fulltext.study @t Gmail

Aromatics reduction of pyrolysis gasoline (PyGas) over HY-supported transition metal catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
43848 45991 2006 13 PDF Available
Title
Aromatics reduction of pyrolysis gasoline (PyGas) over HY-supported transition metal catalysts
Abstract

The hydrodearomatization of pyrolysis gasoline (PyGas) over bifunctional catalysts, based on noble metals (Pt, Pd, Ir, Ni) supported on a HY zeolite, has been studied in a fixed-bed reactor. The surface structures of the catalysts were determined by CO chemisorption, photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR) and temperature-programmed desorption of H2 (H2-TPD). Catalyst acidity was assessed by ammonia desorption measured by differential scanning calorimetry (DSC-NH3) and Fourier transform infrared spectroscopy of adsorbed pyridine (FTIR-Py). The kinetic performance and product selectivity of the catalysts were discussed in terms of the data provided by surface characterization techniques. Kinetic interpretation was carried out by using individual step conversion, i.e. hydrogenation and ring-opening. The results under mild ring-opening (MRO) conditions indicate a strong dependence of the hydrogenation activity on the metal used. Operating under severe ring-opening (SRO) conditions, a linear dependency of conversion and n-alkane yield on total acidity of the catalyst was observed.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Hydrodearomatization; Ring-opening; Hydrotreatment; Pyrolysis gasoline; Transition metal bifunctional catalysts; HY zeolite
First Page Preview
Aromatics reduction of pyrolysis gasoline (PyGas) over HY-supported transition metal catalysts
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 315, 23 November 2006, Pages 101–113
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us