Isobutanol-methanol mixtures from synthesis gas. Quarterly technical progress report, April 1, 1995--June 30, 1995

PDF Version Also Available for Download.

Description

Three types of catalytic materials for alcohol coupling and isobutanol synthesis reactions have been prepared and characterized by BET surface area and x-ray diffraction methods. The materials consist of (1) modified low-temperature methanol synthesis catalysts and their constitutive components, (2) high temperature isobutanol synthesis catalysts consisting of Nb-Zn-Zr mixed oxides promoted with Cu, and (3) high surface area basic oxides prepared from hydrotalcite precursors and active in alcohol coupling reactions. Mechanistic and kinetic studies of methanol and ethanol coupling reactions using labeled compounds have shown that the reaction proceeds via an intermediate dehydrogenation reaction that form aldehydic intermediates. Ethanol is ... continued below

Physical Description

30 p.

Creation Information

Iglesia, E. July 24, 1995.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

Three types of catalytic materials for alcohol coupling and isobutanol synthesis reactions have been prepared and characterized by BET surface area and x-ray diffraction methods. The materials consist of (1) modified low-temperature methanol synthesis catalysts and their constitutive components, (2) high temperature isobutanol synthesis catalysts consisting of Nb-Zn-Zr mixed oxides promoted with Cu, and (3) high surface area basic oxides prepared from hydrotalcite precursors and active in alcohol coupling reactions. Mechanistic and kinetic studies of methanol and ethanol coupling reactions using labeled compounds have shown that the reaction proceeds via an intermediate dehydrogenation reaction that form aldehydic intermediates. Ethanol is much more reactive than methanol because it forms a more thermodynamically stable acetaldehyde intermediate with kinetically available aldol condensation pathways for the formation of higher oxygenates. The presence of Cs in this catalysts decreases dehydrogenation rates but prevents the decomposition of methanol and ethanol to CO and H{sub 2}.

Physical Description

30 p.

Notes

OSTI as DE96004237

Source

  • Other Information: PBD: 24 Jul 1995

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE96004237
  • Report No.: DOE/PC/94066--T3
  • Grant Number: AC22-94PC94066
  • DOI: 10.2172/172086 | External Link
  • Office of Scientific & Technical Information Report Number: 172086
  • Archival Resource Key: ark:/67531/metadc670780

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • July 24, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

Description Last Updated

  • Dec. 1, 2015, 4:21 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 2

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Iglesia, E. Isobutanol-methanol mixtures from synthesis gas. Quarterly technical progress report, April 1, 1995--June 30, 1995, report, July 24, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc670780/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.