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High-Pressure Sulfidation of Hydrotreating Catalysts:Genesis and Properties of the Active Phase ePub download

by Achim Iulian Dugulan

  • Author: Achim Iulian Dugulan
  • ISBN: 158603863X
  • ISBN13: 978-1586038632
  • ePub: 1493 kb | FB2: 1373 kb
  • Language: English
  • Category: Engineering
  • Publisher: IOS Press (April 15, 2008)
  • Pages: 176
  • Rating: 4.5/5
  • Votes: 922
  • Format: doc mbr lrf rtf
High-Pressure Sulfidation of Hydrotreating Catalysts:Genesis and Properties of the Active Phase ePub download

The main objective of High-Pressure Sulfidation of Hydrotreating Catalysts is to understand the effect of the sulfidation . IOS Press c/o Accucoms US, Inc. For North America Sales and Customer Service West Point Commons Suite 201 Lansdale PA 19446 USA Tel.

The main objective of High-Pressure Sulfidation of Hydrotreating Catalysts is to understand the effect of the sulfidation pressure on the active phase structure in CoMo and NiW catalysts. The influence of the sulfidation pressure on the structure and activity of calcined CoMo/Al2O3 catalysts were examined through multiple experiments: to better understand the influence of calcinations conditions on the performance of CoMo/Al2O3 catalysts, a set of uncalcined catalysts with different Co/Mo ratios is investigated.

High-Pressure Sulfidat. by Achim Iulian Dugulan. See a Problem? We’d love your help. Details (if other): Cancel. Thanks for telling us about the problem. Not the book you’re looking for?

In hydrotreating sulfur, nitrogen, oxygen and metal atoms are removed from the different petroleum streams . The main objective of the present study was to understand the effect of the sulfidation pressure on the active phase structure in CoMo and NiW catalysts.

In hydrotreating sulfur, nitrogen, oxygen and metal atoms are removed from the different petroleum streams and unsaturated hydrocarbons are hydrogenated. The main reasons for refineries to perform hydrotreating are of environmental and economic nature. Besides protection of downstream catalysts from poisoning by sulfur, stringent environmental legislation has been aimed at the reduction of sulfur oxide emissions from fuel combustion.

genesis and properties of the active phase. Hydrotreating catalysts, Phase-transfer catalysis, Sulfidation. There's no description for this book yet. Published 2008 by IOS Press/Delft University Press in Amsterdam. Based on the author's Ph. D. thesis. Includes bibliographical references. 166 p. : Number of pages.

Achim Iulian Dugulan. Download PDF book format. Hydrotreating catalysts Sulfidation Phase-transfer catalysis. Choose file format of this book to download: pdf chm txt rtf doc. Download this format book. High-pressure sulfidation of hydrotreating catalysts : genesis and properties of the active phase Achim Iulian Dugulan. Download now High-pressure sulfidation of hydrotreating catalysts : genesis and properties of the active phase Achim Iulian Dugulan. Download DOC book format. by Colin and Jacqui Hawkins.

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The administration of the site is not responsible for the content of the site. The data of catalog based on open source database. All rights are reserved by their owners. Download book High-pressure sulfidation of hydrotreating catalysts : genesis and properties of the active phase, Achim Iulian Dugulan.

Active Phases for Hydrotreating gle Scholar

Dugulan, High Pressure Sulfidation of Hydrotreating Catalysts – Genesis and Properties of the Active Phase, Delft University Press (IOS Press, 2008)Google Scholar. Active Phases for Hydrotreating gle Scholar. N. Frizi, P. Blanchard, E. Payen, P. Baranek, C. Lancelot, M. Rebeilleau, C. Dupuy, . Today 130, 32–40 (2008)CrossRefGoogle Scholar.

A model describing the evolution of the active phase during the catalyst life is. .A geometrical model of the active phase of hydrotreating catalysts.

A model describing the evolution of the active phase during the catalyst life is proposed. XPS measurements showed that the alumina surface was not uniformly covered, probably due to diffusion limitations of the carbon forming hydrocarbons.

One of the most commonly used hydrotreating catalysts is CoMo-type . Gas phase of JP-8 light fraction was investigated over CoMo/Al2O3 and NiMo/Al2O3 catalysts.

One of the most commonly used hydrotreating catalysts is CoMo-type catalyst which is composed of molybdenum disulfide slabs promoted by cobalt atoms (CoMoS phase) and well dispersed on a high specific area alumina. As far as the highest sulfur content allowed in gasoline and diesel is continually decreasing, more and more efficient and active hydrotreating catalysts are required. At last, it leaded to the proposal of a mechanism for the sulfidation of the catalyst.

Chevrel phase HDS catalysts: structural and compositional relationships to.A history of the development of high-metals hydrotreating catalysts

Chevrel phase HDS catalysts: structural and compositional relationships to catalytic activity (. A history of the development of high-metals hydrotreating catalysts. The use of crystallographic concepts in catalyst design (.

The main objective of High-Pressure Sulfidation of Hydrotreating Catalysts is to understand the effect of the sulfidation pressure on the active phase structure in CoMo and NiW catalysts. The influence of the sulfidation pressure on the structure and activity of calcined CoMo/Al2O3 catalysts were examined through multiple experiments: to better understand the influence of calcinations conditions on the performance of CoMo/Al2O3 catalysts, a set of uncalcined catalysts with different Co/Mo ratios is investigated. Also the applicability of the Co-Mo-S structural model and the stability of the Co-containing phases for carbon-supported catalysts activated under high-pressure conditions were evaluated. Nitrilotriacetic acid (NTA) and phosphorus containing CoMo catalysts are examined to better comprehend the influence of high-pressure sulfidation of CoMo/Al2O3 catalysts prepared via non-conventional routes. Furthermore, an attempt is made to understand the strongly varying DBT HDS activities among the various catalysts presented in earlier chapters. Also, it is described how the sulfidation of Al2O3- and amorphous-silica-alumina-supported NiW catalysts under conditions relevant to industrial practice using W. Masbauer spectroscopy for the first time. Overall, two major factors influencing the HDS activities of CoMo hydrotreating catalysts are identified: the significant formation of CoSx structures in catalysts with weak metal-support interaction and the existence of a continuum of Type I/II Co-Mo-S structures, where the fully Type II end member is more difficult to reach than previously suspected.

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