TITLE: Stage and Development Possibilities of the Fischer-Tropsch-Synthesis for the Production of Primary Chemicals and Feedstocks.

AUTHOR: D. Frohning;   H. Koelbel;   W. Rottig;   F. Schnur;   H. Schulz.

INST.  AUTHOR: Ruhrchemie A.G., Oberhausen (West Germany).

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: National Aeronautics and Space Administration (NASA) [NASAE],  Dec 77,  103p.

NASA REPORT NO: 78n29581

ABSTRACT:

The manufacture of chemical feedstocks from synthesis gas via the modified Fischer-Tropsch Synthesis is being studied. The aim is the development of catalysts which allow, with improved selectivity, a direct conversion of carbon monoxide with hydrogen to short chain olefins (C2 to C4) and/or naphtha for chemical use. The possible modifications of known  process steps and catalysts are summarised in this study. The stage of development and the flexibility of the gasphase-fixed bed-entrained fluidised bed and the liquid phase-process are compared with one another with regard to present technical and economic demands. From this comparison, the synthesis of ethylene and propylene based on German brown coal, using conventional gasification and production technologies, is economic when the selectivity is approx. 50%.

REPORT  NUMBER: BMFT-FB-T-77-43