Study on the Removal of Hydrogen Sulfide from Biogas Biomaterial Using Water Scrubbing

Abstract:

Biogas typically refers to a mixture of primarily flammable gases produced from organic matters by means of anaerobic fermentation. Since the abundance and renewability of biomasses, biogas deserves the potential of being as an alternative to fossil energy. However, biogas may contain hydrogen sulfide which will damage the facilities, hazardous to the environment and to living beings. The objective of this study is to develop a water scrubbing system to remove hydrogen sulfide from biogas. The efficiency of hydrogen sulfide scrubbing is assured by injecting biogas into circulating water through a diffuser. The diffuser makes the passing biogas into numerous bubbles. The study carried out on combinations of various water circulation flow rates and biogas volumetric flow rates. Experimental results showed that the performance of hydrogen sulfide removal decreases as a result of increasing scrubbing time. The removal efficiency could be maintained at 47.7% with adequate additional fresh water of 10 ℓ /min. The system requires only simple operation and is cost effective and hence it is suitable for small-scale pig farms in waste processing.

• Periodical: Key Engineering Materials (Volume 723)
• Pages: 599-603
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.723.599
• Online since: December 2016
• Authors: Cheng Chang Lien*, Min Wei Wang, Wei Cheng Lin
• Keywords: Biogas, Biomaterial, Hydrogen Sulfide, Pig Farms, Water Scrubbing

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