Development of alcohol-based synthetic transportation fuels from coal-derived synthesis gases. Third quarterly progress report, April 1-June 30, 1980
Fourteen catalysts were prepared by either evaporation of metal nitrate-citric acid solutions or by impregnation of inert supports with metal nitrate-citric acid solutions. Fourteen catalysts were tested in either the Berty gradientless reactor or the plug-flow reactor. These catalysts have been characterized intto the following five groups: Group I - catalysts containing Cu, Zn, Co, Cr and alkali; Group II - catalysts of Group I without Zn or Co or Cr; Group III - modified methanol synthesis catalysts of substituted by transition metals such as Fe, Mn, Ti, Th, etc; and Group V - catalysts of Groups I, II or IV supported on refractory cements such as silica or titania. Although none of the catalysts tested this quarter resulted in reaching the targetted oxygenates selectivities and space time yields, the following relevant observations were made: Transition metals in a catalyst having the general atomic formula CuZn/sub 0/ /sub 125/CoK/sub 0/ /sub 11/M and produced by evaporation of metal nitrate - citric acid solution affect oxygenates selectivity as indicated below (in descending order), Fe approx. Cr > V >> Mn; Potassium in a catalyst having the formula Cu Zn/sub 0/ /sub 125/CoA/sub 0/ /sub 11/ is a better alkali promoter than cesium; Impregnation of inert supports with metal nitrate - citric acid solutions reduced activity and oxygenates productivity in comparison to the unsupported catalyst; Mechanical blending of metal oxides for a CuZn/sub 0/ /sub 125/CoCrK/sub 0/ /sub 11/ results in better selectivity-conversion characteristics than coprecipitation or evaporation of nitrate-citric acid solutions. For a CuZn/sub 0/ /sub 125/CoCrK/sub 0/ /sub 11/ catalyst reduced in situ in the presence of CO and CO/sub 2/ - containing syn gas, there was more than a two-fold increase in oxygenates selectivity over the 43 hour run period.
- Research Organization:
- Chem Systems, Inc., Fairfield, NJ (USA)
- DOE Contract Number:
- AC22-79ET14858
- OSTI ID:
- 6747808
- Report Number(s):
- DOE/ET/14858-3
- Country of Publication:
- United States
- Language:
- English
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Development of alcohol-based synthetic transportation fuels from coal-derived synthesis gases. Fourth quarterly progress report, July 1-September 30, 1980
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Related Subjects
01 COAL, LIGNITE, AND PEAT
ALCOHOLS
SYNTHESIS
CATALYSTS
CHEMICAL PREPARATION
COMPARATIVE EVALUATIONS
SPECIFICITY
SYNTHESIS GAS
CHEMICAL REACTIONS
ALUMINIUM
CHEMICAL REACTORS
CHROMIUM
COBALT
COPPER
EXPERIMENTAL DATA
IRON
MANGANESE
RESEARCH PROGRAMS
SILICA
THORIUM
TITANIUM
ZINC
ACTINIDES
CHALCOGENIDES
DATA
ELEMENTS
FLUIDS
GASES
HYDROXY COMPOUNDS
INFORMATION
METALS
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
TRANSITION ELEMENTS
090221* - Alcohol Fuels- Chemical Synthesis- (1976-1989)
010404 - Coal
Lignite
& Peat- Gasification