title: A linear comprehensive adsorption model of hydrogen on super activated carbon under supercritical conditions.
abstract: The adsorption isotherms of hydrogen on super activated carbon were measured systematically, covering a temperature range of 93-293 K at 20 K intervals and pressures up to 7 MPa. All the experimental data were linearized by adopting the coordinates ln ln(n) vs 1/(ln P). The results indicate that the adsorption limit (P(lim), n(lim)) exists virtually at high pressure and has a certain physical meaning. Based on the adsorption limit, further analyses were carried out by modeling the adsorption isotherms in the coordinates ln(n(lim)/n) vs ln(RT(ln(P(lim)/P) and a linear comprehensive adsorption model was proposed in the form n (lim)=n.exp(psi T+lambda/T-c/) (beta).[RT ln( P (lim)P )] (b) which can predict the adsorption isotherm of hydrogen on activated carbon in supercritical conditions.
authors.affiliation: State Key Laboratory of Coal Conversion, Chinese Academy of Sciences, Taiyuan, 030001, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhan
authors.forename: Kai-xi
authors.initials: KX
authors.lastname: Li
authors.forename: Yan-li
authors.initials: YL
authors.lastname: Wang
authors.forename: Qing-han
authors.initials: QH
authors.lastname: Meng
authors.forename: Chun-xiang
authors.initials: CX
authors.lastname: Lv
authors.forename: Li-cheng
authors.initials: LC
authors.lastname: Ling