fulltext.study @t Gmail

A novel method for preparing well dispersed and highly sulfided NiW hydrodenitrogenation catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
50585 46803 2012 6 PDF Available
Title
A novel method for preparing well dispersed and highly sulfided NiW hydrodenitrogenation catalyst
Abstract

This article presents a novel method for preparing hydrodenitrogenation (HDN) catalysts via combined phosphorous modification of alumina and ethylenediaminetetraacetic acid (EDTA)-assisted dispersion of active metals. The results showed that the catalyst prepared with this method possessed high dispersion of nickel and tungsten species, ascribed to EDTA addition. Simultaneously, high sulfidation degree of tungsten and nickel species was obtained due to the addition of phosphorous and EDTA. So the catalyst prepared by this method exhibited a greatly enhanced hydrodenitrogenation activity than the conventional method prepared.

Graphical abstractTEM imagine of sulfided EDTANiW/P/Al2O3 catalyst.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new EDTANiW/P/Al2O3 catalyst for HDN was developed. ► The dispersion and sulfidation degree of NiW species were determined by XPS. ► The EDTANiW/P/Al2O3 catalyst exhibited excellent activity for quinoline HDN.

Keywords
EDTA; Phosphorus; HDN; Dispersion; Sulfidation
First Page Preview
A novel method for preparing well dispersed and highly sulfided NiW hydrodenitrogenation catalyst
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 23, 5 June 2012, Pages 48–53
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis