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Quenching of pyrolysis products of p‐xylene in toluene‐kinetic studies of acetone‐soluble products
Author(s) -
Kumar A.,
Rao A. N.,
Gupta S. K.
Publication year - 1979
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.5450570310
Subject(s) - trimer , toluene , chemistry , acetone , pyrolysis , xylene , dimer , quenching (fluorescence) , kinetic energy , butanone , diluent , kinetics , photochemistry , organic chemistry , fluorescence , solvent , physics , quantum mechanics
Pyrolysis of p‐xylene was carried out in a tubular reactor at partial pressures varying from 0.184 kPa to 2.199 kPa with steam as a diluent. The product stream was quenched in toluene, and the solid products formed in quenching were shown to consist of p‐cyclophane (acetone insoluble) and linear dimer, linear trimer and one immovable component (in TLC analysis) constituting the acetone‐soluble part. Their rates of formation in the quencher were experimentally determined. The kinetic model which was used to explain the rate data of p‐cyclophane formation (1) was extended to include the formation of linear dimer and trimer of p‐xylene. The rate expressions derived from the kinetic model were shown to be consistent with experimental results.