Upgrading synthesis gas
AssigneeThe Standard Oil Company
InventorsFrederick A. Pesa, Anne M. Graham
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Abstract
A process is provided for the upgrading of synthesis gas to hydrocarbons and oxygenated hydrocarbons, particularly olefins and carboxylic acids by contacting synthesis gas with catalysts comprising the mixed oxides of ruthenium, copper, an alkali or alkaline earth metal, and optionally a metal selected from Ce, Cr, Fe, Mn, Mo, Th, Zn or mixtures thereof. The synthesis gas upgrading product may be contacted with a hydrogenation catalyst to provide alkanes, alcohols and esters, useful for fuels.
Claims44
A process for the upgrading of synthesis gas to obtain selectivity to olefins and carboxylic acids comprising contacting carbon monoxide and hydrogen in the vapor phase at a reaction temperature of at least 250.degree. C. and a reaction pressure of at least 500 psi with a catalyst of the formula
- M.sub.a A.sub.b RuCu.sub.c N.sub.z O.sub.x
- wherein
- A is an alkali metal or an alkaline earth metal or mixtures thereof,
- wherein
- M is Ce, Cr, Fe, Mn, Mo, Zn or mixtures thereof, and
- wherein
- a is 0 to about 0.5
- b is about 0.002 to about 2,
- c is about 0.5 to about 3,
- z is 0 to about 1 weight percent and
- x is the number of oxygens needed to fulfill the valence requirements of the other elements.
A process for the upgrading of synthesis gas to yield hydrocarbons, alcohols and esters useful for fuel, comprising contacting carbon monoxide and hydrogen in the vapor phase at a temperature of at least 250.degree. C. and a pressure of at least 500 psi in the presence of the catalyst of the formula
- M.sub.a A.sub.b RuCu.sub.c N.sub.z O.sub.x
- wherein
- A is an alkali metal or an alkaline earth metal or a mixture thereof,
- wherein
- M is Ce, Cr, Fe, Mn, Mo, Zn or mixtures thereof, and
- wherein
- a is 0 to about 0.5,
- b is about 0.002 to about 2,
- c is about 0.5 to about 3,
- z is 0 to about 1 weight percent and
- x is the number of oxygens needed to fulfill the valence requirements of the other elements;
- recovering the resulting hydrocarbon and oxygenated hydrocarbon products;
- contacting said products with hydrogen at elevated temperature and pressure in the presence of a hydrogenation catalyst.
A process for producing a hydrocarbon mixture comprising predominantly olefins and carboxylic acids, said process comprising contacting a gaseous reactant containing carbon monoxide and hydrogen with a catalyst of the formula
- A.sub.b RuCu.sub.c N.sub.z O.sub.x
- wherein
- A is an alkali metal or an alkaline earth metal or mixture thereof, and
- wherein
- b is about 0.002 to about 2,
- c is about 0.5 to about 3,
- z is 0 to about 1 weight percent and
- x is the number of oxygens needed to fill the valence requirements of the other elements.
A process for producing a mixture of alkanes, esters and alcohols suitable for admixture with a fuel comprising
- contacting a gaseous reactant containing carbon monoxide and hydrogen with a ruthenium-copper complex catalyst of the formula
- A.sub.b RuCu.sub.c N.sub.z O.sub.x
- wherein
- A is an alkali metal or an alkaline earth metal or a mixture thereof, and
- wherein
- b is about 0.002 to about 2,
- c is about 0.5 to about 3,
- z is 0 to about 1 weight percent and
- x is the number of oxygens needed to fill the valence requirements of the other elements:
- recovering the resulting product;
- contacting said product with hydrogen at elevated temperature and pressure in the presence of a hydrogenation catalyst.
Dependencies are inferred from the claim text.