Class / Patent application number | Description | Number of patent applications / Date published |
208211000 | With preliminary treatment of feed | 12 |
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 |
20090101545 | Method for Desulfurising Olefin Motor Gasoline - The invention concerns a process for producing gasoline with a low sulphur content and a controlled olefins content, comprising a step for oligomerizing an olefinic feed (step i), a step ii) consisting of mixing the branched olefinic gasoline produced in step i) with a gasoline rich in sulphur and olefins, a step iii) for hydrodesulphurization of said mixture, and separating the H | 04-23-2009 |
20090139901 | TWO-STEP PROCESS FOR DESULPHURIZING OLEFINIC GASOLINES COMPRISING ARSENIC - The invention concerns a fixed bed process for capturing arsenic and for desulphurizing a hydrocarbon fraction comprising olefins, sulphur and arsenic, said process comprising a step a) for bringing a capture mass into contact with said hydrocarbon fraction in the presence of hydrogen, the ratio between the flow rate of hydrogen and the flow rate of the hydrocarbon fraction being in the range 50 to 800 Nm | 06-04-2009 |
20090145807 | PROCESS TO PRODUCE LOW SULFUR CATALYTICALLY CRACKED GASOLINE WITHOUT SATURATION OF OLEFINIC COMPOUNDS - The invention relates to a process for the desulfurization of a gasoline fraction with high recovery of olefins and reduced loss of Research Octane Number (RON). A petroleum fraction is contacted with hydrogen and a commercially available hydrodesulfurization catalyst under mild conditions with to remove a first portion of the sulfur present, and is then contacted with an adsorbent for the removal of additional sulfur. | 06-11-2009 |
20120138510 | PROCESS TO PRODUCE LOW SULFUR CATALYTICALLY CRACKED GASOLINE WITHOUT SATURATION OF OLEFINIC COMPOUNDS - The invention relates to a process for the desulfurization of a gasoline fraction with high recovery of olefins and reduced loss of Research Octane Number (RON). A petroleum fraction is contacted with hydrogen and a commercially available hydrodesulfurization catalyst under mild conditions with to remove a first portion of the sulfur present, and is then contacted with an adsorbent for the removal of additional sulfur. | 06-07-2012 |
20140027351 | PROCESS FOR HYDROTREATING HEAVY HYDROCARBON FEEDS WITH SWITCHABLE REACTORS INCLUDING AT LEAST ONE STEP OF PROGRESSIVE SWITCHING - Process for hydrotreating a heavy hydrocarbon fraction using a system of switchable fixed bed guard zones each containing at least one catalyst bed including at least one step during which the flow of feed supplied to the first guard zone brought into contact with the feed is partly displaced to the next guard zone downstream, preferably progressively. | 01-30-2014 |
20140166540 | RESIDUE HYDROTREATMENT CATALYST COMPRISING VANADIUM, AND ITS USE IN A RESIDUE HYDROCONVERSION PROCESS - A catalyst containing a group VIB element; a group VIII element; phosphorus in a quantity of 0.1% to 9% by weight of phosphorus pentoxide with respect to the total catalyst mass; vanadium in a quantity of 0.25% to 7% by weight of vanadium pentoxide with respect to the total catalyst mass; a porous refractory oxide support; | 06-19-2014 |
20140197074 | TARGETED DESULFURIZATION PROCESS AND APPARATUS INTEGRATING GAS PHASE OXIDATIVE DESULFURIZATION AND HYDRODESULFURIZATION TO PRODUCE DIESEL FUEL HAVING AN ULTRA-LOW LEVEL OF ORGANOSULFUR COMPOUNDS - Desulfurization of hydrocarbon feeds is achieved by flashing the feed at a target cut point temperature to obtain two fractions. A first fraction contains refractory organosulfur compounds, which boils at or above the target cut point temperature. A second fraction boiling below the target cut point temperature is substantially free of refractory sulfur-containing compounds. The second fraction is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone operating under mild conditions to reduce the quantity of organosulfur compounds to an ultra-low level. The first fraction is contacted with gaseous oxidizing agent over an oxidation catalyst having a formula Cu | 07-17-2014 |
20140251872 | INTEGRATED DESULFURIZATION AND DENITRIFICATION PROCESS INCLUDING MILD HYDROTREATING OF AROMATIC-LEAN FRACTION AND OXIDATION OF AROMATIC-RICH FRACTION - Deep desulfurization of hydrocarbon feeds containing undesired organosulfur and organonitrogen compounds to produce a hydrocarbon product having low levels of sulfur-containing and nitrogen-containing compounds, is achieved by first subjecting the entire feed to an extraction zone to separate an aromatic-rich fraction containing a substantial amount of the refractory organosulfur and organonitrogen compounds and an aromatic-lean fraction containing a substantial amount of the labile organosulfur and organonitrogen compounds. The aromatic-lean fraction is contacted with a hydrotreating catalyst in a hydrotreating reaction zone operating under mild conditions to convert the labile organosulfur and organonitrogen compounds. The aromatic-rich fraction is oxidized to convert the refractory organosulfur and organonitrogen compounds to oxidized organosulfur and organonitrogen compounds. These oxidized organosulfur and organonitrogen compounds are subsequently removed, producing a stream containing reduced levels of organosulfur and organonitrogen compounds. | 09-11-2014 |
20140291207 | METHOD FOR PRODUCING A DIESEL FUEL - A method relating to oil refining, which can be used to produce low-sulfur diesel fuel, comprising oil demineralization and distillation, and extraction and mixing of diesel fractions, followed by hydrogen refining of the mixture. In an atmospheric tower, two diesel fractions that boil at 171-341° C. and 199-360° C. are extracted. The 199-360° C. fraction is sent for liquid extraction to purify it from benzalkylthiophens. Amide, a product of organic amine interaction with organic acid, is used as the extractant. Fractions are then mixed, maintaining the balance ratio (based on the output) of 171-341° C. and 199-360 ° C. after refining. When refined using the ASTM D-86 method, the mixture of these fractions has an end boiling point no higher than 360° C. The technical result is production of diesel fuel with a 171-360° C. fractional composition and sulfur content of no higher than 10 ppm. | 10-02-2014 |
20150060334 | METHODS AND APPARATUSES FOR PROCESSING HYDROCARBON STREAMS CONTAINING ORGANIC NITROGEN SPECIES - Methods and apparatuses for processing hydrocarbon streams containing organic nitrogen species are provided. In an embodiment, a method for processing a hydrocarbon stream containing organic nitrogen species includes adding an aqueous acidic solution to a hydrocarbon feed stream to form a reaction stream. The method further includes contacting the reaction stream with a reaction surface and reacting the aqueous acidic solution and the organic nitrogen species to form an ammonium sulfate rich stream and a lean nitrogen naphtha stream. Also, the method includes separating an ammonium sulfate rich aqueous phase and an oil phase from the ammonium sulfate rich stream. | 03-05-2015 |
20160200990 | HYDROCARBON OIL PRODUCTION METHOD | 07-14-2016 |