Matches 51 - 100 out of 188 < 1 2 3 4 >


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5401386 Reforming process for producing high-purity benzene  
Provided is a reforming process for producing a high purity benzene product using a non-acidic zeolitic catalyst. The high purity benzene is extracted from a light fraction of reformate that has...
5396010 Heavy naphtha upgrading  
A fluid catalytically cracked heavy naphtha containing a substantial proportion of preferably more than 90% C9 + hydrocarbons is contacted with a reformate heavy naphtha containing a substantial...
5386071 Process for producing aromatics from a C5 /C6 feedstream  
This invention relates to a process for convening C5 /C6 hydrocarbons to aromatic products, e.g., benzene, toluene, etc. The process involves first flowing the C5 /C6 feedstream to a first...
5376259 Staged catalyst processing to produce optimum aromatic barrel per calendar day aromatic production  
A naphtha feed is contacted in a penultimate aromatic forming stage under catalytic aromatic forming conditions with a first catalyst. The effluent from the penultimate stage is contacted in a...
5318689 Heavy naphtha conversion process  
A straight run naphtha is fractionated to yield on intermediate naphtha and the heaviest 10 vol % as heavy naphtha. The intermediate naphtha is catalytically reformed to yield reformed naphtha...
5300715 Olefin process with removal of aromatic by-products  
An improved process for the production of linear olefinic hydrocarbons by paraffin dehydrogenation and adsorptive separation is disclosed. Aromatic by-products normally formed in paraffin...
5292976 Process for the selective conversion of naphtha to aromatics and olefins  
A staged process has been discovered for the selective conversion of paraffins in naphtha to aromatics and conversion of naphthenes in naphtha to olefins. In a first stage, n-paraffins in naphtha...
5288935 Method of producing liquid hydrocarbons from natural gas, in the presence of a catalyst based on zeolite and gallium  
The invention concerns a method of producing liquid hydrocarbons from natural gas, characterized in that: a) the natural gas is separated in (2) into at least two fractions, a first fraction of...
5278344 Integrated catalytic reforming and hydrodealkylation process for maximum recovery of benzene  
The present invention is an integrated catalytic reforming/hydrodealkylation process that maximizes benzene recovery by incorporating refrigeration and pressure swing adsorption separation units....
5258563 Process for the production of benzene from light hydrocarbons  
A process is disclosed for the conversion of light aliphatic hydrocarbons such as propane into aromatic hydrocarbons and especially high purity benzene. The feed hydrocarbon is converted to...
5227555 Production of gasoline from light hydrocarbons  
A process for the production of gasoline from a light hydrocarbon feed. The feed is catalytically aromatized to produce an effluent containing aromatics and olefins with the aromatics and olefins...
RE34189 Conversion of paraffins to gasoline  
An improved two-step process for the conversion of lower molecular weight paraffins, the process comprising contacting in a first step a C2 -C10 alkane-rich feedstock with a siliceous zeolite...
5167795 Process for the production of olefins and aromatics  
A process for the production of olefins and aromatics from hydrocarbon feedstocks by catalytically cracking alone or cracking and dehydrogenating the hydrocarbons in the presence of an entrained...
5138112 Process for converting a C2 -C6 aliphatic hydrocarbon to high octane transportable fuel  
A combination process for the conversion of C2 -C6 aliphatic hydrocarbons into easily transportable hydrocarbons of greater molecular weight. The combination process comprises converting the C2...
5138113 Process for producing alkylaromatic hydrocarbons from natural gas  
The invention relates to a process for producing alkylaromatic hydrocarbons from natural gas containing methane, characterized in that it comprises the following three successive stages: 1)...
5110446 Integrated products separation from fluid catalytic cracking and aromatization processes  
The present invention provides a process for decreasing the energy consumption of a catalytic cracking process product recovery section while improving gasoline yield by integrating multistage...
5087782 Dehydrocyclization of polyalpha-olefin lubricants  
The disclosure reveals that aromatic structures can be introduced into the molecular structure of polyalpha-olefin lubricant oligomers by subjecting the polyalpha-olefin to a dehydrocyclization...
5059744 Reactor and recovery system for upgrading lower olefins  
An improved olefin upgrading technique and fixed-bed reactor system has been developed for increasing production of premium heavy hydrocarbons, such as distillate fuel, from lower olefinic...
5030783 Endothermic hydrocarbon upgrading process  
A process is disclosed for the conversion of an aliphatic feedstream in which an oxygen-deficient flue gas is used to directly transfer heat to the primary conversion reaction. Hydrogen, carbon...
5030782 Light alkane conversion  
Aliphatics are aromatized in a two-stage catalytic upgrading process. In the first stage, aliphatic hydrocarbons are at least partially cracked and dehydrogenated to form an intermediate product...
5023389 Process for preparing normally liquid oxygenate and hydrocarbonaceous products from a hydrocarbon feed containing linear- and branched olefins  
The invention relates to a process for preparing normally liquid hydrocarbon products such as middle distillates and methyl-t-butylether from a hydrocarbon feed containing linear and branched...
5004852 Two-stage process for conversion of olefins to high octane gasoline  
Light aliphatic streams containing C4 - olefins are upgraded to C5 + gasoline in a two-stage process. In the first stage, olefins are oligomerized to C5 + olefinic gasoline. Unreacted light...
4992607 Petroleum refinery process and apparatus for the production of alkyl aromatic hydrocarbons from fuel gas and catalytic reformate  
A petroleum refinery process for the production of alkyl aromatic hydrocarbons from a C4- fuel gas containing light olefins including ethene and propene and catalytic reformate containing C6 to C8...
4990712 Integrated cracking, etherification and olefin upgrading process  
Gasoline octane number and yield are improved while excess fuel gas production is decreased in a catalytic cracking process by integrating etherification and oxygenate/aliphatic upgrading...
4985203 Conversion system for converting oxygenates to hydrocarbons  
Aliphatic oxygenates are converted to high octane gasoline by an integrated reactor system wherein three reaction zones are utilized. In a first reaction zone the oxygenates are directly converted...
4969987 Integrated process for production of gasoline and ether  
Process and apparatus for upgrading paraffinic naphtha to high octane fuel by contacting a fresh virgin naphtha feedstock stream medium pore acid cracking catalyst under low pressure selective...
4968401 Aromatization reactor design and process integration  
A paraffinic feedstream is aromatized in an FCC external catalyst cooler by contacting the paraffinic feedstream with hot regenerated cracking and additive catalysts.
4966680 Integrated catalytic cracking process with light olefin upgrading  
Process and apparatus for upgrading light olefinic crackate gas from a fluidized catalytic cracking unit having a riser reactor for contacting hot solid cracking catalyst with a heavy hydrocarbon...
4950823 Benzene upgrading reformer integration  
A process and apparatus are disclosed for the production of gasoline from a C4- fuel gas containing ethene and propene and catalytic reformate containing C6 to C8 aromatics. The C4- fuel gas is...
4950387 Upgrading of cracking gasoline  
A process is disclosed for increasing the octane number of an FCC unit gasoline pool by upgrading selected gasoline boiling-range streams. FCC gasoline is mixed with the feed to a light olefin...
4925996 Two stage process for catalytic conversion of olefins to higher hydrocarbons  
A process is disclosed for converting a feedstock containing ethylene to produce heavier hydrocarbons in the gasoline or distillate boiling range including the steps of contacting the olefins...
4922048 Medium-pore zeolite olefinic naphtha by-product upgrading  
A process is provided for upgrading the olefinic gasoline by-product of low-severity medium-pore zeolite catalyzed hydrocarbon conversion processes including catalytic dewaxing and olefin...
4912273 Production of aromatic hydrocarbons from alkanes  
Alkanes, preferably lower alkanes, are converted to olefins in a `third bed` external catalyst cooler (ECC) in which hot catalyst from a first regenerator (`second bed`) operating in conjunction...
4910357 Alkylate upgrading  
A process selective for converting dimethylhexanes to aromatic analogs is described. Application of the exhibited selectivity of the process allows upgrading alkylate dimethylhexane(s) of low RON...
4906800 Procedure for imparting selectivity to hydrogenation catalysts and method for using the same  
This invention relates to a method for the preparation of selective acetylene hydrogenation catalysts. More specifically, this invention relates to a pretreatment method for supported and...
4898717 Multistage process for converting oxygenates to distillate hydrocarbons with interstage ethene recovery  
An integrated process is provided for converting methanol, dimethylether or the like to heavy hydrocarbon products, especially distillate range hydrocarbons. In a first stage catalytic process...
4899002 Integrated staged conversion of methanol to gasoline and distillate  
A process for the increased production of olefinic gasoline is described incorporating the integration of olefins to gasoline conversion under moderate severity conditions in contact with zeolite...
4899004 Process for producing trimethylbenzene  
Trimethylbenzene is selectively prepared by contacting a C1 to C4 alkane with magnesium under reaction conditions to produce a reaction product. The reaction product thus produced, is contacted...
4891457 Multistage process for converting olefins to heavier hydrocarbons  
A staged reactor technique for converting ethene-rich olefinic feedstock to heavier hydrocarbons, particularly gasoline and distillate range products. By employing low temperature and high...
4886925 Olefins interconversion and etherification process  
An integrated process is disclosed for the conversion of C2 + normal olefins into methyl tertiaryalkyl ethers and high octane gasoline. The process combines olefins interconversion with...
4885420 Process for the production of aromatic hydrocarbons from olefinic hydrocarbons  
Disclosed is a multi-stage catalytic process for the production of aromatics from a feedstock comprising C2 -C5 olefins. The process comprises the steps of: (1) passing a hydrocarbon feedstock...
4879424 Conversion of alkanes to gasoline  
A moving-bed catalytic process is disclosed for converting C2 -C10 aliphatic hydrocarbons to high-octane gasoline. By controlling the reaction severity in sequential reaction zones, yield of high...
4879428 Upgrading lower olefins  
An improved olefin upgrading technique has been developed for increasing production of premium heavy hydrocarbons, such as distillate fuel, from lower olefinic feedstock. During recovery and...
4865718 Maximizing distillate production in a fluid catalytic cracking operation employing a mixed catalyst system  
A fluid catalytic cracking method which comprises: (a) cracking a hydrocarbon feed stock in the presence of a mixed catalyst system which comprises particles of a first, amorphous cracking...
4861930 Combination process for the conversion of a C2 -C6 aliphatic hydrocarbon  
A combination process for the conversion of C2 -C6 aliphatic hydrocarbons into easily transportable hydrocarbons of greater molecular weight. The combination process comprises converting the C2...
4859308 Two-stage process for conversion of alkanes to gasoline  
Lower alkanes are converted to olefins in a `third bed` external catalyst cooler (ECC) in which hot catalyst, from a first regenerator (`second bed`) operating in conjunction with a fluid...
4851602 Alkanes and alkenes conversion to high octane gasoline  
Method and means are described for the conversion of lower molecular weight paraffins and olefins to high octane gasoline rich in alkylated aromatics. In a two stage process catalyzed by...
4830728 Upgrading naphtha in a multiple riser fluid catalytic cracking operation employing a catalyst mixture  
A catalytic cracking process is provided featuring multiple risers in which a variety of hydrocarbon conversion reactions take place, a stripping unit in which entrained hydrocarbon material is...
4827046 Extraction of crude methanol and conversion of raffinate  
An improved process for reacting crude aqueous methanol feedstock with tertiary-olefinic hydrocarbons to produce C5+ methyl tertiary-alkyl ethers, which comprises: contacting the aqueous methanol...
4826586 Single riser fluidized catalytic cracking process utilizing a C3-4 paraffin-rich co-feed and mixed catalyst system  
There is provided a catalytic cracking operation featuring a single riser reaction zone having a lower and an upper section wherein a variety of hydrocarbon conversion reactions takes place, a...

Matches 51 - 100 out of 188 < 1 2 3 4 >