Biogas is a mixture of gases consisting mainly of methane (CH₄) and carbon dioxide (CO₂), hydrogen sulphide (H₂S), VOCs, nitrogen (N₂) and other gases. Biogas is typically produced by the breakdown of organic matter under anaerobic conditions and is generated from a variety of processes such as landfills, wastewater treatment plants (WWTP), and anaerobic digestion (AD) facilities. Biogas is used to create renewable energy, either by burning it in a combined heat and power (CHP) engine to generate electricity, or by injecting it into a natural gas network where the biogas upgrade process produces high-purity biomethane.
Biogas contains mainly methane(CH₄), carbon dioxide(CO₂), nitrogen(N₂), hydrogen(H₂), hydrogen sulphide(H₂S) and oxygen(O₂). Hydrogen sulphide in biogas is a toxic gas that is not only harmful to human health, but also pollutes the environment by producing sulphur oxides during combustion. In addition, biogas containing hydrogen sulphide may lead to equipment corrosion, and desulphurisation can protect power generation equipment and other related equipment. Therefore, biogas purification and separation is necessary to improve the quality of biogas and convert it into electricity or heat.Below is a diagram of the proportion of components contained in biogas and the hazards of the components involved.
Many different media are used in the industry as adsorbents to remove hydrogen sulphide, VOCs and siloxanes from biogas. Among them, activated carbon is widely used in the biogas purification process. Activated carbon has a highly developed pore structure with a large specific surface area, which gives it a superior adsorption capacity. Moreover, activated carbon does not react chemically during the adsorption of hydrogen sulfide to maintain the adsorption efficiency. Importantly, Activated carbon has renewable properties and can be reused after proper treatment and regeneration process, which also reduces the cost compared to other desulphurisation methods.
After research, Huamei Company has recently developed a HMKOH460 activated carbon for biogas desulphurisation, which has the following features:
HMKOH460 activated carbon has excellent adsorption capacity and is able to effectively adsorb hydrogen sulphide from biogas, significantly improving the quality of the biogas.
HMKOH460 activated carbon has a highly developed pore structure with superior adsorption properties. The renewable nature of the activated carbon allows it to be reused many times, which effectively extends its service life in biogas treatment.
HMKOH460 activated carbon features low cost and high quality and is shipped directly from the factory with no middleman and very competitive price.
HMKOH460 activated carbon is designed in a column form for easy loading into the treatment system. Its easy-to-replace nature allows for quick replacement when needed without the need for tedious handling.
