Matches 101 - 150 out of 188 < 1 2 3 4 >


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4822477 Integrated process for gasoline production  
An improvement in gasoline octane without substantial decrease in overall yield is obtained in an integrated process combining a fluidized catalytic cracking reaction and a fluidized catalyst...
4806700 Production of benzene from light hydrocarbons  
A process is disclosed for the conversion of a light aliphatic hydrocarbon, such as propane, into benzene and optionally also naphthalene. The feed hydrocarbon is converted to aromatic...
4774376 Production of liquid products from aliphatic hydrocarbons  
This invention relates to a process for producing liquid products e.g. gasoline blending components by conversion of a mixed paraffin/olefin gaseous feedstock over two types of catalysts. In a...
4654453 Process for converting oxygenates to hydrocarbons  
Aliphatic oxygenates are converted to high octane gasoline by an integrated process wherein three reaction zones are utilized. In a first reaction zone the oxygenates are directly converted to...
4612406 Olefin oligomerization  
The process for the oligomerization of linear and/or branched chain C2 to C12 olefins with non-zeolitic molecular sieves having a framework structure of MO2, AlO2 and PO2 tetrahedra and having an...
4594172 Process for the preparation of hydrocarbons  
Syngas is subjected to Fischer-Tropsch synthesis over a special Co/Zr/SiO2 catalyst and the C10 -C19 fraction of the synthesized product is converted into XHVI lub oil by treating with an organic...
4582949 Process for the preparation of an aromatic hydrocarbon mixture  
This invention relates to a two-stage conversion of olefins into aromatic hydrocarbon mixtures by contacting them in the first stage with a crystalline metal silicate and in the second stage with...
4579999 Multistage process for converting oxygenates to liquid hydrocarbons with aliphatic recycle  
A process for converting oxygenated feedstock, such as methanol, dimethyl ether or the like, to liquid hydrocarbons.In the primary catalyst stage the feedstock is contacted with zeolite catalyst...
4554393 Two-stage process for converting propane to aromatics  
A process for the production of aromatic compounds from low-molecular weight predominantly paraffinic feedstock which comprises contacting the feedstock in a first reactor with a dehydrogenation...
4544792 Upgrading Fischer-Tropsch olefins  
A process for converting olefinic feedstock, such as synthol olefinic liquid product of Fischer-Tropsch synthesis, to distillate hydrocarbons comprising the steps of contacting the feedstock at...
4542248 Process for the preparation of a C2 -C4 paraffin dehydrogenation catalyst  
A process is described wherein C2 -C4 paraffins are dehydrogenated over a catalyst which has been prepared by (a) impregnating an Al2 O3 carrier with an aqueous solution of a Sn-compound; (b)...
4523046 Method for gasoline yield enhancement in the fixed bed methanol-to-gasoline process  
Gasoline product yield is enhanced in a fixed bed methanol-to-gasoline process by splitting the conversion reactor into a series of smaller conversion reactors such that the total amount of...
4523047 Process for syngas conversions to liquid hydrocarbon products utilizing ZSM-45 zeolite  
The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts....
4520216 Process for the preparation of synthetic hydrocarbons  
Synthetic hydrocarbons, especially high octane gasoline, are prepared by catalytic conversion in two steps of a synthetic gas containing hydrogen and carbon oxides. In the first step the synthesis...
4503282 Process to convert linear alkenes selectively using high concentrations of AMS-1B crystalline borosilicate catalyst  
A process to convert a substantially linear alkene, such as n-butene, to isomerized products comprises contacting such alkene under conversion conditions comprising a temperature of above 300° C....
4499316 Conversion of effluent hydrocarbons streams using aluminophosphate catalysts  
By-product effluent streams from pyrolytic hydrocarbon cracking processes, containing monoolefins and diolefins, are treated to hydrogenate the olefins and to aromatize the aliphatics, with a...
4499326 Selective low-temperature isomerization of normal butenes using AMS-1B crystalline borosilicate molecular sieve  
A process to convert a normal butene to isomerized products comprises contacting such alkene under conversion conditions with a hydrogen form AMS-1B borosilicate catalyst composition at a...
4499325 Alkene conversion using AMS-1B crystalline borosilicate  
A process to convert an alkene to oligomerized, aromatized and isomerized products comprises contacting such alkene under conversion conditions with an AMS-1B borosilicate catalyst composition.
4499209 Process for the preparation of a Fischer-Tropsch catalyst and preparation of hydrocarbons from syngas  
A Fischer-Tropsch catalyst is prepared by impregnating a silica carrier with a solution of a zirconium or titanium compound, calcining the composition thus obtained, thereafter impregnating the...
4499315 Conversion of certain hydrocarbons using silicoaluminophosphate catalysts  
By-product effluent streams from pyrolytic hydrocarbon cracking processes, containing monoolefins and diolefins, are treated to hydrogenate the olefins and to aromatize the aliphatics, with a...
4483760 Process for dewaxing middle distillates  
A process is provided for catalytically dewaxing a middle distillate with a ZSM-5 type catalyst. In this process the olefinic by-product is separated and catalytically converted to additional fuel...
4476338 Olefins from methanol and/or dimethyl ether  
A process for converting methanol and/or dimethyl ether to olefins at moderate temperature and atmospheric pressure comprising contacting the feed with an alumina crystalline zeolite catalyst...
4471145 Process for syngas conversions to liquid hydrocarbon products utilizing zeolite Beta  
The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts....
4456779 Catalytic conversion of olefins to higher hydrocarbons  
An improved continuous process for converting lower olefinic hydrocarbon feedstock to C5+ liquid hydrocarbons by contacting vapor phase olefinic feedstream with acid zeolite catalyst in the...
4446013 Catalytic skeletal isomerization  
The catalytic reforming of a feedstock which contains a derivative of cyclopentane or which contains organic compounds which are convertible to a derivative of cyclopentane is carried out in the...
4444988 Use of liquefied propane and butane or butane recycle to control heat of reaction of converting olefins to gasoline and distillate  
The economics and thermal efficiency of an olefin-to-gasoline-conversion process utilizing catalyst beds is improved by separating the effluent product from the beds into a gas in a liquid phase,...
4433185 Two stage system for catalytic conversion of olefins with distillate and gasoline modes  
An improved process for converting an olefinic feedstock containing ethene and C3 + alkenes to produce a heavy hydrocarbon product rich in distillate by contacting the feedstock with an...
4423265 Process for snygas conversions to liquid hydrocarbon products  
The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts....
4413153 Integrated process for making transportation fuels and lubes from wet natural gas  
The synthetic fuel slate of products derived from wet natural gas is expanded to include both aromatic gasoline from the methane rich dry gas portion via steam reforming to synthesis gas, the...
4403044 Process for carrying out catalytic conversions  
A process for the manufacture and/or conversion of hydrocarbons comprises contacting as feed any of: a gaseous mixture of carbon monoxide and hydrogen, acyclic organic compounds, hydrocarbon...
4385193 Process for the preparation of middle distillates  
Middle distillate hydrocarbons are produced from feed mixtures of carbon monoxide and hydrogen by contacting said feed at elevated temperature and pressure in a first stage with certain...
4336125 Production of synthetic hydrocarbon fuels from peat  
A process and apparatus for production of synthetic hydrocarbon fuels from peat providing wide variation of the composite proportion of liquid-gas output while maintaining high overall carbon...
4279830 Conversion of synthesis gas to hydrocarbon mixtures utilizing dual reactors  
The conversion of less than 1 H2 /CO ratio syngas to high yield of C3 plus product is accomplished with a CO reducing catalyst comprising shift characteristics and the product of Fischer-Tropsch...
RE30157 Xylene isomerization  
Mixtures of C8 aromatic hydrocarbons are contacted in vapor phase with acid zeolite ZSM-5. The xylene content is thereby isomerized and the ethyl benzene content of the charge is converted in a...
4169865 Production of aromatic hydrocarbons  
A process for the dimerization and cyclization of isobutene to form, as preferred product, paraxylene in which the whole of the product of isobutene dimerization (including unreacted feedstock) is...
4158025 Selected aromatic hydrocarbon production  
Selected aromatic hydrocarbon concentrates -- benzene, mixed xylenes -- are produced by way of a combination process which involves catalytic reforming followed by dealkylation. Although the...
4158026 Combination process for selected aromatic hydrocarbon production  
Selected aromatic hydrocarbon concentrates -- benzene, mixed xylenes, etc. -- are produced by way of a combination process which involves catalytic reforming followed by hot flash separation of a...
4105707 Combination alkylation-reforming process  
High octane number motor fuel is produced by a combination process comprising alkylating isobutane with an olefin to produce an alkylate, fractionating the alkylate to remove isobutane, C3...
4078990 Manufacture of lower aromatic compounds  
Certain acidic heterogeneous catalysts produce large yields of benzene, toluene and xylene from alkyl aromatics of at least nine carbon atoms by a mechanism different from the classical...
4070408 Aromatics extraction and distillation process  
An improved aromatics extraction process is disclosed. Key feature of the present invention is use of the fractionator in the hydrodealkylation unit or other unit with a benzene fraction to...
4058576 Conversion of methanol to gasoline components  
A method and sequence of process steps is described for effecting the conversion of lower alcohols comprising methanol, ethanol and propanol to gasoline boiling range component arranged to...
4058450 Process for producing aromatic hydrocarbons of high purity  
Process for producing aromatic hydrocarbons from gasolines substantially free of mono- and diolefins, comprising an aromizing step in the presence of a catalyst at a temperature from 400° to 600°...
4056575 Chemical process making aromatic hydrocarbons over gallium catalyst  
This invention relates to a process for aromatizing unsaturated hydrocarbons in the presence of a supported gallium catalyst. Xylenes may be prepared from C4 feedstock by this route.
4053388 Process for preparing aromatics from naphtha  
This invention is directed to producing a high yield of aromatics from naphtha by integrating a catalytic reformer and a thermal hydrocracking unit followed by fractionating the product stream to...
4049539 Two-stage process for upgrading naphtha  
Naphthas are upgraded in a two-stage process to give improved yields of high octane gasoline. The first stage operates at low temperatures of 100°-300° F using a highly active chlorinated alumina...
4049734 Conversion of coal to high octane gasoline  
An integrated process for converting coal to high octane gasoline by gasifying the coal in such manner as to form a gas comprising carbon oxides, hydrogen and methane; contacting this gas in one...
4048250 Conversion of natural gas to gasoline and LPG  
Natural gas is steam reformed to a mixture of carbon monoxide, carbon dioxide and hydrogen which mixture is converted, over a methanol synthesis catalyst, to a mixture of methanol, carbon oxides...
4035430 Conversion of methanol to gasoline product  
The conversion of methanol to gasoline boiling products in a plurality of sequentially arranged catalyst beds comprising a dehydration catalyst followed by a special class of crystalline zeolite...
4009219 Total synthesis of benzene from non-hydrocarbon materials  
A method of producing benzene on a high yield basis is disclosed in which non-hdyrocarbon carbonaceous raw materials are reacted with an alkali metal or an alkaline earth metal in the form of...
3969426 Conversion of methanol to products comprising gasoline boiling components  
Methanol is converted in a plurality of conversion zones at temperatures selected from within the range of 500° to 1200°F. and reactant residence time within the range of 0.5 to 60 seconds in the...

Matches 101 - 150 out of 188 < 1 2 3 4 >