转化率与CH4选择性和绝热条件下的输出气体温度、组成、CO转化率与CH4选择性。并在绝热条件下讨论了输入温度和压力对合成气甲烷化过程的影响。
Thermodynamical model of methanation of synthesis gas at isothermal condition and adiabatic condition were established based on thermodynamical analysis.CO methanation reaction,water shift reaction and CO disproportionation reaction were selected as the independent reactions,CO,CH4 and H2O as the key components.Outlet gas composition,CO conversion rate and CH4 selectivity can be calculated based on the model at isothermal condition.Outlet temperature,outlet gas composition,CO conversion rate and CH4 selectivity can also be calculated based on the model at adiabatic condition.The outlet temperature,CO conversion rate and CH4 selectivity were compared at different inlet temperature and pressure at adiabatic.
出处
《化学工业与工程》
CAS
2011年第6期47-53,共7页
Chemical Industry and Engineering
基金
863计划先进能源技术领域重点项目(2009AA050903)
关键词
合成气
甲烷化
替代天然气
热力学分析
synthesis gas
methanation
substitute natural gas
thermodynamical analysis
