13X沸石分子筛低温变压吸附CO_2/CH_4实验研究

采用静态容积法实验测量了CO_2和CH_4在13X沸石分子筛上的吸附等温曲线,CO_2和CH_4吸附量随吸附温度的降低和压力的增大而增加。利用Langmuir模型、Sips模型和Toth模型对实验测量的吸附平衡数据进行拟合,均取得了较好的拟合结果,并利用非线性拟合得到了模型参数。模拟结果表明,Toth模型对实验结果的拟合程度最好。利用测量数据计算了CO_2与CH_4在所用吸附剂上的等量吸附热,发现吸附过程主要发生的是物理吸附,吸附剂表面是非均一的。     

Adamantanes C11-C13 in biodegraded and nonbiodegraded condensates

The distribution of n-alkanes, isoprenanes, and adamantanes in biodegraded and nonbiodegraded condensates (of types B and A by Al.A. Petrov’s classification, respectively) of different genotypes has been studied by gas-liquid chromatography (GLC) and gas chromatography-mass spectrometry (GC-MS). It has been shown that the biodegradation does not affect the relative distribution of adamantanes in the condensates.