Shape selective catalysts for F-T chemistry. Interim report : January 2001 - December 2002.

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Argonne National Laboratory (ANL) is carrying out a research program to create, prepare, and evaluate catalysts to promote Fischer-Tropsch (F-T) chemistry, specifically the reaction of hydrogen with carbon monoxide to form long-chain hydrocarbons. In addition to F-T catalysts needing high activity, it is desirable that they have high selectivity and stability with respect to both mechanical strength and aging properties. In this project, selectivity is directed toward the production of diesel fraction components and avoiding excess yields of both light hydrocarbons and heavy waxes. Shape-selective catalysts have the potential to both limit the formation of long-chain products and yet retain ... continued below

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8 pages

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Cronauer, D. C. January 29, 2003.

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Description

Argonne National Laboratory (ANL) is carrying out a research program to create, prepare, and evaluate catalysts to promote Fischer-Tropsch (F-T) chemistry, specifically the reaction of hydrogen with carbon monoxide to form long-chain hydrocarbons. In addition to F-T catalysts needing high activity, it is desirable that they have high selectivity and stability with respect to both mechanical strength and aging properties. In this project, selectivity is directed toward the production of diesel fraction components and avoiding excess yields of both light hydrocarbons and heavy waxes. Shape-selective catalysts have the potential to both limit the formation of long-chain products and yet retain the active metal sites in a protected ''cage.'' This cage also restricts their loss by attrition during use in slurry-bed reactors. Experimentation has included evaluation of samples of (1) iron-based F-T catalysts prepared at Argonne National Laboratory, (2) iron-based F-T catalysts prepared by B.H. Davis of the Center of Applied Energy Research (CAER), (3) the Davis catalyst that were sized by differential gravity separation, and (4) the Davis catalyst onto which inorganic or catalytic ''shells'' were deposited. The ANL-prepared samples had a wide range of particle size and were irregular in shape. A sizeable portion of the samples provided by Davis were spherical, because they had been prepared by spray-drying. To compare the catalytic activities of the samples, we used a micro-scale fixed-bed reactor system for F-T runs of low conversion to avoid thermal and mass transfer effects. In summary, the highest activity was that of the original Davis catalyst; additional research must be carried out to generate more permeable surface cages. A number of approaches that have been published for other applications will be tested.

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8 pages

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  • Other Information: PBD: 29 Jan 2003

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  • Report No.: ANL/CMT/RP-109609
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/809173 | External Link
  • Office of Scientific & Technical Information Report Number: 809173
  • Archival Resource Key: ark:/67531/metadc737264

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 29, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • March 29, 2016, 9:13 p.m.

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Cronauer, D. C. Shape selective catalysts for F-T chemistry. Interim report : January 2001 - December 2002., report, January 29, 2003; Illinois. (digital.library.unt.edu/ark:/67531/metadc737264/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.