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| Number | Title | Issue Date |
| 7550074 | Process for treating fuel A process for preparing a gasoline including blending appropriate components together to prepare a gasoline having a final boiling point of less than 200° C. and contacting the blended gasoline as a whole with a decolorizing, activated carbon. The carbon removes at... | 06/23/2009 |
| 7339088 | Alkylbenzene refining process and apparatus Improved processes and apparatus use a finishing column with a mid-cut that provides alkylbenzene products of high purity containing less than about 1 ppmw benzene and less than about 50 ppmw heavies while accommodating enhancements in the efficiencies and the capac... | 03/04/2008 |
| 7311815 | Hydrocarbon products and methods of preparing hydrocarbon products A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may be hydrotreated to provide an n-paraffin content of greater than 50%... | 12/25/2007 |
| 7214840 | Reduction of the Bromine Index of linear alkylbenzenes In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a cataly... | 05/08/2007 |
| 7214307 | White oil from waxy feed using highly selective and active wax hydroisomerization catalyst A composition of white oil having a kinematic viscosity at 100° C. between about 1.5 cSt and 36 cSt, a viscosity index greater than an amount calculated by the equation: Viscosity Index=28×Ln(the Kinematic Viscosity at 100° C.)+105, less than 18 weight percent of... | 05/08/2007 |
| 7201839 | Desulfurization and novel compositions for same A composition comprising a metal oxide, a silica-containing material, a gallium-containing material, an aluminum-containing material, and a promoter, wherein at least a portion of the promoter is present as a reduced-valence promoter and methods of preparing such co... | 04/10/2007 |
| 7160438 | Process for removal of nitrogen containing contaminants from gas oil feedstreams The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises firs... | 01/09/2007 |
| 7128829 | Removal of impurities from liquid hydrocarbon streams A novel process effective for the removal of organic sulfur compounds, organic nitrogen compounds and light olefins from liquid hydrocarbons is disclosed. The process more specifically addresses the removal of these contaminants from aromatic compounds including ben... | 10/31/2006 |
| 7052597 | Tuning fuel composition for driving cycle conditions in spark ignition engines Tuning fuel composition delivered to a spark ignition, internal combustion engine as a function of driving cycle conditions results in improvements in one or more of fuel efficiency and combustion emissions. ... | 05/30/2006 |
| 6960700 | Adsorbent beds for removal of hydrides from hydrocarbons A process for removal of trace impurities of hydrides of arsenic, phosphorus, antimony, silicon, and boron and sulfur and oxygenates and compounds containing these impurities from a hydrocarbon stream comprising contacting the hydrocarbon stream with an adsorbent ma... | 11/01/2005 |
| 6808621 | Fuel additive and fuel refining process Metal hydride compounds, which are prepared by mixing together from about 1 to about 10 parts by molecular weight of at least one metal selected from the group consisting of silicon, aluminum, tin, and zinc; from about 1 to about 3 parts by molecular weight of an al... | 10/26/2004 |
| 6803343 | Desulfurization and novel sorbent for same A sorbent composition comprising a support and a reduced-valence noble metal can be used to desulfurize a hydrocarbon-containing fluid such as cracked-gasoline or diesel fuel. ... | 10/12/2004 |
| 6793805 | Process for capturing mercury and arsenic comprising evaporation then condensation of a hydrocarbon-containing cut A process for capturing mercury and possibly arsenic comprising at least: a) vaporising (or flashing, step a1) then condensing a hydrocarbon-containing feed (step a2) without separating said feed; b) treating the effluent from step a2 comprising at lea... | 09/21/2004 |
| 6781023 | Decreasing Br-reactive contaminants in aromatic streams Bromine reactive hydrocarbon contaminants are removed from aromatic streams by first providing an aromatic feedstream having a negligible diene level. The feedstream is contacted with an acid active catalyst composition under conditions sufficient to remove mono-ole... | 08/24/2004 |
| 6565741 | Process for desulfurization of petroleum distillates The desulfurization of petroleum distillates can be carried out by cyclic low-temperature adsorption of oxidized sulfur compounds with activated carbon followed by regeneration of the activated carbon using an organic solvent. The activated carbon used in... | 05/20/2003 |
| 6537443 | Process for removing mercury from liquid hydrocarbons Mercury is removed from crude oils, natural gas condensates and other liquid hydrocarbons by first removing colloidal mercury and solids that contain adsorbed mercury and then treating the hydrocarbons with an organic or inorganic compound containing at l... | 03/25/2003 |
| 6485633 | Process for the demercaptanization of petroleum distillates The demercaptanizaiton of petroleum distillates can be carried out by sorption of the mercaptan with activated carbon and oxidation of the sorbed mercaptan to disulfide at between approximately 20° C. to 55° C. The activated carbon used in the process i... | 11/26/2002 |
| 6482316 | Adsorption process for producing ultra low hydrocarbon streams The instant invention is directed to a method for reducing the amount of sulfur in hydrocarbon streams comprising the steps of: (a) contacting a hydrocarbon stream comprising hydrocarbons and sulfur compounds with an adsorbent selective for adsorption of said ... | 11/19/2002 |
| 6483001 | Layered adsorption zone for hydrogen production swing adsorption The present invention describes a pressure swing adsorption (PSA) apparatus and process for the production of purified hydrogen from a feed gas stream containing heavy hydrocarbons (i.e., hydrocarbons having at least six carbons). The apparatus comprises ... | 11/19/2002 |
| 6454936 | Removal of acids from oils The instant invention is directed to a process for decreasing the amount of acids contained in oils by forming a water-in-oil emulsion and utilizing solids.... | 09/24/2002 |
| 6428685 | Desulfurization and novel sorbents for same Particulate sorbent compositions which are suitable for the removal of sulfur from streams of cracked-gasoline or diesel fuel are provided which have increased porosity, improved resistance to deactivation through the addition of a calcium compound select... | 08/06/2002 |
| 6402939 | Oxidative desulfurization of fossil fuels with ultrasound Fossil fuels are combined with a hydroperoxide in an aqueous-organic medium and subjected to ultrasound, with the effect of oxidizing the sulfur compounds in the fuels to sulfones. Due to their high polarity, the sulfones thus formed are readily removed f... | 06/11/2002 |
| 6368496 | Decreasing bi-reactive contaminants Bromine reactive hydrocarbon contaminants are removed from aromatic streams by first providing an aromatic feedstream having a negligible diene level. The feedstream is contacted with an acid active catalyst composition under conditions sufficient to remo... | 04/09/2002 |
| 6254766 | Desulfurization and novel sorbents for same Particulate sorbent compositions comprising a mixture of zinc oxide, silica, alumina and a substantially reduced valence nickel are provided for the desulfurization of a feedstream of cracked-gasoline or diesel fuels in a desulfurization zone by a process... | 07/03/2001 |
| 6245223 | Selective adsorption process for resid upgrading (law815) The present invention is a process to remove a major portion of metals and coke precursors from a hydrocarbon stream. The steps of the process include contacting the feedstream with a hydrocarbon insoluble adsorbent, recovering the oil which does not adso... | 06/12/2001 |
| 6123836 | Process for the removal of acid compounds from a hydrocarbon stream Process for the removal of acid compounds contained in a hydrocarbon process stream by passing the process stream through a fixed bed of an adsorption material at conditions where the acid compounds adsorb on the material and withdrawing a purified hydroc... | 09/26/2000 |
| 6111162 | Process for removing oxygenated contaminants from hydrocarbon streams Process for selectively removing oxygenated contaminants from streams prevalently containing hydrocarbons with from 3 to 8 carbon atoms characterized in that it comprises an adsorption step wherein said contaminants are adsorbed by an adsorbent essentiall... | 08/29/2000 |
| 6107535 | Process for removing nitrogenated and sulfurated contaminants from hydrocarbon streams A process for selectively removing nitrogenated and/or sulfurated contaminants from streams prevalently containing hydrocarbons with from 3 to 8 crbon atoms characterized in that it comprises an adsorption step wherein said contaminants are adsorbed by an... | 08/22/2000 |
| 5997732 | Clay treatment process for white mineral oil Severely contaminated white mineral oils which fail the RCS specification are treated using an acid-treated bentonite clay, such as TONSIL CO 630G. The white oil products produced in the treatment may be a USP grade white oil.... | 12/07/1999 |
| 5942121 | Method and apparatus for filtering, degassing, dehydrating and removing products of ageing in petroleum oils The invention relates to separating different substances, more concretely, to a method and apparatus for filters, degassing, dehydrating and removing products of ageing in insulating and other petroleum oils. The technical result is that the aforesaid pha... | 08/24/1999 |
| 5891324 | Acid-containing activated carbon for adsorbing mercury from liquid hydrocarbons An activated carbon based adsorbent carrying an acid is provided for eliminating mercury or mercury compounds contained in hydrocarbons. Preferably the activated carbon base is provided with more than 80 ml/g micropore volume having radii less than 8 angs... | 04/06/1999 |
| 5817229 | Catalytic hydrocarbon upgrading process requiring no external hydrogen supply A hydrocarbon feedstock is brought into contact with activated carbon at a temperature of about 300° to about 650° C. and a pressure of about 0-1000 psig in the absence of added hydrogen to reduce the content of aromatic, sulfur and nitrogen compounds c... | 10/06/1998 |
| 5474671 | Process for removing oil from liquefied petroleum gas This invention concerns a process and apparatus for removing oil from liquefied petroleum gases. In a preferred embodiment, the activated carbon bed is pretreated with odorant thereby enabling oil to be removed from odorized liquefied petroleum gases with... | 12/12/1995 |
| 5466363 | Integrated process for hydrotreating heavy oil, then manufacturing an alloy or steel using a carbon-based catalyst Use of a carbon-based catalyst composition, particularly activated-carbon, optionally containing at least one metal selected from Ni, Co, Mo, W, Fe, or mixtures thereof, for heavy oil hydroprocessing. Recovery and partial gasification of the catalyst to p... | 11/14/1995 |
| 5466364 | Performance of contaminated wax isomerate oil and hydrocarbon synthesis liquid products by silica adsorption The daylight stability, foaming characteristics, color, engine performance test behavior, oxygenates content, and thermal stability of wax isomerate oils and/or hydrocarbon synthesis liquid products are improved by the process of contacting the aforesaid ... | 11/14/1995 |
| 5454933 | Deep desulfurization of distillate fuels A process for providing distillate products which are substantially sulfur free, which process comprises subjecting a distillate stream to conventional hydrodesulfurization conditions including a catalyst comprised of a Group VI metal and at least one Gro... | 10/03/1995 |
| 5358634 | Process for treating heavy oil A process for treating heavy oil by contacting the oil with hydrogen in a reactor containing an activated carbon catalyst having a specified range of Alpha value, and average pore diameter, and pore distribution, to reduce the content of nickel and vanadi... | 10/25/1994 |
| 5217603 | Hydrotreatment process A process for hydrotreating a hydrocarbon oil contaminated with suspended solid particles and dissolved metallic compounds, comprising the contacting of the oil at an elevated temperature in the presence of hydrogen with porous inorganic oxide particles h... | 06/08/1993 |
| 5164076 | Process for the adsorption of hydrogen sulfide with clinoptilolite molecular sieves Processes are disclosed for the separation of hydrogen sulfide from feedstreams containing hydrogen sulfide and hydrocarbons by adsorption using a clinoptilolite adsorbent containing cations having ionic radii of from about 1.10 to 1.40 Angstroms. The pro... | 11/17/1992 |
| 5098556 | Treatment of off-specification white mineral oil made by two stage hydrogenation The invention relates to a method for removing RCS from off-spec white mineral oil prepared by catalytic hydrogenation by filtering the off-spec white mineral oil through a bleaching clay, such as a smectite clay, particularly an acid treated montmorillon... | 03/24/1992 |
