312 results about "Liquid hydrocarbons" patented technology

A system includes a carbon dioxide electrolyzer comprising a cathode configured electrochemically reduce carbon dioxide, a carbon dioxide purification unit, shared infrastructure for the carbon dioxide electrolyzer and the carbon dioxide purification unit, and optionally a liquid hydrocarbon synthesis reactor.

Disclosed are routes for producing liquid hydrocarbon products containing gasoline and / or diesel boiling range hydrocarbons, and optionally renewable products containing non-petroleum derived carbon. In a typical process, a gaseous feed mixture containing a combination of CO 2 and H 2 and / or CH 4 (or other hydrocarbon sources of H 2 ) is converted by a reforming and / or reverse water gas shift (RWGS) reaction optionally used in combination with Fischer-Tropsch (FT) synthesis and / or cracking. Preferred gaseous feed mixtures are biogas or mixtures of CO 2 and H 2 that are not easily upgraded in conventional processes. The catalysts described herein have high activity to catalyze the reforming (including dry reforming) of CH 4 and other light hydrocarbons (e.g., those produced by FT synthesis and recycled to the process as light fractions) and simultaneously catalyze the RWGS reaction. These attributes provide flexibility with respect to compositions that can be efficiently converted. Optionally, the use of an electrically heated reforming reactor in the first reforming stage or initial reforming stage or RWGS stage can improve the economics of small-scale operation.

A spectrophotometric system and method for quantifying water content in a liquid hydrocarbon stream is disclosed. The system can include at least one light source that produces a light having a desired wavelength and a flow chamber that allows passage of a sample of the liquid hydrocarbon stream. The light is configured to pass through the liquid hydrocarbon stream within the flow chamber. The system can also include at least one photosensitive detector array that measures an intensity of the light at one or more desired wavelengths of the light after it passes through the liquid hydrocarbon stream in the flow chamber. The intensity measurement of the at least one photosensitive detector array is used to quantify the undissolved water content of the liquid hydrocarbon stream.

There is described a method for pyrolyzing a plastic material, the method comprising the steps of:-heating the plastic material to a pyrolysis temperature to provide a fluid stream comprising liquid and gaseous hydrocarbons of the at least partially pyrolyzed material; injecting the fluid stream of liquid and gaseous hydrocarbons into a gas-liquid separation vessel, wherein the gaseous and liquid materials are separated preferably under the action of gravity; -releasing the gaseous material from the separation vessel for processing the gaseous material into a hydrocarbon product; -accumulating the liquid in a bottom portion of the separation vessel and subjecting the liquid to further pyrolysis; wherein a fluid stream of the liquid and gaseous hydrocarbons is injected to create a swirling or swirling fluid flow in the separation vessel.

The present invention is a method for removing sulfur from liquid hydrocarbon feedstocks and for performing hydrogenation reactions in sulfur-contaminated feedstocks, including the hydrogenation of naphthalene in the presence of sulfur compounds, using catalysts or adsorbents comprising metal oxide nanowires decorated with reduced catalytically-active metal particles. In a preferred embodiment, the adsorbent comprises zinc oxide nanowires decorated with catalytically-active metals selected from nickel, cobalt, molybdenum, platinum, palladium, copper, oxides thereof, alloys thereof, and combinations thereof. In some embodiments, the sulfur is removed through a desulfurization process without an external hydrogen supply. The process is effective for the removal of sulfur from diesel fuels and liquid fuel streams, and for deep desulfurization of natural gas streams. The process is also effective for the selective hydrogenation of naphthalene to tetralin in the presence of sulfur compounds.

Adsorbents which are more hydrothermally stable, less reactive, and have longer life are described. The adsorbent comprises 60 wt % to 95 wt % zeolite, wherein the zeolite is an LTA zeolite in hydrogen, ammonium, potassium, calcium or sodium form, wherein the zeolite has a ratio of silica / alumina in a range of 1 and 1.5; 5 wt % to 30 wt % binder; 0.1 to 5 wt % phosphorous in the form of phosphoric acid, or a phosphate salt, or a pyrophosphate salt, or combinations thereof; and 0.5 to 10 wt % silica. Processes of preparing the adsorbent, and methods of drying or purifying a liquid hydrocarbon, a gas hydrocarbon, a renewable feedstocks, carbon dioxide, or combinations thereof, using the adsorbent are also described.

The present invention relates to the field of dewaxing of hydrocarbon feeds. More in particular, it relates to the use of alkaline-treated mesoporous zeolites and catalysts encompassing the same for the dewaxing of hydrocarbon feeds. It was found that the zeolites and catalysts of the present invention can significantly reduce cracking of the hydrocarbon feed, and accordingly significantly reduce liquid hydrocarbon feed loss during processes such as dewaxing.

The invention relates to a method for obtaining hydrocarbon fluids from a fossil heavy hydrocarbon feedstock and a tyre oil, the method comprising: a) a step of providing a tyre oil or at least one fraction of a tyre oil; b) a step of thermal cracking in a visbreaking unit or a coking unit, during which the fossil heavy hydrocarbon feedstock, or a fraction of the heavy fraction of the fossil heavy hydrocarbon feedstock, is subjected to thermal cracking under visbreaking or coking conditions in the presence of tyre oil or the at least one tyre-oil fraction provided in step a), thereby producing an at least partially cracked effluent and a liquid or solid residue; c) a fractionation step in which the effluent from step b) is fractionated into at least one liquid hydrocarbon fraction.

The invention discloses a device and a method for deeply removing silicon from liquid hydrocarbon. The device comprises a supergravity mass transfer system and an ultra-deep adsorption system, the supergravity mass transfer system comprises a first supergravity reactor and a second supergravity reactor which are oppositely arranged up and down, and central rotating shafts of the reactors are on the same straight line; each of the first supergravity reactor and the second supergravity reactor comprises a reaction cavity and a rotor arranged in the reaction cavity, and the rotors are externally connected with a driving mechanism through respective central rotating shafts; a rotor of the first supergravity reactor is filled with a mass transfer filler, and a rotor of the second supergravity reactor is filled with a separation filler; the first supergravity reactor reaction cavity and the second supergravity reactor reaction cavity are communicated through a liquid rising channel and a liquid falling channel; a raw material distributor is axially arranged in the inner side area of the mass transfer filler, and a desiliconizing agent distributor is axially arranged in the outer side area of the mass transfer filler; the top of the first supergravity reactor is provided with a light phase outlet connected with the ultra-deep adsorption system, and the bottom of the second supergravity reactor is provided with a heavy phase outlet.

The present invention relates to the technical field of polyurethane preparation, and discloses a C9 hydrocarbon resin-based polyisocyanate and a preparation method thereof. Through the grafting reaction of C9-HCR with polyisocyanate, C9 hydrocarbon resin-based polyisocyanate C9-HCI resin is prepared; in the process method for preparing phenol-modified liquid hydrocarbon resin C9-HCR in the present invention, through the effective control of the hydroxyl content, viscosity and moisture in the C9-HCR product, it provides beneficial technical support for realizing the isocyanation of C9-HCR hydrocarbon resin; the grafting reaction of C9-HCR with polyisocyanate is carried out under the catalysis of dibutyltin dilaurate, and the polyisocyanate monomer reacting with C9-HCR resin can be selected from one or more of TDI and its isomers, or MDI and its isomers; the proportion of the dibutyltin dilaurate catalyst is 0.05% to 0.5% of the weight of the reactants, the reaction temperature is controlled at 60 to 80 degrees, and the reaction is carried out for 2 to 6 hours, and finally C9-HCI resin is obtained, realizing the isocyanation of C9-HCR hydrocarbon resin.

A process is described for synthesising hydrocarbons comprising the steps of: (a) feeding a gas mixture comprising hydrogen and carbon dioxide to a reverse water-gas shift unit to form a crude synthesis gas comprising hydrogen, carbon monoxide carbon dioxide and steam, (b) cooling the crude synthesis gas to condense water and removing water, and optionally carbon dioxide, from the crude synthesis gas to produce a feed stream comprising hydrogen and carbon monoxide, (c) passing the feed stream though a hydrocarbon synthesis unit comprising a reactor containing a Fischer-Tropsch catalyst to form a product stream comprising a mixture of liquid hydrocarbons, a co-produced water stream, and a tail gas stream containing hydrogen, carbon monoxide and gaseous hydrocarbons, and (d) upgrading the product stream in an upgrading unit to produce an upgraded product stream, wherein a naphtha stream is separated from the product stream or the upgraded product stream, at least a portion of the tail gas stream is fed with steam to a first derichment vessel containing a derichment catalyst to form a first gas mixture containing methane, at least a portion of the naphtha stream is fed with hydrogen and steam to a second derichment vessel containing a derichment catalyst to form a second gas mixture containing methane, and the first and second gas mixtures containing methane are fed to the reverse water gas shift unit. A system for performing the process is also provided.

The invention relates to the technical field of low-temperature liquefied hydrocarbon gasification, in particular to a system and method for normal-temperature storage and low-temperature C1-C4 liquefied hydrocarbon gasification. The system comprises a low-temperature liquefied hydrocarbon storage raw material tank, a low-temperature liquid booster pump, a liquefied hydrocarbon gasifier, a circulating air heater and a circulating fan which are sequentially connected through pipelines and necessary pipe fittings, and the circulating fan is connected with the liquefied hydrocarbon gasifier to form a low-temperature liquefied hydrocarbon gasification flow path and a circulating gas flow path. The low-temperature liquefied hydrocarbon gasification flow path is a flow path for heating and gasifying liquid hydrocarbon by the liquefied hydrocarbon gasifier to form gas hydrocarbon to an external production device; and the circulating gas flow path is a flow path through which circulating gas circulates between the liquefied hydrocarbon gasifier and the circulating air heater under the pressurization of the circulating fan. The system is safe, reliable, feasible in industrialization and stable in operation, the frosting problem of the air temperature type vaporizer can be effectively solved, the process is simple, and a heating medium is safe, environmentally friendly and easy to obtain.

The present invention relates to an apparatus for thermally decomposing a fluid hydrocarbon into one or more hydrocarbon products, comprising: at least one recycle pump for transporting the fluid hydrocarbon; and at least one recycle heat exchanger providing at least one tube through which the fluid hydrocarbon passes; wherein at least one recycle pump and / or recycle heat exchanger is configured to establish a flow velocity of at least 1 m / s of the fluid hydrocarbon in at least one tube.

The application relates to a method for producing jet fuel from oil and fat raw materials, wherein the oil and fat raw materials are reacted with a hydrotreating catalyst in a hydrotreating reaction zone, the obtained liquid hydrocarbons are introduced into a first hydroisomerization reaction zone, an optional second hydroisomerization reaction zone is arranged, the obtained diesel oil fraction is recycled into the first hydroisomerization reaction zone or introduced into the second hydroisomerization reaction zone for reaction, and the reaction effluent is separated to obtain jet fuel. The application can produce high-quality biological jet fuel at a high yield.

The present disclosure provides a method and apparatus for high purity hydrogen combustion liquid hydrocarbon cracking. In one embodiment, the method may include: preheating a liquid hydrocarbon feedstock in a first heat exchanger external to the furnace; adding steam to the preheated liquid hydrocarbon feedstock to form a fully or substantially fully vaporized stream; heating the fully or substantially fully vaporized stream in a second heat exchanger external to the furnace; and cracking the heated fully or substantially fully vaporized stream after preheating the heated fully or substantially fully vaporized stream in the furnace to form a cracked gas stream comprising ethylene and hydrogen.

The invention relates to a method for producing jet fuel from a grease raw material, which comprises the following steps of: contacting the grease raw material with a hydrotreating catalyst in a hydrotreating reaction zone to react, feeding obtained liquid hydrocarbon into a first hydroisomerization reaction zone, and setting an optional second hydroisomerization reaction zone, the obtained diesel fraction is circulated back to the first hydroisomerization reaction zone or enters the second hydroisomerization reaction zone for reaction, and the jet fuel is obtained after reaction effluent is separated. The high-quality bio-jet fuel can be prepared with high yield.

The present invention relates to the field of biofuel production, and discloses a method for producing biodiesel fractions from oil-based raw materials. The method includes: under the presence of hydrogen, subjecting the oil-based raw materials to a first hydrotreating and heat exchange treatment to obtain a hydrotreating effluent I; subjecting the hydrotreating effluent I to a second hydrotreating to obtain a hydrotreating effluent II; performing gas-liquid separation on the hydrotreating effluent II to obtain liquid hydrocarbons, water, and a gas stream; subjecting at least part of the liquid hydrocarbons to hydroisomerization reaction and then performing separation to obtain diesel fractions. The method provided by the present invention completes the reactions with fast reaction rates and large heat releases during the oil hydrogenation process in the reaction module, and at the same time, a plurality of heat exchange templates are added between the reaction modules. Without adopting a large amount of cold hydrogen and product circulation, the total temperature rise of the reaction system can still be controlled, resulting in low production energy consumption and qualified quality of the prepared biodiesel fractions.

The application discloses a method for determining hydrocarbon saturation of a logging reservoir and related equipment, and relates to the field of oil and gas exploration. The method comprises the following steps: obtaining gas logging data and logging porosity data; obtaining natural gas volume and gas-oil ratio data under surface conditions based on the gas logging data, wherein the gas-oil volume ratio data comprises gas volume coefficient, crude oil volume coefficient, gas-oil ratio, and gas-oil ratio when the formation pressure is the bubble point pressure; the reservoir hydrocarbon saturation comprises at least one of gas saturation, oil saturation and total hydrocarbon saturation; calculating oil and gas property parameters under surface conditions; calculating oil and gas property parameters under reservoir conditions based on formation temperature and pressure conditions; judging the saturation state of the reservoir based on the bubble point line temperature and pressure conditions, and judging the oil and gas reservoir saturation state according to the formation pressure and the reservoir bubble point pressure, wherein the oil and gas saturation state comprises liquid hydrocarbon single-phase state, gaseous hydrocarbon single-phase state and oil-gas mixed-phase state; and obtaining the reservoir hydrocarbon saturation based on the reservoir saturation state, the natural gas volume under the surface conditions, the logging porosity data and the gas-oil volume ratio data.

A process for converting hydrocarbons utilizes a reactor including a central axis, a feed assembly, and a reactor vessel defining a reaction chamber. A fuel gas feed and an oxidant gas feed are introduced into the feed assembly in a swirling fluid flow pattern, which combust to form a swirling combustion gas. A raw C4 hydrocarbon stream received from an upstream hydrocarbon processing system and a hydrocarbon reactant feed of liquid hydrocarbons are introduced into the central chamber. The liquid feed is introduced as a liquid spray in a flow pattern that is not perpendicular to the central axis. A hydrocarbon feed is mixed with the swirling combustion gas to form a swirling heated mixture that passes from the central chamber through convergent-divergent conduits and into the reaction chamber to react to form a converted hydrocarbon product.

There is provided a method of steam cracking one or more hydrocarbons, the method comprising preheating a liquid hydrocarbon feed stream (1) containing the one or more hydrocarbons to provide a preheated hydrocarbon feed stream (2), superheating a dilution steam stream (3) to provide a superheated dilution steam stream (4), combining the preheated hydrocarbon feed stream (2) and the superheated dilution steam stream (4) to provide a gaseous steam cracking feed stream (6), and steam cracking the gaseus steam cracking feed stream (6) using a steam cracking arrangement (F) operated with electric energy, wherein heat used in said preheating the hydrocarbon stream (1) until its combination with the superheated dilution steam (4) is provided by transferring heat from heating steam to the hydrocarbon feed stream (1). A corresponding system (100, 200, 300, 400) for steam cracking is also provided.

The invention relates to the field of oxidative desulfurization of oil and sulfur-containing liquid hydrocarbon fuels (including diesel fuel) and can be used to reduce harmful emissions and exhausts (in the form of sulphur oxide and carbon monoxide - SO2 and CO) of oil refineries, as well as various industrial enterprises (including energy), facilities and engines using hydrocarbon fuels. Method of oxidative desulfurization of oil and liquid hydrocarbon fuel and reducing harmful emissions of sulfur oxides and carbon provides a process of oxidation in tanks or pipelines by ozone (O3) or ozone-containing gases, in which sulfur oxides (SO2 and SO), without releasing them into the atmosphere, mix in a closed vessel or pipeline with carbon monoxide (CO) and by means of chemical reactions of sulfur monoxide decomposition (2SO↑ → SO2↑+S↓) and sulfur recovery (SO2↑ + 2CO↑ → S↓ + 2CO2↑) elemental sulfur (S) is extracted from oil or liquid hydrocarbon fuel and carbon monoxide (CO) is converted into its dioxide (CO2). The oxidation, also decomposition and recovery reactions are carried out one-step or sequentially, in the presence of oxidation-recovery group catalysts corresponding to these reactions, such as tert-Butyl hydroperoxide (C₄H₁₀O₂). Ozonized atmospheric air is used as ozone-containing gas.

The invention discloses an adsorbent for removing methanol from liquid hydrocarbon as well as a preparation method and application of the adsorbent, belongs to the technical field of liquid hydrocarbon dealcoholization, and can effectively remove methanol from liquid hydrocarbon through combination of active adsorption species and a porous carrier in a specific proportion. The mass loading amount of the active adsorption species is in the range of 5-50%, enough adsorption capacity is ensured, meanwhile, the stability and mechanical strength of the adsorbent are kept, the adsorbent can effectively adsorb methanol in liquid hydrocarbon, the technical problem that the methanol content in the liquid hydrocarbon is high, and consequently products such as ethane, liquefied petroleum gas and stable light hydrocarbon contain methanol is solved, and the method is suitable for industrial production. The adsorbent with excellent methanol removal performance can be efficiently prepared through simple preparation steps including dissolving, mixing, drying by distillation under reduced pressure and drying. The method is low in cost and easy for industrial production, and the liquid hydrocarbon raw material containing trace methanol is treated by the solid adsorbent bed layer, so that methanol can be efficiently removed, and a liquid hydrocarbon product meeting requirements is obtained.

The present invention relates to a process for converting a feed comprising at least a biomass fraction into hydrocarbons, said process comprising a step a) of pretreatment of the feed, a step b) of electrolysis of water into oxygen and hydrogen allowing the obtaining of a hydrogen stream, and an oxygen stream, in which the water is obtained, at least in part, from a step e) of Fischer-Tropsch synthesis, a step c) of gasification of the feed pretreated in step a), in the presence of all or part of the oxygen stream from step b) of water electrolysis so as to obtain a gaseous effluent comprising a synthesis gas,an optional step d) of conditioning the gaseous effluent comprising a synthesis gas from step c) and a step e) of Fischer-Tropsch synthesis of the gaseous effluent from step c) or possibly from step d) in the presence of all or part of the hydrogen from step b) of water electrolysis so as to produce a stream comprising synthetic liquid hydrocarbons and at least one gaseous effluent. Figure to be published: Figure 1,

A liquid hydrocarbon production method comprising: providing a first reactant stream 2 comprising water and carbon dioxide; passing the first reactant stream to a first electrolysis unit 1 to form syn

This invention relates to the field of chemical / energy fuel technology, specifically disclosing a method for upgrading and recycling waste plastics to prepare renewable liquid hydrocarbon fuels. This method integrates steps such as pretreatment, solvent dissolution, impurity separation, catalytic degradation, and product separation and purification. On one hand, it precisely controls the molecular chain breaking process of various types of waste plastics through catalytic degradation, ensuring that the carbon number of the degradation products is mainly concentrated in the C5~C5 range. 18+ Within this range, high-quality components, mainly liquid hydrocarbon fractions, are obtained that can be directly used as recycled gasoline and sustainable aviation fuel. On the other hand, through the efficient separation and recycling of solvents and ionic liquid catalysts, the closed-loop use of solvents / ionic liquid catalysts and the high selective enrichment of products are realized, forming a closed-loop path of "waste plastics - liquid fuels - carbon cycle", realizing the high-value and low-carbon transformation of waste plastics into renewable liquid hydrocarbon fuels.

Herein is described a method for the production of liquid hydrocarbon composition, comprising i) providing a bio-based carbonaceous feedstock (a); ii) removing at least part of the foreign coarse material (b) from the bio-based carbonaceous feedstock (a); iii drying and / or grinding to obtain a pretreated bio-based carbonaceous material (c); iv) subjecting the pretreated bio-based carbonaceous material (c) to catalytic hydroliquefaction to obtain a product composition; v) separating the liquid hydrocarbons and the off-gas from the product composition to obtain a liquid hydrocarbon fraction (f) and a first gaseous fraction (g-1); vi) subjecting the liquid hydrocarbon fraction (f) to catalytic upgrading; and vii) obtaining a sponge oil fraction (s-1) and contacting the sponge oil fraction (i) with the first gaseous fraction (g-1) to obtain an oxygen enriched sponge oil fraction (s-2) and a second gaseous fraction (g-2), and feeding the oxygen enriched sponge oil fraction (s-2) to catalytic upgrading.

The invention provides a hydrocarbon waste liquid vaporization process and device, hydrocarbon gases such as butane and butene separated from methyl chloride synthesized by organic silicon monomers are pressurized and cooled into liquid, sent to a storage tank for storage, vaporized by a waste liquid vaporization device, and sent to an incineration device for stable combustion by controlling the liquid level of the vaporization device and the pressure of a gas phase outlet. The hydrocarbon waste liquid vaporization device can vaporize hydrocarbon waste liquid in an active mode, steam serves as a heating medium, the vaporization process is stable and safe, it is ensured that the hydrocarbon waste liquid is completely vaporized, meanwhile, condensed impurities in liquid hydrocarbons are removed in a precipitation mode, and the hydrocarbon gas quality is improved while efficient vaporization is conducted; hydrocarbon waste liquid flow input, the liquid level of the vaporizer and hydrocarbon waste liquid gas phase pressure are controlled through the self-control valve, stable operation of the vaporizing system is ensured, the combustion flame shape of the incineration device is stable, and combustion is more sufficient; the vaporizer adopts a coaxial sleeve type structure, is pressure-resistant and shock-resistant, is not easy to deform and block, performs forced convection heat exchange, and saves the heat exchange area.

A process for converting hydrocarbons utilizes a reactor system including a central shaft, a feed assembly, and a reactor vessel defining a reaction chamber. A fuel gas feed and an oxidant gas feed are introduced into the feed assembly in a swirling fluid flow pattern, which combust to form a swirling combustion gas. A hydrocarbon reactant feed of liquefied natural gas (NGL), natural gas condensate or associated petroleum gas, and liquid hydrocarbons is introduced into the central chamber. The liquid feed is introduced as a liquid spray in a flow pattern that is not perpendicular to the central axis. A hydrocarbon feed is mixed with the swirling combustion gas to form a swirling heated mixture that passes from the central chamber through convergent-divergent conduits and into the reaction chamber to react to form a converted hydrocarbon product.

A pre-processing reactor for a recycled polymeric feedstock processing device comprises a screw conveyor (31) in a closed tube (32) with a. halogen discharge pipeline (35), The screw conveyor (31) may have a variable pitch, A heating system comprises an electric heating member (34) connected to a temperature sensor (33) to provide a defined chemical-physical state of the prepared polymeric feedstock in an outlet opening of a pre-processing reactor (3). A heat exchanger (36) connected to an outer chamber (42) of a main reactor (4) via an exhaust gas path (11) may also be used. In the device, the heated multi -jacketed main reactor (4) is downstream of the pre-processing reactor (3) and comprises an inner chamber (41) and an outer chamber (42). The inner chamber (41) is provided with a solid residue conveyor (5) and a steam -and-gas mixture discharge (18) connected to a separator (8). A condensation block (19) and a separation tank (9) for separating the liquid and gaseous fractions of the finished product are downstream of the separator (8). The device is capable of producing a liquid hydrocarbon mixture free of halogens and their acids.

This application relates to a method for preparing liquid hydrocarbons from waste plastics, comprising the following steps: S1: mixing waste plastics and a pyrolysis catalyst to obtain a first mixture; S2: subjecting the first mixture to a multi-stage pyrolysis reaction to obtain a first mixed oil-gas component and a first solid product; S3: separating the first mixed oil-gas component and the first solid product; S4: catalytically recombining the first mixed oil-gas component to obtain a second mixed oil-gas component; S5: fractionating and refining the second mixed oil-gas component to obtain gaseous hydrocarbons and liquid hydrocarbons. This application also relates to a system for preparing liquid hydrocarbons from waste plastics. This application solves the technological challenges of chemical recycling of waste plastics, enabling its catalytic conversion reaction to generate more industrial raw materials, addressing the environmental pollution caused by the incineration of waste plastics, and enhancing the utilization value of waste plastic cracking catalysts, bringing significant economic and social benefits to the petrochemical industry.