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我校段林海副教授的一项研究成果获重要突破
2013-06-13 09:28     (点击次数:)

我校化学化工与环境学部段林海老师的论文“Adsorption, co-adsorption and reactions of sulfur compounds, aromatics, and olefins over Ce-exchanged Y zeolites”在美国化学会期刊《Journal of Physical Chemistry C》上发表,该期刊2012年的影响因子是4.805,是国际化学方面的著名(顶尖)期刊,这也是我学部首次在如此高水平期刊上发表论文。

题目:Adsorption, co-adsorptiona and reactions of sulfur compounds, aromatics, and olefins over Ce-exchanged Y zeolite

作者:Linhai Duan, Xionghou Gao, Xiuhong Meng, Haitao Zhang, Qiang Wang§, Yucai Qin, Xiaotong Zhang, Lijuan Song*,†

摘要:The co-adsorption of olefins can effectively contribute to the alkylation and oligomerization reaction of thiophene and further decrease the desulfurization performance of CeY. The influence of aromatics on the desulfurization performance of CeY can be related to the competitive adsorption, diffusion process between sulfur compounds and aromatics. The diffusion process is the rate-controlling step for benzene, and the sorption process is the rate-controlling step for thiophene. Thiophene molecules can be preferentially adsorbed on the Lewis acid sites by direct interaction between sulfur on sulfur compounds and Ce ion (S-M bond) or a π complexation, but the S-M bond interactions play a more dominant role than π complexation in CeY/sulfur compounds system.

发表时间(年,期,页码): 2012, 116, 25748-25756.

研究成果是在省石油化工催化科学与技术重点实验室宋丽娟课题组的国家自然基金项目:1)吸附剂表面酸性对燃料油选择性吸附脱硫性能的影响,项目号:20976077;2)清洁燃料选择性吸附脱硫过程中硫化物吸附行为的研究,项目号:20776064的资助下完成的,主要解决目前我国紧迫的燃料油深度脱硫问题,以满足国Ⅴ标准和我国日益恶化的环境污染问题。这一研究成果是我校科研成果的一项突破,为燃料油深度脱硫吸附剂的设计开发将提供建设性指导意义。

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