Patent application number | Description | Published |
20090065397 | COMBINATION HOT SEPARATOR AND REACTOR VESSEL FOR SIMULTANIOUSLY DESULFURIZING TWO VAPOR STREAMS - A method and an apparatus for removing sulfur hydrocarbon compounds from naphtha stream as well as a method and an apparatus for simultaneously removing sulfur hydrocarbon compounds from two streams is shown and described. The method includes providing a separator vessel having a top, a bottom, a primary feed inlet in a co-feed inlet disposed vertically above the primary feed inlet. The separator vessel further includes a catalyst bed disposed between the co-feed inlet and the top. The top includes a vapor outlet and bottom includes a bottoms outlet The method includes delivering a primary feed stream comprising sulfur hydrocarbon compounds through the effluent inlet and delivering a vaporized co-feed stream that also comprises sulfur hydrocarbon compounds through the co-feed inlet. The method further includes vaporizing at least a portion of the sulfur hydrocarbon compounds in the primary feed stream and passing the vaporized sulfur hydrocarbon compounds from the primary feed stream with the vaporized co-feed stream, that also comprises sulfur hydrocarbon compounds, upward through the catalyst bed Sulfur hydrocarbon compounds from both primary feed and co-feed stream are at least partially converted to hydrogen sulfide and non-sulfur containing hydrocarbons in the catalyst bed. Then, the method includes removing the co-feed stream and vaporized portion of the primary feed, less at least some sulfur hydrocarbon compounds, through the vapor outlet and removing the primary feed stream through the bottoms outlet | 03-12-2009 |
20120145513 | APPARATUS FOR REMOVING HEAVY POLYNUCLEAR AROMATIC COMPOUNDS FROM A HYDROPROCESSED STREAM - The present invention is an improved apparatus for stripping HPNA's from hydroprocessed streams in a fractionation column having a split shell configuration. Only one vapor stripping feed is required to the split shell of the fractionation column. The resulting reduction in steam requirement provides a superior fractionation in the column. | 06-14-2012 |
20120145594 | PROCESS FOR REMOVING HEAVY POLYNUCLEAR AROMATIC COMPOUNDS FROM A HYDROPROCESSED STREAM - The present invention is an improved process for stripping HPNA's from hydroprocessed streams in a fractionation column having a split shell configuration. Only one vapor stripping feed is required to the split shell of the fractionation column. The resulting reduction in steam requirement provides a superior fractionation in the column. | 06-14-2012 |
20130043159 | PROCESS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS IN SERIES - A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. A net overhead stream from the hot stripper is forwarded to the cold stripper for further stripping. The invention is particularly suitable for hydrotreating residue feed streams. The hot stripped stream may be subjected to fluid catalytic cracking. The apparatus and process eliminates the need for a fired heater in the product recovery unit. | 02-21-2013 |
20130043161 | PROCESS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS IN ONE VESSEL - A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper are contained in the same vessel. A barrier prevents material from the hot stripper from entering into the cold stripper. | 02-21-2013 |
20130045138 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS IN SERIES - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. A net overhead stream from the hot stripper is forwarded to the cold stripper for further stripping. The invention is particularly suitable for hydrotreating residue feed streams. The hot stripped stream may be subjected to fluid catalytic cracking The apparatus and process eliminates the need for a fired heater in the product recovery unit. | 02-21-2013 |
20130045140 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. Only the hot hydroprocessing effluent is heated in a fired heater prior to product fractionation, resulting in substantial operating and capital savings. | 02-21-2013 |
20130045141 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS IN ONE VESSEL - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper are contained in the same vessel. A barrier prevents material from the hot stripper from entering into the cold stripper. | 02-21-2013 |
20130045142 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS AND COMMON OVERHEAD RECOVERY - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper utilize a common overhead recovery apparatus. | 02-21-2013 |
20130046125 | PROCESS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS - A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. Only the hot hydroprocessing effluent is heated in a fired heater prior to product fractionation, resulting in substantial operating and capital savings. | 02-21-2013 |
20150041365 | HYDROTREATING PROCESS AND APPARATUS RELATING THERETO - One exemplary embodiment can be a process for treating a hydroprocessing fraction. The process can include obtaining a bottom stream from a fractionation zone, and passing at least a portion of the bottom stream to a film generating evaporator zone for separating a first stream containing less heavy polynuclear aromatic compounds than a second stream. | 02-12-2015 |
20150060331 | METHOD FOR MULTI-STAGED HYDROPROCESSING USING QUENCH - Methods for processing a hydrocarbonaceous feedstock flows are provided. In one embodiment, the method includes providing two or more hydroprocessing stages disposed in sequence, each hydroprocessing stage having a hydroprocessing reaction zone with a hydrogen requirement and each stage in fluid communication with the preceding stage. The hydrocarbonaceous feedstock flow may be separated into portions of fresh feed for each hydroprocessing stage, and the first portion of fresh feed to the first hydroprocessing stage is heated. The heated first portion of fresh feed may be supplied with hydrogen from the hydrogen source in an amount satisfying substantially all of the hydrogen requirements of the hydroprocessing stages to a first hydroprocessing zone. The unheated second portion of fresh feed is injected counter current to the process flow as quench at one or more locations in one or more of the reaction zones. | 03-05-2015 |