This is an abstract for master thesis can you rephrase it and rewrite it in good way and with same information and number of words: Biogas is a renewable energy resource, the production of it for green energy in wider industrial applications and cleaner fuel has attracted a great deal of attention for many countries. It has been used to provide heat, power, and electricity production in co$-$generation, it is produced in many environments, including sewage and animal farms through the anaerobic decomposition of organic matter and it is produced from anaerobic biodegradation of biomass in the absence of oxygen and the presence of anaerobic microorganisms, and it takes only a relatively short time to form. Biogas consists of several gases, including methane $($CH$4),$ which can be used as a fuel to generate heat and light, and it is also used in the manufacture of organic chemicals. Biogas also contains carbon dioxide $($CO$2),$ smaller amount of hydrogen sulfide $($H$2$S$),$ ammonia $($NH$3)$ and a few other gases, which negatively affects the activity of biogas; presence of carbon dioxide decreases the energetic content of biogas because it in an inert in term of combustion, and presence of hydrogen sulfide cause corrosion in pipelines and devices. Increasing the methane purity has implications for new green energy. This study developed biogas and purified absorption and adsorption of carbon dioxide and hydrogen sulfide by aqueous solutions as absorbents and different types of catalysts in Jordan such as zeolite and modified zeolite, ash, and Tripoli as adsorbents in packed bed column was experimentally investigated. Liquid solvents were circulated through the column, contacting the biogas in countercurrent flow in presence of catalyst. The Test results revealed that the catalyst used was effective to remove $95\%$ of carbon dioxide and to below the detection limit of hydrogen sulfide and get $98\%$ methane. By using adsorption and adsorption in the presence of a catalyst, the purification of biogas can be controlled. The amount of methane is increased and concentrated in biogas to achieve a similar composition as a natural gas, allowing it to be used as transportation fuel and in pipelines systems for household use. This technology is scalable and can be applied in the presence of other catalysts for the synthesis and purification of biogas.

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