Part of #Study of biological processes of gas sweetening and sulfur recovery# :
Publishing year : 2009
Conference : Sixth International Congress of Chemical Engineering
Number of pages : 7
Abstract: With due regard to environmental considerations, the emphasis on the conversion of separated hydrogen sulfide to sulfur in the natural gas sweetening process is increasingly emphasized. Current and economic processes of gas sweetening and sulfur recovery such as amine processes and then Claus process and oxidation-reduction processes in liquid phase in small scale designs are expensive and uneconomic. With these limitations and because of the special properties of biological processes that occur at ambient temperature and pressure, the reduction of production of secondary pollutants and the reduction of costs and necessary investments, these types of processes are specially considered by gas technology researchers since the 1980s, and Even in recent years, some of these processes like the Shell-Paques process have been extensively applied in the world of gas technology. So in this paper, the biological processes in which gas sweetening and sulfur recovery are performed using the use of microorganisms like Thiobacillus ferrooxidan have been studied and the advantages and disadvantages of each method have been expressed in detail.