Journal
CATALYSIS TODAY
Volume 98, Issue 1-2, Pages 3-18Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2004.07.048
Keywords
refractory sulfur compounds; HDS kinetics and catalysis; transition metal sulfides; process modeling; deep HDS process
Ask authors/readers for more resources
The sulfur specification for diesel fuel has been tightened exponentially over the years. In the near future, the specification will go down below 10 ppmw or less. A fundamental question then is whether the goal of reaching such ultralow sulfur regime will scale exponentially in difficulty. To help answer this question, this paper aims to identify limiting factors bearing on the chemistry and catalysis in this regime. The emphasis is on low-pressure operation. Among the topics discussed are: reactivity-property relationships, catalyst functionalities, inhibiting effects, poisoning dynamics, nature of active sites, and bulk transition metal sulfides. It is shown that certain bulk metal sulfides are intrinsically active and selective for desulfurizing 4-substituted and 4,6-disubstituted dibenzothiophenes. (C) 2004 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available