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Unsupported transition metal sulfide catalysts: From fundamentals to industrial application

Paper ID Volume ID Publish Year Pages File Format Full-Text
43915 45995 2007 9 PDF Available
Title
Unsupported transition metal sulfide catalysts: From fundamentals to industrial application
Abstract

In the open literature, there are numerous papers related to the chemical and physical properties of unsupported transition metal sulfides. Besides characterization studies, the performance of a large variety of mono-, bi- and multi-metallic materials in various test reactions has been examined. The performance studies identified several unsupported materials with higher activity and/or selectivity than the traditional γ-Al2O3 supported Ni/Co–Mo/W catalysts. This has resulted in numerous patents disclosing the preparation of unsupported transition metal sulfides and their use as hydroprocessing catalysts. However, for several reasons (high price and too high activity for existing refinery process equipment), the commercial use of unsupported catalysts in refinery processes has so far been limited to the NEBULA® catalysts. Catalysts based on NEBULA technology provide unprecedented activity for hydrodesulfurization (HDS), hydrodenitrogenation (HDN) and aromatics saturation (HDA).

Keywords
Transition metal sulfides; Hydrotreating; Unsupported/bulk catalysts; Commercial application
First Page Preview
Unsupported transition metal sulfide catalysts: From fundamentals to industrial application
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 322, 16 April 2007, Pages 58–66
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis