fulltext.study @t Gmail

The effect of Ga and Zn over HZSM-5 on the transformation of palm fatty acid distillate (PFAD) to aromatics

Paper ID Volume ID Publish Year Pages File Format Full-Text
49255 46730 2016 6 PDF Available
Title
The effect of Ga and Zn over HZSM-5 on the transformation of palm fatty acid distillate (PFAD) to aromatics
Abstract

•The reaction pathway of converting PFAD to aromatics was proposed.•The promotion of both Ga and Zn in HZSM-5 resulted in higher aromatics yield.•Zn/HZSM-5 exhibited superior activity due to the presence of two Zn species.

The catalytic conversion of PFAD (palm fatty acid distillate) to aromatics has been studied over HZSM-5, Ga/HZSM-5, and Zn/HZSM-5 catalysts. The presence of both Ga and Zn promoted the aromatization of PFAD. The higher aromatics yield of Zn/HZSM-5 was achieved by the presence of two zinc species; exchanged Zn2 + promoting the dehydrogenation of paraffins and ZnO promoting the decarboxylation of oxygenates. The shifting from decarbonylation over the Brønsted acid site of the parent HZSM-5 to decarboxylation over ZnO preserved the Brønsted acid site for aromatization, thus increasing the aromatics yield.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Reaction pathway; Zn/HZSM-5; Ga/HZSM-5; PFAD; Aromatics
First Page Preview
The effect of Ga and Zn over HZSM-5 on the transformation of palm fatty acid distillate (PFAD) to aromatics
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 74, 10 January 2016, Pages 49–54
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis