Oxidization of hydrogen sulfide in biogas by manganese (IV) oxide particles

Abstract

Hydrogen sulphide is corrosive to most metallic equipment such as pipelines, compressors, gas storage tanks, engines, turbines and other units. It acts as a strong poison for fuel cells and its combustion leads to SO2 emissions. Due to the problems associated with hydrogen sulphide, it is critical to remove it from biogas before further processing. The removal of hydrogen sulphide from biogas using MnO2, which acts as a sorbent and catalyst, was investigated. The research was conducted in a full-scale agriculture biogas plant using chicken manure and maize silage as substrate. The manganese dioxide (manganese (IV) oxide) was derived from the waste products of a water conditioning system, after manganese removal from drinking water. The obtained results showed significantly better adsorption of hydrogen sulphide and faster regeneration of the bed compared to the bed filled with hydrated iron oxides. The H2S concentration in the treated biogas dropped from about 1,650 to 0-5 ppm.

Modeling and optimization of controlled landfill gas performance using LandGEM

“…6, we conclude that the landfill site subject to our study presents stability with respect to the progression of the fermentation process, it also obeys calculated value by the LandGEM numerical model, and the ratio threshold indicated by the scientific literature. In addition to the components CH 4 , CO 2 and O 2 , H 2 S constitutes the component that causes corrosion for most metallic equipment such as pipelines, turbines, compressors, motors and other units, in addition to mechanical wear drastically increasing maintenance costs, and posing safety preoccupations and health problems at work by its dangerous characteristics as flammable, colorless, and extremely harmful, in addition, the recommended limit value according by the scientific literature being 1000 ppm [27,28,29].…”

Energy Transition in the Baltic Sea Region

“…The amount of the formalities associated with micro-scale activities, just as in the case of much more complex and significant projects, has been largely discouraging officials from undertaking any initiatives that would support the residents' property modernization activity. In spite of these problems series of Baltic Sea Region (BSR) and South Baltic Programs (SBP) projects contributed significantly to energy transition issues in cities and rural areas in Pomerania Region, e.g., LowTEMP: Low Temperature District Heating for the Baltic Sea Region, Act Now: Action for Energy Efficiency in Baltic Cities and BP: Bioenergy Promotion (Krug et al, 2015;Cenian et al, 2019;Pakere et al, 2018;Feofilovs et al, 2019;Konkol et al, 2020).…”