TITLE: Direct Synthesis of 2-Methyl-1-Propanol/Methanol Fuels and Feedstocks: Quarterly Technical Progress Report, December 1986-February 1987.

AUTHOR: K. Klier;   R. G. Herman;   G. W. Simmons;   C. E. Bogdan.

INST.  AUTHOR: Lehigh Univ., Bethlehem, PA.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  Nov 87,  39p.

NTIS ORDER NO.: DE89008265/INW

ABSTRACT:

The extended stability tests of the 0.4 mol% cesium formate promoted copper-zinc oxide catalyst have been performed under synthesis conditions predicted by the five parameter kinetic model as previously reported. An initial test of 500 hours in duration showed sustained activity and selectivity up to 250 hours after which changes in selectivity were followed by deactivation. A repeat test has shown that the absence of adequate, new charcoal traps causes the same selectivity changes and deactivation to occur from start of testing. Complete analysis of the catalysts after testing has been performed to determine the cause of the selectivity changes and deactivation. Results indicate that the cause of the problems is related to iron contamination. Iron deposition on the catalyst surface leads to Fischer-Tropsch centers that form waxes under the present reaction conditions and block the active sites for C1 -C4 alcohol synthesis. 14 figs., 4 tabs. (ERA citation 14:019452)

REPORT  NUMBER: DOE/PC/70021-9

CONTRACT  NUMBER: AC22-84PC70021