TITLE: Hydrocarbon Preparation from Synthesis Gas or Methanol on Cobalt Base Catalysts.

AUTHOR: L. Makambo.

INST.  AUTHOR: Poitiers Univ. (France).

LANGUAGE: French

PUB.  TYPE: Technical Report

PUB.  COUNTRY: France

SOURCE: Department of Energy [DEE],  1983,  122p.

NTIS ORDER NO.: DE86752624/INW

ABSTRACT:

The effect of catalyst support in the Fischer-Tropsch synthesis with cobalt catalysts on alumina is examined. Improvement of selectivity for producing a fraction with a narrow molecular weight range is obtained with cobalt base catalysts deposited on microporous support, chain length distribution is related to porosity, small pore size gives short chain length. Hydrocarbons are synthetized from synthesis gas CO + H sub 2 or CoMn catalysts obtained from MnCo(CO) sub 9 . CoMn is ten times more active the Co only without modifications in hydrocarbon selectivity.  Methanol conversion with cobalt catalysts on alumina is also studied. Fischer-Tropch reaction mechanisms with these catalysts are given. (ERA citation 11:053702)

REPORT  NUMBER: FRNC-TH-2307