TITLE: New Catalysts for the Indirect Liquefaction of Coal. FinalTechnical Report.

AUTHOR: G. A. Melson.

INST.  AUTHOR: Virginia Commonwealth Univ., Richmond. Dept. of Chemistry.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1986,  29p.

NTIS ORDER NO.: DE86004248/INW

ABSTRACT:

During the past five years, a research program aimed at the development of supported metal catalysts that are both efficient and selective for the production of liquid (gasoline range) hydrocarbons from synthesis gas has been conducted. The work was divided into four tasks: (1) a procedure for the synthesis of potential catalysts containing highly dispersed, samll particle-sized transition metal compounds on oxide and zeolite supports was developed: (2) the chemical composition and physical characteristics of the prepared materials were determined; (3) the catalytic activity of the materials prepared was evaluated and compound with supported metal catalysts prepared by conventional procedures; and (4) correlations were made between the surface science of the catalysts and their ability to function as thermally stable, efficient and product selective catalysts for synthesis gas conversion. A summary of the completed research is presented in this report. From the work completed to data, the following conclusions may be drawn: (1) The extraction technique, using organometallic compounds, developed in our laboratory, produces supported metal catalysts that contain small particle-sized, highly-dispersed metal oxides. (2) The metal component particle size may be controlled by the application of specific pre-treatment conditions; the ability to control the particle size results in the ability to control product distribution during synthesis gas conversion. (3) Interaction between the metal and the support in a zeolite-supported metal catalyst is such that the Bronsted acidity of the support may be protected; the ability to protect the acid sites of the zeolite affords the opportunity for the production of liquid hydrocarbons containing high percentages of olefins and aromatics during synthesis gas conversion. 83 refs. (ERA citation 11:015808)

REPORT  NUMBER: DOE/PC/30228-T11

CONTRACT  NUMBER: FG22-80PC30228