View More View Less
  • 1 Universidade Técnica de Lisboa IBB, Institute for Biotechnology and Bioengineering, Centre for Biological and Chemical Engineering, Instituto Superior Técnico Av. Rovisco Pais 1049-001 Lisbon Portugal
  • | 2 UMR 6503 CNRS – Université de Poitiers Laboratoire de Catalyse en Chimie Organique 40 Avenue du Recteur Pineau 86022 Poitiers Cedex France
Restricted access

Abstract  

In this work, n-decane cracking, taken as a model reaction for the catalytic cracking of Fischer–Tropsch naphta fraction, was carried out at 350 °C over various H-Y zeolites, with different Si/Al ratios and, thus, different acid strength distributions. It was observed that the catalytic activity does not decrease gradually with the contact time for the catalysts under study, notably for the zeolite samples having lower activity (hence lower total acidity as well) but, in fact, the catalytic activity first increases with contact time and then decreases. This behavior was successfully interpreted by resorting to the fundamental view of the catalytic cracking mechanism as a series/parallel scheme. The authors combined the bi-molecular process involving a carbenium-chain mechanism and the protolytic process involving the formation of carbonium ions to construct a simple model to predict, in as much detail as possible, the zeolite catalytic performance of the different catalysts that were used.

Manuscript submission: www.editorialmanager.com/reac

  • Impact Factor (2019): 1.520
  • Scimago Journal Rank (2019): 0.345
  • SJR Hirsch-Index (2019): 39
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • SJR Quartile Score (2019): Q4 Catalysis
  • Impact Factor (2018): 1.142
  • Scimago Journal Rank (2018): 0.374
  • SJR Hirsch-Index (2018): 37
  • SJR Quartile Score (2018): Q3 Physical and Theoretical Chemistry
  • SJR Quartile Score (2018): Q3 Catalysis

For subscription options, please visit the website of Springer

Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation
1974
Volumes
per Year
3
Issues
per Year
6
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)