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Preparation of Surfactants from a Product of Diesel Fuel Biodesulfurization
Published in Chunshan Song, Chang S. Hsu, Isao Mochida, Chemistry of Diesel Fuels, 2020
Biodesulfurization, or BDS, is a highly selective biocatalytic process for oxidation of heterocyclic sulfur compounds in fossil fuels, such as diesel fuel, that can be used in conjunction with or as an alternative to conventional HDS. In the biodesulfurization process, a proprietary whole-cell recombinant biocatalyst contacts the fuel in a two-phase (oil/water) bioreactor under ambient temperature and ambient pressure conditions. Heterocyclic sulfur compounds, such as dibenzothiophene and its alkylated homologs, are oxidized through a multistep enzymatic pathway that produces water-soluble sulfur compounds as end-products without significant degradation of the hydrocarbon matrix.
Nature’s Green Catalyst for Environmental Remediation, Clean Energy Production, and Sustainable Development
Published in Miguel A. Esteso, Ana Cristina Faria Ribeiro, A. K. Haghi, Chemistry and Chemical Engineering for Sustainable Development, 2020
Benny Thomas, Divya Mathew, K. S. Devaky
Enzymes are progressively piercing the sectors of petroleum industry, where their use was once considered not viable because of either technical or economic reasons.56,63 Enzymes can remove sulfur from petroleum at mild operating conditions like temperature and pressure. In addition to the cost advantages compared to the existing methods, biodesulfurization technology offers the benefit of operating under milder conditions, consuming less energy, and emitting fewer greenhouse gases. The future may realize the practice of enzymes to catalyze cracking, viscosity reduction, and demetalization in a petroleum refinery.63
Desulfurization of Giral lignite of Rajasthan (Western India) using Burkholderia sp. GR 8–02
Published in International Journal of Coal Preparation and Utilization, 2022
Aniruddha Kumar, Alok K Singh, Prakash K Singh, Asha Lata Singh, Binoy K Saikia, Alok Kumar
Biodesulfurization offers a promising approach to make coal as eco-friendly fuel. Biodesulfurization has many advantages over the conventional physical and chemical process (Folsom et al. 1999; Jorjani et al. 2004; Meruane et al. 2002; Singh et al. 2018, 2012d). Microorganism performs without any harmful products under mild condition; promotes the oxidative conversion of reduced sulfur forms into a soluble form (Cardona and Márquez 2009; Koca et al. 2017; Singh et al. 2013).