Chevron Research Company

Other

Chevron Limited

Louis deVries

John M King

P R Ryason

Porter R Ryason

This patent is concerned with a unique process for converting natural gas into hydrocarbons. More particularly, it concerns a novel combination of processing steps wherein the natural gas is first converted into syn gas, the hydrogen of which is reacted with carbon dioxide to produce a mixture of water and carbon monoxide which is then contacted with a metal catalyst to give a mixture of hydrocarbons.

Natural gas conversion to higher hydrocarbons

Disclosed is a continuous catalytic process for the production of higher molecular weight hydrocarbons from methane in which a methane-containing gas is contacted in a reaction zone with a higher molecular weight hydrocarbon synthesis catalyst under C.sub.2 +hydrocarbon synthesis conditions, the improvement comprising adding a C.sub.2 to C.sub.4 hydrocarbon and hydrogen to said gas thereby forming a reaction gas wherein said C.sub.2 to C.sub.4 hydrocarbon comprises 0.1 to 10 volume percent of said reaction gas and said hydrogen comprises 1 to 25 volume percent of said reaction gas, said synthesis conditions including a temperature greater than 1000.degree. C. and a gas hourly space velocity of greater than 3200 hr.sup.31 1.

Addition of hydrogen and C2 to C4 hydrocarbons to the feed gas in the

In a continuous catalytic process for the production of higher molecular weight hydrocarbons from methane in which a reaction gas containing methane is contacted in a reaction zone with a higher molecular weight hydrocarbon synthesis catalyst under C.sub.2 + hydrocarbon synthesis conditions, the improvement comprising adding a C.sub.2 to C.sub.4 hydrocarbon to the reaction gas such that said C.sub.2 to C.sub.4 hydrocarbon comprises 0.1 to 10 volume percent of the reaction gas, said reaction conditions including a temperature greater than 1000.degree. C. and a gas hourly space velocity of greater than 3200 hr.sup.-1.

Enhancing the reaction rate in high temperature, high space velocity

Disclosed is a catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons. More particularly, disclosed is a catalytic process for the conversion of methane to C.sub.2 + hydrocarbons, particularly hydrocarbons rich in ethylene or benzene, or both. The process utilizes a metal-containing catalyst, high reaction temperature of greater than 1000.degree. C., and a high gas hourly space velocity of greater than 3200 hr.sup.-1.

Conversions of low molecular weight hydrocarbons to higher molecular

In a continuous catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons in which a lower molecular weight hydrocarbon containing reaction gas is contacted in a reaction zone with a higher molecular weight hydrocarbon synthesis catalyst under C.sub.2 + hydrocarbon synthesis conditions, the improvement comprising increasing the production of higher molecular weight hydrocarbons by the addition of an effective amount of aluminum metal vapor to the reaction gas, said synthesis conditions including a temperature greater than 1000.degree. C. and a gas hourly space velocity of greater than 3200 hr.sup.-1.

Enhancing the production of higher molecular weight hydrocarbons from

Disclosed is a catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons. More particularly, disclosed is a catalytic process for the conversion of methane to C.sub.2+ hydrocarbons, particularly hydrocarbons rich in ethylene or benzene, or both. The process utilizes a metal-containing catalyst, high reaction temperature of greater than 1000.degree. C., and a high gas hourly space velocity of greater than 3200 hr.sup.-1.

Disclosed is a catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons. More particularly, disclosed is a catalytic process for the conversion of methane to C.sub.2 + hydrocarbons, particularly hydrocarbons rich in ethylene or benzene, or both. The process utilizes a boron compound containing catalyst, high reaction temperature of greater than 1000.degree. C., and a high gas hourly space velocity of greater than 3200 hr.sup.-1.

An antioxidant additive combination for lubricating oils is prepared by combining (a) a sulfur containing molybdenum compound prepared by reacting an ammonium tetrathiomolybdate, and a basic nitrogen compound, with (b) an organic sulfur compound.

Antioxidant combinations of molybdenum complexes and organic sulfur

An antioxidant additive combination for lubricating oils is prepared by combining (a) a sulfur containing molybdenum compound prepared by reacting an acidic molybdenum compound, a basic nitrogen compound, and carbon disulfide, with (b) an aromatic amine compound.

Antioxidant combinations of sulfur containing molybdenum complexes and

An antioxidant additive combination for lubricating oils is prepared by combining (a) a sulfur containing molybdenum compound prepared by reacting an acidic molybdenum compound, a basic nitrogen compound, and a sulfur compound, with (b) an aromatic amine compound.

Antioxidant combinations of molybdenum complexes and aromatic amine

An antioxidant additive combination for lubricating oils is prepared by combining (a) a sulfur containing molybdenum compound prepared by reacting an acidic molybdenum compound, a basic nitrogen compound, and a sulfur compound, with (b) an organic sulfur compound.

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Greenbrae, CA, United States of America

Louis deVries