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U.S. Department of Energy
Office of Scientific and Technical Information

Optimum catalytic process for alcohol fuels from syngas: Third quarterly technical progress report, July-September 1987. [Goal: production of more higher alcohols at low pressure]

Technical Report ·
OSTI ID:5494768
Investigations on the novel low-pressure methanol homologation system have continued; in particular, the direct conversion of syngas to alcohols using promoted ruthenium catalysts. Our goal is to improve the behavior of the catalyst so that a product containing a substantial amount of higher alcohols (C/sub 2+/ alcohols) can be produced at low pressures. Earlier, we found that the addition of two specific catalyst additives increased the activity of the ruthenium/I/sup -/ catalyst system, and at the same time increased the production of C/sub 2+/ alcohols significantly. We have now found that higher activity can be achieved by using a similar replacement for one of these additives, and by using LiI as the iodide source. This system is relatively active at a pressure of 3000 psi and 230/sup 0/C, with a rate to products of 4.6 M/h and a selectivity to C/sub 2+/ alcohols of 26%. We have continued work on the heterogeneously catalyzed system based on alkali-loaded molybdenum sulfide and cobalt-molybdenum sulfide catalysts. 7 figs., 10 tabs.
Research Organization:
Union Carbide Corp., South Charleston, WV (USA). Engineering, Manufacturing and Technology Services Div.
DOE Contract Number:
AC22-86PC90013
OSTI ID:
5494768
Report Number(s):
DOE/PC/90013-T3; ON: DE88005300
Country of Publication:
United States
Language:
English