In Ability of KMnO4 Particles Confined In Palm Carnel Shell For H2S Removal In Fixed Biogas Reactor

ABILITY OF KMnO4 PARTICLES CONFINED IN PALM CARNEL SHELL FOR H2S REMOVAL IN FIXED BIOGAS REACTOR

Abstract

Biogas consists mainly of methane from activities of an-aerobic microorganisms. Biogas made from organic matter such as biomass (vegetable and fruit waste) such as those in the Gamping market in Yogyakarta-Indonesia. One of the problems in biogas is the content of H₂S gas which in certain quantities is toxic, causing corrosion of the biogas apparatus, reducing combustion efficiency and causing acid rain. The aim of the study was to remove H₂S gas in a fixed bed biogas reactor using 20% KMnO₄ impregnation on activated carbon of palm kernel shells was pre-oxidation treatment using H₂O₂ (20% 2KMnO₄-KATKS-H₂O₂). Biogas flowed into fixed bed reactor was containing 20% 2KMnO₄-KATKS-H₂O₂ particles to oxidize H₂S gas. The first variation is H₂S in a nitrogen mixture flow on to fixed bed reactor at 3 temperatures, namely 30, 40 and 50°C. The second variation is the mass of KMnO₄ in the fixed bed biogas reactor varied by 4 grams, 4.5 grams and 5 grams. Research results of H₂S gas in a fixed bed reactor with uncontrolled; 30°C; 40°C; 50°C the concentration decreased successively 98.48%; 98.7%; 98.45% and 98.36%. H₂S gas with a concentration of 20 ppm in a fixed bed biogas reactor decreased with variations of 4 grams, 4.5 grams and 5 grams respectively, namely 70%; 85%; 90%. This research has a novelty used the KMnO₄ carrier material in the form of activated carbon kernel shells, using a continuous fixed bed reactor and the incoming material is in the form of biogas.

Keywords: Biogas, Fruit waste, H₂S, KMnO₄, KATKS, H₂O₂, Fixed bed