English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  Deactivation and Regeneration of Mn-Promoted Sulfated Zirconia Alkane Isomerization Catalysts: An In-Situ Spectroscopic Study

Klose, B. S., Jentoft, R. E., Ressler, T., Joshi, P., Trunschke, A., Schlögl, R., et al. (2004). Deactivation and Regeneration of Mn-Promoted Sulfated Zirconia Alkane Isomerization Catalysts: An In-Situ Spectroscopic Study. In S. Ernst, A. Jess, J. Lercher, M. Marchionna, P. Prinz, & E. Schwab (Eds.), Proceedings of the DGMK-Conference C4/C5-Hydrocarbons: Routes to higher value-added products (pp. 23-30). Hamburg, Germany: DGMK Deutsche Wissenschaftliche Gesellschaft für Erdöl, Erdgas und Kohle e.V.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-0E08-3 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-0E09-1
Genre: Conference Paper

Files

show Files
hide Files
:
klose-jentoft_dg25[1].11.04.pdf (Any fulltext), 419KB
View   Save
File Permalink:
https://hdl.handle.net/11858/00-001M-0000-0011-0E07-5
Name:
klose-jentoft_dg25[1].11.04.pdf
Description:
-
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
View
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Klose, Barbara S.1, Author           
Jentoft, Rolf E.1, Author           
Ressler, Thorsten1, Author           
Joshi, Pradnya1, Author           
Trunschke, Annette1, Author           
Schlögl, Robert1, Author           
Jentoft, Friederike C.1, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

Content

show
hide
Free keywords: low temperature alkane isomerization, deactivation, sulfated zirconia, manganese, in situ, diffuse reflectance, IR, UV–vis–NIR spectroscopy, XAFS, n butane Project 1: Acid-base & redox properties of promoted sulfated zirconia
 Abstract: Abstract Mn-promoted sulfated zirconia (0.5 or 2 wt% Mn) was investigated during activation (in inert or oxidizing atmosphere at 703–773 K), during n-butane isomerization (323–333 K, 1 kPa n-butane) and during regeneration (see activation conditions) using in situ UV–vis–NIR, diffuse reflectance IR, and X-ray absorption spectroscopies. While the activation atmosphere did not influence the degree of hydration and the state of the sulfate, manganese—which was always present as a mixture of Mn2+ and higher oxidation states—was slightly reduced in the absence of oxygen. Catalytic data did not give a clear picture as to whether activation in oxygen-containing atmosphere is advantageous or not. The catalysts deactivated within hours, but complete recovery in O2 was possible. Heating of a deactivated catalyst in N2 produced an inactive material and unsaturated compounds on the surface.

Details

show
hide
Language(s): eng - English
 Dates: 2004-10-122004
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 213984
 Degree: -

Event

show
hide
Title: DGMK International Conference C4/C5-Hydrocarbons: Routes to higher value-added products
Place of Event: Munich/Germany
Start-/End Date: 2004-10-13 - 2004-10-15

Legal Case

show

Project information

show

Source 1

show
hide
Title: Proceedings of the DGMK-Conference C4/C5-Hydrocarbons: Routes to higher value-added products
Source Genre: Proceedings
 Creator(s):
Ernst, S., Editor
Jess, A., Editor
Lercher, J.A., Editor
Marchionna, M., Editor
Prinz, P., Editor
Schwab, E., Editor
Affiliations:
-
Publ. Info: Hamburg, Germany : DGMK Deutsche Wissenschaftliche Gesellschaft für Erdöl, Erdgas und Kohle e.V.
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 23 - 30 Identifier: -

Source 2

show
hide
Title: DGMK Tagungsbericht
Source Genre: Series
 Creator(s):
DGMK, Editor  
Affiliations:
-
Publ. Info: -
Pages: - Volume / Issue: 2004-3 Sequence Number: - Start / End Page: - Identifier: -