摘要
煤层气是我国常规天然气的重要接替能源,开发利用煤层气对于增加能源供应、改善能源结构、减少温室气体排放、发展低碳经济皆具有重要意义。以井下抽放煤层气即含氧煤层气为研究对象,对其分离提纯开展了理论方面的研究。首先,修正了压力操作条件下煤层气的爆炸极限,确定了其安全分离提纯的临界参数;其次,建立了中空纤维膜组件分离含氧煤层气的数学模型并利用MATLAB数学软件实现了求解;最后,在模型的基础上,利用正交分析法考察了膜组件参数和操作条件对膜分离效果的影响,以指导膜组件的选择和膜过程的设计与优化。
Coal mine methane（CMM） is becoming a significant substitution for regular natural gas resource in China.The exploitation and utilization for CMM will play an important role in enriching energy supply,improving energy structure and reducing greenhouse gas emission,especially under the circumstance of developing low-carbon economy.For the current situation of underground drainage,CMM blends with oxygen will result in extremely difficulty for its sequent processing and utilization.Consequently,the critical parameter for CMM safe operation under pressure condition was determined by means of amending the explosive limit of CMM.Furthermore,the mathematical model of oxygen-blend CMM membrane separation using hollow-fiber membrane was built simultaneously.The influence of membrane module parameter and operational condition on membrane separation effect were imvestigated by orthogonal analysis so as to guide the selection of membrane module and the design optimization of membrane process.
出处
《化学工业与工程》
CAS
2010年第6期510-515,共6页
Chemical Industry and Engineering
关键词
含氧煤层气
膜分离
数学模型
oxygen-blend coal mine methane
membrane separation
mathematical model
