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| Number | Title | Issue Date |
| 6689273 | Multireactor parallel flow hydrocracking process Heavy hydrocarbons are upgraded to higher value distillates in a hydrocarbon conversion process which employs several parallel on-stream reaction zones which each contain both hydrotreating and hydrocracking catalyst beds. The feed and liquid recycled fro... | 02/10/2004 |
| 5958222 | Standpipe distributor for short time contact of hydrocarbon compounds with particles An arrangement for the controlled production of an essentially linear array of hydrocarbon feed injection jets reduces required clearances and elevation while facilitating modification of the contacting locating a feed distributor containing a linear arra... | 09/28/1999 |
| 5820747 | Steam cracking process and facility comprising injection of powder which is collected at a single point A steam cracking process and facility is described which comprises injection of erosive powder to effect at least partial decoking of transfer line exchangers without interrupting the steam cracking stream. The powder, preferably injected just upstream of... | 10/13/1998 |
| 5681450 | Reduced chaos cyclone separation A cyclone and process for fluidized catalytic cracking of heavy oils is disclosed. Gas and entrained solids are added around a clean gas outlet tube in a cyclone body. Solids and some gas are withdrawn via a solids outlet and discharged into a catch chamb... | 10/28/1997 |
| 5665949 | Catalytic cracking process for hydrocarbons A process for separating catalyst particles in the catalytic cracking of reacted hydrocarbons includes feeding the reacted hydrobarbons to an unconfined cyclone device made up of a diplegless cyclone opening directly into a large volume separator vessel d... | 09/09/1997 |
| 5443718 | Reduced gas holdup in ebullated reactor A reactor for refining resid includes an elongated vertical vessel containing a bed of catalyst which is expanded or ebullated by a liquid/gas mixture. The mixture rises in an updraft through the bed and then is recirculated with an increased velocity by ... | 08/22/1995 |
| 5089115 | Downwardly forced particle bed for gas contacting Method for effecting contact of a gas with light particles of solid matter, where the particles are retained within particle retention screens to form a bed of particles and the particles move downward in plug flow by means of gravity. When the particles ... | 02/18/1992 |
| 4859315 | Liquid-solid separation process and apparatus A continuous fluidized process for upgrading a heavy liquid hydrocarbon charge-stock containing solid or solid-forming contaminants, e.g., inorganic solids, metals and asphaltenes. The charge is atomized to provide a stream of liquid particles introduced ... | 08/22/1989 |
| 4753907 | Fluid particle material regeneration method and apparatus Solids e.g. catalysts are separated from suspensions in gases e.g. products from catalytic cracking of crude oil fractions a discharging of suspensions against a surface positioned above the outlet of a riser conduit through which the suspensions are flow... | 06/28/1988 |
| 4693808 | Downflow fluidized catalytic cranking reactor process and apparatus with quick catalyst separation means in the bottom thereof This invention discloses an integral hydrocarbon conversion apparatus and process having a downflow hydrocarbon reactor, an upflow riser regenerator and a horizontal cyclone separator to permit the conversion of hydrocarbonaceous materials to hydrocarbona... | 09/15/1987 |
| 4664782 | Method for withdrawing particulate solid from a high pressure vessel The particulate solid is maintained in a bed in contact with a liquid within a high pressure vessel. The particulate solid is supported in the vessel in a cone-like configuration. A discharge tube is provided communicating with the particulate solid runni... | 05/12/1987 |
| 4591428 | Continuous process for the catalytic treatment of hydrocarbon oils The present invention relates to a continuous process for the catalytic treatment of a hydrocarbon oil and an apparatus for carrying out such process, by passing said oil through one or more catalyst beds within a reactor wherein catalyst is withdrawn fro... | 05/27/1986 |
| 4578370 | Gas circulation method for moving bed catalyst regeneration zones A method is disclosed for regenerating particulate catalyst used in a hydrocarbon conversion process such as catalytic reforming. The method is especially applicable to moving bed reactor systems. The catalyst being regenerated slowly moves downward as a ... | 03/25/1986 |
| 4167553 | Catalytic reaction chamber for gravity-flowing catalyst particles A catalytic reaction chamber for contacting a reactant stream with catalyst particles which are disposed as an annular-form bed and are downwardly movable therethrough via gravity-flow. The annular catalyst bed is spaced between a catalyst-retaining scree... | 09/11/1979 |
| 4155877 | Catalyst combustion regeneration process in downwardly moving bed with additional outlet responsive to gas flows Catalyst regeneration process and apparatus wherein air introduced to a midsection of a downwardly-moving mass of catalyst particles is taken off at the top and at the bottom of said bed through provided outlets and a third outlet is provided at the botto... | 05/22/1979 |
| 4141690 | Catalytic reaction chamber for gravity-flowing catalyst particles A catalytic reaction chamber for contacting a reactant stream with catalyst particles which are disposed as an annular-form bed and are downwardly movable therethrough via gravity-flow. The annular bed is spaced between a catalyst-retaining screen and a p... | 02/27/1979 |
| 4135886 | Catalytic reaction chamber for gravity-flowing catalyst particles A catalytic reaction chamber for contacting a reactant stream with catalyst particles which are disposed as an annular-form bed and are downwardly movable therethrough via gravity-flow. The annular bed is formed between a catalyst-retaining screen and a p... | 01/23/1979 |
