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《Acta Petrolei Sinica(Petroleum Processing Section)》 2015-01
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From Detailed Desulfurization Mechanism to Successful Commercial ApplicationⅠ.Features and Advantages of S Zorb Technology

LONG Jun;LIN Wei;DAI Zhenyu;Research Institute of Petroleum Processing,SINOPEC;  
This study is conducted an oriented basic research to the chemistry about S Zorb technology.The result shows that S Zorb technology is a kind of ultra-deep and high selectivity catalytic hydrodesulfurization process specially used for treating FCC gasoline.It is found that there is a synergistic chemical effectiveness between ZnO and active metal components as ZnO is introduced to the catalyst and H2S generated during the process can be converted rapidly,thus an extremely low H2S partial pressure system is created,thereby the hydrodesulfurization conversion depth can be highly improved and side reactions such as H2S combined with high octane number olefins to mercaptans can be avoided.It is realized that Ni kept at zero valent state exihibits high adsorption activity to thiophene.While to high octane number olefins and aromatics,the adsorption activity is very low.On this basis,synergetic desulfurization mechanism of S Zorb technology can be inferred and the operating principle of each technical sectors can be understood.The key technical measures on how to realize the ultra-deep desulfurization while keep high octane number are so obtained.
【Fund】: 中国石油化工股份公司“十条龙”攻关项目(113138)资助
【CateGory Index】: TE624.55
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