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8137530 |
Process for producing petroleum coke
A process is provided for producing petroleum coke that is high in strength and sufficiently small in thermal expansion coefficient and sufficiently suppressed from puffing. The process includes...
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8133316 |
Process for preparing an asphalt mixture
A process for preparing an asphalt mixture from recycled asphalt pavement (RAP), virgin aggregate, filler and first and second binder materials, is disclosed. The process comprises steps of...
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8092671 |
Method for processing hydrocarbon pyrolysis effluent
A method is disclosed for treating gaseous effluent from a hydrocarbon pyrolysis unit to provide steam cracked tar of reduced asphaltene and toluene insolubles content. The method is suitable for...
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8022118 |
Drag reduction of asphaltenic crude oils
A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such...
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8007657 |
Preparation and treating of bituminous compositions
Described is the use, for preparing or treating bituminous compositions, of at least one compound selected among: esters of glycolic, lactic and gluconic acids, methylic, ethylic and isobutylic...
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7988846 |
Methods and systems for modifying asphalts
A method for modifying asphalt comprises blowing an oxygen-containing gas through a base asphalt at a high gas flow rate while simultaneously agitating the base asphalt at a high shear rate and at...
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7968020 |
Hot asphalt cooling and pelletization process
Systems and methods for pelletizing hot asphaltenes are provided. Asphaltenic hydrocarbons can be dispersed to provide two or more asphaltenic particles. The asphaltenic hydrocarbons can be at a...
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7906010 |
Use of steam cracked tar
The invention relates to the use of steam cracked tar with the bottoms product of a flash drum integrated with a pyrolysis furnace. In embodiments, the steam cracked tar is added to fuel oil.
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7906011 |
Methods and systems for manufacturing modified asphalts
Methods and systems for efficiently manufacturing modified asphalt materials include agitating a base asphalt at a high shear rate using an in-line mixer equipped with a rotor-stator mixing tool...
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7901563 |
Preparation of industrial asphalt
The present invention relates to a method for preparing an industrial asphalt comprising (1) heating an asphalt flux to a temperature which is within the range of about 400° F. (204° C.) to 550° F....
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7572365 |
Modified thermal processing of heavy hydrocarbon feedstocks
The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It...
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7537686 |
Inhibitor enhanced thermal upgrading of heavy oils
A method for upgrading heavy oils by contacting the heavy oil with an inhibitor additive and then thermally treating the inhibitor additized heavy oil. The invention also relates to the upgraded...
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7374659 |
Methods and systems for modifying asphalts
A method for modifying asphalt comprises blowing an oxygen-containing gas through a base asphalt at a high gas flow rate while simultaneously agitating the base asphalt at a high shear rate and at...
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7318890 |
Pitch fractionation and high softening point pitch
A process for fractionating crude pitch by direct contact heating with molten metal is disclosed. The crude pitch, which may contain water, contaminants and/or distillables is heated by direct...
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7318891 |
Noah's pitch process
A process for producing pitch from pitch precursors, such as wood tar, coal tar or petroleum fractions is disclosed. Direct contact heat exchange of the pitch precursor with molten metal,...
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7282135 |
Low viscosity, high carbon yield pitch product
A low viscosity, high coking value petroleum tar material having a high coking value as compared to standard petroleum tars and containing at least one biodiesel material dissolved therein, and a...
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7279017 |
Method for converting heavy oil residuum to a useful fuel
A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable....
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7252755 |
Viscosity modification of heavy hydrocarbons
A low-viscosity, high-softening point heavy hydrocarbon material having a viscosity-reducing amount of at least one biodiesel material dissolved in a heavy hydrocarbon, and a method for producing...
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7105083 |
Activated carbons and method for obtaining same from a partly mesophase and partly mesogenic pitch
A method for obtaining activated carbons from a partly mesophased and partly mesogenic pitch containing less than about 40% of the a resins, more than about 40% of type β resins and between about ...
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7094331 |
Viscosity modification of heavy hydrocarbons using dihydric alcohols
A low viscosity, high softening point heavy hydrocarbon material having a viscosity reducing amount of at least one dihydric alcohol dissolved therein, and a method for producing such heavy...
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7067050 |
Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content
A binder pitch material includes a petroleum pitch and asphalt fraction obtained from petroleum crude oil and has a significantly lower polycyclic aromatic hydrocarbon composition than a coal tar...
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7037955 |
Additives and methods for reducing odor
Additives and methods for reducing or eliminating odor in oil based media. The additives comprise an essential oil, an essential oil component, or mixtures thereof.
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7008526 |
Processes for producing coke, artificial graphite and carbon material for negative electrode of non-aqueous solvent type secondary battery and pitch composition used therefor
When a pitch composition prepared by mixing 100 parts by weight of mesophase pitch with 10 to 1,000 parts by weight of coal tar pitch, is heat-treated at a temperature of 500° C. or higher, it is ...
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6717021 |
Solvating component and solvent system for mesophase pitch
A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of...
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6689295 |
Carbonaceous porous body and method for producing the same
The present invention provides a method of manufacturing an exfoliated graphite/phenol resin composite foam of a porosity of 50-95%, a density of 0.1-0.8 g/cm3, by forming under contact pressure or...
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6659684 |
System for repairing bituminous wearing courses
A method for repairing a damaged area of a bitutinous wearing course. The method comprises heating the damaged area, applying a liquid to the damaged area that rejuvenates damaged bitumen, adding...
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6530965 |
Method of converting heavy oil residuum to a useful fuel
A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable....
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6478951 |
Compatibilizer for crumb rubber modified asphalt
A compatibilizer and process for use in making crumb rubber modified asphalt. The compatibilizer causes the crumb rubber to completely interact with the asphalt, thereby improving the rheological...
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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...
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6383365 |
Low softening point petroleum pitch and sealer
A 40 petroleum pitch is disclosed. A high melting point petroleum pitch is blended with a high boiling normally liquid petroleum derived hydrocarbon stream to form a mixture having a softening...
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6352637 |
High coking value pitch
A high coking value pitch with a relatively low softening point is disclosed. A pitch is distilled or thermally processed to produce an intermediate pitch with an increased coking value and...
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6342171 |
Process of stabilizing a carbonaceous pitch-based foam
A carbon-carbon composite material is made by providing an open-celled carbon foam preform, and densifying the preform with carbonaceous material. The open-celled carbon foam preform may be oxygen...
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6325986 |
Method for reducing hydrogen chloride emissions from air-blown asphalt
In a method for reducing hydrogen chloride emissions from an asphalt air-blowing process, an asphalt is subjected to an air-blowing process where air is bubbled through hot asphalt to raise the...
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6313367 |
Inhibition of asphaltene deposition in crude oil production systems
It has been discovered that various ester and ether reaction products are excellent asphaltene deposition inhibitors or dispersants for use in hydrocarbons such as crude oils. The asphaltene...
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6270652 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers
An improved process is disclosed for producing a unique metals-containing anisotropic pitch suitable for carbon fiber manufacture. Soluble, aromatic-organometallic compounds are added to a...
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6251307 |
Metal passivation for anode grade petroleum coke
The present invention relates to the use of petroleum coke for the manufacture of carbonaceous anodes for the aluminum smelting industry. The inclusion of Group 4 and/or Group 13 metal compounds as...
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6204420 |
Synergistic mixtures of phosphoric esters with carboxylic acids or carboxylic acid derivatives as asphaltene dispersants
The invention relates to a synergistic mixture of A from 5 to 99% by weight of a carboxylic acid having more than 4 carbon atoms, an ethercarboxylic acid containing C18 -C22 -alkyl, C18 -C22...
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6194344 |
Process for preparing carbonaceous material carrying ultrafinely dispersed metal
A process for the preparation of a high-softening-point pitch rich in mesopores having a softening point measured by temperature gradient method of 150° C. or higher, a weight loss by heating up ...
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6187172 |
Viscosity reduction of crude oils and residuums
Adverse effects of asphaltenes in liquid hydrocarbons are reduced by incorporating into the liquid hydrocarbon sufficient concentration, e.g., about 0.5 to 5 weight % of a dispersant to disassemble...
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6183629 |
Process for producing petroleum residuum-water slurry
Use is made of a high-speed agitator comprising vessel 2 rotated at a low speed and bladed agitating element 3 rotated at a high speed in direction reverse to that of the vessel 2, the bladed...
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5961814 |
Pitch foam products
An improved process for the preparation of a pitch foam with a microcellular structure and a uniform pore size comprises the steps of (a) pressing a quantity of a pitch to provide a pressed...
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5948237 |
Use of sarcosinates as asphaltene-dispersing agents
The present invention relates to crude oils and products derived therefrom, comprising, as asphaltene-dispersing agent, sarcosinates of the formula (I) ##STR1## in which R1 is C7 -C21 -alkyl or...
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5843298 |
Method of production of solids-free coal tar pitch
A process for converting coal tar containing quinoline-insoluble particles (Q.I.) produces a substantially Q.I.-free coal tar pitch and a separate, Q.I.-containing coal tar pitch. Dehydrated coal...
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5811607 |
Composite shingle particle salvage system
A process and apparatus for the recovery of hydrocarbons from hydrocarbon containing composite materials, particularly roofing materials including asphalt and solid components to recover asphalt...
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5746906 |
Coal tar pitch blend having low polycyclic aromatic hydrocarbon content and method of making thereof
A coal tar pitch/petroleum pitch blend is disclosed together with a method of making the same. In accordance with the invention, a crude coal tar material is selected according to specific...
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5650454 |
Rubber additive and rubber compounds
A rubber additive is provided, which comprises crosslinked fatty acid and starch, and preferably further comprises a carrier, preferably an asphalt carrier. The rubber additive increases tear...
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5644018 |
Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch
Mesophase pitch that has a softening point of no more than 250° C., a pyridine-insolubles content of no more than 50% and a n-heptane solubles content of 3-10%, with the n-heptane solubles ...
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5632884 |
Asphalt compositions, method of preparation, and use
A modified or bridged asphalt composition. The composition can be obtained by treating at least one asphalt base with an acid-derived compound having at least two functional groups capable,...
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5611910 |
Method for reducing sulfur emissions in processing air-blown asphalt
In a method for reducing emissions from an asphalt blowing process, an emission reducing additive is added to the asphalt prior to blowing, or early in the blowing process. The emission reducing...
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5540905 |
Optically anisotropic pitch for manufacturing high compressive strength carbon fibers and method of manufacturing high compressive strength carbon fibers
An optically anisotropic pitch, which is suited for manufacturing particularly high compressive strength carbon fibers in a stable fashion, with satisfactory productivity and continuously, and also...
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