367 results about "Liquid hydrocarbons" patented technology

The invention provides a dual-fuel combustion nozzle which comprises a nozzle shell connected with a cooling plate. A hydrogen fuel gas collecting cavity and a liquid hydrocarbon fuel pipe which are coaxial are arranged in the nozzle shell; a first air channel is formed between the inner wall of the hydrogen fuel gas collecting cavity and the liquid hydrocarbon fuel pipe, and a swirler is arranged in the first air channel; a second air channel is formed between the outer wall of the hydrogen fuel gas collecting cavity and the inner shell of the nozzle shell; a liquid hydrocarbon spray hole is formed in the outlet end of the liquid hydrocarbon fuel pipe and is positioned in a space formed by the expansion section of the venturi structure; a hydrogen spray hole is formed in the side wall, close to the top end, of the hydrogen fuel collecting cavity. The invention further provides an engine combustion chamber comprising the combustion nozzle. According to the invention, efficient mixing of hydrocarbon fuel and hydrogen fuel can be realized, the phenomenon of backfire spontaneous combustion is avoided, the flameout boundary is widened, and stable switching of multiple working modes is realized.

The invention discloses an iron-cobalt-zirconium catalyst suitable for carbon dioxide hydrogenation, a preparation method of the iron-cobalt-zirconium catalyst and application of the iron-cobalt-zirconium catalyst to preparation of liquid hydrocarbon and co-production of low-carbon olefin through carbon dioxide hydrogenation. The catalyst is prepared by taking nitrate of iron, nitrate of cobalt and nitrate of zirconium as raw materials through operations of coprecipitation, hydrothermal synthesis, drying, roasting and the like. By adopting the technology, the invention provides the carbon dioxide hydrogenation catalyst and limits the preparation method of the carbon dioxide hydrogenation catalyst. The preparation method is simple, and the obtained catalyst has high activity, high liquid hydrocarbon selectivity and low-carbon olefin selectivity at the temperature of 280 DEG C, is good in stability, relatively economical and practical, and has a good industrial application prospect.

The present disclosure relates to systems and / or methods for enabling a reflux process in one or more distillation columns. For example, various embodiments described herein can relate to a method that can utilize the column's feed stream to provide an internal reflux mechanism in the top portion of the distillation column. For instance, the method can include capturing overhead vapor from a distillation column. Additionally, the method can include comingling the overhead vapor with a feed stream. Further, the method can include partially condensing the feed stream to form a liquid hydrocarbon feed stream that is supplied to a top portion of the distillation column. In one or more embodiments, the comingling can incorporate reflux functionality into the liquid hydrocarbon feed stream to promote a rectification process in the top portion of the distillation column.

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.

The invention relates to the field of equipment detection, in particular to an oil leakage detection system and method for oil charging equipment. The system comprises a hydrocarbon sensing cable, the center of the hydrocarbon sensing cable is provided with a sensing line, the outer side of the sensing line is wrapped with an adsorption part, the adsorption part is used for adsorbing leaked liquid hydrocarbon, and the sensing line is used for detecting resistance change; the hydrocarbon sensor is connected with the hydrocarbon sensing cable and is used for converting resistance change caused by adsorbed hydrocarbon into a digital signal and sending the digital signal to the sensor module; the sensor module communicates with the background system monitoring host and is used for detecting the oil leakage condition of the oil charging equipment; the background system monitoring host is used for receiving and processing signals sent by the sensor module. And missed inspection caused by insufficient manual inspection is reduced. According to the invention, the plurality of sensor modules are used for covering key parts of the oil filling equipment, especially areas which are difficult to observe, so that dead-angle-free monitoring is ensured.

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.

The invention provides a method for enriching diluents with butane so as not to violate pre-defined limits for liquid hydrocarbon fuels with respect to density, volatility and low density hydrocarbon content.

The invention discloses liquid hydrocarbon fuel combustion equipment and a supercritical carbon dioxide circulation system, the liquid hydrocarbon fuel combustion equipment comprises a nozzle, a combustion chamber and a rotational flow assembly, the rotational flow assembly comprises a first-stage pipe, a second-stage pipe, a first-stage cyclone, a second-stage cyclone and a third-stage cyclone, and the first-stage pipe and the second-stage pipe are both scaling venturi pipes. The supercritical carbon dioxide circulation system comprises fuel supply equipment, pure oxygen supply equipment and a circulation assembly, mixed gas of carbon dioxide and water vapor generated by combustion of the liquid hydrocarbon fuel combustion equipment is circulated through the circulation assembly to obtain high-purity carbon dioxide, and the high-purity carbon dioxide is divided into three paths to flow into a first-stage swirler, a second-stage swirler and a third-stage swirler; the carbon dioxide flowing into the second-stage cyclone is uniformly mixed with oxygen from pure oxygen supply equipment before flowing into the second-stage cyclone. The combustion ignition delay period and the mixing time can be prolonged, a standing vortex high-temperature rapid reaction area is formed, the problem that the combustion speed is low in the concentrated carbon dioxide atmosphere is solved, and the supercritical carbon dioxide circulation efficiency is improved.

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.

The invention discloses a preparation method and application of a catalyst for preparing hydrocarbon liquid fuel through grease hydrodeoxygenation, oxyphilic metal elements of tungsten, molybdenum, zirconium and zinc are introduced, oxyphilic metal salt and nickel salt are fully mixed with a carrier according to different proportions and then subjected to ultrasonic treatment, a solvent is subjected to vacuum rotary evaporation under the room temperature condition, and the catalyst is obtained. The supported nano nickel-based alloy catalyst is prepared by roasting at the temperature of 250-400 DEG C and reducing at the temperature of 650-690 DEG C, activation and breakage of C-O bonds of ester compounds under mild conditions are greatly enhanced, and hydrodeoxygenation conversion of the ester compounds under mild conditions is realized by utilizing a nickel metal center with high hydrogen dissociation activity. In addition, the hydrogenolysis side reaction of the nickel metal center to the liquid hydrocarbon product is inhibited, the excellent catalytic performance is shown, the reaction activity is high, the yield of the hydrocarbon target product is high, and the catalyst stability is good.

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.

The invention provides a composite nozzle for an oxygen hydrocarbon fuel torch igniter. The composite nozzle is suitable for oxygen-liquid hydrocarbon fuel and oxygen-gaseous hydrocarbon fuel. The composite nozzle mainly comprises a hydrocarbon fuel top cover, a hollow hydrocarbon fuel nozzle, an oxygen injection body, a hydrocarbon fuel annular cavity, an oxygen annular cavity, a cooling medium annular cavity, an annular oxygen channel, a cooling medium injection hole and the like which are coaxially arranged. By reasonably distributing oxygen, hydrocarbon fuel and cooling medium parameters, the wall face of the combustion chamber can be effectively cooled on the premise that high combustion efficiency is guaranteed, and long-time normal work and service life of the igniter are guaranteed.

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.

A process for preparing an ethylene polymer in a suspension polymerization including the steps of separating the formed suspension of ethylene polymer particles in a solid-liquid separator into wet ethylene polymer particles and mother liquor, drying the wet ethylene polymer particles by a gas stream and forming a gas stream carrying a hydrocarbon load, and thereafter separating the hydrocarbon load from the gas stream and thereby forming a liquid hydrocarbon recover stream, transferring a part of the mother liquor into a work-up section including an evaporator for producing a wax-depleted portion of the mother liquor and a diluent distillation unit for producing isolated diluent from the wax-depleted portion of the mother liquor, wherein a first part of the hydrocarbon recover stream is transferred to the diluent distillation unit without passing the evaporator for producing the wax-depleted portion of the mother liquor.

To provide a method and an apparatus for extremely efficiently generating a liquid hydrocarbon via a photocatalyst with respect to water in which oxygen and carbon dioxide are dissolved.SOLUTION: A liquid hydrocarbon synthesis method and synthesis apparatus for reducing carbon dioxide and water W into carbon monoxide and hydrogen via a photocatalyst in a reaction tank 1 that contains water in which carbon dioxide and oxygen are dissolved and that is in a mixed state with a liquid hydrocarbon HC, and further synthesizing the liquid hydrocarbon HC through a chemical reaction between the carbon monoxide and the hydrogen via the photocatalyst, achieve the above-mentioned object by bringing air A containing carbon dioxide at an adjustable concentration into contact with an upper interface of a layer of the liquid hydrocarbon HC formed in a region above the water W.SELECTED DRAWING: Figure 2

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.