EFFECT OF H2S ON HYDRODENITROGENATION OF SRC-II HEAVY DISTILLATE.

Muneyoshi Yamada*, Atsushi Saito, Toshiyuki Obara, Jian Wei Yan, Tohru Kamo

*この研究の対応する著者

研究成果査読

2 被引用数 (Scopus)

抄録

Hydrotreatment of SRC-II heavy distillate was investigated over presulfided CoMo/Al//2O//3 catalyst at 390 degree C, 10MPa both in H//2 flow and in 5%H//2S/H//2 flow. Elemental analysis, **1H-NMR, FT-IR and column chromatography were used for characterization of product oils. It was observed that hydrotreatment over presulfided catalyst decreased both nitrogen and sulfur contents. It was also found that gas phase addition of H//2S promoted HDN reaction and inhibited HDS reaction. In order to clarify the promoting effect of H//2S on HDN reaction, product oils were separated into base components by column chromatography and investigated in detail. Hydrotreatment in H//2S/H//2 flow removed 80% of base component of reactant. Comparing with the reaction in H//2 flow, removal of strong base was especially promoted in the presence of H//2S/H//2 and removal of very weak base was conversely inhibited. **1H-NMR results of strong base component showed that hydrogen aromaticity of feed markedly decreased in H//2 S/H//2 flow but no difference was observed between Ha in H//2 flow and that in H//2S/H//2 flow. Promoting effect of H//2S on HDN reaction was thus ascribed to a improvement of catalytic cracking ability for C-N bond.

本文言語English
ページ(範囲)770-777
ページ数8
ジャーナルNenryo Kyokaishi
66
9
DOI
出版ステータスPublished - 1987
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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