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Class 208/213 - With solid catalyst or absorbent


Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes wherein the hydrodesulfurization takes place in
No. of patents: 455
Last issue date: 03/27/2012


1                      
NumberTitleIssue Date
8142646Process 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 cataly...
03/27/2012
8043495Process to hydrodesulfurize FCC gasoline resulting in a low-mercaptan product
A process for reducing the sulfur content of a hydrocarbon stream, including: feeding a hydrocarbon stream including sulfur compounds to a catalytic distillation reactor having one or more hydrodesulfurization reaction zones; feeding hydrogen to the catalytic distil...
10/25/2011
8034233Process for desulphurizing olefinic gasolines to limit the mercaptans content
The invention concerns a process for hydrodesulphurizing a gasoline containing less than 0.1% by weight of sulphur derived from a catalytic cracking unit or other conversion units, said process comprising at least one hydrodesulphurization reactor using a bimetallic...
10/11/2011
7959794Hydrodesulphurisation method comprising a stripping section and a vacuum fractionation section
The invention concerns a facility and a process for hydrodesulphurizing gas oil or vacuum distillate comprising at least one hydrodesulphurization reaction section, at least one stripping section and at least one fractionation section in which the fractionation sect...
06/14/2011
7780846Sulfur adsorbent, desulfurization system and method for desulfurizing
A method for producing a substantially desulfurized hydrocarbon fuel stream at temperatures less than 100° C. including providing a nondesulfurized fuel cell hydrocarbon fuel stream and passing the fuel stream through a sulfur adsorbent system containing a speciali...
08/24/2010
7758745Diesel desulfurization method
A diesel desulfurization method has various steps including: implementing a modified oxidative desulfurization (UAOD) process. The UAOD has the steps of: mixing diesel fuel with room temperature ionic liquid, oxidant, phase transfer catalyst, and acid catalyst in a ...
07/20/2010
7713408Process for the catalytic hydrotreating of silicon containing hydrocarbon feed stock
Process for the catalytic hydrotreating of a hydrocarbon feed stock containing silicon compounds comprising the steps of contacting the feed stock in presence of hydrogen with a first hydrotreating catalyst being arranged in at least two reactors being ...
05/11/2010
7597798Method for reducing the amount of high molecular weight organic sulfur picked-up by hydrocarbon streams transported through a pipeline
A process for removing relatively low levels of high molecular weight organic sulfur from hydrocarbon streams, particularly from streams that have picked-up such sulfur while being transported through a pipeline. The hydrocarbon stream containing the organic sulfur ...
10/06/2009
7556729Method for the selective hydrodesulfurization of an olefin containing hydrocarbon feedstock
Described is a method for the selective hydrodesulfurization of an olefin-containing hydrocarbon feedstock that uses a catalyst composition having a high content of a nickel component and an effective but small amount of a molybdenum component supported on a porous ...
07/07/2009
7544285Catalyst composition preparation and use
A bulk metal oxide catalyst composition of the general formula (X)b(M)c(Z)d(O)e  (I) wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z r...
06/09/2009
7513990Process for sulfurization of catalysts for hydrotreatment
The invention relates to a process for sulfurization of catalysts for hydrotreatment, in particular the catalysts for hydrotreating refractory oxides by sulfurization, in which said catalysts are subjected to a sulfurization stage under a gas atmosphere that contain...
04/07/2009
7438798Method for removing sulfur compounds from gasoline or diesel fuel using molecularly imprinted polymers
A method and product for removing sulfur compound molecules from gasoline or diesel fuel includes exposing the gasoline or diesel fuel to a plurality of molecularly imprinted polymer beads (MIPS) that have receptor sites on the surfaces thereof that include imprints...
10/21/2008
7435330Heavy oil reforming method, an apparatus therefor, and gas turbine power generation system
A heavy oil reforming method which reforms a heavy oil to give a fuel suitable for a gas turbine, eliminates sulfur and vanadium, i.e., harmful components, from a heavy oil, and enables almost all the hydrocarbons in the heavy oil to be used in gas turbine combustio...
10/14/2008
7435336Process for carrying out gas-liquid countercurrent processing
The present invention relates to a process for carrying our gas-liquid countercurrent processing comprising passing the liquid material and the gas reactant in countercurrent flow through the fixed bed of catalyst in a reactor, characterized in that the fixed bed of...
10/14/2008
7435337Use of caesium-exchanged faujasite type zeolites for intense desulphurization of a gasoline cut
The invention describes the application of caesium-exchanged X, Y or LSX type faujasite zeolites for intense desulphurization of FCC gasoline, and to a method for preparing said zeolites. ...
10/14/2008
7431824Process for recycling an active slurry catalyst composition in heavy oil upgrading
The instant invention is directed to a process employing slurry catalyst compositions in the upgrading of heavy oils. The slurry catalyst composition is not permitted to settle, which would result in possible deactivation. The slurry is recycled to an upgrading reac...
10/07/2008
7431831Integrated in-line pretreatment and heavy oil upgrading process
A new residuum full hydroconversion slurry reactor system has been developed that allows the catalyst, unconverted oil, products and hydrogen to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixture is partial...
10/07/2008
7431828Process for desulphurization of a hydrocarbon stream with a reduced consumption of hydrogen
A two-stage hydrotreating process is disclosed wherein a hydrocarbon stream is first desulphurized followed by a dehydrogenation step, which process comprises in combination contacting the feed and hydrogen over a hydrotreating catalyst at hydrotreating conditions, ...
10/07/2008
7431823Process for upgrading heavy oil using a highly active slurry catalyst composition
The instant invention is directed to a new residuum full hydroconversion slurry reactor system that allows the catalyst, unconverted oil and converted oil to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixtu...
10/07/2008
7431822Process for upgrading heavy oil using a reactor with a novel reactor separation system
Applicants have developed a new residuum full hydroconversion slurry reactor system that allows the catalyst, unconverted oil, hydrogen, and converted oil to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixtu...
10/07/2008
7431827Process for the production of low sulfur, low olefin gasoline
A process for the production of low sulfur, low olefin gasoline wherein a cracked naphtha, such as a full boiling range cracked naphtha, is first separated by fractional distillation into at least two fractions while simultaneously selectively hydrogenating the poly...
10/07/2008
7431825Gasoline sulfur reduction using hydrotalcite like compounds
The present invention describes novel methods for reducing sulfur in gasoline with hydrotalcite like compound additives, calcined hydrotalcite like compounds, and/or mixed metal oxide solution solutions. The additives can optionally further comprise one or more meta...
10/07/2008
7422679Low CO for increased naphtha desulfurization
Naphtha hydrodesulfurization selectivity is increased by reducing the amount of COX (CO plus ½ CO2) in the hydrodesulfurization reaction zone to less than 100 vppm. While this is useful for non-selective hydrodesulfurization, it is particularl...
09/09/2008
7419582Process for hydrocracking a hydrocarbon feedstock
A hydrocracking process wherein the feedstock is hydrotreated and the liquid and gaseous effluent from the hydrotreater is directly introduced into the upper end of a hydrocracking vessel which provides a liquid seal to prevent the passage of the gaseous stream cont...
09/02/2008
7419585Process for upgrading residua
A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is preferably atomized so that the Sauter mean diameter of the residua feedstock ...
09/02/2008
7419586Two-stage hydrodesulfurization of cracked naphtha streams with light naphtha bypass or removal
A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically-bound sulfur and olefins. The olefinic naphtha stream is selectively desulfurized in a first hydrodesulfurization stage. The effluent stream f...
09/02/2008
7416653Systems and methods of producing a crude product
Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The crude product is a liquid mixture at 25° C. and 0.101 MPa. O...
08/26/2008
7399402Method for hydrotreatment of a mixture of hydrocarbon compounds, rich in olefins and aromatic compounds
Process for the hydrotreatment of a mixture of C4 to C8 hydrocarbon-based compounds, rich in olefins and monoaromatic compounds, by hydrogenation in the presence of a solid catalyst, characterized in that an ammonia precursor is introduced into the charge of hydroca...
07/15/2008
7384540Two-step method for middle distillate hydrotreatment comprising two hydrogen recycling loops
A process for hydrotreating a hydrocarbon feed comprises at least two steps with intermediate stripping of the effluent from the first step with pressurized hydrogen substantially free of impurities which are undesirable for the catalyst for the second step, in part...
06/10/2008
7384542Process for the production of low sulfur diesel and high octane naphtha
A process for the production of low sulfur diesel and high octane naphtha. ...
06/10/2008
7381322Resid cracking apparatus with catalyst and adsorbent regenerators and a process thereof
This invention provides a resid cracking apparatus comprising a riser, reactor, stripper cum separator with adjustable outlets in flow communication with adsorbent and catalyst regenerators for converting hydrocarbon residues containing higher concentration of conra...
06/03/2008
7371318Method and catalysts for the elimination of sulphur compounds from the diesel fraction
The invention relates to a process for the elimination of sulphur compounds from the diesel fraction, which is characterized in that an oxidising reaction of said sulphur compound is carried out by using at least an organic-inorganic composite as catalyst, said comp...
05/13/2008
7368617Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream
Acetylenes and dienes in a stream containing hydrogen, methane, C2-C6 olefins and paraffins, C2-C6 acetylenes and dienes, benzene, toluene, xylenes, and other C6+ components are hydrogenated in a downflow boilin...
05/06/2008
7361265Process for the selective hydrodesulfurization of olefinic naphtha streams
A process for the hydrodesulfurization of cracked olefin streams is described, the process aiming at reducing the sulfur content while at the same time minimizing the hydrogenation degree of said olefins. In order to dilute the added reaction hydrogen, the process m...
04/22/2008
7361266Method of refining petroleum and refining apparatus
The present invention is related to a method of subjecting a feed oil to a refining process. This method includes a fractional distillation step 1 in which a feed oil is separated into a distillate oil M1 and a bottom oil M2 by a distillation pr...
04/22/2008
7357856Nitrogen removal from olefinic naphtha feedstreams to improve hydrodesulfurization versus olefin saturation selectivity
A two stage process for selectively hydrodesulfurizing olefinic and sulfur and nitrogen-containing naphtha feedstreams wherein the first stage is a nitrogen removal stage to produce a naphtha feedstream having reduced levels of nitrogen compounds and a second stage ...
04/15/2008
7351327Process for the selective desulfurization of a mid range gasoline cut
A process for concurrently fractionating and treating a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and...
04/01/2008
7347931Partially coked catalysts that can be used in the hydrotreatment of fractions that contain sulfur-containing compounds and olefins
The invention relates to a catalyst for the selective hydrodesulfurization of hydrocarbon-containing feedstocks that comprise sulfur-containing compounds and olefins. This catalyst comes in a sulfurized form and comprises a substrate that is selected from among the ...
03/25/2008
7348288Catalyst composition
A process comprises passing a contaminated gaseous stream through a photocatalytic stage and, thereafter, through a catalytic stage. ...
03/25/2008
7342145Process for refining liquefied petroleum gas in a commercial scale
The present invention relates to a novel process for refining the liquefied petroleum gas (LPG) in a commercial scale. The process comprises: sequentially performing fine desulfurization and mercaptan conversion of the LPG after alcohol amine treatment through desul...
03/11/2008
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