Study of Adsorption Characteristics on Active Carbon for Ventilation Air Methane Separation

Abstract:

Nine types of active carbon’s adsorption isotherm of nitrogen and methane at 298K, 308K and 318K were measured, and their selectivity factor and PSA sorption selection parameters were calculated. The results show the nine active carbons have desirable selective adsorption characters on methane to nitrogen. AC3 has the highest selectivity factor. It reaches to 5.11 at 298K. And AC3 is the optimal adsorbent in 9 different adsorbents. Its PSA sorption selection parameter is higher than others with the methane concentration of 0.2% at the operating pressure between 50kPa to 150kPa abs. In above conditions the higher the selectivity factor is, the higher the PSA sorption selection parameter will be.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 1253-1258
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.1253
• Online since: December 2011
• Authors: Xiong Yang, Ying Shu Liu, Yong Ling Li
• Keywords: Active Carbon (AC), Pressure Swing Adsorption, PSA Sorption Selection Parameter, Selectivity Factor, Ventilation Air Methane

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