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Residual oil cracking combined with hydrogen production by steam‐iron reaction
Author(s) -
Fukase Satoshi,
Suzuka Teruo
Publication year - 1994
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450720214
Subject(s) - wüstite , residual oil , catalysis , cracking , magnetite , iron oxide , hydrogen , materials science , oxide , chemical engineering , fluid catalytic cracking , redox , hydrogen production , stoichiometry , metallurgy , inorganic chemistry , chemistry , organic chemistry , composite material , engineering
A new residual oil upgrading process has been developed. Residual oils were cracked over an iron oxide catalyst with simultaneous generation of hydrogen. The newly‐developed iron oxide catalyst containing CaO and Cr 2 O 3 was found to be a good catalyst for this process because it exhibited stable activity in the steam‐iron reaction in the laboratory experiment and also in a large scale pilot plant. Effects of these foreign oxides on redox cycles were investigated. The catalyst was designed so as to maintain the stoichiometric balance between the reduction of magnetite and the oxidation of wustite by adding CaO and Cr 2 O 3 .