Global to push GA events into
skip to main content

Title: Alkali or alkaline earth metal promoted catalyst and a process for methanol synthesis using alkali or alkaline earth metals as promoters

The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a heterogeneous catalyst comprising reduced copper chromite impregnated with an alkali or alkaline earth metal. There is thus no need to add a separate alkali or alkaline earth compound. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100.degree.-160.degree. C. and the pressure range of 40-65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H.sub.2 /CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.
Inventors:
 [1];  [1];  [1]
  1. (Pittsburgh, PA)
Issue Date:
OSTI Identifier:
869732
Assignee:
University of Pittsburgh (Pittsburgh, PA) NETL
Patent Number(s):
US 5385949
Contract Number:
FG22-89PC89786
Research Org:
University of Pittsburgh (Pittsburgh, PA)
Country of Publication:
United States
Language:
English
Subject:
alkali; alkaline; earth; metal; promoted; catalyst; process; methanol; synthesis; metals; promoters; relates; novel; route; specifically; production; contacting; gas; relatively; mild; conditions; slurry; phase; heterogeneous; comprising; reduced; copper; chromite; impregnated; add; separate; compound; allows; occur; temperature; range; approximately; 100; degree; -160; pressure; 40-65; atm; produces; 90; syngas; conversion; pass; 95; selectivity; major; by-product; amount; easily; separated; methyl; formate; amounts; water; carbon; dioxide; dimethyl; produced; combination; capable; tolerating; fluctuations; ratio; deleterious; effect; reaction; rate; furthermore; tolerated; substantial; deactivation; pressure range; methyl formate; gas conversion; heterogeneous catalyst; slurry phase; reduced copper; relatively mild; reaction rate; temperature range; carbon dioxide; synthesis gas; alkaline earth; earth metal; catalyst comprising; earth metals; process produces; mild conditions; catalyst combination; easily separated; methanol synthesis; metal promoted; methanol selectivity; separated methyl; substantial catalyst; produces methanol; major by-product; major deleterious; novel route; earth compound; copper chromite; syngas conversion; tolerating fluctuations; catalyst deactivation; comprising reduced; deleterious effect; contacting synthesis; promoted catalyst; /518/999/