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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--160 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:
; ;
Issue Date:
OSTI Identifier:
6622465
Assignee:
Univ. of Pittsburgh, PA (United States) PTO; EDB-95-034940
Patent Number(s):
US 5385949; A
Application Number:
PPN: US 8-022821
Contract Number:
FG22-89PC89786
Resource Relation:
Patent File Date: 24 Feb 1993
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 01 COAL, LIGNITE, AND PEAT; ALKALI METALS; CATALYTIC EFFECTS; ALKALINE EARTH METALS; CARBON MONOXIDE; METHANATION; CHROMIUM OXIDES; COPPER OXIDES; METHANOL; SYNTHESIS; CHEMICAL REACTION YIELD; PROMOTERS; ALCOHOLS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; COPPER COMPOUNDS; ELEMENTS; HYDROXY COMPOUNDS; METALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YIELDS 100200* -- Synthetic Fuels-- Production-- (1990-); 010408 -- Coal, Lignite, & Peat-- C1 Processes-- (1987-)