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Class 208/950 - PROCESSING OF "FISCHER-TROPSCH" CRUDE


Subclass of Class 208 - Mineral oils: processes and products
Definition: Collection of documents drawn to chemical conversion, fractionation,
No. of patents: 127
Last issue date: 09/23/2008


1        
NumberTitleIssue Date
7427348Process for the production of paraffinic middle distillates
A process with an increased efficiency for the preparation of middle distillates with excellent properties at low temperatures and substantially without oxygenated organic compounds, starting from a synthetic mixture of hydrocarbons at least partly waxy, containing ...
09/23/2008
7384536Processes for making lubricant blends with low brookfield viscosities
Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight ...
06/10/2008
7364650Fischer tropsch composition and process
The present invention provides an upgraded synthetic gasoline having a true boiling point (TBP) range of between 50° C.-300° C., a sulphur content of less than 1 ppm, a nitrogen content of less than 1 ppm, an aromatics content of between 0.01%-35% by weight, an ol...
04/29/2008
7345211Synthetic hydrocarbon products
The invention includes a process for producing synthetic middle distillates and synthetic middle distillates produced therefrom. In one embodiment, the process comprises fractionating a hydrocarbon synthesis product to at least generate a light middle distillate, a ...
03/18/2008
7345210Blending for density specifications using Fischer-Tropsch diesel fuel
The present invention includes a method for adjusting a fluid density. In one embodiment, a method for upgrading a petroleum-derived hydrocarbonaceous fraction comprises providing a synthetically-derived hydrocarbonaceous fraction, wherein the synthetically-derived ...
03/18/2008
7332072Process to prepare a waxy raffinate
A process to prepare a waxy raffinate product by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch derived feed, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tr...
02/19/2008
7332073Process for removing contaminants from Fischer-Tropsch feed streams
A process for removing contaminants from the products of a Fischer-Tropsch synthesis reaction, said contaminants comprising (i) particulates having an effective diameter of greater than 1 micron and (ii) at least 5 ppm of aluminum in aluminum-containing contaminants...
02/19/2008
7300565Process to prepare a microcrystalline wax and a middle distillate fuel
The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of compounds having at least 60 or more carbon atoms and compound...
11/27/2007
7285206Process to prepare a lubricating base oil and a gas oil
A process to prepare a lubricating base oil and a gas oil by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-T...
10/23/2007
7285693Process to prepare a catalytically dewaxed gas oil or gas oil blending component
A process to prepare a catalytically dewaxed gas oil or gas oil blending component by performing the following steps: (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product; (b) separating the product of step (a) into at least one or more fuel fr...
10/23/2007
7282134Process for manufacturing lubricating base oil with high monocycloparaffins and low multicycloparaffins
A process for manufacturing a lubricating base oil by: a) performing Fischer-Tropsch synthesis on syngas to provide a product stream; b) isolating from said product stream a substantially paraffinic wax feed having less than about 30 ppm total nitrogen and sulfur, a...
10/16/2007
7282139Optimization of gas-to-liquids hydrocracker
A method for optimal production of synthetic diesel and naphtha from a hydrocracker includes hydrocracking a synthetic heavy hydrocarbon feed comprising an α value so as to form a diesel and a naphtha; selecting a desired diesel-to-naphtha ratio; calculating, based...
10/16/2007
7270741Method of purifying a water-rich stream produced during a fischer-tropsch reaction
This invention relates to an improved method of separating non-acid chemicals from a water rich stream produced during a Fischer-Tropsch (FT) reaction. ...
09/18/2007
7198710Isomerization/dehazing process for base oils from Fischer-Tropsch wax
A method for producing lubricant base oils is provided comprising the steps of: (a) separating a feedstock into a light lubricant base oil fraction and a heavy fraction; (b) hydroisomerizing the fractions over a medium pore size molecular sieve catalyst under hydroi...
04/03/2007
7195706Finished lubricating comprising lubricating base oil with high monocycloparaffins and low multicycloparaffins
A process for manufacturing a finished lubricant by: a) performing Fischer-Tropsch synthesis on syngas to provide a product stream; b) isolating from said product stream a substantially paraffinic wax feed having less than about 30 ppm total nitrogen and sulfur, and...
03/27/2007
7179364Production of stable olefinic Fischer-Tropsch fuels with minimum hydrogen consumption
The present invention relates to a stable, low sulfur, olefinic distillate fuel blend component derived from a Fischer-Tropsch process and a process for producing this stable, low sulfur, olefinic distillate fuel blend component. The stable, low sulfur, olefinic dis...
02/20/2007
7156978Process for the production of middle distillates by hydroisomerisation and hydrocracking of two fractions from feeds originating from the fischer-tropsch process
A system comprising: a paraffin feed produced by the Fischer-Tropsch process is fractionable into at least three fractions: an intermediate fraction boiling between T1 and T2, T1 being in the range 120–200° C. and T2 being more than 30...
01/02/2007
7141157Blending of low viscosity Fischer-Tropsch base oils and Fischer-Tropsch derived bottoms or bright stock
A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with a Fischer-Tropsch derived bottoms fraction; lubricating base oil com...
11/28/2006
7128767Method to upgrade low rank coal stocks
The ash content of raw coals, lignite, and other carbonaceous materials is reduced by leaching the high-ash material with an aqueous acidic waste product produced by a Fischer-Tropsch reaction. The acidic aqueous waste is mixed with coal and process conditions are d...
10/31/2006
7122113Method for solubilising asphaltenes in a hydrocarbon mixture
Method for solubilising asphaltenes in an asphaltenes-containing hydrocarbon mixture by adding thereto an effective amount of a dendrimeric compound, and a hydrocarbon mixture comprising, in addition to hydrocarbons, asphaltenes and at least one dendrimeric compound...
10/17/2006
7083713Composition of lubricating base oil with high monocycloparaffins and low multicycloparaffins
A composition of lubricating base oil having a weight percent of all molecules with at least one aromatic function less than 0.30, a weight percent of all molecules with at least one cycloparaffin function greater than 10, and a ratio of weight percent of molecules ...
08/01/2006
7053254Process for improving the lubricating properties of base oils using a Fischer-Tropsch derived bottoms
A method for improving the lubricating properties of a distillate base oil characterized by a pour point of 0 degrees C. or less and a boiling range having the 10 percent point falling between about 625 degrees F. and about 790 degrees F. and the 90 percent point fa...
05/30/2006
7045554Method for improved Fischer-Tropsch catalyst stability and higher stable syngas conversion
The present invention is generally related towards methods for preparing and using a more stable synthesis catalysts. In particular, the present invention is directed towards treating synthesis catalysts with low levels of oxygen to deactivate the smaller more unsta...
05/16/2006
7045055Method of operating a wormgear drive at high energy efficiency
This invention is directed to a method of operating a wormgear drive at high energy efficiency comprising filling an oil reservoir with a wormgear lubricant comprising an isomerized Fischer-Tropsch derived distillate fraction having a low traction coefficient and op...
05/16/2006
6962651Method for producing a plurality of lubricant base oils from paraffinic feedstock
A method for producing lubricant base oils is provided comprising the steps of: (a) hydroisomerizing a feedstock over a medium pore size molecular sieve catalyst under hydroisomerization conditions to produce an isomerized product having a pour point of greater than...
11/08/2005
6949180Low toxicity Fischer-Tropsch derived fuel and process for making same
A method for preparing low toxicity Fischer-Tropsch fuels suitable for use in a diesel engine and Fischer-Tropsch derived fuel compositions having low toxicity suitable for use in diesel engines characterized by a boiling range distribution wherein the 5 weight perc...
09/27/2005
6929754Solid/liquid separation system for multiphase converters
Methods and apparatus for removing wax products from a slurry used in a Fischer-Tropsch reactor. The preferred embodiments of the present invention are characterized by a solid/liquid separation system that removes liquid products from a slurry by drawing the fluid ...
08/16/2005
6908543Method for retarding fouling of feed heaters in refinery processing
A method of minimizing the formation of polymers and other heavy molecular weight products upon heating of a hydrocarbon stream in a hydroconversion process is described. Specifically, sufficient hydrogen-containing gas is added to the hydrocarbon stream before heat...
06/21/2005
6860909Low emissions F-T fuel/cracked stock blends
A blend useful as a diesel fuel, as well as a method for its production, comprising a high quality Fischer-Tropsch derived distillate boiling in the range of a diesel fuel blended with a cracked stock boiling in the range of a diesel fuel wherein the final blend con...
03/01/2005
6833078Solid-liquid separation system
Methods and apparatus for separating liquid products and catalyst fines from a slurry used in a Fischer-Tropsch reactor. A settling system continuously or intermittently removes catalyst fines from the slurry and is coupled with catalyst-liquid separation system tha...
12/21/2004
6833064Wide cut Fischer Tropsch diesel fuels
A wide cut Fischer-Tropsch derived diesel fuel is produced wherein the distillate boils in a wider range than a conventional diesel fuel while providing favorable low temperature properties and environmentally beneficial effects. In particular, the fuel comprises a ...
12/21/2004
6822126Process for converting waste plastic into lubricating oils
Provided is a continuous process for converting waste or virgin plastics into lube oils. The plastic feed is maintained in a heater at preferred temperatures of 150° C.-350° C. The feed is continuously passed to a pyrolysis reactor preferably maintained at a tempe...
11/23/2004
6768035Manufacture of high octane alkylate
A Fischer-Tropsch C3-C4 olefin stream is simultaneously dehydrated and isomerized to convert alcohols to olefins and 1-butenes to 2-butenes and thereby lower the oxygenate content. Another Fischer-Tropsch fraction is hydrotreated and hydrocrack...
07/27/2004
6743962Preparation of high octane alkylate from Fischer-Tropsch olefins
A Fischer-Tropsch C3-C4 olefin stream is treated to lower the oxygenate content to below 4000 ppm. Another Fischer-Tropsch fraction is hydrotreated and hydrocracked to provide an isobutane-containing stream. The treated C3-C4
06/01/2004
6730221Dynamic settler
Catalyst particles are separated from the wax in a reactor slurry reactor by feeding a portion of the slurry to a dynamic settler. Heavier catalyst particles settle and are removed as the slurry at the bottom of the settler is recycled back to the reactor. Clarified...
05/04/2004
6723889Process for producing a highly paraffinic diesel fuel having a high iso-paraffin to normal paraffin mole ratio
A process for producing a diesel fuel having at least 70% C10+ paraffins, wherein the iso-paraffin to normal paraffin mole ratio is 5:1 and higher. This diesel fuel is produced by from a feed containing at least 40% C10+ normal paraffins and at...
04/20/2004
6717024Slurry hydrocarbon synthesis with liquid hydroisomerization in the synthesis reactor
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in...
04/06/2004
6703353Blending of low viscosity Fischer-Tropsch base oils to produce high quality lubricating base oils
A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with at least one additional Fischer-Tropsch derived distillat...
03/09/2004
6703535Process for upgrading fischer-tropsch syncrude using thermal cracking and oligomerization
A process for upgrading a Fischer-Tropsch feedstock which comprises (a) recovering from a Fischer-Tropsch reactor a Fischer-Tropsch wax fraction and a Fischer-Tropsch condensate fraction, wherein the Fischer-Tropsch condensate fraction contains alcohols b...
03/09/2004
6699385Process 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
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