The main problems and development direction of biological desulfurization BDS method has the advantages of low investment cost, low operation cost, normal temperature and pressure, and no hydrogenation.
At present, it is a feasible method to produce low sulfur fuel by using the original equipment of biological hydrogen combined desulfurization unit in many refinery hydrodesulfurization units. However, there are still some problems in the industrialization of BDS. The sulfur compounds in fossil fuels are complex in structure. Some specific organic sulfur compounds metabolized by biocatalysts have good desulfurization effect, but others have poor desulfurization effect. Therefore, it is one of the research directions to continue to explore biocatalysts with wide desulfurization range and wide selectivity.
目前还有大量的基础研究和应用研究工作要做，未来的微生物脱硫研究将要在以下领域展开∶
At present, there are still a lot of basic research and application research work to be done. The future research on microbial desulfurization will be carried out in the following areas:
Different model compounds were used to study the removal technology of organic sulfur from petroleum microorganism. At present, the research of organic sulfur removal mainly focuses on thiophene type sulfur compounds. Mercaptan and sulfide are selected as two model compounds for further research.
Strengthen the research and understanding of the regularity and mechanism of microbial desulfurization process. With the development of genetic engineering technology, research on single bacteria of microbial desulfurization, preparation method of biological desulfurization flocculant and screening of microbial desulfurization catalyst, development of molecular genetics of microbial desulfurization and thiophilic enhancement, and Application Research on metabolic mechanism with high desulfurization activity. In addition, it is a research direction to improve the resistance and desulfurization ability of desulfurization bacteria. The development of bioengineering technology will change many bottlenecks that restrict the research of petroleum biological desulfurization.
Further explore the measures and process of desulfurization, pay attention to solve the problem of large-scale cultivation, recovery, circulating desulfurization. Because of the need for high concentration of bacteria in flotation operation, the desulfurization results can be obvious. Therefore, in the industrial production of surface modification, the bacterial content required in the separation process is high.
如果能在这些方面继续改良该技术，生物脱硫的应用将具有相当广阔的前景。
If we can continue to improve the technology in these aspects, the application of biological desulfurization will have a broad prospect.
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