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Title: Synthesis of higher alcohols over promoted copper catalysts

Abstract

A series of copper catalysts, promoted with 0.5% K/sub 2/CO/sub 3/, was prepared and tested for thermal stability by measuring the surface area after successive 20-h treatments in flowing hydrogen at 250, 275, 300, and 325/sup 0/C. Four of these catalysts and a commercial CuO/ZnO/Al/sub 2/O/sub 3/ catalyst were tested for activity and selectivity in the synthesis of higher alcohols from a 1H/sub 2/ + 2CO synthesis gas at 10.5 MPa and 285 to 325/sup 0/C. Two of these catalysts, CuO/ZnO/Cr/sub 2/O/sub 3/ and CuO/ZnO/ThO/sub 2/, had about the same initial activity as the commercial preparation. Catalysts which did not contain ZnO, namely, CuO/TiO/sub 2/ and CuO/ThO/sub 2/, were relatively inactive. The CuO/ZnO/ThO/sub 2/ and commercial catalysts lost activity and surface area at 325/sup 0/C, while the activity and surface area of the CuO/ZnO/Cr/sub 2/O/sub 3/ catalyst remained constant during 60 h onstream at the same temperature. The major alcohol products were methanol, 2-methyl-1-propanol, ethanol, and n-propanol and the selectivity to higher alcohols increased with increasing temperature. The C/sub 4/ alcohol selectivities of the catalysts containing ThO/sub 2/ at 325/sup 0/C were significantly larger than those of the other catalysts. The similar selectivities of these catalysts despite the marked differencemore » in their activities suggests that ThO/sub 2/ promotes the production of higher alcohols.« less

Authors:
;
Publication Date:
Research Org.:
McMaster Univ., Hamilton, Ontario
OSTI Identifier:
5456672
Resource Type:
Journal Article
Journal Name:
J. Catal.; (United States)
Additional Journal Information:
Journal Volume: 104:2
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 10 SYNTHETIC FUELS; COPPER OXIDES; CATALYTIC EFFECTS; ETHANOL; SYNTHESIS; METHANOL; POTASSIUM CARBONATES; PROPANOLS; ZINC OXIDES; ALUMINIUM OXIDES; CARBON MONOXIDE; CATALYST SUPPORTS; CATALYTIC REFORMING; CHROMIUM OXIDES; COMPARATIVE EVALUATIONS; DEACTIVATION; HYDROGEN; SURFACE AREA; SYNTHESIS GAS; THORIUM OXIDES; TITANIUM OXIDES; ACTINIDE COMPOUNDS; ALCOHOLS; ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CARBONATES; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; COPPER COMPOUNDS; ELEMENTS; FLUIDS; GASES; HYDROXY COMPOUNDS; NONMETALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; REFORMER PROCESSES; SURFACE PROPERTIES; THORIUM COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZINC COMPOUNDS; 010408* - Coal, Lignite, & Peat- C1 Processes- (1987-); 090221 - Alcohol Fuels- Chemical Synthesis- (1976-1989)

Citation Formats

Calverley, E M, and Anderson, R B. Synthesis of higher alcohols over promoted copper catalysts. United States: N. p., 1987. Web. doi:10.1016/0021-9517(87)90375-7.
Calverley, E M, & Anderson, R B. Synthesis of higher alcohols over promoted copper catalysts. United States. https://doi.org/10.1016/0021-9517(87)90375-7
Calverley, E M, and Anderson, R B. 1987. "Synthesis of higher alcohols over promoted copper catalysts". United States. https://doi.org/10.1016/0021-9517(87)90375-7.
@article{osti_5456672,
title = {Synthesis of higher alcohols over promoted copper catalysts},
author = {Calverley, E M and Anderson, R B},
abstractNote = {A series of copper catalysts, promoted with 0.5% K/sub 2/CO/sub 3/, was prepared and tested for thermal stability by measuring the surface area after successive 20-h treatments in flowing hydrogen at 250, 275, 300, and 325/sup 0/C. Four of these catalysts and a commercial CuO/ZnO/Al/sub 2/O/sub 3/ catalyst were tested for activity and selectivity in the synthesis of higher alcohols from a 1H/sub 2/ + 2CO synthesis gas at 10.5 MPa and 285 to 325/sup 0/C. Two of these catalysts, CuO/ZnO/Cr/sub 2/O/sub 3/ and CuO/ZnO/ThO/sub 2/, had about the same initial activity as the commercial preparation. Catalysts which did not contain ZnO, namely, CuO/TiO/sub 2/ and CuO/ThO/sub 2/, were relatively inactive. The CuO/ZnO/ThO/sub 2/ and commercial catalysts lost activity and surface area at 325/sup 0/C, while the activity and surface area of the CuO/ZnO/Cr/sub 2/O/sub 3/ catalyst remained constant during 60 h onstream at the same temperature. The major alcohol products were methanol, 2-methyl-1-propanol, ethanol, and n-propanol and the selectivity to higher alcohols increased with increasing temperature. The C/sub 4/ alcohol selectivities of the catalysts containing ThO/sub 2/ at 325/sup 0/C were significantly larger than those of the other catalysts. The similar selectivities of these catalysts despite the marked difference in their activities suggests that ThO/sub 2/ promotes the production of higher alcohols.},
doi = {10.1016/0021-9517(87)90375-7},
url = {https://www.osti.gov/biblio/5456672}, journal = {J. Catal.; (United States)},
number = ,
volume = 104:2,
place = {United States},
year = {1987},
month = {4}
}