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7419585 |
Process for upgrading residua
A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is...
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7112311 |
Cooling method of hydrotreating plant and cooling unit therefor
A cooling method of a hydrotreating plant having a desulfurization section ( 1 ) including a furnace ( 12 ) for heating liquid to be processed, reactors ( 14, 15 ) for hydrotreating sulfur to...
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6689925 |
Conversion of drilling waste to fuel
Drilling waste resulting from drilling processes of oil and gas wells using hydrocarbons based drilling fluids contains not only hydrocarbons but also the separated cuttings, and other organic and...
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6549817 |
Method for regulating centrifuges for dehydrating wastewater sludge, using fuzzy logic
A process for regulating a centrifuge used for solid/liquid separation of sewage sludge commences by measuring the input variables of the operating point ot the centrifuge, the variables including ...
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6547960 |
Oil separating apparatus for oil containing substance and method therefor
An oil component separating apparatus for an oil containing substance can solve a problem of inflammability and can separate oil component and solid substance simply at low cost. The oil component...
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5936134 |
Method for obtaining storable products of calorific energy and synthetical oils, by processing waste rubber materials with coal
A method for producing synthetical oils and storable products of calorific energy, by co-processing waste rubber materials, especially waste tires, and coal optionally in the presence of a material...
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5917102 |
Device for depolymerizing used and waste plastics
The invention relates to a device for depolymerizing used and waste plastics, comprising a closed reactor and a circulation system the mildly heating of the reactor contents connected to the...
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5879541 |
Apparatus and method for removing oil from oil-coated particles
Particles of sand coated with oil are loaded into a housing (1). A fluidizing unit (3) is provided towards the bottom of the housing. The fluidizing unit fluidizes the particles and discharges them...
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5846314 |
Process for treating a waste material resulting from an oil recovery from tar sands process
A method of treating a dilute aqueous suspension of solid particulate material comprising waste material from a process for recovering petroleum from oil sand includes diluting the suspension with...
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5605618 |
Process for preparing nitrogen-containing isotropic pitch and nitrogen-containing isotropic pitch
A process for preparing nitrogen-containing isotropic pitch, comprising the steps of mixing a petroleum heavy oil, a nitrating reagent and water to prepare a homogeneous dispersion, thereby...
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5549831 |
Method for processing chemical cleaning solvent waste
A method for processing chemical cleaning solvent waste that combines evaporation, purification, and detoxification. The method is mobile and thus allows the processing to be done at the site of...
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5534137 |
Process for de-ashing coal tar
Described are novel processes for treating high-ash coal tars to produce coal tars which are suitable for distillation to form binder pitch. Preferred processes of the invention involve multi-stage...
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5492618 |
Recovery of hard acids and soft bases from decomposed coal
An improved process for recovering hard acids and soft bases used to decompose coal in which finely divided coal particles are contacted with a hard acid in the presence of a soft base at...
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5337965 |
Method and apparatus for recycling asphalt based roofing material
A method and apparatus for recycling asphalt based roofing material which typically comprises a body of asphalt and fiber, with aggregate on and adhered to the asphalt. The asphalt bodies, with...
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5298157 |
Coal depolymerization utilizing hard acid/soft base
A process for depolymerizing coal at low temperatures by contacting finely divided coal with a hard acid and soft base.
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5296133 |
Low ash coal products from depolymerized coal
A process for preparing a low ash coal wherein coal is depolymerized at low temperature by contacting finely divided coal with a hard acid and soft base, and extracting the depolymerized coal to...
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5294349 |
Coal depolymerization and hydroprocessing
A process for hydroprocessing coal to hydrocarbon oils wherein coal is depolymerized at low temperatures by contacting finely divided coal with a hard acid and soft base. The depolymerized coal is...
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5269910 |
Method of coil liquefaction by hydrogenation
A method for hydro-liquefying coal, the method comprising preheating a slurried mixture of a pulverized coal and a solvent, the preheated mixture being supplied to a plurality of reactors;...
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5110450 |
Coal extract hydroconversion process comprising solvent enhanced carbon monoxide pretreatment
An improved process for the hydroconversion of coal, wherein coal is slurried in an organic solvent and subjected to pretreatment with carbon monoxide, followed by separation of a solvent-soluble...
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5091076 |
Acid treatment of kerogen-agglomerated oil shale
A kerogen-agglomerated oil shale is contacted with an acid-containing solution prior to economically upgrade the oil shale prior to retorting. The kerogen is agglomerated by contacting the oil...
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5041210 |
Oil shale retorting with steam and produced gas
A process for retorting oil shale in a vertical retort. Recycle gas containing steam and produced gas is separated from the retort off-gas and used to heat the oil shale. The steam is present in...
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5041209 |
Process for removing heavy metal compounds from heavy crude oil
A process is provided for removing heavy metal compounds from heavy crude oil by mixing the heavy crude oil with tar sand; preheating the mixture to a temperature of about 650° F.; heating said...
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5013428 |
Recovery of oil from a shale containing the same
Enhanced recovery of oil from an oil-containing particulate shale sludge is achieved by contacting the sludge with a light hydrocarbon solvent fraction, obtained from the processing of oil derived...
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5009770 |
Simultaneous upgrading and dedusting of liquid hydrocarbon feedstocks
A process of concurrently dedusting and upgrading particulate laden raw, whole retort oil is provided which comprises the steps of: retorting solid hydrocarbon-containing material such as oil shale...
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4994175 |
Syncrude dedusting extraction
A method for dedusting synthetic oil is disclosed. A feed of dust-laden synthetic oil is dissolved in a non-polar solvent of at least one alkane containing from 4 to 7 carbon atoms and aggregates...
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4944867 |
Process to secure oil, gas, and by-products from pyrobetuminous shale and other matter impregnated with hydrocarbons
The process for obtaining oil, gas and other products from pyrobituminous shales and the like includes introducing crushed shale into a retort and contacting the crushed shale in the top portion of...
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4919792 |
Clarification of slurry oil
A process for removing catalyst fines from slurry oil is disclosed. A settling reagent, such as coal, alumina, or coke, is added to a fines containing heavy oil bottoms product from a fractionator...
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4888108 |
Separation of fine solids from petroleum oils and the like
Dispersed solids, particularly fine peptized hydrophobic solids, present in some petroleum oils, bitumen solutions or concentrates, heavy oils and the like, may be removed by distributing an...
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4863586 |
Process for recovery of low-temperature carbonization oil
In a first condensation stage (which is on the rising current end of the low-temperature carbonization drum and the equipment for which is integrated) quenching is done with a cooled...
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4842715 |
Novel technique for rendering oily sludges environmentally acceptable
A process is disclosed for separating an organic material from a composition comprising said organic material intermixed with particulate solids, the process comprising advancing a light...
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4812225 |
Method and apparatus for treatment of oil contaminated sludge
Oil containing sludges are treated for the recovery of oil therefrom to render the resultant sludge disposable, by a process of conditioning the sludge to destabilize the emulsified phase thereof,...
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4773988 |
Arsenic removal from shale oil by addition of basic materials
Arsenic is removed from shale oil by the addition of one or more basic materials to the shale oil.
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4737267 |
Oil shale processing apparatus and method
A method and apparatus for the recovery of bitumen oils from oil shale. The method comprises crushing the oil shale to a predetermined particle size and mixing with an organic solvent to form a...
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4705622 |
Process for dedusting shale-oil
Disclosed is a process for removing entrained mineral matter particles from shale-oil by contacting the shale-oil with an aqueous ammonium or phosphonium salt solution having a pH of about 0.5 to 8...
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4702820 |
Pretreatment by alkaline wetting and holding at temperature of natural materials having an argillaceous gangue containing combustible elements
Process for pretreatment at atmospheric pressure or a pressure close to atmospheric pressure by alkaline wetting and holding at temperature of natural materials whose gangue comprises argillaceous...
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4701263 |
Use of amine neutralized sulfonated polystyrenes for particle flocculation
A process for flocculating solid fines from a solution comprising said solid fine and an organic liquid which comprises the steps of: (a) adding with mixing about 5 to about 10,000 ppm of an...
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4696750 |
Flocculation of particles by polymers that precipitate out of solution
A process for flocculating solid fines from a solution comprising said solid fines and an organic liquid which comprises the steps of: (a) adding with mixing about 100 to about 500 ppm of an...
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4695372 |
Conditioning of carbonaceous material prior to physical beneficiation
A carbonaceous material such as coal is conditioned by contact with a supercritical fluid prior to physical beneficiation. The solid feed material is contacted with an organic supercritical fluid...
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4687569 |
Steam stripping process for solids separation in oil shale processing
A process for separating solids from hydrocarbons in a slurry of hydrocarbonaceous solids and solvent is disclosed comprising atomizing the slurry, introducing and mixing the atomized slurry and...
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4675102 |
Process for producing a diesel fuel from medium heavy oil obtained from coal
The invention provides an improvement to a process for producing a diesel fuel from a medium heavy oil obtained from coal. The invention increases the amount of medium oil which can be used to...
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4670104 |
Polar solvent dedusting
A process and system is provided to produce and dedust oil from oil shale and other types of solid hydrocarbon-containing material. In the process, raw oil shale is retorted, preferably with solid...
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4664788 |
Multi-stage coal liquefaction and fractionation method
A multi-stage coal liquefaction method in which coal is slurried with a primary light solvent, such as toluene, hexane and/or cyclohexane, and a process-derived primary heavy solvent. The...
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4597851 |
Process for the utilization of waste waters in the hydrogenation of coal
The invention provides a process for the utilization of waste water in a coal hydrogenation plant. The demand for processed water and the amount of water required in the hydrogenation of coal is...
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4579173 |
Magnetized drive fluids
A process for the recovery of a fluid from a porous formation whereby fingering effects are controlled by applied magnetic field. The process comprises injecting a displacement fluid and...
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4571294 |
Process for extracting hydrocarbons from hydrocarbon bearing ores
Hydrocarbons may be recovered from hydrocarbon-bearing ore by reducing the ore to small particles, forming the reduced ore into pellets, setting the pellets, and then contacting the pellets with an...
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4565622 |
Method of liquefying brown coal
A method for the liquefaction of brown coal which comprises effecting primary hydrogenation at a temperature and pressure sufficient to promote the efficient hydrogenation of a slurry prepared by...
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4559133 |
Process for separating liquids from fine grained solids
A process is disclosed of separating fine solids from oil in which the solids are dispersed which comprising contacting said oil with a combination of a compressed above-critical gas and an...
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4548702 |
Shale oil stabilization with a hydroprocessor
A process is provided to produce, stabilize, dedust and upgrade synthetic oil, such as shale oil. In the process, synthetic fuels, such as oil shale, tar sands and diatomite are retorted with heat...
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4544477 |
Polar solvent extraction and dedusting process
A process is provided to produce and dedust oil from oil shale and other types of solid hydrocarbon-containing material. In the process, raw oil shale or other solid hydrocarbon-containing material...
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4536278 |
Shale oil stabilization with a hydrogen donor quench
A process is provided to produce and stabilize shale oil. In the process, raw oil shale is retorted with heat carrier material to liberate an effluent product stream comprising hydrocarbons and...
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