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| Number | Title | Issue Date |
| 6616900 | FCC process with two zone short contact time reaction conduit An FCC process provides ultrashort catalyst and feed contacting in an FCC riser by recovering a short contact product stream in an intermediate section of the riser. The remainder of the catalyst and gas mixture continues through the riser along a continu... | 09/09/2003 |
| 6585884 | Method of producing synthesis gas from a regeneration of spent cracking catalyst The present invention provides a method of producing a synthesis gas from a regeneration of spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first regeneration zone in a presence of a first oxygen and carbon dioxid... | 07/01/2003 |
| 6572761 | Method for efficient and environmentally clean utilization of solid fuels A process of oxidizing an ash and sulfur containing fuel such as coal in order to power gas turbines using a material such as the oxides of iron which in an oxidized state can be readily reduced and which in a reduced state is readily oxidized. Preferably... | 06/03/2003 |
| 6562231 | Catalyst composition and processes therefor and therewith A composition comprises silicon, aluminum, zirconium, and boron. A process for producing the composition comprises contacting a silicon compound, an aluminum compound, a zirconium compound, and a boron compound under a condition sufficient to effect the p... | 05/13/2003 |
| 6558531 | Method for maintaining heat balance in a fluidized bed catalytic cracking unit The invention relates to a process for maintaining heat balance in a fluidized bed catalytic cracking unit. More specifically, the invention relates to a combustion control method capable of maintaining or restoring heat balance by conducting, under appro... | 05/06/2003 |
| 6558530 | Process for the fluid catalytic cracking with pre-vaporized feed A process for the catalytic cracking in a fluidized bed where the feed stock is fully and previously vaporized before made to contact the cracking catalyst which has its origin in the regenerator. The pre-vaporization of the feed dispenses with the heat e... | 05/06/2003 |
| 6555090 | Acid oxide with micro and mesoporous characteristics: ITQ-36 The invention deals with a microporous crystalline material, with a characteristic X-ray diffractogram, comprised of oxygen tetrahedra and a metal (T+4 and T+3) with the possibility of introducing surface acidity produced by the subs... | 04/29/2003 |
| 6540904 | Process for the upgradation of petroleum residue The present invention provides a process for the upgradation of petroleum residue into useful fractions by subjecting petroleum residue in the presence of a solvent and ferrous sulphate catalyst to a pressure in the range of 10 atm. to 120 atm., temperatu... | 04/01/2003 |
| 6511635 | Fluid state catalytic cracking reactor having solid fastened packing element for homogeneously distributing particle flow The upstream portion of a reactor (1), contains, between the feeding area of the catalyst flow and the injection area of the charge to be cracked, at least one solid and attached packing element (6, 6'), that extends over all or part of the cross section ... | 01/28/2003 |
| 6508930 | Method for stabilizing operation of fluid catalytic converter units The operation of fluid catalytic converter (FCC) units can be stabilized through use of tests wherein a first catalyst and a second catalyst are introduced into the FCC unit in at least two different ratios, at two different times, in order to establish t... | 01/21/2003 |
| 6497811 | Reduction of sulphur content in FCC-naphtha The present invention comprises a composition for reducing the sulphur content in a hydrocarbon composition, wherein the composition comprises a hydrotalcite material, which has been impregnated with a Lewis acid, and optionally a FCC-catalyst. The hydrot... | 12/24/2002 |
| 6491875 | Fluidized particle contacting process with elongated combustor A particulate catalyst is regenerated by upward transport in a combustor having an extended length and separated from combustion gases with a single stage of cyclones. The extended length combustor ends with a termination device arranged to tangentially d... | 12/10/2002 |
| 6491810 | Method of producing synthesis gas from a regeneration of spent cracking catalyst The present invention provides a method of producing a synthesis gas from a regeneration of spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first regeneration zone in a presence of a first oxygen and carbon dioxid... | 12/10/2002 |
| 6485631 | Process for thermal, and optionally catalytic, upgrading and hydrogenation of hydrocarbons A process for thermal and, optionally, catalytic upgrading and hydrogenation of hydrocarbons is described, wherein the hydrocarbons (oil) with a lower API grade is passed through one or more reactors connected in parallell or in series, preferably in seri... | 11/26/2002 |
| 6482312 | Particulate solids cracking apparatus and process A catalytic cracking unit is disclosed which provides for separation and quenching of the effluent with a total kinetic residence time of from 0.1 to 0.6 seconds.... | 11/19/2002 |
| 6482313 | FCC process incorporating crystalline microporous oxide catalysts having increased Lewis acidity A catalyst component, a catalyst, and a process for making the component and catalyst are disclosed herein. Also disclosed herein is a fluid catalytic cracking process for converting petroleum feedstocks to lower boiling products wherein the feedstock is ... | 11/19/2002 |
| 6454933 | Fluid atomization process A process and apparatus for atomizing a fluid is disclosed. The processes and apparatuses are useful for atomizing a feed oil for a fluid cat cracking (FCC) or other suitable process.... | 09/24/2002 |
| 6419819 | Synthetic porous crystalline MCM-67, its synthesis and use This invention relates to a new synthetic porous crystalline material, designated MCM-67, a method for its preparation and use thereof in catalytic conversion of organic compounds. MCM-67 appears to be closely related in structure to VPI-8 and SSZ-41 but ... | 07/16/2002 |
| 6420621 | Optimized process for the preparation of olefins by direct conversion of multiple hydrocarbons A process for hydrocarbon conversion to prepare lower olefins such as ethylene, propylene, etc., and light aromatics by bringing hydrocarbons into contact with a solid granular catalyst. In order to optimize the reaction conditions and product structure a... | 07/16/2002 |
| 6416656 | Catalytic cracking process for increasing simultaneously the yields of diesel oil and liquefied gas This discloses a process for catalytically cracking hydrocarbon stocks in a riser or fluidized bed reactor simultaneously to increase yields of diesel and liquefied gas. The process includes the steps of: first, charging a gasoline stock and a catalytic c... | 07/09/2002 |
| 6388161 | Production of olefins A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards propylene in the effluent, the process comprising contacting a hydrocarbon feedstock containing one or more olefinic components of C4 or greater with a cryst... | 05/14/2002 |
| 6387247 | Feed injection system for catalytic cracking process A catalytic cracker riser reactor is connected to a regenerator standpipe through which hot, regenerated catalyst enters the riser bottom region. A hydrocarbon feed, such as gas oil, and dispersing gases, such as steam, are introduced through a single bot... | 05/14/2002 |
| 6383975 | Procedure to obtain a catalyst for the hydrodenitrogenation and hydrodesulfurization of middle and heavy oil fraction and the resulting product A procedure to prepare a catalyst for the hydrodenitrogenation, hydrodesulfurization and hydrodemetallization of middle and heavy oil fractions. The catalyst uses a support consisting on an alumina matrix, having this matrix dispersed on its surface or in... | 05/07/2002 |
| 6379536 | NOx reduction compositions for use in FCC processes Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Gr... | 04/30/2002 |
| 6379531 | Zeolite SSZ-52 The present invention relates to new crystalline zeolite SSZ-52 prepared using a quaternary ammonium cation templating agent having the structure ##STR1## where X-- is an anion which is not detrimental to the formation of the SSZ-52. SSZ-52 is useful in c... | 04/30/2002 |
| 6358401 | Apparatus and procedures for replenishing particulate materials used in industrial processes Injection of particulate materials into industrial processes can be improved through use of a vessel mounted on a weighing device and which is vented through use of two separate and distinct valves. Optionally, a predetermined pressure in the vessel is ma... | 03/19/2002 |
| 6352639 | Superheating atomizing steam with hot FCC feed oil An atomizing gas, such as steam, and a hot fluid comprising a hot liquid to be atomized, are passed under pressure, through separate fluid conduits in a heat exchange means, in which the hot liquid heats the steam to a superheat temperature, by indirect h... | 03/05/2002 |
| 6342153 | Pillared clay catalysts for heavy oil catalytic pyrolisis process and the preparation method thereof Pillared clay catalysts for converting heavy oil or residual feedstock into maximum ethylene, propylene and butylene products comprises 30-75 wt % special pillared clays prepared by aluminum pillaring agents of high alkaline degree, 10-40 wt % inorganic o... | 01/29/2002 |
| 6339181 | Multiple feed process for the production of propylene This invention relates to a process to produce propylene from a hydrocarbon feed stream, preferably a naphtha feed stream, comprising C5 and C6 components wherein a light portion having a boiling point range of 120° C. or less is introduced into a reacto... | 01/15/2002 |
| 6288298 | Naphtha cracking utilizing new catalytic silicoaluminophosphates having an AEL structure Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the catalytic cracking of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ... | 09/11/2001 |
| 6280607 | NOx reduction compositions for use in FCC processes Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Gr... | 08/28/2001 |
| 6275776 | Method for characterizing residual crude oil and petroleum fractions A method to rapidly characterize the hydrocarbon chemistry of heavy residual petroleum mixtures uses three model equations for predicting aromatic carbon content, aromatic hydrogen content and total hydrogen content of the heavy residual oil. The predicti... | 08/14/2001 |
| 6267873 | Fluidized catalytic cracking process A fluidized catalytic cracking process for catalytically cracking a feed to lighter products includes introducing a heated catalyst and the feed into a bottom riser of a fluidized catalytic cracking apparatus and allowing the heated catalyst and the feed ... | 07/31/2001 |
| 6258990 | Process for producing polypropylene from C3 olefins selectively produced in a fluid catalytic cracking process from a naphtha/steam feed A process for producing polymers from C2 -C4 olefins selectively produced from a catalytically-cracked or thermally-cracked naphtha stream is disclosed herein. A mixture of the naphtha stream and a stream of steam is feed into a reac... | 07/10/2001 |
| 6238548 | FCC process for upgrading gasoline heart cut An FCC process converts a secondary feed comprising a heart cut of a gasoline product stream with spent catalyst at mild conditions to obtain a surprising increase in the octane number of the resulting gasoline product. More surprisingly, the increase in ... | 05/29/2001 |
| 6225255 | Additive catalyst for the cracking of heavy oil An additive catalyst for the cracking of heavy oil, characterized in that the additive catalyst includes: (i) a mixed metal oxide composed of an acidic metal oxide and a basic metal oxide, in which the proportion of the basic metal oxide is from 5 to 50 m... | 05/01/2001 |
| 6224748 | Process for hydrocracking cycle oil A process for hydrocracking heavy, high aromatic content feeds, such as cycle oil, using a catalyst composition containing a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component including a Group IVB metal oxide mo... | 05/01/2001 |
| 6217747 | Process for selective wax hydrocracking A process for hydrocracking heavy hydrocarbon feeds using a catalyst composition containing a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component including a Group IVB metal oxide modified with an oxyanion of a Gr... | 04/17/2001 |
| 6210562 | Process for production of ethylene and propylene by catalytic pyrolysis of heavy hydrocarbons A catalytic pyrolysis process for production of ethylene and propylene from heavy hydrocarbons, comprises that heavy hydrocarbons are contacted with a pillared interlayered clay molecular sieve and/or phosphorus and aluminum or magnesium or calcium modifi... | 04/03/2001 |
| 6190536 | Catalytic cracking process Processes and apparatus for providing improved catalytic cracking, specifically improved recovery of olefins, LPG or hydrogen from catalytic crackers. The improvement is achieved by passing part of the wet gas stream across membranes selective in favor of... | 02/20/2001 |
