(555d) Molecular Simulation and Experimental Study of CH4 Adsorption in Surfactant Solution | AIChE

(555d) Molecular Simulation and Experimental Study of CH4 Adsorption in Surfactant Solution

Authors 

Xue, Y. - Presenter, China University of Petroleum (Beijing)
Molecular Simulation and Experimental Study of CH4 Adsorption in Surfactant solution
Yihan Xue
Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum (Beijing), Beijing, China
Email address:
xyh3610@126.com(Yihan Xue)
Abstract: The research on the storage and transportation technology of green methane is a hot spot nowadays. In order to overcome the disadvantages of LNG and CNG, the effect and method of methane adsorption in surfactant aqueous solutions are studied. In order to compare the effect of the methane adsorption in surfactant aqueous solutions, five surfactant aqueous solutions of sodium dodecyl sulfate (SDS), polyoxyethylene sorbitan monooleate (Tween 80), octylphenol ethoxylate (TX-100), dodecyl dimethyl betaine (BS-12) and castor oil polyoxyethylene ether (EL-20) at the concentration range of 25 g/L-200 g/L are selected for the study. Molecular simulation and experimental research are adoped in the research process. The adsorption energy and adsorption amount in five surfactant systems with different concentrations is numerically simulated at normal pressure or low pressure with normal temperature, at the same time, experimental study is performed. The numerical simulation results agree well with the experimental results. The results show that SDS has the best adsorption effect on methane at the same concentration. According to the research results, suggestions are made for the industrial application of methane adsorption in surfactant aqueous solutions.
Keywords: Methane storage and transportation, Surfactant aqueous solution, Adsorption energy, Adsorption amount