Performance evaluation of LPG desulfurization by adsorption for hydrogen production

The adsorption of sulfur compounds, in commercially available LPG, has been studied using different adsorbents, namely Zeolite, ZnO and house made date pits activated carbon (DP-AC). It was found that the three adsorbents are capable of effectively removing sulfur compounds at different feed sulfur concentrations. The effects of height to diameter aspect ratio of the adsorption column, flow rate of LPG and input sulfur concentrations have been studied. A first order kinetics model has been used to describe the adsorption, and the kinetics constant was found to increase by increasing the flow rate of LPG and decrease by increasing the amount of adsorbent used. The developed model described the system fairly well, and can be used in designing and scaling-up of fixed-bed adsorption columns.

Adsorption of sulfur compounds using Zeolite, ZnO and DP-AC have been studied. Effects of amount of adsorbent, diameter to height ratio, LPG flow rate and input sulfur concentration were evaluated.2.Figure optionsDownload as PowerPoint slide