Liquefaction of coals using ultra-fine particle, unsupported catalysts: In situ generation by rapid expansion of supercritical fluid solutions Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.


  • Main Title Liquefaction of coals using ultra-fine particle, unsupported catalysts: In situ generation by rapid expansion of supercritical fluid solutions


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: DOE; USDOE, Washington, DC (United States)


  • Name: Textron, Inc., Everett, MA (United States). Textron Defense Systems
    Place of Publication: United States


  • Creation: 1991-09-01


  • English


  • Content Description: The program objective is to generate ultra-fine catalyst particles (20 to 400 {Angstrom} in size) and quantify their potential for improving coal dissolution in the solubilization stage of two-stage catalytic-catalytic liquefaction systems. In the first quarterly report for this program the concept behind our approach was detailed, the structure of the program was presented, key technical issues were identified, preliminary designs were outlined, and technical progress was discussed. All progress made during the second quarter of this program related to experiment design of the proposed supercritical expansion technique for generating ultra-fine, iron compound, catalyst particles. This second quarterly report, therefore, presents descriptions of the final designs for most system components; diagnostic approaches and designs for determining particles size and size distributions, and the composition of the pre-expansion supercritical solution; and the overall technique progress made during this reporting period. 6 refs., 15 figs., 1 tab.
  • Physical Description: Pages: (66 p)


  • Keyword: Flowsheets
  • Keyword: Solutions
  • Keyword: Thermochemical Processes
  • STI Subject Categories: 01 Coal, Lignite, And Peat
  • Keyword: Iron Compounds
  • Keyword: Progress Report
  • Keyword: Catalysts
  • Keyword: Document Types
  • Keyword: Transition Element Compounds 010405* -- Coal, Lignite, & Peat-- Hydrogenation & Liquefaction
  • Keyword: Dispersions
  • Keyword: Supercritical State
  • Keyword: Chemical Preparation
  • Keyword: Mixtures
  • Keyword: Coal Liquefaction
  • Keyword: Liquefaction
  • Keyword: Particle Size
  • Keyword: Synthesis
  • Keyword: Size
  • Keyword: Diagrams


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Other: DE92015949
  • Report No.: DOE/PC/90053-T2
  • Grant Number: AC22-90PC90053
  • DOI: 10.2172/5063777
  • Office of Scientific & Technical Information Report Number: 5063777
  • Archival Resource Key: ark:/67531/metadc1055388


  • Display Note: OSTI; NTIS; GPO Dep.