22results about "Treatment with hydrogen-generating compounds" patented technology

A process and system for reducing contaminants contained within a contaminated feedstock includes mixing the contaminated feedstock with water and at least one of a metal scavenger or reactant to form a feedstock-water-reactant mixture; feeding the mixture under pressure into a hydrothermal purification reactor, where the mixture is exposed to heat, pressure, and turbulent flow conditions to cause rapid reaction of the inorganic contaminants with the metal scavenger or reactant to form inorganic salts that separate into the aqueous phase; maintaining the temperature, pressure, and turbulent flow conditions of the feedstock-water-reactant mixture for a predetermined space-time to prevent the organic portion of the feedstock in the mixture from undergoing conversion reactions and form a hydrothermal reactor effluent; and separating the effluent into an aqueous phase containing salts of the inorganic contaminants and an organic phase containing a lower concentration of inorganic contaminants than the contaminated feedstock.

The application discloses a hydroconversion method of sulfur-containing naphtha. The method comprises the following steps: mixing the sulfur-containing naphtha with hydrogen and performing hydroconversion reaction through a hydroconversion reaction zone; the reaction effluent enters a separation system to obtain hydrogen-rich gas and a hydroconversion product through separation; the hydroconversion reaction zone is sequentially filled with a hydroconversion catalyst I and a hydroconversion catalyst II along the flow direction; and the volume ratio of the hydroconversion catalyst I to the hydroconversion catalyst II is 1:3-3:1. The method can effectively convert isomeric alkanes in the naphtha into normal alkanes, improve the ethylene raw material quality, and solve the problem of sulfur injection in the ethylene production device.

The application discloses a method for converting sulfur-containing naphtha. The method comprises the following steps: mixing the sulfur-containing naphtha with hydrogen, and then passing the mixture through a hydroconversion reaction zone; and separating a reaction product to obtain hydrogen-rich gas and a hydroconversion product, wherein the sulfur content in the hydroconversion product is 50-200 mg / kg, and the hydroconversion reaction zone is filled with at least two hydroconversion catalyst beds, and the active metal content in the catalysts decreases in sequence along the flow direction. The hydroconversion product containing a certain amount of hydrogen sulfide is used as ethylene raw material, so that the problem of sulfur injection in an ethylene production device can be solved.

The invention relates to the technical field of Fischer-Tropsch synthetic oil hydrocracking, and discloses a Fischer-Tropsch synthetic oil hydrogenation catalyst grading method and a Fischer-Tropsch synthetic oil hydrocracking method. The method comprises the steps that a replaceable area and a main reaction area which are connected in series are sequentially arranged in the material flow direction, the replaceable area is provided with two rotation areas which are connected in parallel, during normal operation of the device, at least one rotation area and the main reaction area operate online at the same time, and the single rotation area is sequentially filled with protective agents A1, A2 and A3 in the material flow direction; and the main reaction zone is filled with a cracking catalyst B1. According to the method, various protective agents are adopted for grading, and impurities in Fischer-Tropsch oil are intercepted step by step; meanwhile, the active center of the protective agent is adjusted, the alkali metal adsorption-interception capability is improved, and the toxicity of alkali metal to the cracking main agent is reduced.

A method for reducing coke and coke precursor formation in supercritical water may include generating a supercritical water stream by heating and pressurizing feed water, mixing the supercritical water stream with the heated and pressurized feed oil in a mixing device to produce a combined feed stream, feeding the combined feed stream to a supercritical water reactor to produce an upgraded product, and separating the upgraded product from the supercritical water reactor. In one embodiment, the method comprises the steps of providing a supercritical reactor, producing a cooled, reduced-pressure upgraded product, separating the cooled, reduced-pressure product in a fractionator into a liquid hydrocarbon stream and a hydrocarbon vapor stream, condensing the hydrocarbon vapor stream with a cooling device to produce a light hydrocarbon-water mixture and a separate gaseous product, recycling the light hydrocarbon mixture to mix it with feed water upstream of the supercritical reactor.

The invention relates to a process for the hydroconversion of a plastic feedstock, comprising: (a1) a non-catalytic hydroconversion step of the feedstock in the presence of hydrogen in contact with a source of free radicals, the source comprising sulfur and introduced such that the sulfur content is between 3% and 20% by weight of the feedstock, to produce a first conversion product; (a2) a step of catalytic hydroconversion of the first conversion product in the presence of hydrogen in contact with at least one hydroconversion catalyst comprising, alone or as a mixture, at least one hydrogenation-dehydrogenation element selected from the group consisting of non-noble metal elements of Group VIB and Group VIII of the Periodic Table; and a porous support containing a porous mineral matrix and at least one zeolite, said steps (a1) and (a2) being carried out at a pressure between 1 MPa and 38 MPa absolute, at a temperature greater than or equal to 200 DEG C and less than 400 DEG C, at an hourly space velocity relative to each hydroconversion reactor between 0.05 h-1 and 10 h-1, and at a hydrogen amount between 50 and 5000 Sm3 / m3.

The present invention relates to a process for the hydroconversion of a plastic feedstock, comprising: (a1) a step of non-catalytic hydroconversion of said feedstock in the presence of hydrogen in contact with a source of free radicals comprising sulfur and introduced such that the sulfur content is from 3% to 20% by weight of the feedstock, to produce a first conversion product; (a2) a step of catalytic hydroconversion of the first conversion product in the presence of hydrogen in contact with at least one hydroconversion catalyst comprising at least one hydrodehydrogenating element and a porous non-zeolitic support comprising at least one amorphous silica-alumina, the hydrogenation dehydrogenation element is selected from non-noble metal elements of Group VIB and Group VIII of the periodic table, excluding iron, alone or as a mixture, the steps (a1) and (a2) being carried out under conditions of an absolute pressure of 1 MPa to 38 MPa, a temperature of 200 DEG C to 550 DEG C, an hourly space velocity of 0.05 h <-1 > to 10 h <-1 > per volume of the hydroconversion reactor, and a hydrogen amount of 50 Sm3 / m3 to 5000 Sm3 / m3.

Systems and methods for enhancing hydrocarbon feed fuels by using hydrogen and steam in the presence of hydroprocessing and steam catalysts within a catalytic reactor. Hydrogen can be generated and / or separated from a light gas product stream and recycled to the catalytic reactor to be used as a reactant. The catalytic reactor includes a combination of both a hydroprocessing catalyst and a steam processing catalyst. The hydroprocessing catalyst and the steam processing catalyst are each mounted directly onto a respective underlying support. The steam processing catalyst is a water splitting catalyst which facilitates the breaking of hydrogen-oxygen bonds in water to produce hydrogen. The hydroprocessing catalyst facilitates a reaction between the produced hydrogen and the hydrocarbon feed to produce hydrocarbon products

Systems and methods for producing olefins and / or aromatics are disclosed. The methods include using two stages of aquaprocessing of crude and / or heavy oils prior and subsequent processing in a steam cracking unit to produce olefins and / or aromatics. A first aquaprocessing stage and a second aquaprocessing stage are operated at different severities. The systems include two aquaprocessing units capable of being operated at different severities.

The present invention relates to a method for producing waste plastic pyrolysis oil, which includes the steps of: (A) preparing a waste plastic raw material; (B) supplying the waste plastic raw material to the lower part of a reactive distillation column and then pyrolyzing it to generate a pyrolysis gas; (C) supplying a hydrogen donor stream to the upper part of the reactive distillation column to react with the pyrolysis gas; and (D) discharging the pyrolysis gas that has reacted with the hydrogen donor stream to the upper part and then condensing it to obtain a liquid oil.

A process for reducing coke and coke precursor formation in supercritical water may include producing a supercritical water stream by heating and pressurizing a feed water, mixing the supercritical water stream with heated pressurized feed oil in a mixing device, to create a combined feed stream, feeding the combined feed stream into a supercritical water reactor to produce an upgraded product producing a cooled depressurized upgraded product, separating the cool depressurized product in a fractionator into a liquid hydrocarbon stream and a hydrocarbon vapor stream, condensing the hydrocarbon vapor stream with a cooling device to produce a light hydrocarbon water mixture and a separate gas product, recycling the light hydrocarbon mixture to mix with the feed water upstream of the supercritical reactor.

To provide a hydrothermal purification process.SOLUTION: A process and system for reducing contaminants contained in a contaminated feedstock comprises: mixing the contaminated feedstock with water and at least one of metal scavengers or reactants, to form a feedstock-water-reactant mixture; feeding the mixture under pressure into a hydrothermal purification reactor, wherein the mixture is subject to heat, pressure, and turbulent flow conditions to cause rapid reaction of the inorganic contaminants with the metal scavengers or reactants to form inorganic salts that partition into an aqueous phase; and maintaining the temperature, pressure, and turbulent flow conditions of the feedstock-water-reactant mixture for a predetermined space time to prevent the organic portion of the feedstock in the mixture from undergoing a conversion reaction and to form a hydrothermal reactor effluent.SELECTED DRAWING: Figure 1

A method of preparing pyrolysis oil from waste plastics, the method including: (A) preparing a waste plastic raw material; (B) supplying the waste plastic raw material through a lower portion of a reaction distillation tower and performing pyrolysis to produce pyrolysis gas; (C) supplying a hydrogen donor stream through an upper portion of the reaction distillation tower and reacting the hydrogen donor stream with the pyrolysis gas; and (D) discharging the pyrolysis gas reacted with the hydrogen donor stream through the upper portion and condensing the discharged pyrolysis gas reacted with the hydrogen donor stream to obtain liquid oil.

The present disclosure relates to a method of heavy oil hydroaromatic extraction combined process, which comprises: mixing a heavy oil raw material, a hydrogen transfer catalyst and a hydrogen donor, and feeding the mixture into a slurry bed reactor to carry out a hydrogen transfer reaction to obtain a hydrogen transfer reaction product; subjecting the hydrogen transfer reaction product to a first separation to obtain a gas phase light component and a mixed oil component; subjecting the mixed oil component to a second separation to obtain a light oil product, a heavy oil product and an unconverted oil; returning at least a part of the unconverted oil to the slurry bed reactor for continuous reaction; subjecting the gas phase light component to a third separation, and feeding the obtained spent hydrogen donor into a solvent extraction tower for extraction treatment to obtain a raffinate oil and a mixed solvent oil; subjecting the mixed solvent oil to a fourth separation to obtain a purified spent hydrogen donor; and subjecting the purified spent hydrogen donor to a hydrogenation regeneration treatment to obtain a regenerated hydrogen donor which is returned to the slurry bed reactor. The method of the present disclosure can increase the pressure of the reaction system, reduce the viscosity of the oil product and reduce coking.

An apparatus for converting heavy hydrocarbons to light hydrocarbons includes an inlet capable of supplying a pre-foaming mixture comprising a hydrocarbon to be processed and a processing gas, wherein the processing gas is dissolved in the hydrocarbon to be processed; a foam generator configured to receive the pre-foaming mixture at a first pressure, compress the pre-foaming mixture to a second pressure that is higher than the first pressure by routing it through a nozzle; and generate a foam by allowing the pre-foaming mixture at the second pressure to expand in a chamber at a third pressure that is lower than the first or second pressures; a plasma reactor, wherein the plasma reactor is capable of receiving the foam and comprises at least one pair of spark gap electrodes capable of subjecting the foam to a plasma discharge to yield a processed mixture; and an outlet capable of receiving the processed mixture.

A processing facility is provided that includes a feed separation system configured to separate a feed stream into a light stream and a heavy stream, a hydrogen production system configured to produce hydrogen and carbon dioxide from the light stream, and a carbon dioxide conversion system configured to produce synthetic hydrocarbons from the carbon dioxide, the processing facility including a hydrotreating system configured to process the heavy stream.

A process and system for reducing contaminants contained in a contaminated feedstock comprising mixing the contaminated feedstock with water and at least one of metal scavengers or reactants, to form a feedstock-water-reactant mixture, feeding the mixture under pressure into a hydrothermal purification reactor, wherein the mixture is subject to heat, pressure, and turbulent flow conditions to cause rapid reaction of the inorganic contaminants with the metal scavengers or reactants to form inorganic salts that partition into an aqueous phase and maintaining the temperature, pressure, and turbulent flow conditions of the feedstock-water-reactant mixture for a predetermined space time to prevent the organic portion of the feedstock in the mixture from undergoing a conversion reaction and to form a hydrothermal reactor effluent; and separating the effluent into the aqueous phase containing salts of the inorganic contaminants and an organic phase that contains a lower concentration of inorganic contaminants than the contaminated feedstock.

Disclosed herein is a method of simultaneously removing sulfur and mercury from a hydrocarbon material, including: hydrotreating the hydrocarbon material containing sulfur and mercury in the presence of a catalyst including a metal supported with a carrier to convert sulfur into hydrogen sulfide, and adsorb mercury on a metal active site or a carrier of the catalyst in the form of mercury sulfide.

A method of producing liquefied renewable natural gas (bio-LNG) that includes withdrawing gas comprising fossil natural gas and renewable natural gas from at least one natural gas pipe system. A first portion of the withdrawn gas is liquefied. A second portion of the withdrawn gas is used to generate heat and / or power, at least some of which is used in the liquefaction process. The renewable natural gas is distributed disproportionately between the first and second portions so as to (i) increase a quantity of the bio-LNG produced relative to when the renewable natural gas is distributed proportionately between the first and second portions and / or (ii) reduce a carbon intensity of the bio-LNG produced relative to when the renewable natural gas is distributed proportionately between the first and second portions.

A process for producing olefins from a feedstock containing plastic and / or tires and / or solid recovered fuels, said process comprising the following steps: a step of pyrolysis of a feedstock containing plastic and / or tires and / or solid recovered fuels is carried out in a pyrolysis unit so as to recover at least a first gaseous effluent containing a mixture of H2, CO, CO2 and C1 to C6 hydrocarbons and a first liquid effluent containing C7+ hydrocarbons; said first gaseous effluent is compressed and then cooled, then said first compressed and cooled gaseous effluent is separated so as to obtain a second liquid effluent containing mainly C3 to C6 hydrocarbons and a second residual gaseous effluent concentrated in H2, CO and CO2; said second liquid effluent is introduced into a steam cracking unit in the presence of water vapor.

Embodiments of the present disclosure are directed to a process for producing upgraded product from residue comprising atmospheric residue or vacuum residue upgrading comprising separating the residue through a Solvent Deasphalting (SDA) unit, wherein the SDA unit includes an asphaltene separator that separates the residue into asphaltene pitch and a stream comprising deasphalted oil (DAO) and resin, and a resin separator that subsequently separates the stream comprising DAO and resin into separate DAO and resin streams, treating the resin stream with supercritical water (SCW) to produce an upgraded resin stream, and hydroprocessing a portion of the upgraded resin stream and the DAO stream to produce the upgraded product.