Biogas is produced when organic matter, such as food scraps or manure, undergo anaerobic fermentation in the absence of oxygen. This process produces methane and carbon dioxide, which can be used to generate electricity or heat, or sold as natural gas. Converting biogas into natural gas can help reduce greenhouse gas emissions and improve energy security. Look at this site for more information  about methods for removing hydrogen sulfide from natural gas.

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There are a number of reasons to convert biogas into natural gas. First, biogas is a renewable resource that can replace traditional fossil fuels. Second, converting biogas into natural gas can help reduce greenhouse gas emissions. Third, converting biogas into natural gas can improve energy security because it can help to offset reliance on foreign oil sources. 

Finally, converting biogas into natural gas can provide economic benefits because it can be sold as natural gas. In the past, biogas was generally regarded as a waste product. However, converting biogas into natural gas can help to minimize the amount of methane that is released into the atmosphere. Methane is a greenhouse gas and it is released into the atmosphere when organic matter decomposes in an anaerobic environment like caves or ocean dead zones. 

By converting biogas into natural gas, methane emissions can be reduced by nearly 80 percent if no additional energy is needed during processing. According to researchers at Flinders University in Australia, heat extracted from anaerobic processes such as livestock manure digestion, composting and landfill digestion could generate enough electricity to meet the needs of up to three million Australian homes.