Abstract: A process for converting or synthesizing hydrocarbons from carbon sulfides such as CS.sub.2 by catalytic hydrogenation over catalysts such ZSM-5 type zeolites.

Abstract: A process for the conversion of alcohols and/or ethers to diesel fuel hydrocarbon mixtures comprising contacting alcohols and/or ethers with large pore zeolites, such as rare-earth Y aluminosilicate under elevated pressures and temperatures below about 600.degree. F.

Abstract: The conversion of synthesis gas comprising hydrogen and carbon oxides to form oxygenate-containing mixtures which are limited compositionally in being virtually free of C.sub.11 + compounds, with a zeolite which is virtually free of acid sites and characterized by a silica to alumina mole ratio of at least about 12 and a constraint index within the range of 1 to 12, having intimately combined therewith a metal selected from the group consisting of rhodium, platinum, palladium and iridium.

Abstract: A process for the preparation of aniline by reaction of alicyclic alcohols or ketones with ammonia in the presence of a crystalline silicate catalyst having the structure of ZSM-5. Especially preferred alicyclic charge stocks are the mononuclear naphthenic type compounds such as cyclohexanol and cyclohexanone or mixtures thereof.

Abstract: A method is disclosed for converting synthesis gas to hydrocarbons enriched in linear alpha-olefins which involves the use of a ZSM-5 type zeolite which is substantially catalytically inert and onto which is deposited a carbon oxide reducing component including Fischer-Tropsch type catalysts, such as iron, cobalt and ruthenium.

Abstract: A process for converting phenolic compounds to aniline by passing them over ammonia in the presence of ZSM-5 type zeolites under conversion conditions whereby high conversion, high selectivity and improved rates of production are achieved.

Abstract: The conversion of synthesis gas comprising hydrogen and carbon oxides to form oxygenate-containing mixtures which are limited compositionally in being virtually free of C.sub.11 + compounds, with a zeolite which is virtually free of acid sites and characterized by a silica to alumina mole ratio of at least about 12 and a constraint index within the range of 1 to 12, having intimately combined therewith a metal selected from the group consisting of rhodium, platinum, palladium and iridium.

Abstract: Dialkyl disulfide waste, such as that formed in a caustic wash process for removing mercaptans from a hydrocarbon stream, is converted to hydrogen sulfide and valuable hydrocarbons by catalytic contact with a highly siliceous zeolite catalyst exemplified by ZSM-5. The hydrogen sulfide in turn is readily converted to marketable sulfur, thus alleviating the waste disposal problem.

Abstract: A method is provided for synthesizing alkylnitriles and alkylaminonitriles by reacting formaldehyde, a C.sub.1 -C.sub.5 monohydric alcohol and a compound having the formula R.sub.1 R.sub.2 NH where R.sub.1 and R.sub.2 are selected from the group consisting of hydrogen and alkyl groups containing 1 to 5 carbon atoms under effective conditions in the presence of a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12 and recovering from the resulting reaction mixture, a product containing at least one of the above nitrile compounds.

Abstract: A method is provided for synthesizing pyridine or alkylpyridines by reacting ammonia and a carbonyl reactant which is an aldehyde containing 2 to 4 carbon atoms, a ketone containing 3 to 5 carbon atoms or mixtures of said aldehydes and/or ketones under effective conditions in the presence of a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12 and recovering from the resulting reaction mixture, a product containing at least one compound of pyridine or an alkylpyridine. Addition of methanol and/or formaldehyde to the feed improves selectivity to unsubstituted pyridine.

Abstract: Synthesis gas is converted to aromatic hydrocarbons over an intimate mixture of catalysts comprising a first component of ZnO-Cr.sub.2 O.sub.3 mixed catalyst, characterized by catalytic activity for the reduction of hydrogen of carbon monoxide, wherein the Zn:Cr atomic ratio is less than about 4:1 and a second component selected from a selective class of acidic crystalline alumino-silicates having a silica:alumina ratio greater than 12:1 and a pore dimension greater than about 5 Angstroms.

Abstract: Synthesis gas is converted to aromatic hydrocarbons over an intimate mixture of catalysts comprising a first component of Zno-Cr.sub.2 O.sub.3 mixed catalyst, characterized by catalytic activity for the reduction by hydrogen of carbon monoxide, wherein the Zn.Cr atomic ratio is less than about 4:1 and a second component selected from a selective class of acidic crystalline aluminosilicates having a silica:alumina ratio greater than 12:1 and a pore dimension greater than about 5 Angstroms.

Abstract: Light gases rich in methane and ethane are produced from synthesis gas by contacting a CO reducing component of molybdena alone or in combination with an element selected from the group consisting of cobalt and vanadium distributed on a support of alumina or silica/alumina. The presence of hydrogen sulfide in the syngas feed enhances the activity and selectivity for the catalysts to produce ethane rich light gases.

Abstract: Synthesis gas is contacted with an intimate mixture of a carbon monoxide hydrogen reduction catalyst, comprising a methanol synthesis catalyst in combination with a selective class of acidic crystalline aluminosilicate having a silica/alumina ratio greater than 12, a pore dimension greater than about 5 Angstroms to produce hydrocarbon mixtures useful in the manufacture of heating fuels, gasoline, aromatic hydrocarbons, and chemicals intermediates.

Abstract: Contacting a mixture of carbon monoxide and hydrogen with an intimate mixture of a carbon monoxide reduction catalyst, such as a Fischer-Tropsch catalyst or a methanol synthesis catalyst, and an acidic crystalline aluminosilicate having a pore dimension greater than about 5 Angstroms to produce hydrocarbon mixtures useful in the manufacture of heating fuels, high octane gasoline, aromatic hydrocarbons, and chemicals intermediates.

Abstract: A catalytic process is provided for converting a charge consisting essentially of methanol, dimethyl ether or mixtures thereof to a hydrocarbon product rich in ethylene and propylene by contact, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite characterized by pores, the major dimension of which is less than 6 Angstroms and the capability, under said conditions, of producing less than 20 weight percent methane in said hydrocarbon product.

Abstract: A method and sequence of process steps is described for effecting the conversion of lower alcohols comprising methanol, ethanol, and propanol to primarily olefin boiling range component under conditions to significantly extract reaction heat and selectively control the restructuring of the alcohol feed through the production of ethers and particularly olefins.

Abstract: A lower alcohol and/or ether feed is selectively converted to a mixture of light olefins, including ethylene and propylene, by catalytic contact of the feed, for example methanol or dimethyl ether, at subatmospheric partial pressure, with certain crystalline aluminosilicate zeolite catalysts exemplified by HZSM-5. Low durene-content gasoline or gasoline blending stock are made from methanol or dimethyl ether by this process.

Abstract: A lower alcohol and/or ether feed is selectively converted to a mixture of light olefins, including ethylene and propylene, by catalytic contact of the feed, for example methanol or dimethyl ether, at subatmospheric partial pressure, with certain crystalline aluminosilicate zeolite catalysts exemplified by HZSM-5.

Abstract: The conversion of methanol to gasoline boiling hydrocarbons of low durene content is accomplished with a ZSM5 crystalline zeolite alone or supported by a binder-matrix material comprising primarily materials other than alumina.