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| Number | Title | Issue Date |
| 7452458 | Process for the treatment of a hydrocarbon feedstock Process for treatment of a hydrocarbon feedstock that comprises a hydrocarbon-containing liquid phase and hydrogen, in which the feedstock is separated under a pressure P1 into a liquid L1 and a gas G1, that is compressed and brought into contac... | 11/18/2008 |
| 7374660 | Process for selectively producing Colefins in a fluid catalytic cracking process with recycle of a Cfraction to a secondary reaction zone separate from a dense bed stripping zone A process for selectively producing C3 olefins from a catalytically cracked or thermally cracked naphtha stream is disclosed herein. The naphtha stream is introduced into a process unit comprised of a reaction zone, a stripping zone containing a dense pha... | 05/20/2008 |
| 7311813 | Distillation sequence for the purification and recovery of hydrocarbons This invention is an improved distillation sequence for the separation and purification of ethylene from a cracked gas. A hydrocarbon feed enters a C2 distributor column. The top of the C2 distributor column is thermally coupled to an ethylene distributor column, an... | 12/25/2007 |
| 7005057 | Hydrocracking process for the production of ultra low sulfur diesel A catalytic hydrocracking process for the production of ultra low sulfur diesel wherein a hydrocarbonaceous feedstock is hydrocracked at elevated temperature and pressure to obtain conversion to diesel boiling range hydrocarbons. The resulting hydrocracking zone eff... | 02/28/2006 |
| 6517705 | Hydrocracking process for lube base oil production A catalytic hydrocracking process for the production of lube base oil wherein a hydrocarbonaceous feedstock is contacted with hydrogen and a metal promoted hydrocracking catalyst in a hydrocracking reaction zone at elevated temperature and pressure to obt... | 02/11/2003 |
| 6264828 | Process, including membrane separation, for separating hydrogen from hydrocarbons Processes for providing improved methane removal and hydrogen reuse in reactors, particularly in refineries and petrochemical plants. The improved methane removal is achieved by selective purging, by passing gases in the reactor recycle loop across membra... | 07/24/2001 |
| 6133186 | Process for the preparation of a catalyst composition The present invention provides a process for the preparation of a catalyst composition which comprises, as first cracking component, a zeolite beta with a silica to alumina molar ratio of at least 20 comprising crystals less than 100 nm in size, and a sec... | 10/17/2000 |
| 6017441 | Multi-step catalytic process for conversion of a heavy hydrocarbon fraction A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one three-phase reactor containing at least one ebullated bed hydroconv... | 01/25/2000 |
| 5980730 | Process for converting a heavy hydrocarbon fraction using an ebullated bed hydrodemetallization catalyst A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one three-phase reactor containing at least one ebullated bed hydroconv... | 11/09/1999 |
| 5689032 | Method and apparatus for recovery of H2 and C2 and heavier components A process and apparatus for separating a hydrocarbon gas into fractions containing predominant portions of hydrogen, methane, and C2 and heavier components, where the methane and lighter components are separated from the feed gas under non-cryo... | 11/18/1997 |
| 5675054 | Low cost thermal coupling in ethylene recovery The invention is a process for reducing capital and energy costs in ethylene recovery. Moderate pressure processing and thermally coupled fractionation steps are achieved through the use of integrator columns. Ethylene separation from cracked gas originat... | 10/07/1997 |
| 5647972 | Low pressure chilling train for olefin plants A method of processing a cracked gas feedstream containing hydrogen and C1 to C6 and heavier hydrocarbons is described using a relatively low pressure as compared to conventional cryogenic separation processes. At pressures below 27 ... | 07/15/1997 |
| 5624548 | Heavy naphtha hydroconversion process A straight run naphtha is fractionated to yield on intermediate naphtha and the heaviest 10-25 vol % as heavy naphtha. The heavy naphtha is subjected to hydrocracking to yield liquid fuel and lighter, including C4 isoparaffins and a cracked nap... | 04/29/1997 |
| 5558767 | Catalyst regeneration procedure using net gas equipment A method of converting a hydrocarbon feed with a catalyst and regenerating the catalyst by contact with an oxygen-containing stream is disclosed. The hydrocarbon conversion process employs a purification zone that purifies a net gas stream and that also r... | 09/24/1996 |
| 5453177 | Integrated distillate recovery process An integrated three-column process for recovering hydrocarbon distillate products from a hydroprocessing or hydrocracking reactor effluent stream and a hydrocarbon distillate product recovery train are disclosed. According to the present recovery process,... | 09/26/1995 |
| 5360535 | Ebullated bed process with recycle eductor In an ebullated bed process reactor effluent is subjected to high pressure followed by intermediate flash separation. An ebullation liquid is formed by educting high pressure flash separation liquid into an intermediate flash separation liquid. The ebulla... | 11/01/1994 |
| 5164070 | Hydrocracking product recovery process The recovery of distillate products from a hydrocracking process includes passing the liquid-phase portion of the reaction zone effluent into a stripping column. A naphtha sidecut stream is recovered off the stripping column and combined with the net over... | 11/17/1992 |
| 5139646 | Process for refractory compound removal in a hydrocracker recycle liquid A catalytic hydrocracking process which minimizes the fouling of the process unit with 11+ ring heavy polynuclear aromatic compounds by means of partially condensing the hydrocarbon effluent from the hydrocracking zone to produce an unconverted... | 08/18/1992 |
| 5120426 | Hydrocracking process An improved hydrocracking process, in a process for conversion of components of a heavy hydrocarbon feed to lighter, more valuable products, wherein the feed comprises foulant, the process comprising: (a.) contacting the feed with hydrogen, in the presenc... | 06/09/1992 |
| 5074989 | Process for the separation of fine catalyst particles for a hydrocarbon feedstock by filtration through mineral barries and a filtration loop This invention relates to a process for the separation of fine catalyst particles from a hydrocarbon feedstock coming from a catalytic cracking unit by filtration through mineral barriers and a filtration loop. The process consists of filtering the feedstock t... | 12/24/1991 |
| 5045177 | Desulfurizing in a delayed coking process An improvement has been found in the gas recovery section of a delayed coking process. In the improvement the compressor discharge is amine scrubbed to remove hydrogen sulfide. The compressor discharge is the entire vapor feed to the gas recovery section ... | 09/03/1991 |
| 4931165 | Process for refractory compound rejection from a hydrocracker recycle liquid A catalytic hydrocracking process which comprises: (a) contacting a hydrocarbonaceous feedstock having a propensity to form heavy polynuclear aromatic compounds and a liquid recycle stream in a hydrocracking zone to convert a substantial portion of the hy... | 06/05/1990 |
| 4925573 | Process for separating hydroprocessed effluent streams Process for separating a mixed-phase hydrocarbonaceous effluent originating from the conversion of a hydrocarbonaceous feedstock in the presence of hydrogen at elevated temperature and pressure in a multiple separator system, which effluent contains hydro... | 05/15/1990 |
| 4776948 | Fractionation method with quench liquid recycle Method and apparatus for fractionating a hot vaporous hydrocarbon feed from a fluid catalytic cracking reactor wherein the hot vaporous feed is introduced into a fractionator zone near one end thereof and liquid is removed from a liquid collection zone an... | 10/11/1988 |
| 4673488 | Hydrocarbon-conversion process with fractionator overhead vapor recycle An improved method for processing the effluent of a hydrocarbon conversion zone. The invention is particularly useful in a catalytic reforming reaction, wherein practice of the invention results in an increased recovery of butane and propane. The effluent... | 06/16/1987 |
| 4169782 | Visbreaking process A process for visbreaking a heavy petroleum fraction wherein the effluent of the visbreaking heater is quenched by admixture with an overhead liquid produced by condensation of the overhead vapors of a secondary flash zone. The visbreaker effluent is then... | 10/02/1979 |
| 4159937 | Mixed-phase reaction product effluent separation process Multiple-stage separation of a mixed-phase product effluent resulting from the hydrocracking and/or hydrorefining conversion of a hydrocarbonaceous charge stock. Reaction product effluent is initially separated in a high temperature, high pressure first s... | 07/03/1979 |
| 4159935 | Conversion of hydrocarbonaceous black oils Hydrocarbonaceous black oils are converted into lower-boiling hydrocarbons via a process which utilizes two separate catalytic reactor systems interconnected by way of a multiple-stage separation facility. Fresh feed charge stock is reacted in the first r... | 07/03/1979 |
| 4125566 | Process for upgrading effluents from syntheses of the Fischer-Tropsch type This process applies to effluents from syntheses of the Fischer-Tropsch type; it comprises several treatments applied to the three cuts obtained from these effluents, i.e. a "light fraction", a "light oil" and a "decanted oil". These treatments comprise s... | 11/14/1978 |
| 4003822 | Main column separation of FCC product effluent Separation of the catalyst-containing product effluent from a fluid catalytic cracking unit is effected in the main column by a technique which involves removing a light naphtha fraction as the single overhead stream and separately withdrawing a heavy nap... | 01/18/1977 |
| 3996129 | Reaction product effluent separation process A reaction product effluent, containing hydrogen, normally gaseous hydrocarbons and normally liquid hydrocarbons, is separated into desired component streams in a system which incorporates a low-pressure flash zone, a debutanizer and a deethanizer. The ne... | 12/07/1976 |
