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| Number | Title | Issue Date |
| 7491314 | Process to produce pipeline-transportable crude oil from feed stocks containing heavy hydrocarbons A process for the production of a pipeline-transportable crude oil from a bitumen feed, the process comprising: (1) dividing the bitumen feed into two fractions, the first fraction comprising between 20 and 80 wt % of the feed, the second fraction compr... | 02/17/2009 |
| 7459072 | Method for processing naphtha Process for the work-up of naphtha, wherein a) naphtha or a stream produced from naphtha in a pretreatment step is separated in a membrane unit into a stream A which is depleted in aromatics and a stream B which is enriched in aromatics, with the aromat... | 12/02/2008 |
| 7407571 | Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds A novel apparatus for producing sweet synthetic crude from a heavy hydrocarbon feed includes: an upgrader for receiving the heavy hydrocarbon feed and producing a distillate fraction including sour products, and high-carbon content by-products; a gasifier for receiv... | 08/05/2008 |
| 7354508 | Process to prepare a heavy and a light lubricating base oil The invention relates to a process to prepare a heavy and a light lubricating base oil from a partly isomerized Fischer-Tropsch derived feedstock, the feedstock having an initial boiling point of below 400° C. and a final boiling point of above 600° C. by (a) sepa... | 04/08/2008 |
| 7347928 | Process to prepare a spindle oil, light machine oil and a medium machine oil base oil grade from the bottoms fraction of a fuels hydrocracking process A process to prepare a spindle oil, light machine oil and a medium machine oil base oil grade by: (a) performing a separate catalytic dewaxing on a spindle oil fraction, a light machine oil fraction and a medium machine oil fraction as obtained in a vac... | 03/25/2008 |
| 7297250 | Method of and apparatus for processing heavy hydrocarbon feeds The present invention comprises a method for processing a heavy hydrocarbon feed including: supplying the heavy hydrocarbon feed to a heater for heating the heavy hydrocarbon feed; supplying the heated heavy hydrocarbon feed to an atmospheric fractionating tower for... | 11/20/2007 |
| 7276151 | Gas turbine fuel oil and production method thereof and power generation method Feed oil is subject to atmospheric distillation, to thereby be separated into light oil or light distillate and atmospheric residue oil. The light distillate is catalytically contacted with pressurized hydrogen in the presence of a catalyst, resulting in a first hyd... | 10/02/2007 |
| 7270739 | Fractionating and further cracking a Cfraction from a naphtha feed for propylene generation The present invention relates to a process for selectively producing C3 olefins from a catalytically cracked or thermally cracked naphtha stream by fractionating the naphtha feed to obtain at least a C6 rich fraction and feeding the C6 | 09/18/2007 |
| 7267759 | Fractionating and further cracking a Cfraction from a naphtha feed for propylene generation The present invention relates to a process for selectively producing C3 olefins from a catalytically cracked or thermally cracked naphtha stream by fractionating the naphtha feed to obtain a C6 fraction and feeding the C6 fraction ei... | 09/11/2007 |
| 7250544 | Process for selective hydrogenation using a catalytic reactor with a hydrogen-selective membrane A process for selective hydrogenation of polyunsaturated compounds that are contained in a hydrocarbon feedstock in the presence of a catalytic reactor with a hydrogen-selective membrane comprises a) the introduction of said feedstock co-mixed with a first amount hy... | 07/31/2007 |
| 7175754 | Process for the production of low benzene gasoline A process for the production of low benzene content gasoline is disclosed wherein a full boiling range naphtha is fractionated to produce a light naphtha, a medium naphtha and a heavy naphtha. The benzene is contained in the medium naphtha and this stream is subject... | 02/13/2007 |
| 7089784 | Device for evaluating the signal from a viscosity sensor A device is provided for evaluating the signal from a viscosity sensor having an amplifying circuit. The amplification of the amplifying circuit is controlled by a temperature signal from a temperature sensor. ... | 08/15/2006 |
| 7056869 | Hydrocarbon fluids Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235° C. to 400° C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic content below 2% and an aniline p... | 06/06/2006 |
| 7045669 | Dual pressure catalytic distillation hydrogenation column system for the front end of an ethylene plant The charge gas from the thermal cracking of a hydrocarbon feedstock is processed in a front-end catalytic distillation hydrogenation system of an olefins plant to more effectively recover ethylene and propylene product and to process the by-products. The rate of fou... | 05/16/2006 |
| 6858131 | Gas turbine fuel oil and production method thereof and power generation method Feed oil is subject to atmospheric distillation, to thereby be separated into light oil or light distillate and atmospheric residue oil. The light distillate is catalytically contacted with pressurized hydrogen in the presence of a catalyst, resulting in a first hyd... | 02/22/2005 |
| 6841062 | Crude oil desulfurization This invention relates to a crude oil desulfurization process which comprises hydrodesulfurizing a crude oil feed in a crude desulfurization unit. The desulfurized crude oil is then separated into a light gas oil fraction, a vacuum gas oil fraction and a vacuum resi... | 01/11/2005 |
| 6841061 | Antigelling agent for hydrocarbon mixture containing conjugated diene and method of preventing clogging of apparatus for separating and purifying the mixture An Anti-gelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the molecule, and precursor compounds capable of forming an NO radical, (... | 01/11/2005 |
| 6699385 | Process for converting waxy feeds into low haze heavy base oil The present invention discloses a process for producing a low haze heavy base oil including the steps of: (a) providing a heavy waxy feed stream having an initial boiling point greater than 900° F. and having a paraffin content of at least 80%; (b) separ... | 03/02/2004 |
| 6669872 | Electrical insulating oil with reduced gassing tendency An electrical oil having reduced gassing tendency includes a major amount of a paraffinic or naphthenic basestock and a blend of certain hindered phenols, especially a blend of 2,6-di-t-butyl phenol and 2,6-di-t-butyl cresol. A further enhanced gassing te... | 12/30/2003 |
| 6602404 | Process for naphtha reforming A process comprises separating a naphtha feed into a fraction comprising C7- hydrocarbons and a heavy C8+ fraction, separating the C8+ fraction into a light fraction comprising C8 and/or C8 ... | 08/05/2003 |
| 6579442 | Methods and compositions for inhibiting polymerization of vinyl monomers Methods and compositions for inhibiting the polymerization of vinyl monomers are disclosed. Combinations of nitroxyl compounds and aliphatic amines are effective at inhibiting the polymerization of vinyl monomers under both processing and storage conditio... | 06/17/2003 |
| 6454934 | Petroleum processing method A petroleum processing method comprising the steps of: performing an atmospheric distillation of crude oil; collectively hydrodesulfurizing the resultant distillates consisting of gas oil and fractions whose boiling point is lower than that of gas oil in ... | 09/24/2002 |
| 6410811 | Selective hydrogenation process comprising partial separation of hydrogen by a membrane upstream of a reactive column The process of the invention is a process for selective hydrogenation of a hydrocarbon feed containing hydrogen and C2+ hydrocarbons, characterized in that it comprises at least one step for separating a fraction of the hydrogen cont... | 06/25/2002 |
| 6379534 | Pour point depression unit using mild thermal cracker A method for lowering the cloud/pour point of a waxy crude oil in locations where size and/or weight of the facility may need to be limited (i.e. arctic zones and offshore). The major components of the system comprise a fractionation/quench tower and a re... | 04/30/2002 |
| 6348137 | Method and apparatus for fractional distillation An apparatus and a method for separating a liquid mixture by fractional distillation. The apparatus includes at least two chambers with a conduit from the lower portion of a chamber which contains liquid to the upper portion of an adjacent chamber, a sour... | 02/19/2002 |
| 6339181 | Multiple feed process for the production of propylene This invention relates to a process to produce propylene from a hydrocarbon feed stream, preferably a naphtha feed stream, comprising C5 and C6 components wherein a light portion having a boiling point range of 120° C. or less is introduced into a reacto... | 01/15/2002 |
| 6338791 | High octane number gasolines and their production using a process associating hydro-isomerization and separation The invention provides a high octane number gasoline pool comprises at least 2% of di-branched paraffins containing 7 carbon atoms, and a process for producing this gasoline pool by hydro-isomerizing a feed constituted by a C5 to C8 cut which comprises at... | 01/15/2002 |
| 6315920 | Electrical insulating oil with reduced gassing tendency An electrical oil having reduced gassing tendency includes a major amount of a paraffinic or naphthenic basestock and a blend of certain hindered phenols, especially a blend of 2,6-di-t-butyl phenol and 2,6-di-t-butyl cresol. A further enhanced gassing te... | 11/13/2001 |
| 6261442 | Process for converting hydrocarbons by treatment in a distillation zone comprising withdrawing a stabilized distillate, associated with a reaction zone, and its use for hydrogenating benzene The invention provides a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing an overhead vapour distillate and a bottom effluent, associated with an at least partially external reaction zone comprising ... | 07/17/2001 |
| 6238549 | Process for converting hydrocarbons by treatment in a distillation zone associated with a reaction zone, comprising re-contacting a vapor distillate with the feed, and its use for hydrogenating benzine The invention concerns a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing an overhead vapor distillate and a bottom effluent, associated with an at least partially external reaction zone comprising a... | 05/29/2001 |
| 6207040 | Process for the gasolines production The present invention refers to a process for the production of high-octane and low benzene content gasolines according to a cycle where a crude oil is fed into an atmospheric distillation unit from which a fraction is obtained called virgin naphtha seat ... | 03/27/2001 |
| 6174428 | Process for converting hydrocarbons by treatment in a distillation zone comprising a circulating reflux, associated with a reaction zone, and its use for hydrogenating benzene The invention provides a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing a bottom effluent and a vapour distillate, associated with an at least partially external reaction zone comprising at least o... | 01/16/2001 |
| 6107533 | Foulant reducing upstream hydrogenation unit systems Process flow sequences for the reduction of equipment fouling in the fractional distillation of light end hydrocarbon components, such as those produced by pyrolysis or steam cracking, wherein conventional multiple hydrogenation unit configurations are re... | 08/22/2000 |
| 6083379 | Process for desulfurizing and aromatizing hydrocarbons A process for desulfurizing and enhancing the octane of cracked gasoline by first aromatizing the cracked gasoline and, second, hydrodesulfurizing the resulting intermediate product stream.... | 07/04/2000 |
| 6054496 | Method for transporting a heavy crude oil produced via a wellbore from a subterranean formation to a market location and converting it into a distillate product stream using a solvent deasphalting process A method for producing a heavy crude oil from a subterranean formation through a wellbore, transporting the heavy crude oil to a market location and converting the heavy crude oil into a product distillate hydrocarbon stream and by-products such as heat, ... | 04/25/2000 |
| 5997724 | Method of making a shale oil modifier A shale oil modifier is made of a crude shale oil dehydrogenated sufficiently to attain a viscosity of between about 1200-1800 poise at 60° C. The crude shale oil has sufficient basic nitrogen content so that the dehydrogenated crude shale oil exhibits n... | 12/07/1999 |
| 5980698 | Method for vacuum distillation of a liquid product and an equipment for performing thereof A method for vacuum distillation includes separation of a liquid product delivered to a reservoir under vacuum into a vapour-gaseous phase and at least one liquid fraction, withdrawal of the vapour-gaseous phase from the reservoir using a vacuum-creating ... | 11/09/1999 |
| 5958365 | Method of producing hydrogen from heavy crude oil using solvent deasphalting and partial oxidation methods Heavy crude oil is recovered and processed at a refinery through (a) a distillation zone(s), (b) a solvent deasphalting unit (c ) a high pressure air partial oxidation gasifier to produce a CO-rich gas mixture including hydrogen, (d) a shift reactor and (... | 09/28/1999 |
| 5830345 | Process of producing a debenzenated and isomerized gasoline blending stock by using a dual functional catalyst A process for producing a debenzeneated gasoline blending stock from a benzene-containing refinery stream by using a dual function catalyst. The benzene-containing refinery stream contains at least 2 wt % of benzene is hydrogenated to cyclohexane and then... | 11/03/1998 |
| 5693191 | Process for recovery of anhydrous hydrogen chloride from mixtures with non-condensable gases A process is provided for the recovery of hydrogen chloride in anhydrous form from a dry (containing less than about 500 parts per million by weight of water) mixture of hydrogen chloride with one or more non-condensable gases and which may also contain c... | 12/02/1997 |
