Thermal and catalytic conversion of waste polyolefines

Citation
J. Walendziewski et M. Steininger, Thermal and catalytic conversion of waste polyolefines, CATAL TODAY, 65(2-4), 2001, pp. 323-330
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CATALYSIS TODAY
ISSN journal
0920-5861 → ACNP
Volume
65
Issue
2-4
Year of publication
2001
Pages
323 - 330
Database
ISI
SICI code
0920-5861(20010220)65:2-4<323:TACCOW>2.0.ZU;2-C
Abstract
Waste samples of polyethylene and polystyrene were cracked thermally or in the presence of catalyst and hydrogen in closed autoclaves. The obtained pr oducts were submitted to analysis, unsaturated hydrocarbons in gasoline and diesel fuel range boiling were hydrogenated over platinum catalyst. It was stated that the optimum thermal cracking temperature of waste polyolefines is 410-430 degreesC, in the case of catalytic process lower temperature, c a. 390 degreesC, can be used, with reaction time ca. 1.5 an hour. More than 90% yield of gas and liquid fractions with b.p. < 360<degrees>C was attain ed. The dependencies between process parameters, feed composition and produ ct yield as well as composition of the obtained fuel fractions were found. On the basis of the obtained results hypothetical continuous process of was te plastics processing for engine fuel production was presented. (C) 2001 E lsevier Science B.V. All rights reserved.