Acetylene adsorption on carbon black by pulse injection
In order to compare the adsorption capacity of various carbon blacks, C2H2 adsorption was examined at 673 ~ 873 K. The adsorption experiment was carried out with repeated injections of C2H2 pulse into a He stream which flowed through carbon black powders and the amount of adsorbed C2H2 was measured by using a TCD. At and below 773 K, as the injection was repeated, the adsorption amount gradually decreased and eventually the adsorption did not occur any more. The cumulative adsorption increased as the temperature was raised; this is a typical activated chemisorption. At 873 K, however, a constant amount of C2H2 was consumed per pulse for repeated injections after initial several injections. A nearly-straight line could be obtained on a semi-log plot, that is, C2H2 adsorption at 773 K or C2H2 consumption at 873 K vs. log (surface area). A physicochemical scheme of the adsorption processes was proposed.
Acetylene Activated chemisorption Adsorption Carbon black Pulse technique
Jung Hun Kwak Ki June Yoon Sang Yup Lee Mi So Kim
Department of Chemical Engineering, Sungkyunkwan University Suwon 440-746, Korea
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）