Selective Homogeneous Oxidation System for Producing Hydroperoxides Concentrate: Kinetics of Catalytic Oxidation of Gas Oils

Autor:	Syed Mumtaz Danish Naqvi, F. Khan
Rok vydání:	2009
Předmět:	Aqueous solution Chemistry General Chemical Engineering Potassium chlorate Inorganic chemistry General Chemistry Decomposition Redox Industrial and Manufacturing Engineering Catalysis chemistry.chemical_compound Acetic acid Catalytic oxidation Oxidizing agent Organic chemistry
Zdroj:	Industrial & Engineering Chemistry Research. 48:5642-5655
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie900364w
Popis:	A selective and mild (55 °C and 50 psig) homogeneous oxidation system has been described to produce hydroperoxides from a narrow cut made from typical gas oil. During this process oil, dissolved in wet acetic acid, is treated with air in the presence of the redox couple Co(III)/Co(II) (partially oxidized catalyst, POC). A straightforward route to POC consists of oxidizing Co(II) in wet acetic acid with calculated aqueous potassium chlorate. Initiation is the manifestation of the potent oxidizing ability of Co(III) toward generating alkyl radicals from hydrocarbons in the oil. Classical propagation then leads to assorted hydroperoxides, simultaneously decomposed by POC. Kinetics of the simultaneous formation and decomposition of hydroperoxides, under varying sets of process and composition variables, was studied in an isothermal, mechanically agitated, semibatch reactor, operating in the pure kinetic regime. A unique kinetic model, based on a rare irreversible consecutive reaction network (pseudo-first-ord...
Databáze:	OpenAIRE
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