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《Chinese Journal of Catalysis》 2013-01
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Hydrodenitrogenation of porphyrin on Ni‐Mo based catalysts

Eika W.QIAN a,*,Satoshi ABE b,Yusaku KAGAWA a,Hiroyuki IKEDA b a Department of Chemical Engineering,Tokyo University of Agriculture and Technology,2‐24‐16 Nakacho,Koganei,Tokyo 184‐8588,Japan b Nippon Ketjen Co.Ltd,17‐4,Isoura‐cho,Niihama‐shi,Ehime792‐0002,Japan  
The hydrodenitrogenation(HDN) of porphyrins was carried out over a series of phosphorus containing NiMo/Al 2 O 3 catalysts using a fixed‐bed flow reaction system.A method of quantitative analysis of the porphyrin and its derivatives produced by HDN was established.In HDN of porphyrin,four types of hydrocarbons:C8 alkanes,C 8 alkenes,C9 alkanes,and C10 alkanes,and two groups of nitrogen‐containing compounds:alkyl substituted bipyrrolidines(alkylbipyrrolidines) and alkyl substituted tripyrrolidines(alkyltripyrrolidines) were identified.The hydrogenolysis of porphyrins occurred rapidly at lower temperature but higher temperatures were required for the HDN of porphyrins.The NiMoP3 catalyst showed the highest catalytic activity for the HDN of porphyrins.Based on the characterization of the supports and catalysts,it is suggested that the dispersion of Mo is improved and the number of weak acidic sites on the NiMoP catalysts increases with the addition of phosphorus.
【Fund】: supported by a research project of The Japan Petroleum Institute commissioned by the Japan Petroleum Cooperation Center subsidized by the Ministry of Economy Trade and Industry
【CateGory Index】: TQ203.2
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