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| Number | Title | Issue Date |
| 7550644 | Isobutane alkylation A method for isobutane alkylation is provided using a fixed-bed catalytic alkylation reactor comprises at least one catalytic flow channel. A feed stream comprising a compound to be alkylated is passed into a flow channel having an alkylation catalyst positioned on ... | 06/23/2009 |
| 7550643 | Isobutane alkylation A method for isobutane alkylation is provided wherein a fixed-bed catalytic alkylation reactor comprises at least one catalytic flow channel. A feed stream comprising a compound to be alkylated admixed with a minor amount of an olefin is introduced into the flow cha... | 06/23/2009 |
| 7435864 | Method and device for the production of alkylates Disclosed is a device for the production of alkylate(s) by sulfuric acid alkylation of at least one isoparaffin such as isobutane with at least one olefin, such as butylenes. The device includes a mixing chamber for preparing a mixture of the isoparaffin with recycl... | 10/14/2008 |
| 7319180 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 01/15/2008 |
| 7288693 | Pulse flow reaction A method of operating a multi-phase downflow reactor so as to induce a pulsing flow regime is disclosed. The pulse may be induced by increasing the gas rate while maintaining the liquid rate until a pressure drop sufficient to induce the pulse flow is achieved. The ... | 10/30/2007 |
| 7250542 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 07/31/2007 |
| 7119244 | Method of removing organic sulfur compounds from alkylate A process for the removal of organic sulfur compounds, primarily oxygenated organic compounds, such as sulfates and sulfonic esters from a hydrocarbon liquid is disclosed which comprises contacting the hydrocarbon liquid with a coalescer comprising a mesh material w... | 10/10/2006 |
| 6995296 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 02/07/2006 |
| 6858770 | Paraffin alkylation A process for the alkylation of alkane with olefin or olefin precursor such as an oligomer of tertiary olefin comprising contacting a liquid system comprising acid catalyst, isoparaffin and olefin in concurrent downflow into contact in a reaction zone with a dispers... | 02/22/2005 |
| 6664432 | Heat transfer in the acid catalyzed--effluent refrigerated alkylation process The acid catalyzed--effluent refrigerated alkylation of hydrocarbons in a shell and bare tube type alkylation reactor is improved by providing the bare tubes with internal inserts capable of increasing turbulence and mixing of refrigerant within the tubes... | 12/16/2003 |
| 6204425 | Process for the catalytic alkylation of a hydrocarbon feed Process for the alkylation of paraffinic and/or aromatic hydrocarbon feedstock with an olefinic alkylating agent by contact with a perfluorinated alkyl sulphonic acid movably adsorbed within a confined area of a fixed bed of particle contact material, whe... | 03/20/2001 |
| 6187986 | Fresh plant inventory hydrofluoric acid eduction process A slipstream of high pressure, cooled isobutane recycle from within an alkylation process unit is used to withdraw hydrofluoric acid from a storage vessel by means of an eductor and discharges the same into a reactor section of the unit. The eductor is pr... | 02/13/2001 |
| 6123836 | Process for the removal of acid compounds from a hydrocarbon stream Process for the removal of acid compounds contained in a hydrocarbon process stream by passing the process stream through a fixed bed of an adsorption material at conditions where the acid compounds adsorb on the material and withdrawing a purified hydroc... | 09/26/2000 |
| 5942654 | Process for the removal of corrosive compounds from a fluid stream A process for the removal of corrosive compounds from a fluid stream, comprising the steps of: in an extraction column with an outer steel tube and an inner tube of corrosion resistant material having an open inlet end and an open outlet end and being arr... | 08/24/1999 |
| 5811626 | Paraffin alkylation process Disclosed is a process for the alkylation of an isoparaffin by an olefin in the presence of a catalyst. In the process, a portion of the isoparaffin recovered after extraction from the reaction zone (R) is recycled to the reaction zone and the feed is per... | 09/22/1998 |
| 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 prepared first, in a separate emulsion preparation zone. This ... | 07/07/1998 |
| 5744681 | Paraffin alkylation process A process for the alkylation of at least one isoparaffin by at least one olefin in the presence of at least one solid acidic catalyst, characterized in that the major portion of the olefin is initially brought into contact with the catalyst in a complexin... | 04/28/1998 |
| 5675053 | Alkylation process Improved process for the supported liquid phase alkylation of an aliphatic hydrocarbon feedstock in the presence of a fluorinated sulphonic acid catalyst with an olefinic alkylating agent in a reactor containing a fixed bed of particular polar contact mat... | 10/07/1997 |
| 5349116 | Alkane alkylation and catalyst therefor A composition of matter comprises trifluorometbanesulfonic acid and a solid inorganic material which contains aluminum borate and aluminum oxide, This composition is used as a catalyst for alkylating at least one C2 -C10 alkane (pref... | 09/20/1994 |
| 5345027 | Alkylation process using co-current downflow reactor with a continuous hydrocarbon phase A continuous alkylation process for the production of high octane gasoline comprising contacting a mixture of an isoparaffin and an olefin with a catalyst complex comprising BF3:H3 PO4 in a continuous hydrocarbon downflow reactor.... | 09/06/1994 |
| 5304697 | Process for upgrading a paraffinic feedstock Process for upgrading a paraffinic feedstock which includes: a) supplying the feedstock and an olefins-containing stream at a paraffin to olefin volume ratio greater than 2 to a reactor containing a zeolite-beta catalyst; and b) removing the upgraded prod... | 04/19/1994 |
| 5292981 | Isoparaffin-olefin alkylation process A process for isoparaffin-olefin alkylation is provided that permits the use of solid acid catalysts which require frequent regeneration and high isoparaffin/olefin ratios. The process comprises circulating in a reactor a slurry comprising solid acid zeol... | 03/08/1994 |
| 5284990 | Method for converting a hydrogen fluoride alkylation unit to a sulfuric acid alkylation unit A method for converting HF alkylation unit to a sulfuric acid alkylation unit comprising the steps of retaining a reactor, an acid settler and a fractionation section from the HF alkylation unit and modifying at least a portion of the HF alkylation unit t... | 02/08/1994 |
| 5245100 | Alkylation process Aliphatic hydrocarbons are alkylated in the presence of a fluorinated sulphonic acid catalyst. The catalyst, which is adsorbed on a polar contact material, is pushed sequentially through first and second reactors by a feedstream and is then recycled back ... | 09/14/1993 |
| 5220094 | Alkylation recontractor with internal mixer An improved alkylation recontactor is provided, wherein the recontactor utilizes an internal mixer for mixing hydrocarbon effluent from an alkylation zone with an acid catalyst from an acid inventory vessel in fluid flow communication with the interior of... | 06/15/1993 |
| 5220095 | Alkylation process A process for liquid phase alkylation of a hydrocarbon substrate with an olefinic alkylating agent comprising the steps of passing a process stream of the hydrocarbon substrate and alkylating agent at alkylating conditions through a fixed bed alkylation r... | 06/15/1993 |
| 5196626 | Film type alkylation process The present invention includes an isoparaffin:olefin alkylation process and apparatus in which liquid acid inventory is reduced and temperature control is improved by reacting the isoparaffin:olefin feed with a thin film of liquid acid catalyst supported ... | 03/23/1993 |
| 5157196 | Paraffin alkylation process Paraffin alkylation using solid, particulate catalyst is carried out by preparing an alkane-catalyst mixture in a wash zone, passing the alkane-catalyst mixture to a plug flow reactor where a minor amount of olefin is introduced to contact the alkane-cata... | 10/20/1992 |
| 5120895 | Low acid inventory alkylation A process and apparatus are disclosed for acid continuous alkylation of a hydrocarbon-containing feedstream in which the inventory of acid is reduced. The apparatus used combines a reactor, settler and heat exchanger in a single vessel. The acid phase flo... | 06/09/1992 |
| 5095167 | Isoparaffin:olefin alkylation process The present invention provides a process and apparatus for alkylating an isoparaffin with an olefin which decreases the required catalyst inventory while improving alkylate quality by internally admixing unreacted isoparaffin and alkylate product with the... | 03/10/1992 |
| 4769511 | Alkylation process utilizing enhanced boiling surface heat exchanger in the reaction zone The present invention is directed to an improvement in an alkylation process involving effluent refrigeration in which an enhanced boiling surface heat exchanger is utilized in the alkylation reaction zone so as to carry out the reaction at its optimum re... | 09/06/1988 |
| 4276439 | Catalytic alkylation method and apparatus with hydrocarbon recycle A process and apparatus for the catalytic alkylation of an isoparaffin with one or more olefins. Reactant hydrocarbons are passed in contact with a liquid catalyst such as hydrofluoric acid in a reaction zone. The hydrocarbon phase is allowed to separate ... | 06/30/1981 |
| 4075258 | Isoparaffin olefin alkylation utilizing high intensity mixing An improved process for the production of higher octane number products by the high intensity mixing of alkylation media, or media wherein olefins are alkylated by the addition thereto of isobutane. The alkylation reaction is conducted by contact between ... | 02/21/1978 |
| 4053535 | Process for producing isoparaffin-olefin alkylate having improved octane number An isoparaffin - olefin alkylate of improved octane number is produced by passing total hydrocarbon reactants through a static mixing zone prior to passing the reactants to a riser-reactor admixed with HF acid catalyst. The total hydrocarbon reactants inc... | 10/11/1977 |
| 4028430 | Simulated moving bed reaction process A continuous catalytic reaction and catalyst reactivation process is carried out using a simulated moving catalyst bed to effect simultaneously in different zones of a multi-zone fixed catalyst bed an alkylation reaction of olefin and isoparaffin reactant... | 06/07/1977 |
| 4024200 | Countercurrent flow reaction chamber for plural stages of HF alkylation An alkylatable reactant is alkylated with an olefin-acting reactant, utilizing a fluid HF catalyst in a countercurrent flow reaction chamber wherein reactants are flowing upward and the fluid catalyst is flowing downward. The fluid catalyst enters the rea... | 05/17/1977 |
| 4008291 | Simulated moving bed alkylation process A continuous catalytic alkylation reaction and catalyst reactivation process is carried out using a simulated moving catalyst bed to effect simultaneously in different zones of a multi-zone, fixed catalyst bed, an alkylation reaction and a reactivation of... | 02/15/1977 |
| 4000212 | Unitary acid-hydrocarbon reactor in hydrocarbon alkylation A unitary acid-hydrocarbon reactor suitable for alkylation of hydrocarbons comprising, in a vertically disposed vessel, a lower acid-hydrocarbon mixing section, a reactor riser extending substantially centrally of the vessel from a top portion of said sec... | 12/28/1976 |
