TITLE: New Catalysts for the Indirect Liquefaction of Coal. Quarterly Technical Report, November 1, 1982-January 31, 1983.

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],  1983,  25p.

ABSTRACT:

Some ZSM-5 supported ruthenium (Ru/ZSM-5) catalysts have been prepared and characterized. The catalysts were prepared from Ru sub 3 (CO) sub 12 and the acid form of ZSM-5 by the extraction procedure. Characterization of the catalysts has been achieved by using infrared spectroscopy, x-ray powder diffractometry, x-ray photoelectron spectroscopy, ion-scattering spectrometry and chemisorption. The chemical composition of the catalysts has been identified. It was determined that complete decomposition of the Ru sub 3 (CO) sub 12 did not occur during the preparation procedure; however, calcination of the sample did cause the decomposition of the Ru sub 3 (CO) sub 12 structure and agglomeration of the metal species. The metal species was determined to be RuO sub 2 for the AP and H-500 samples with particle sizes of less than 60 A for the AP catalysts and greater than 60 A for the H-500 catalysts. Therefore, the extraction technique produces a high degree of dispersion of the metal species on the AP catalyst. The characterization by ESCA indicated that the used catalysts did not have compete reduction of the metal species during the catalytic evaluation; because both Ru exp 0 and RuO sub 2 species were detected. (ERA citation 08:038587)

REPORT  NUMBER: DOE/PC/30228-T9

CONTRACT  NUMBER: FG22-80PC30228