Abstract: A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.

Abstract: A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.

Abstract: A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.

Abstract: The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke.

Abstract: 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 reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.

Abstract: 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 esters of glutaric, succinic and adipic acids, and ethers or esters of a product resulting from internal dehydration of a sugar, preferably a hydrogenated sugar. Also described is a method for preparing or treating such compositions and the resulting compositions.

Abstract: A method of applying building a pavement structure using a polymer modified hot-applied tack coat is disclosed. This polymer modified tack coat is non-adhesive at ambient temperatures, and, thus, also non tracking. The tack is applied while hot, but cools quickly. The subsequent application of hot mix asphalt results in a superior bond between the asphalt layer and the tack layer. It is particularly well suited to bonded friction course applications since it removes the necessity of specialized spray paving machinery and allows the use of conventional asphalt distributors and pavers.

Abstract: 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 an elevated temperature for a period of time that is effective to substantially improve at least two paving properties of the base asphalt. In preferred embodiments, modified asphalts are produced having both substantially improved rutting resistance and substantially improved fatigue resistance as compared to the base asphalt.

Abstract: 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 temperature of from about 175° C. to about 430° C. The asphaltenic particles can be contacted with a film of cooling medium. The film can have a thickness of from about 1 mm to about 500 mm. At least a portion of the asphaltenic particles can be solidified by transferring heat from the asphaltenic particles to the cooling medium to provide solid asphaltenic particles. The solid asphaltenic particles can be separated from at least a portion of the cooling medium.

Abstract: 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 while simultaneously exposing the asphalt to oxygen by blowing an oxygen-containing gas at a high gas flow rate through openings in the rotor-stator mixing tool and heating the asphalt at an elevated temperature.

Abstract: 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.

Abstract: 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. (288° C.) to produce a hot asphalt flux, (2) sparging an oxygen containing gas through the hot asphalt flux for a period of time which is sufficient to increase the softening point of the asphalt flux to a value of at least 100° F. (38° C.), to produce an underblown asphalt composition; and (3) mixing a sufficient amount of a polyphosphoric acid throughout the underblown asphalt composition while the underblown asphalt composition is maintained at a temperature which is within the range of 200° F. (93° C.) to 550° F. (288° C.) to attain a softening point which is within the range of 185° F. (85° C.) to 250° F. (121° C.) and a penetration value of at least 15 dmm at 77° F. (25° C.) to produce the industrial asphalt.

Abstract: A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a particulate solid material to form a heavy hydrocarbon slurry and hydrocracked in a slurry hydrocracking unit to produce vacuum gas oil (VGO) and pitch. A first vacuum column separates VGO from pitch, and a second vacuum column further separates VGO from pitch. As much as 15 wt-% of VGO can be recovered by the second vacuum column and recycled to the slurry hydrocracking unit. A pitch composition is obtained which can be made into particles and transported without sticking together.

Abstract: 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 preparing reduced viscosity tar useful as a fuel blending stock, or feedstock for producing carbon black, while reducing or eliminating the need for externally sourced lighter aromatics additives to meet viscosity specifications. The method comprises drawing steam cracked tar from a separation vessel, e.g., a primary fractionator or tar knock-out drum, cooling the tar, and returning it to the separation vessel to effect lower overall tar temperatures within the separation vessel, in order to reduce viscosity increasing condensation reactions. An apparatus for carrying out the method is also provided.

Abstract: A cost-effective solution is provided for eliminating refinery process waste, including spent catalytic and non-catalytic adsorbent materials, as well as adsorbate process reject materials derived from desorption, while minimizing conventional waste handling demands. An asphalt composition includes asphalt and spent adsorbent material from a solvent deasphalting unit. The asphalt can comprise asphaltic material obtained from a solvent deasphalting unit, and spent adsorbent material in the asphalt composition was previously utilized in the solvent deasphalting unit. The asphalt composition can also include process reject materials.

Abstract: 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 pitch having a like softening point. The pitch material is useful as a binder material for various applications such as clay pigeons.

Abstract: A high coking value pitch prepared from coal tar distillate and has a low softening point and a high carbon value while containing substantially no quinoline insolubles is disclosed. The pitch can be used as an impregnant or binder for producing carbon and graphite articles.

Abstract: 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 utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents.

Abstract: 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 utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents.

Abstract: 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 product from the inhibitor enhanced thermal treatment process.

Abstract: 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 pitch having a like softening point. The pitch material is useful as a binder material for various applications such as clay pigeons.

Abstract: 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 an elevated temperature for a period of time that is effective to substantially improve at least two paving properties of the base asphalt. In preferred embodiments, modified asphalts are produced having both substantially improved rutting resistance and substantially improved fatigue resistance as compared to the base asphalt.

Abstract: 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, preferably maintained as a metal continuous bath, heats the pitch precursor to a temperature sufficient to induce thermal polymerization reactions and produce a pitch product.

Abstract: 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 contact heat exchange with molten metal, preferably maintained as a metal continuous bath, operating at a temperature of 100 to 600° C. The molten metal heating zone is maintained at a temperature and pressure sufficient to vaporize a desired amount of contaminants or volatile material from crude pitch to produce pitch product having a desired softening point. New pitch materials, having a softening point above those achievable by conventional techniques, are also produced.

Abstract: deposition in a formation, wellbore, near wellbore region, and production tubing. Compositions of the invention comprise an asphaltene solvent and a viscosity reducing agent, the asphaltene solvent and viscosity reducing agent present in a ratio so as to substantially reduce viscosity of an asphaltene-containing material while substantially negating deposition of asphaltenes either in a reservoir, in production tubing, or both when mixed or otherwise contacting the asphaltene-containing material Methods of the invention comprise forcing a composition comprising an asphaltene solvent and a viscosity reducing agent to contact an asphaltene-containing hydrocarbon in an underground geologic formation, and producing from the formation a production composition comprising at least some of the treatment composition and at least some of the asphaltene-containing hydrocarbon under conditions sufficient to substantially negate deposition of asphaltenes in the formation.

Abstract: 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 method for producing such material, are disclosed.

Abstract: 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. The viscosity of the residuum is reduced by heat or a combination of heat and a diluent and subsequently mixed with water such that the mixing is high shear mixing. This results in the formation of an emulsion of predispersed residuum in an aqueous matrix. The emulsion is formed such that the aqueous matrix is in a size distribution suitable for use as a combustible fuel.

Abstract: 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 such low-viscosity, high-softening point heavy hydrocarbon material are disclosed.

Abstract: 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 ? resins and between about 5 and 30% of type ? resins by activating the pitch preceded by its optional carbonization.

Abstract: 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 hydrocarbon material, are disclosed.

Abstract: 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 pitch having a like softening point. The pitch material is useful as a binder material for various applications such as clay pigeons.

Abstract: A method of making the saturated aircraft brake preform using a coal tar pitch having a softening point in the range of about 160° C. to 240° C. Also, a product having natural rubber in the formulation and the method of making the product using a coal tar pitch having a softening point in the range of about 140° C. to 200° C. A mesophase pitch is formed from quinoline insoluble free coal tar pitch distillate from a high efficiency evaporative distillation process.

Abstract: 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.

Abstract: 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 possible to produce a high-density coke at a high yield while avoiding the foaming of the mesophase pitch. In addition, when the coke is graphitized at a temperature of 2,000° C. or higher, it is possible to obtain an artificial graphite having a high graphitization degree. Further, when the coke is first pulverized and then graphitized at a temperature of 2,000° C. or higher, it is possible to obtain a high-crystallinity graphite powder which can be suitably used as a carbon material for a negative electrode of non-aqueous solvent type secondary battery having a high discharge capacity and a high charge-discharge efficiency.

Abstract: 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 method for producing such material, are disclosed.

Abstract: Fractions derived from a high sulfur content crude oil, having a sulfur content of about 2 wt. % or greater, is hydrotreated to produce a petroleum pitch not only having a low sulfur content of about 1 wt % or less but also a low polycyclic aromatic hydrocarbon (PAH) content of about 13,000 mg/kg or less.

Abstract: 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 such low-viscosity, high-softening point heavy hydrocarbon material are disclosed.

Abstract: 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 method for producing such material, are disclosed.

Abstract: A description follows of an aqueous dispersion of heavy oil residues, suitable for undergoing combustion with a low emission of SOx, comprising: (a) a heavy oil residue; (b) a dispersing agent; (c) a desulfurizing agent selected from CaCO3, MgCO3, dolomite and relative mixtures; (d) a desulfurizing agent with stabilizing and anti-corrosive properties selected from MgO, Mg(OH)2, CaO, Ca(OH)2 and relative mixtures; (e) water; the weight percentage of (e) with respect of the sum of (a) + (e) being at least 15%.

Abstract: 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 pitch having a like softening point. The pitch material is useful as a binder material for various applications such as clay pigeons.

Abstract: 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 about 285° to about 500° C. (about 550° F.-932° F.). At least 80% of the carbon atoms of the hydrocarbons are aromatic as characterized by carbon 13 NMR. The aromatic hydrocarbons are selected from a group consisting of aromatic compounds having 2 to 5 aromatic rings, substituted aromatic compounds having 2 to 5 aromatic rings wherein said substituents are alkyl groups having 1 to 3 carbons, hydroaromatic compounds having 2 to 5 rings, substituted aromatic compounds having 2 to 5 rings wherein said substituents are alkyl groups having 1 to 3 carbons, and mixtures thereof.

Abstract: 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 reduced pressure at a temperature of 140-200° C. a mixture comprising 100 parts by weight of powdered and/or crushed exfoliated graphite and 40-240 parts by weight of phenol resin; an exfoliated graphite/phenol resin composite foam obtained by the method; and a method of obtaining an exfoliated graphite/glassy carbon composite foam of a porosity of 50-95%, a density 0.1-0.8 g/cm3 with volumetric baking shrinkage of 10% or less by baking the exfoliated graphite/phenol resin composite foam.

Abstract: 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 new material to the damaged area in an amount required to level the area, and compacting the new material. The invention also provides a new composition for rejuvenating damaged bitumen. The composition may comprise an emulsifier, a heavy paraffinic distillate solvent extract, a heavy naphthenic distillate solvent extract and water.

Abstract: 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. The viscosity of the residuum is reduced and subsequently mixed with water such that the mixing is high shear mixing. This results in the formation of an emulsion of predispersed residuum in an aqueous matrix. The emulsion is formed such that the aqueous matrix is in a size distribution suitable for use as a combustible fuel.

Abstract: The present invention is an energy efficient method for separating petroleum-based waste including sludge, bottoms or used lubricants. By using solid particles and water, and converting them into useable end products, for example gas and gas/oil fractions. The process produces no wasteful by-products like polluted sewage, heavy asphaltenics and tar by-products. Instead, the process eliminates water through selective adsorption by dewatering additives and the process is followed by drying at high temperatures. The dewatering additives are recycled from other processes and are reusable themselves. After skimming the dewatered matter, the remainder is processed by thermocatalytic cracking. Some of the active materials in the cracking reaction are again waste products of other reactions. The gas and gas oil fractions obtained from this process conform to standard specifications. The process uses equipment that is cost-effective and that are routinely produced.

Abstract: 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 properties of the asphalt and reducing the tendency of pavement made with the asphalt to ravel. The compatibilizer has as its reactive component one or more glycidyl groups; its polymeric backbone can be ethylenic, styrenic, or acrylic or ethylene vinyl acetate (EVA).

Abstract: 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 a reactor in the presence of a hydrogenation catalyst at 310 to 370° C. under 30 to 70 kg/cm2G (first hydrogenation step); and further performing hydrodesulfurization at lower temperatures (second hydrogenation step). When the second hydrogenation step is carried out only for the heavy naphtha obtained by separating the distillates after the first hydrogenation step, the second hydrogenation temperature can be in the range of 250 to 400° C.

Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process selectively removes metals, salts, water and nitrogen from the feedstock, while at the same time maximizes the yield of the liquid product, and minimizes coke and gas production. Furthermore, this process reduces the viscosity of the feedstock in order to permit pipeline transport, if desired, of the upgraded feedstock with little or no addition of diluents.

Abstract: 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 point of 35-45 C. as a partial or complete replacement for coal tar pitch used in driveway sealer and other sealer applications. Driveway sealer (an emulsion of clay, water and binder) made with A 40 has excellent durability and can have a greatly reduced amount of, or be essentially free of, coal tar pitch, greatly reducing the toxicity and odor of the sealer.

Abstract: 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 possible to produce a high-density coke at a high yield while avoiding the foaming of the mesophase pitch. In addition, when the coke is graphitized at a temperature of 2,000° C. or higher, it is possible to obtain an artificial graphite having a high graphitization degree. Further, when the coke is first pulverized and then graphitized at a temperature of 2,000° C. or higher, it is possible to obtain a high-crystallinity graphite powder which can be suitably used as a carbon material for a negative electrode of non-aqueous solvent type secondary battery having a high discharge capacity and a high charge-discharge efficiency.