| Patent Number |
Title Of Patent |
Date Issued |
| RE37649 |
Draft tube for catalyst rejuvenation and distribution |
April 9, 2002 |
| Catalyst in a slurry phase reactor is rejuvenated and uniformly distributed in said reactor using a substantially vertical draft tube fully immersed in the slurry which utilizes a rejuvenating gas injected substantially near the bottom of the substantially vertical draft tube whereby cat |
| RE37515 |
Rejuvenation of hydrocarbon synthesis catalyst |
January 15, 2002 |
| A cobalt- or ruthenium-containing hydrocarbon synthesis catalyst, subjected to short term, reversible, partial deactivation in a slurry synthesis process can be rejuvenated, i.e., at least about 80+% catalyst activity recovery, by treating the catalyst in the presence of liquid hydrocarb |
| RE37229 |
Hydrocarbon synthesis reactor employing vertical downcomer with gas disengaging means |
June 12, 2001 |
| The operation of a hydrocarbon synthesis reactor and catalyst distributed in the reaction slurry therein are improved by the presence in said reactor of one or more vertical downcomers open at both ends with gas disengaging areas located at their top end. The downcomer which circulates |
| RE37046 |
Process for recycling and purifying condensate from a hydrocarbon or alcohol synthesis process |
February 6, 2001 |
| This invention relates to a process of recycling condensate from a hydrocarbon or alcohol synthesis, wherein the condensate comprises water and contaminants such as lower molecular weight hydrocarbons, alcohols, and other oxygenates. A hot gaseous mixture comprising CH.sub.4 and steam |
| RE35461 |
Lubricating oil additives |
February 25, 1997 |
| Improved stability of overbased phenates, particularly when formulated with overbased sulphonates, as well as improved foaming tendency and viscosity is obtained by treated the overbased phenate, either during or subsequent to the overbasing process, with from 0.1 to 10 wt. %, preferably |
| RE33080 |
Adamantane catalyzed paraffin isomerization |
October 3, 1989 |
| A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization. |
| RE29100 |
Selective hydroperoxidation of polyolefins in an aqueous slurry |
January 4, 1977 |
| Polyolefins are selectively hydroperoxidized in an aqueous slurry with an ozone-oxygen mixture at temperatures between 65.degree. and 100.degree. C for a time which does not exceed one hour to introduce sufficient hydroperoxides for later graft copolymerization while minimizing forma |
| H495 |
Drilling fluids based on hydrocarbon soluble polyampholytes |
July 5, 1988 |
| An oil-based drilling mud which comprises:(a) a hydrocarbon liquid substantially immiscible in water;(b) about 1 to about 100 parts by weight of water per 100 parts of the hydrocarbon liquid;(c) about 2 to about 50 lb/bbl. of at least one emulsifier;(d) about 0.5 to about 5 lb/bbl. of a wetting |
| D282287 |
Shingle |
January 21, 1986 |
|
| 6835301 |
Production of low sulfur/low aromatics distillates |
December 28, 2004 |
| A process for hydroprocessing a hydrotreated liquid distillate stream to produce a stream exceptionally low in sulfur as well as aromatics. A hydrotreated distillate stream is further hydrotreated in a co-current reaction zone wherein the reaction product is passed to a separation drum |
| 6620312 |
Process for making a lube basestock with excellent low temperature properties |
September 16, 2003 |
| A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt % or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerized under conditions to 370.degree. C. hydrocatalytic |
| 6495029 |
Countercurrent desulfurization process for refractory organosulfur heterocycles |
December 17, 2002 |
| A process for the hydrodesulfurization (HDS) of the multiple condensed ring heterocyclic organosulfur compounds present in petroleum and chemical streams. The stream is passed through at least one reaction zone countercurrent to the flow of a hydrogen-containing treat gas, and through |
| 6458855 |
Fischer-tropsch process water emulsions of hydrocarbons (law548) |
October 1, 2002 |
| Stable hydrocarbon in water emulsions are formed by emulsifying the hydrocarbon with a non-ionic surfactant and water obtained from the Fischer-Tropsch process. |
| 6383366 |
Wax hydroisomerization process |
May 7, 2002 |
| Waxy feeds are treated under hydroisomerization conditions to produce good yields of an isomerate product of high VI by using a silica-alumina based catalyst in which the silica-alumina has a pore volume less of 0.99 ml/gm (H.sub.2 O), an alumina content in the range of 35 to 55 wt % and |
| 6355850 |
Manufacture of electrical oil enriched with hydrofined gas oil for improved oxidation and electr |
March 12, 2002 |
| Electrical oils having improved uninhibited oxidation and electrical resistance are derived by blending a substantially nitrogen and sulfur free paraffinic or naphthenic base oil with a hydrofined light gas oil having a sulfur to nitrogen weight ratio of greater than 100:1 wherein the |
| 6352639 |
Superheating atomizing steam with hot FCC feed oil |
March 5, 2002 |
| An atomizing gas, such as steam, and a hot fluid comprising a hot liquid to be atomized, are passed under pressure, through separate fluid conduits in a heat exchange means, in which the hot liquid heats the steam to a superheat temperature, by indirect heat exchange. The superheated ste |
| 6352638 |
Two-stage process for converting residua to gasoline blendstocks and light olefins |
March 5, 2002 |
| A two-stage process for converting petroleum residua and other low value oils to high valued gasoline blendstocks and light olefins. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated |
| 6344490 |
Removable filter for slurry hydrocarbon synthesis process |
February 5, 2002 |
| A removable filter for separating and filtering slurry liquid from solid particles includes one or more filter sections connected by a filtrate conduit. Each section comprises a plurality of vertical, hollow, sintered metal filter elements horizontally arranged across a manifold connecte |
| 6331575 |
Preparation of high activity catalysts; the catalysts and their use |
December 18, 2001 |
| A process for the preparation of a catalyst useful for conducting carbon monoxide conversion reactions, especially a Fischer-Tropsch catalyst, use of the catalyst for conducting such reactions, especially Fischer-Tropsch reactions, and the composition produced by said process. In the |
| 6325833 |
Emulsion blends |
December 4, 2001 |
| Emulsion blends are provided containing Fischer-Tropsch hydrocarbons, non-Fischer-Tropsch hydrocarbons, water, and a surfactant. |
| 6315920 |
Electrical insulating oil with reduced gassing tendency |
November 13, 2001 |
| 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 tendency can be provided to the |
| 6309432 |
Synthetic jet fuel and process for its production |
October 30, 2001 |
| Clean distillate useful as a jet fuel or jet blending stock is produced from Fischer-Tropsch wax by separating wax into heavier and lighter fractions; further separating the lighter fraction and hydroisomerizing the heavier fraction and that portion of the light fraction above about |
| 6303548 |
Partly synthetic multigrade crankcase lubricant |
October 16, 2001 |
| A base oil for an SAE 0W-40 lubricant composition comprises a mineral basestock, a polyalpha olefin and synthetic ester lubricant. The SAE 0W-40 lubricant comprises the base oil and a mixture of polymethacylate and olefin copolymer or hydrogenated diene VI improvers. |
| 6303019 |
Treatment of refinery feedstreams to remove peroxides and prevent subsequent refinery fouling us |
October 16, 2001 |
| The present invention is a process to reduce the fouling of equipment for processing petroleum feedstreams. The steps of the process include mixing the feedstream with an aqueous electrolyte forming an oil-in-water dispersion, passing the dispersion through an electrochemical cell, p |
| 6301546 |
Process for detecting and monitoring changes in properties of fluidized bed solids by pressure d |
October 9, 2001 |
| A process for detecting, and monitoring, changes in the properties of a fluidized bed of particulate solids, especially a fluidized bed of particulate catalytic solids at elevated temperature wherein a low molecular weight hydrocarbon is converted, in the presence of steam and oxygen |
| 6300537 |
Method for the use of new silicoaluminophosphas having an AEL structure to convert naptha to C2 |
October 9, 2001 |
| Disclosed are silicoaluminates (SAPOs) having unique silicon distributions, a method for their preparation and their use as naphtha cracking catalysts. More particularly, the new SAPOs have a high silica:alumina ratio and favorable Si atom distribution. |
| 6300268 |
Process for the reactivation of sulfur deactivated cobalt titania catalysts |
October 9, 2001 |
| A process for the desulfurization, and reactivation of a sulfur deactivated catalyst constituted of cobalt composited with a titania support. The sulfur deactivated cobalt titania catalyst is first contacted with a gaseous stream of molecular oxygen at temperature sufficiently high to |
| 6299760 |
Nickel molybodtungstate hydrotreating catalysts (law444) |
October 9, 2001 |
| A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product. |
| 6296757 |
Synthetic diesel fuel and process for its production |
October 2, 2001 |
| Diesel fuels or blending stocks having excellent lubricity, oxidative stability and high cetane number are produced from non-shifting Fischer-Tropsch processes by separating the Fischer-Tropsch product into a lighter and heavier fractions, e.g., at about 700.degree. F., subjecting th |
| 6294587 |
Water emulsions of Fischer-Tropsch liquids (LAW516) |
September 25, 2001 |
| Fischer-Tropsch liquids, useful as distillate fuels are emulsified with water and a non-ionic surfactant. |
| 6294082 |
Process for solvent extraction of hydrocarbons providing an increased yield of raffinate |
September 25, 2001 |
| A process for upgrading a hydrocarbon oil is provided which comprises introducing the oil and an aromatic extraction solvent containing 0.1 to 10 vol % water into an extraction zone for contact of the oil and solvent therein whereby an extract solution is formed; and injecting water into |
| 6284807 |
Slurry hydrocarbon synthesis process with increased catalyst life |
September 4, 2001 |
| A slurry catalytic hydrocarbon synthesis process which employs a catalyst comprising a supported cobalt component achieves a short term catalyst half life of more than 10 days, by using a syngas feed which contains less than fifty parts per billion of a combined total amount of HCN and |
| 6284806 |
Water emulsions of Fischer-Tropsch waxes |
September 4, 2001 |
| Hydrocarbon in water emulsions comprising Fischer-Tropsch process water, at least 20 to about 90 weight percent of a Fischer-Tropsch wax, a first nonionic surfactant having an HLB of at least 11 and a second nonionic surfactant having an HLB less than 11. Said emulsions are liquid at roo |
| 6284127 |
Catalytic dewaxing with trivalent rare earth metal ion exchanged ferrierite |
September 4, 2001 |
| A process for dewaxing waxy hydrocarbonaceous materials, such as hydrocarbon fuel and lubricating oil fractions to reduce their cloud and pour points comprises reacting the material with hydrogen in the presence of a dewaxing catalyst comprising at least one metal catalytic component |
| 6277158 |
Additive concentrate for fuel compositions |
August 21, 2001 |
| An additive concentrate for use in fuels, especially in gasoline for internal combustion engines, comprising (a) 0.2 to 10 wt. % ashless friction modifier which is liquid at room temperature and pressure selected from (i) n-butylamine oleate or derivatives thereof, (ii) a substance c |
| 6274029 |
Synthetic diesel fuel and process for its production |
August 14, 2001 |
| Diesel fuels or blending stocks having excellent lubricity, oxidative stability and high cetane number are produced from non-shifting Fischer-Tropsch processes by separating the Fischer-Tropsch product into a lighter and heavier fractions, e.g., at about 700.degree. F., subjecting th |
| 6270734 |
Multizone downcomer for slurry hydrocarbon synthesis process |
August 7, 2001 |
| A downcomer for producing at least two slurries having different solids and gas concentrations from a single three phase slurry of particulate solids and gas bubbles in a slurry liquid has two or more concentric gas and solids disengaging zones, each having an open fluid conduit dependin |
| 6258258 |
Process for treatment of petroleum acids with ammonia |
July 10, 2001 |
| The present invention is a process for decreasing the acidity of a starting acidic crude oil by contacting an acidic crude with an effective excess of ammonia dissolved in said crude to form an ammonia-continuous oil discontinuous phase at a temperature and conditions sufficient to form |
| 6258255 |
Method for enhancing asphalt properties |
July 10, 2001 |
| The invention relates to a method for making an asphalt product having an enhanced flash point and lower volatility, comprising vacuum distilling a blend of a high boiling petroleum fraction having an initial boiling point of at least 270.degree. C. and a crude to produce a product aspha |
| 6251305 |
Esterification of acidic crudes |
June 26, 2001 |
| The present invention relates to a process for reducing the acidity of a petroleum oil containing organic acids comprising treating said petroleum oil containing organic acids with an effective amount of an alcohol at a temperature and under conditions sufficient to form the correspondin |
| 6245709 |
Supported Ni-Cu hydroconversion catalyst |
June 12, 2001 |
| Nickel-copper catalysts supported on an amorphous silica-alumina acidic carrier, preferably containing a binder, and having an iso-electric point of .gtoreq.6.5 are used to hydroisomerize paraffins, particularly Fischer-Tropsch paraffins, boiling at 350.degree. F.+ into lighter, more |
| 6245222 |
Additive enhanced solvent deasphalting process (law759) |
June 12, 2001 |
| The invention relates to a process for enhancing demetallation of metals containing hydrocarbonaceous feedstocks by contacting a metals containing hydrocarbonaceous feedstock at a sufficient temperature and pressure with an additive containing a polyoxyalkylene moiety said additive havin |
| 6245221 |
Desulfurization process for refractory organosulfur heterocycles |
June 12, 2001 |
| A process for the hydrodesulfurization (HDS) of multiple condensed ring heterocyclic organosulfur compounds present in petroleum and petrochemical streams over noble metal-containing catalysts under relatively mild conditions. The noble metal is selected from Pt, Pd, Ir, Rh, and poly |
| 6241952 |
Countercurrent reactor with interstage stripping of NH3 and H2S in gas/liquid contacting zones |
June 5, 2001 |
| A reactor for reacting liquid petroleum or chemical streams wherein the liquid stream flows countercurrent to the flow of a treat gas, such as a hydrogen-containing gas. The reactor is comprised of at least one vertically disposed reaction zone, each containing a bed of catalyst, whe |
| 6240971 |
Composite structures having improved containment strength |
June 5, 2001 |
| Composite fiber reinforced structures, such as pipes or storage tanks, having improved resistance to microcracking and delamination and improved containment strength are disclosed. The walls of the structures comprise at least one layer comprising a plurality of continuous reinforcing gl |
| 6239085 |
Grease composition containing pao, alkylaromatic synthetic fluid and white oil for industrial be |
May 29, 2001 |
| A grease of enhanced thermal stability and improved soap utilization comprises a major amount of a base oil comprising polyalphaolefin, alkyl aromatic synthetic fluid and white oil and a minor amount of soap thickener. |
| 6239082 |
Petroleum quench oil |
May 29, 2001 |
| Petroleum quench oils effective for high speed cooling of heated metals and metal hardening are disclosed. The petroleum quench oils contain natural or synthetic base oils having a minimum flash point of about 120.degree. C. and a combination of poly(iso)alkylene and poly(iso)alkylene su |
| 6238550 |
Silicoaluminophosphates having AEL structure, a method for their preparation and their use as ca |
May 29, 2001 |
| Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the hydroprocessing of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and may be prepared from |
| 6235687 |
Method for producing lubrication oils possessing anti rust properties containing acidic anti rus |
May 22, 2001 |
| Lubricating oils exhibiting anti rust properties are obtained by adding to the lubricating oil an acidic anti rust additive and an acid scavenger such as carbodiimide, in a specific sequence. |
| 6232279 |
Fuel-economy lubrication-effective engine oil composition |
May 15, 2001 |
| Lubricant compositions suitable for use in automotive engines, especially internal combustion engines, the lubricant having a kinematic viscosity at 100.degree. C. of less than 12.5 mm.sup.2 /s and a high temperature, high shear dynamic viscosity (i.e. at a temperature of 150.degree. C. |
