由于应用中贮存容积的限制,故贮存物料的密度便成为重要的参数。环境温度下天然气(甲烷)的贮存即属此例。吸附虽可用于增加天然气的贮存密度,但在环境温度下,欲要提高吸附量而采用普通方式活化的活性炭,似乎并不适宜甲烷密度的增加。使用水蒸汽活化的PVDC活性炭和CO_2活化的CNS活性炭,单位质量的甲烷吸附量皆呈现增加势头;但用贮存容积的观点对此数据进行考虑时,其活化过程的收效并不明显。 Due to the limited storage capacity in the application, the density of the stored material becomes an important parameter. Natural gas (methane) storage at ambient temperature is the case. Although adsorption can be used to increase the storage density of natural gas, activated carbon activated in the usual way to increase the adsorption capacity at ambient temperature does not seem suitable for an increase in methane density. Using water vapor activated PVDC activated carbon and carbon dioxide activated CNS activated carbon, the adsorption capacity per unit mass of methane shows an increasing trend; however, when the data is considered from the storage volume, the activation process is not obvious.