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The major barriers in development of Pakistan’s economy are dependency on inefficient and unaffordable energy technologies, thus is an energy-short country.  The future energy demands of the country can be fulfilled by opting renewable energy technologies. The number of biogas energy generation Systems is increasing steadily, as they are generated with low-cost. Pakistan’s 70% population residing in rural areas, so biogas energy can be a good substitute. A national policy regarding the development of biogas energy technology is needed to enhance the biogas potential. This study focuses on control of agriculture waste by chemical absorption process, in which the biomass is converted into fuel. In this way not only biomass is treated but renewable energy can be generated. The raw material, biomass, was fed to an anaerobic digester that operates at 35 oC and produces biogas along with sludge biomass. The mixture of biogas and sludge biomass was separated with the help of flash unit and further separation was done by centrifuge to get concentrated biomass and water. The raw biogas was compress from 1 bar to 5 bar in order to remove ammonia from biogas. The biogas was upgraded to bio methane in an absorption column by treating biogas with potassium hydroxide. The biomass potential of Pakistan which is 853,500 tons/day can be utilized by using this process to generate 469,425 tons/day of bio methane. Cost analysis indicated that the chemical absorption is feasible.