Oxygenated octane enhancers: Syngas to isobutylene. Technical progress report No. 18, July 1, 1995--September 30, 1995

PDF Version Also Available for Download.

Description

The goals of this project are to develop a catalyst and process for the conversion of syngas to isobutanol. The research will identify and optimize key catalyst and process characteristics. In addition, the commercial potential of the new process will be evaluated by an economic analysis. The combination of the best conditions from independent process variable studies has afforded the best performance to date with the 2% Pt on Zn/Mn/Zr oxide catalyst. At 325{degrees}C, 300 psig, 7/1 MeOH/EtOH molar feed ratio and 1 hr{sup {minus}1} MEOH WH 22.20% selectivity to isobutanol is obtained with 55 and 97% conversions of methanol ... continued below

Physical Description

13 p.

Creation Information

Barger, P.T. & Spehlmann, B.C. March 28, 1996.

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.

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

The goals of this project are to develop a catalyst and process for the conversion of syngas to isobutanol. The research will identify and optimize key catalyst and process characteristics. In addition, the commercial potential of the new process will be evaluated by an economic analysis. The combination of the best conditions from independent process variable studies has afforded the best performance to date with the 2% Pt on Zn/Mn/Zr oxide catalyst. At 325{degrees}C, 300 psig, 7/1 MeOH/EtOH molar feed ratio and 1 hr{sup {minus}1} MEOH WH 22.20% selectivity to isobutanol is obtained with 55 and 97% conversions of methanol and ethanol, respectively. The results of this run will be used as a basis for the economic evaluation of a higher alcohols process. The ability of the Pt on Zn/Mn/Zr oxide catalyst to produce isobutanol in the presence of high partial pressures of H{sub 2} has been investigated. Such operation could allow the integration of a higher alcohol process with a conventional methanol synthesis plant by placing it within the methanol synthesis recycle loop. However, higher alcohol yields are severely suppressed by a large H{sub 2} cofeed, even at pressures as low as 50 psig. Elimination of the H{sub 2} co-feed did not restore the performance of the catalyst to expected levels, suggesting that the high H{sub 2} partial pressure has caused degradation of the catalyst. No further testing of high H{sub 2} conditions is planned. The commercial system has been modeled using the product slate obtained from the ``best case`` pilot plant conditions combined with the assumption of equilibrium CO, H{sub 2}O, CO{sub 2} and H{sub 2} makes. A stand-alone isobutanol plant processing 500 MT/D synthesis gas-derived methanol can yield 92 MT/D isobutanol and additional 20 MT/D assuming complete hydrogenation of isobutyraldehyde which accumulates in the liquid recycle loop. The economic analyses of this system are pending.

Physical Description

13 p.

Notes

OSTI as DE96011742

Source

  • Other Information: PBD: 28 Mar 1996

Language

Item Type

Identifier

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

  • Other: DE96011742
  • Report No.: DOE/PC/90042--T19
  • Grant Number: AC22-91PC90042
  • DOI: 10.2172/249207 | External Link
  • Office of Scientific & Technical Information Report Number: 249207
  • Archival Resource Key: ark:/67531/metadc667677

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

  • March 28, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

Description Last Updated

  • Jan. 14, 2016, 6:17 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

Barger, P.T. & Spehlmann, B.C. Oxygenated octane enhancers: Syngas to isobutylene. Technical progress report No. 18, July 1, 1995--September 30, 1995, report, March 28, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc667677/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.