4.7 Article

Efficient adsorptive removal of dibenzothiophene from model fuel over heteroatom-doped porous carbons by carbonization of an organic salt

期刊

CHEMICAL ENGINEERING JOURNAL
卷 259, 期 -, 页码 771-778

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2014.08.054

关键词

Porous carbon; Desulfurization; Heteroatom; Dibenzothiophene; Aromatics

资金

  1. National Natural Science Fund of China [U1232134]
  2. Program for New Century Excellent Talents [NCET-13-0408]

向作者/读者索取更多资源

A series of oxygen and nitrogen-doped porous carbons were synthesized by carbonization of tetrasodium ethylenediamine tetraacetic acid (EDTA-4Na) at various temperatures. Due to the high volume of pores smaller than 1 nm, the resulting carbons were shown to be promising for adsorptive desulfurization with high maximum adsorption capacity of DBT from model oil (up to 49.1 mg S/g). In the presence of aromatics, the adsorption of DBT was still significant. It was also found that not only content but also types of surface functionalities were important for the adsorption process, especially in the presence of aromatics. Regeneration experiments showed that more than 80% of the adsorption capacity could be recovered by solvent extraction. (C) 2014 Elsevier B.V. All rights reserved.

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