摘要
通过实验获得了CH4和N2及其二元混合气体的等温吸附方程,并利用扩展Langmuir方程对二元混合气体的吸附行为进行了预测。结果表明,利用纯CH4气体的等温吸附方程和扩展Langmuir方程对二元混合气体吸附行为的预测结果,均与二元混合气体的等温吸附实验数据存在较大误差。所以,当煤层气中含有一定数量的非甲烷气体时,只有通过混合气体的等温吸附实验,才能获得准确的吸附特性参数。
The adsorption isotherm equations of CH4,N2 and their binary mixedcomponent gas have been obtained by experiments and the gas adsorption behavior has been forecasted by the extendedLangmuir equation.The information dedicates that, the adsorption isotherm equations of pure methane and the forecasted results by extendedLangmuir equation, are considerably different from the experiment data.As a result, when certain amount of gas other than methane exists in coalbed gas, the accurate adsorption properties can be obtained only by the experiments of binarycomponent gas adsorption isotherm.
出处
《地质科技情报》
CAS
CSCD
北大核心
2003年第2期68-70,共3页
Geological Science and Technology Information
基金
国家自然科学基金资助项目(40272069)
