Vol. 12, Special Issue 11 (2023)

Author(s):
Sagar Patil, SR Kalbande and AK Kamble

Abstract:
The research work focuses on the design and development of a biogas cleaning system for electricity generator to achieve higher efficiency in terms of power production. A raw biogas consists of 60% combustible methane and 39% non-combustible elements containing carbon dioxide (36%), water vapor (0.5%), hydrogen sulfide (1%) and traces of other gases. The system is designed considering the filtration materials like red soil, NaOH solution, silica gel crystals and activated carbon. The biogas cleaning system composes of four stages: stage 1 is the red soil filter intended to remove the hydrogen sulfide; stage 2 is the NaOH solution filter intended to reduce the carbon dioxide; stage 3 is the silica gel crystal filter intended to remove the moisture; stage 4 is the activated carbon filter intended to remove the fine impurities from the raw biogas. The biogas cleaning system is able to purify 50 m3 day-1 of raw biogas.