Enzyme-Based Diesel Desulfurization Process Offers Energy, CO 2 Advantages

Larry Linguist, Michael Pacheco Energy BioSystems Corp. Houston Refiners faced with the dilemma of reducing the sulfur content of diesel fuel while also lowering carbon dioxide emissions may benefit from biodesulfurization (BDS), a proprietary process that uses enzymes to remove sulfur from petroleum. Biodesulfurization is expected to provide refineries a cost-effective method of meeting the new lower-sulfur standards while providing lower energy consumption and, thus, lower CO2. Recent studies show that energy requirements and CO2 generation will be significantly lower if BDS is used instead of hydrodesulfurization (HDS) to remove sulfur. The difference is most dra...

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