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Citation: JIA Yu-Xiang, GUO Xiang-Yun. Monte Carlo Simulation of Adsorption Process of CO and H₂ in Supercritical Fluids[J]. Acta Physico-Chimica Sinica, ;2005, 21(03): 306-309. doi: 10.3866/PKU.WHXB20050316 shu

Monte Carlo Simulation of Adsorption Process of CO and H₂ in Supercritical Fluids

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan　030001; Graduate School of the Chinese Academy of Sciences, Beijing　100039

Received Date: 9 July 2004
Available Online: 15 March 2005

The Monte Carlo method was employed to investigate the adsorption isotherm of carbon monoxide and hydrogen in n-hexane with different densities. The model took into account the effects of n-hexane density on the adsorption amount and adsorption rate of carbon monoxide and hydrogen on the catalyst surface. From the simulation results, the adsorption amount of the solutes is influenced by several factors, such as the system pressure and the competitive adsorption between the solvent and solutes. When the hexane density is lower than its critical density, the increase of the system pressure can evidently enhance the adsorption of CO and H₂.However the increase of the solute adsorption becomes slow due to the competitive adsorption of the solvent when the system is in its supercritical state.
- Supercritical fluids; Monte Carlo simulation; Adsorption; Methanol synthesis
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Monte Carlo Simulation of Adsorption Process of CO and H2 in Supercritical Fluids

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Monte Carlo Simulation of Adsorption Process of CO and H₂ in Supercritical Fluids