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6583330 |
Catalysts containing heteropolyanions usable in processes for conversion of paraffins
New catalysts that contain heteropolyanions of the 12-tungstophosphoric acid or the 12-tungstomolybdic acid, and, for some of these, at least one metal of group VIII, and that are deposited on...
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6429349 |
Co-alkylation for gasoline RVP reduction
Methods and apparatus that are used in an alkylation reactor system for adding low purity isopentane to alkylation reactor feed to block formation of isopentane, resulting in high incremental...
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6395945 |
Integrated hydroisomerization alkylation process
A novel integrated olefin processing scheme is provided where olefins and paraffins are processed to produce high octane gasoline blending components. The integrated process involves the processing...
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6281405 |
Alkylation process using membrane for recovery of halides
A process for recovering halides from hydrocarbon containing streams is disclosed using a sulfonated hexafluro bis-A-polysulfone membrane of polymers and copolymers having the polymer repeat unit...
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6235959 |
Aliphatic hydrocarbon alkylation process
The invention concerns a process for alkylating isoparaffins by olefins using a novel catalyst, the olefin preferably being a low reactivity olefin. The catalyst is a composition resulting from a...
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6225517 |
Alkylation catalyst, method for preparing same, and use thereof in alkylation methods
An alkylation catalyst including a least one porous refractory metal oxide with at least one halogen on the surface thereof. The catalyst contains 0.005-1 wt % of at least one metal from groups IA...
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6203712 |
Process for separation by settling in a plurality of distinct zones
A process for separating at least two liquid phases which are at least partially non miscible is characterized in that after reacting, a polyphase effluent is settled in at least two distinct...
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6194625 |
Alkylation by controlling olefin ratios
Disclosed are various embodiments for alkylating olefins and isoparaffins in the presence of an acid to reduce and/or control acid consumption or maximize and/or control the octane number of the...
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6172274 |
Solid catalyst alkylation process using a wetting zone
A solid catalyst alkylation process that wets catalyst particles with the alkylation substrate prior to introducing the catalyst particles to a liquid phase alkylation reactor is disclosed. A vapor...
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6137021 |
Conversion of an HF alkylation unit
A method of converting an HF alkylation process into a solid catalyst alkylation process is disclosed. In this method, an HF alkylation unit having an HF stripper downstream of the HF alkylation...
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6106789 |
Alkylation reactor with internal acid cooling zones
The invention provides an improved alkylation process and reactor apparatus. The invention utilizes a vessel containing a riser-reactor conduit, an acid settler and an acid cooler. Hydrocarbons are...
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6103949 |
Alkaline phosphate-activated clay/zeolite catalysts
Zeolite/clay/phosphate catalysts can be prepared by a process wherein a composition of zeolite-clay-phosphate is brought to a pH level of about 7.0 to about 14.0. The resulting slurry is then age...
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6096939 |
Aliphatic alkylation utilizing a liquid catalyst
The invention concerns the catalytic alkylation of at least one isoparaffin selected from the group formed by isobutane and isopentane in the presence of at least one olefin containing 3 to 6...
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6018088 |
Superacid catalyzed formylation-rearrangement of saturated hydrocarbons
A method is disclosed for producing branched aliphatic ketones in hydrocarbon mixtures from isoalkanes by a superacid catalyzed formylation-rearrangement reaction. The method can be used to...
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5986158 |
Process for alkylating hydrocarbons
The invention pertains to a process for alkylating hydrocarbons in which an alkylatable organic compound is reacted with an alkylation agent to form an alkylate in the presence of a catalyst...
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5925801 |
Process for preparing high-octane gasoline components, and a catalyst
A process for preparing high-octane gasoline components consists in that a feed stock, composed of isobutane and olefins, preferably butylenes, in a molar ratio between 1 and 40, is contacted at...
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5907075 |
Solid acid supercritical alkylation reactions using carbon dioxide and/or other co-solvents
Improved isoparaffin-olefin alkylation solid catalyst processes are provided which are characterized by low coke laydown and catalyst deactivation rates and production of valuable branched chain,...
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5906957 |
Solid aliphatic alkylation catalyst
The invention concerns a catalyst comprising a porous organic or inorganic support and at least one active phase comprising at least one acid selected from acids with formula R--SO3 H, where R is...
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5877371 |
Heterogeneous Lewis acid-type catalysts
A solid state insoluble salt catalyst system for the carbocationic polymerization of olefin monomer in the presence of a polar or non-polar reaction medium, which comprises (a) solid state catalyst...
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5856611 |
Zirconium catalyzed transesterification process for preparing synthetic wax monomers
A zirconium catalyzed transesterification process for preparing synthetic wax monomers is disclosed. The monomers are useful in a wide range of polymers.
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5856606 |
Turbulent bed solid catalyst hydrocarbon alkylation process
Paraffins or other hydrocarbons are alkylated in a process featuring a reaction zone containing a pool of liquid maintained at its boiling point and containing a suspended solid catalyst, which...
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5849976 |
Moving bed solid catalyst hydrocarbon alkylation process
Hydrocarbons are alkylated using slowly moving cylindrical beds of solid catalyst in a process featuring a cooling zone within the reaction zone and a moving bed catalyst regeneration zone. The...
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5849978 |
Liquid catalyst for aliphatic alkylation
The invention concerns the catalytic alkylation of at least one isoparaffin selected from the group formed by isobutane and isopentane in the presence of at least one olefin containing 3 to 6...
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5811625 |
Method of indirect heat exchange for two phase flow distribution
The use of flow restrictors at the inlet of reactor cooling tubes significantly improves heat transfer and process performance in an acid catalyzed alkylation reaction process. Improved...
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5811627 |
Alkylation reactions
Improved acid catalyzed alkylation reactions occur for the addition of a hydrocarbyl reactant to an alkene, by the optimized addition of an oxidizing agent, such as a peroxide, molecular oxygen,...
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5804689 |
Process for recovering acetylene from hydrocarbons by thermal cracking
For recovering acetylene from hydrocarbons, the hydrocarbons are thermally cracked in the presence of CO2 as a diluent gas. Suitable for thermal cracking for acetylene generation is a ratio, by...
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5780688 |
Supported-catalyst and use of same
The invention concerns a supported catalyst in the form of packing and constructed on an open-pore support material on whose external and internal surfaces a macro-porous ion exchange resin is...
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5780703 |
Process for producing low aromatic diesel fuel with high cetane index
A process for converting at least one olefin and at least one isoparaffin to a diesel fuel blending component comprising the steps of contacting the olefin and the isoparaffin with a catalyst...
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5777189 |
Process for the alkylation of olefins
Disclosed is a process for the alkylation of an olefin with an isoparaffin using sulphuric acid as a catalyst. In this process, a finely-dispersed emulsion of isoparaffin and sulphuric acid is...
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5750818 |
Alkylation process
A process for cooling unreacted hydrocarbon substrate that is recycled to an alkylation reactor and for minimizing the concentration of lower boiling hydrocarbons in such recycle.
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5744667 |
Preparation of trimethyl pentanes by hydrogen transfer
Gasoline range olefins such as trimethyl pentene are saturated to the corresponding paraffins such as trimethylpentane by hydrogen transfer from lower molecular weight paraffins using a catalyst...
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5744682 |
Alkylation process using a catalyst with non-uniform metal dispersion
A novel catalyst for alkylating an alkene with an alkane to give an alkylate product has been developed. The catalyst comprises a refractory inorganic oxide on which is dispersed a Group VIII...
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5733439 |
Hydrocarbon conversion processes using substituted fluoride smectite clays
Hydrocarbon conversion processes, e.g., alkylation, are disclosed and claimed which use as the catalyst novel fluoride containing substituted smectite clays. The clay has the formula Ax (My...
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5731256 |
Alkylation catalyst for C4 -C5 isoparaffins using at least one C2 -C6 olefin
The present invention concerns a catalyst comprising a porous organic or mineral support, preferably silica, and an acidic phase containing B(OSO2 CF3)3 and at least one acid selected from the...
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5707923 |
Method of and apparatus for controlling an alkylation process
Disclosed is a method of alkylating in which a hydrocarbon and acid emulsion is circulated in a reaction loop between a reactor and a cooler. A small sidestream of the reaction emulsion is...
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5705729 |
Isoparaffin-olefin alkylation process
An improved process for alkylation of isoparaffins with olefins to yield a product which includes a high proportion of highly branched alkylates for blending into gasolines is disclosed. The...
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5675052 |
Hydrocarbon alkylation process
A hydrocarbon stream is cracked to produce a hot gaseous stream which is compressed and cooled to condense almost all of the hydrocarbons contained in the stream. A noncondensed stream remaining...
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5672795 |
Balanced alkylation feed from etherification and isomerization
An etherification process combines an alkylation zone with a skeletal olefin isomerization zone in an arrangement that rejects isoalkanes and normal alkanes with only minor loss of valuable olefin...
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5663474 |
Alkylation process using hydrogen fluoride-containing alkylation catalysts
This invention relates to catalysts for alkylation reactions and their preparation. More particularly, the invention relates to an alkylation process using a hydrogen fluoride-containing alkylation...
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5639930 |
Process of producing alkylates
Method of producing alkylates in which an isoparaffin, olefin, a diffusing agent and a solid, acid catalyst are combined to form a three phase reaction mixture; a hydrocarbon phase containing...
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5583275 |
Alkylation of olefins utilizing mixtures of isoparaffins
Disclosed is an alkylation process in which C3 to C5 olefins are reacted with an isoparaffin mixture of isobutane and isopentane in the presence of a catalyst. Varying the amount of isopentane...
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5571762 |
Catalyst and process for the alkylation of aliphatic hydrocarbons with olefins
A process for the alkylation of aliphatic hydrocarbons with olefins catalyzed by a silica-based material, characterised in that the surface Si--OH groups of said silica are esterified with a...
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5536894 |
MCM-56 as sorbent and catalyst component
This invention relates to use of synthetic layered material MCM-56 as a sorbent and as a catalyst component in catalytic conversion of organic compounds. Examples of sorbent use include rapid...
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5534656 |
Organic compound conversion with MCM-58
This invention relates to use of synthetic porous crystalline MCM-58 as a catalyst component in catalytic conversion of organic compounds.
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5523503 |
Cocurrent simulated moving bed hydrocarbon alkylation process
Hydrocarbons such as isobutane and benzenes are alkylated using a solid catalyst in a process which simulates the cocurrent movement of the catalyst bed versus the reactants. This has been found to...
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5516962 |
Catalyst and process for isoparaffin-olefin alkylation
There are provided a catalyst, a method for making this catalyst, and a process for using this catalyst in the alkylation of an isoparaffin with an olefin to provide an alkylate. The catalyst may...
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5498813 |
In situ formation of corrosion inhibitors
Alkyl alcohols are added to the effluent from hydrocarbon reactions using phosphoric acid based catalysts to prevent corrosion in metallic pipes and vessels downstream of the reactor. The alcohol...
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5498817 |
Isoparaffin/olefin alkylation over vacancy-containing titanometallate molecular sieves
The invention provides a process for alkylating an olefin with an isoparaffin comprising contacting an olefin-containing feed in the presence of a thermally stable composition comprising a...
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5481057 |
Alkylation with activated equilibrium FCC catalyst
A process for catalytic cracking and C3/C4 olefin alkylation with phosphorus stabilized faujasite catalyst is disclosed. Catalytic cracking produces C3 and C4 olefins, which are alkylated using...
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5461182 |
Hydrogen transfer and isoparaffin-olefin alkylation process
The transfer of hydrogen from a paraffin to an olefin is provided. This reaction may be carried out in the presence of a catalyst, such as MCM-36. Especially when the paraffin reactant is an...
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