Investigation of sour gas sweetening unit and new biological methods of H2S removal

The process of removing acid gases from the natural gas flow, which is called gas sweetening, is currently Amine solutions are used, and this process has a cost to reach the desired yield. The required energy and the level of pollution are high. The cost and energy part of this process is related to heat production. It is necessary in the boiler as well as the energy supply of the amine recovery tower condenser as well as the fixed costs. Recently, new biological methods have been proposed to remove acid gases from the natural gas flow. Amin’s common process has low cost, energy and low pollution. In this article, we will first examine the process Amin is given in general, then new biological processes and researches done in this relation are introduced. becomes