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| Number | Title | Issue Date |
| 7256152 | Composition of catalyst and solvent and catalysis processes using this composition A composition defined: either as comprising at least one Broensted acid, designated HB, dissolved in a liquid medium with an ionic nature of general formula Q+A−, in which Q+ represents an organic cation and A− represents an an... | 08/14/2007 |
| 6103947 | Alkylation of alkanes with mixtures of alkenes and alkyl halides Although alkenes commonly are used to alkylate alkanes using various solid acid catalysts, the process is severely hampered by short catalyst lifetimes attending substantial alkene oligomerization. This problem can be avoided by using an alkene-alkyl chlo... | 08/15/2000 |
| 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, high octane number alkylates. The processes of the inventio... | 05/25/1999 |
| 5895831 | Solid catalyst alkylation process A process for the production of motor fuel alkylate by reacting an alkene hydrocarbon, an alkane hydrocarbon and a hydrogen halide with a solid alkylation catalyst disposed in swing beds. The spent solid alkylation catalyst is regenerated in a highly inte... | 04/20/1999 |
| 5866747 | Alkylation of alkanes with mixtures of alkenes and alkyl halides Although alkenes commonly are used to alkylate alkanes using various solid acid catalysts, the process is severely hampered by short catalyst lifetimes attending substantial alkene oligomerization. This problem can be avoided by using an alkene-alkyl chlo... | 02/02/1999 |
| 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 |
| 4472264 | Process for converting solid carbonaceous materials to methane Process for converting solid carbonaceous materials to methane, comprising (a) converting the carbonaceous material by means of a reducing gas at 300°-500° C. to a semi-oily phase adapted to be pumped and atomized, (b) heating falling droplets of said s... | 09/18/1984 |
| 4045503 | Alkyl fluoride storage stabilization and alkylation with stored alkyl fluoride Alkyl fluorides are stored in the presence of a paraffinic hydrocarbon diluent prior to utilization, for example, alkylation, in order to prevent degradation of the fluoride to heavy polymer oil formation.... | 08/30/1977 |
| 4026961 | Isoparaffin HF alkylation with low-boiling alkyl fluoride-containing fraction High quality motor fuel alkylate is produced in a combination process comprising hydrofluorination of an olefin-containing hydrocarbon stream with HF to produce alkyl fluorides, separation of the produced alkyl fluorides into a low boiling fraction and a ... | 05/31/1977 |
| 4012455 | Upgrading refinery light olefins with hydrogen contributor A combination operation is described and method for upgrading C2 -C5 olefin rich streams with selective crystalline zeolite compositions in a fluidized catalyst system at relatively low pressures by reaction with hydrogen or a carbon... | 03/15/1977 |
| 4009221 | HF recovery with alkyl fluoride formation and utility in alkylation A process and apparatus for HF alkylation wherein the vapor from the fractionation zone in which the effluent of the reaction zone is fractionated is contacted with water, the mixture formed is reacted with an olefin to form an alkyl fluoride, the alkyl f... | 02/22/1977 |
| 3985823 | Isoparaffin-olefin alkylation with HF alkylation and isomerization in a soaking zone A process for producing hydrocarbon alkylate from an isoparaffin and an olefin-acting agent. The isoparaffin, the olefin and a first, relatively low strength hydrogen fluoride catalyst are contacted in an alkylation reaction to form a reaction mixture, th... | 10/12/1976 |
| 3976714 | Normal paraffin alkylation with a catalyst of a Lewis acid and group VIII metal intercalated in graphite Normal paraffin alkylation with an alkylating agent, i.e. olefin, alkylhalide or alcohol, is effected in the presence of a catalyst of graphite having intercalated in the lattice thereof between about 5 and about 75 weight percent of a Lewis acid. The cat... | 08/24/1976 |
| 3959402 | Separation of HF from polymer, constant boiling mixture relief gases and vent gases in alkylation process HF-containing vent gases, relief gases, CBM and polymers discharged from the alkylation zone of an HF alkylation process are contacted with water. Hydrogen fluoride is absorbed within the water, reacted with olefins, converted to organic fluorides and ret... | 05/25/1976 |
| 3956418 | Isoparrafin alkylation utilizing a catalyst of sulfuric acid and hydrofluoric acid An improved process for alkylating at least one alkylatable isoparaffin with at least one alkylating agent selected from the class consisting of an olefin and an alkyl sulfate ester in the presence of a catalyst comprising a major amount of sulfuric acid ... | 05/11/1976 |
