Utilization of steel wool as removal media of hydrogen sulfide in biogas

2nd international Tropical Renewable Energy Conference 2017

Riyadi, U.^1 ; Kristanto, G.A.^1 ; Priadi, C.R.^1,2

Environmental Engineering Program, Faculty of Engineering, University of Indonesia, Depok

16424, Indonesia^1

Tropical Renewable Energi Center, Faculty of Engineering, University of Indonesia, Depok

16424, Indonesia^2

关键词: Active elements;    Column height;    Concentration reduction;    Health and environment;    High-content;    Impurities reduction;    Removal medias;    Temperature conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/105/1/012026/pdf
DOI  :  10.1088/1755-1315/105/1/012026

来源: IOP

【 摘 要 】

In order to utilize biogas, hydrogen sulfide/H2S impurities reduction is needed to maximize methane/CH4content. Although H2S amount is relatively non-dominant, its presence can trigger corrosion, and is harmful to health and environment. Steel wool can be used as adsorption media to reduce H2S content. This study was conducted to identify the characteristics of steel wool and H2S concentration reduction efficiency. Biogas was flown to a PVC column (2 inches diameter) containing steel wool. The results showed that steel wool media contain active elements of Fe and Zn which are spread evenly on the media surface with a total amount of 97.5% mass. The concentration of H2S at inflow ranged from 68 to 111 ppm with the outflow of 21.2-0 ppm, and the temperature in the system varied between 29-33 °C. Optimal H2S removal efficiency reaches 97% in average, obtained at 100 cm column height and flow rate of 0.1 L/min. It can be concluded that the steel wool media has high content of active element and can reduce H2S content in biogas at ambient temperature condition.