Author/Authors :
Nazari F. نويسنده Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Islamic Republic of Iran , Raheb J. نويسنده Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Islamic Republic of Iran , Kefayati ME. نويسنده Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Islamic Republic of Iran
Abstract :
Combustion of sulfur components of fossil fuels such as oil causes the emission of SO2
in the atmosphere and lead to the formation of acidic rain in the environment. The
conventional approach for desulfurization of fossil fuels is the chemical procedure of
hydrodesulfurization (HDS). However, this method has low efficiency for desulfurization
of ring components of sulfur such as dibenzothiophene (DBT) that include a significant
percentage of the total sulfur content of fossil fuel. biodesulfurization (BDS), is a biological
method proposed for desulfurization of ring components of sulfur which is a nondestructive
pathway to remove sulfur from hydrocarbons of petroleum in the mild
conditions which potentially used as complementary with HDS. For industrial application
of BDS, the approach needs the new challenge to enhance desulfurization activity by
genetic engineering methods and bioreactor development to achieve from a fantasy
technique to an industrial and reality method for reduction of sulfur from fossil fuels. In this
review, we studied and evaluated the BDS and advances in the two last decades.
