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Title: Kinetic study of model reactions in the gas phase at the early stage of coke formation

This paper reports that the most probable gas-phase reactions at the early stage of coke formation were elucidated by kinetic study on the model reactions adopted for formation of cyclic compounds and growth of ring. It was revealed that the formation and growth of ring proceeded mainly through cycloaddition of butadiene or allyl radicals to unsaturated hydrocarbons at relatively low temperatures ({approximately}600{degrees}C), i.e., through a Diels-Alder type reaction. On the other hand, such growth of ring as formation of biphenyl accompanying dehydrogenation from benzene can proceed only at the higher temperatures. It was also revealed that in the growth of the ring, cycloaddition of butadiene favors a cyclic olefin molecule that possesses a nonconjugated double bond and a nearly planar structure.
Authors:
;  [1]
  1. (Dept. of Chemical Reaction Engineering, Faculty of Pharmaceutical Sciences, Nagoya City Univ., Mizuho-ku, Nagoya 467 (JP))
Publication Date:
OSTI Identifier:
5543805
Resource Type:
Journal Article
Resource Relation:
Journal Name: Industrial and Engineering Chemistry Research; (United States); Journal Volume: 31:1
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COKE; CHEMICAL REACTION KINETICS; COKING PLANTS; DIELS-ALDER REACTION; PHASE STUDIES; BIPHENYL; GASES; MOLECULAR MODELS; AROMATICS; CHEMICAL REACTIONS; FLUIDS; HYDROCARBONS; INDUSTRIAL PLANTS; KINETICS; MATHEMATICAL MODELS; ORGANIC COMPOUNDS; REACTION KINETICS 010409* -- Coal, Lignite, & Peat-- Pyrolysis & Carbonization-- (1987-); 400800 -- Combustion, Pyrolysis, & High-Temperature Chemistry