62 results about "Natural-gas processing" patented technology

The invention relates to the technical field of material science and chemical corrosion prevention, in particular to a production method of a high-pressure air cooling corrosion inhibitor. The bio-based corrosion inhibition carrier, the magnetic targeting intelligent nanoreactor and the dual-response polymer are cooperatively constructed, and a rare earth organic framework self-repairing system and a phase change induced self-assembly technology are combined, so that long-acting protection of the corrosion inhibitor in a high-temperature and high-humidity environment is realized. The corrosion inhibitor is endowed with excellent environmental adaptability through the combination of a bio-based material and a nano packaging technology. Due to the introduction of a rare earth, siloxane complex and zeolite oriented assembly system, the protective film has a self-repairing function. The near-critical self-assembly process of the functionalized ionic liquid significantly improves the pH response release efficiency of the corrosion inhibition component. The corrosion inhibitor breaks through the performance limitation of a traditional corrosion inhibitor under complex working conditions, and is suitable for the key industrial fields of petrochemical engineering, ocean engineering, natural gas treatment and the like.

The application belongs to the technical field of fine filter of natural gas treatment methanol recovery device, and particularly discloses a filter core extractor and method for methanol recovery device. The filter core extractor comprises a lever, a fixing hole is formed in the side wall of one end of the lever, a plurality of transposition holes are formed in the side wall of the middle part of the lever, a fixing structure is arranged at the fixing hole and used for fixing with the cylinder wall of the methanol recovery device, and a taking-out structure is arranged at the transposition hole. The taking-out structure comprises a buckle taking-out assembly, a cavity is formed in the middle part of the buckle taking-out assembly, a third through hole is formed below the cavity, a buckle taking-out ring is fixedly arranged in the third through hole, and the buckle taking-out ring is a circular sheet with a groove formed along the radial direction. The filter core screw cap is clamped by the cavity, the filter core screw rod is clamped by the groove in the buckle taking-out ring, so that the filter core is fixed, the fixing structure plays the role of fulcrum, the filter core is lifted and replaced by the lever, the filter core is not bumped during use, and the integrity of the filter core is ensured.

The invention belongs to the technical field of natural gas treatment, and discloses a process and a system for recovering ethane and other light hydrocarbon components from oilfield associated gas. A washing tower is arranged before dehydration, heavy hydrocarbon components in the oilfield associated gas are removed, the influence of the heavy hydrocarbon components on a molecular sieve dehydration device is reduced, the service life of a molecular sieve is prolonged, and a liquid phase separated by a low-temperature separator is cooled by a cold box to be cooled and throttled to enter the top of a demethanizing tower; and the low-temperature freezing blockage influence of the carbon dioxide component on the demethanizer can be well reduced.

A system for processing liquified natural gas can include: a natural gas feed; a cold box; one or more natural gas cooling components; and a storage tank configured to store a refrigerant, wherein the one or more natural gas cooling components and the storage tank are located within the cold box. The cold box can be a methane cold box and the refrigerant can be propane, ethane, or ethylene. The system can also include a propane refrigerant cycle and / or an ethylene refrigerant cycle. Refrigerant stored in the methane cold box can be used to replenish refrigerant lost in the propane / ethylene cycles. The cold box can be an ethylene cold box of the ethylene refrigerant cycle. Propane can be stored in the ethylene cold box. A second storage tank can be located within a methane cold box and store ethane or ethylene.

The invention discloses an MDEA compound system for decarburization and a synergistic interaction method, and relates to the technical field of natural gas treatment and gas purification, in the MDEA compound system, N-methyldiethanolamine as a main agent accounts for 20-30% of the total mass of the compound system, Ce-MCM-41 accounts for 5-10% of the total mass of the compound system, an ionic liquid accounts for 5-10% of the total mass of the compound system, and the balance is water. The activating agent accounts for 1-3% of the total mass of the compound system, and the balance is water. When the MDEA compound system is applied to a process for removing carbon dioxide in natural gas, solid impurities, part of degradation products and generated anionic salt in an amine-rich solution and a barren solution are effectively removed through a three-stage filtering system and an ion exchange resin tower which are arranged in a process system. Therefore, through the cooperative scheme of the MDEA compound system and the decarburization process, the removal rate of carbon dioxide in the feed gas can be increased, the loss of N-methyldiethanolamine in the MDEA compound system in cyclic utilization can be reduced, and meanwhile, the blockage of equipment and pipelines can be prevented and controlled, so that the purposes of reducing the cost and improving the efficiency are achieved.

The utility model discloses electric dehydration equipment for crude oil containing natural gas, which relates to the technical field of petroleum and natural gas processing and comprises a tank body, a transformer, an internal part and a pipeline, the interior of the tank body is sequentially divided into a gas-liquid separation area, an oil-water preliminary separation area, an electric removal area and an oil storage area; a crude oil inlet is formed in the side wall, located in the gas-liquid separation area, of the tank body, and the inlet distributor is located at the crude oil inlet in the tank body; the steady flow plate and the oil-water separation filler are arranged at the downstream of the gas-liquid separation area; the electrode plate is positioned in the electric stripping area and is connected with the transformer; the separation weir plate is used for separating the electric separation area from the oil storage area, and the oil storage area is provided with an oil purification self-vortex-prevention device and an oil phase opening; the demister is arranged at a gas phase opening in the top of the tank body; through the integrated design, the crude oil treatment process is simplified, the number of equipment and the occupied area are reduced, the investment and the operation and maintenance cost are reduced, and the treatment efficiency and the safety are improved.

The invention discloses key equipment for capacity expansion of an old platform of an offshore high-water-content oil field. Comprising a platform original first-stage three-phase separator, a platform original second-stage three-phase separator, a degassing desander, a platform natural gas treatment and recovery system, a platform oil-containing solid recovery system, a tubular vortex pre-dehydrator, a tubular vortex degreaser, a platform production water treatment and reinjection system, an exhaust pipe and a valve assembly. Degassing is completed through weak rotational flow and weight deposition formed by a tangential inlet, sand removal is completed through combination of secondary rotational flow formed by a flow stabilizing cylinder support and a flow adjusting component and an inclined plate, and it is guaranteed that follow-up tubular vortex water pre-diversion and a tubular degreaser work in the optimal working environment.

An offshore industrial complex for raw gas extraction, treatment, and processing includes a gravity-based structure (GBS) with a topside on it, including a drilling facility with drilling rig, flare unit, process equipment for raw gas treatment and processing as modules, and living quarters. The GBS has central and protruding parts. The central part is a rectangular prism with a top slab, on which the process equipment is installed. The protruding part stretches along the central part sides and has vertical external walls. The central and protruding parts share a base slab, the protruding part being lower in height than the central part. The central part has longitudinal and transverse walls that form compartments, including ballast compartments and compartments accommodating storage tanks for respective processed products. The protruding part has internal walls that are perpendicular to its external walls and form ballast compartments.

This invention relates to the field of natural gas processing equipment technology, and particularly to a method for diagnosing degradation faults in desulfurization towers during natural gas purification processes. The method comprises nine steps: multi-source synchronous acquisition of desulfurization tower operating information; time-consistency processing of operating information; adaptive fuzzy operating condition identification; equipment functional state construction oriented towards process functional semantics; function-process decoupling based on process constraints; establishment and deviation measurement of functional residual benchmarks; high-time-sensitivity determination oriented towards slow degradation evolution; degradation fault type diagnosis based on functional change structures; and online reconstruction and closed-loop self-calibration of functional benchmarks. This invention provides a desulfurization tower degradation fault diagnosis method capable of establishing stable functional benchmarks under continuously changing multi-condition conditions and effectively decoupling between equipment functional changes and process disturbances in strongly coupled environments. This improves the stability and accuracy of degradation diagnosis under long-term operating conditions, thereby enhancing the safety and reliability of natural gas processing systems.

The invention belongs to the technical field of natural gas treatment, and discloses a process method and system for removing methanol in liquefied gas by circulating water, the process method comprises the following steps: cooling alcohol-containing liquefied gas, reacting with water, and carrying out mass transfer and adsorption to separate methanol from liquefied gas to obtain methanol water and liquefied gas containing trace water; after removing trace water carried by the liquefied gas, storing the liquefied gas; collecting methanol-containing water, carrying out heat exchange on the methanol-containing water, filtering, and rectifying to obtain methanol and methanol-removed water; after the non-condensable gas in the methanol is separated, returning one part of the methanol as reflux liquid to the rectification process, and directly storing the other part of the methanol; one part of the methanol-removed water is used for providing a heat source in the rectification process, and the other part of the methanol-removed water is used for participating in the water reaction process after being cooled and filtered. The methanol in the liquefied gas is effectively removed by adopting the circulating water, the adaptability is strong, the operation is simple and convenient, the energy is saved, the environment is protected, and the product yield is improved.

The application discloses a non-contact natural gas dehydration heating equipment and relates to the technical field of natural gas processing.The first spiral heating pipe and the second spiral heating pipe arranged in a spiral cross manner are arranged in the isolation heating barrel, so that the natural gas can be fully heat-exchanged during conveying.The natural gas is heated in isolation from high-temperature water, water mist entrained in the natural gas can be effectively evaporated, and the water-vapor separation efficiency is improved.Compared with a traditional single-stage heat-exchange pipe line design, the staggered spiral pipe increases the heating area and the heat transfer path, so that the fine water mist particles in the natural gas can be completely gasified, and a good premise is provided for subsequent condensation separation; the condensation separation piece adopts a rotating structure, and grooves are arranged on the surface, so that the condensation area and the water drop adhesion capacity are significantly increased.Meanwhile, the centrifugal force is generated during the rotation of the separation piece, the condensed water can be quickly thrown away from the surface, the condensed water can enter the collecting groove and be guided to the water storage pool, and the water drops are prevented from being mixed into the natural gas again.

The present application relates generally to processes, systems, and compositions for disposal of liquid elemental mercury (Hg0) collected during processes such as crude and natural gas processing. In one embodiment, the application pertains to a process for converting Hg0 to HgS. The process comprises electrolytically oxidizing an aqueous composition comprising Hg0 to form dissolved Hg2+ in the presence of a composition comprising acetylacetone; sodium perchlorate; and perchloric acid. The formed dissolved Hg2+ is reacted with Na2S to form HgS. The formed HgS may be separated using a solid-liquid separation process.

The invention provides a compressor waste heat utilization system and method, and belongs to the technical field of oil field waste heat recycling, the system comprises a natural gas loop and a produced liquid loop, the natural gas loop comprises a compressor, the compressor comprises multiple stages of compression mechanisms arranged in a stacked mode, and the compressor pressurizes natural gas step by step through the multiple stages of compression mechanisms; the natural gas loop and the produced liquid loop share a plurality of heat exchangers, the heat exchangers in the natural gas loop correspond to the compression mechanisms, the heat exchangers are arranged at the rear ends of the compression mechanisms of the same stage, and natural gas and produced liquid conduct heat interaction through the heat exchangers. The method comprises the steps that the heat exchange process is subjected to analog calculation, step-by-step pressurization is conducted through the compressor, and multi-stage heat exchange is conducted through the heat exchanger. According to the system and the method, interstage compression waste heat utilization can be carried out on the compression mechanism, interstage heat and produced liquid are subjected to heat exchange, produced liquid heating is achieved, the waste heat utilization efficiency is improved, and meanwhile the energy consumption of a natural gas treatment system and the energy consumption of an oil and gas gathering and transportation treatment system are further reduced.

A natural gas processing system is mounted on a mobile platform that is transported to a natural gas source, such as a well. The system supplies natural gas to operate multi-fuel engines for wellfield equipment such as pumps, compressors, and drills. A liquid drain discharges contaminants. A water separator and a particulate filter remove particulate matter and liquid contaminant matter from the natural gas. A thermoelectric generator powered by the natural gas supplies process electricity. A process control monitors and controls the natural gas processing system, including pressure, temperature, moisture, and flow sensors. A gas chromatograph will determine the chemical composition of the natural gas. An emergency shutdown system will halt the process in the event of high liquid levels, a gas leak, fire, or gas composition out of specification, to include: H2S, H2O, Percent Mole Composition (BTU), Pressure, Temperature, and Flow Rate.

The utility model discloses a triethylene glycol dehydration device tail gas recovery processing sledge, which relates to the technical field of natural gas processing, and comprises a pretreatment part and a main processing part, the pretreatment part comprises a cooler, a refrigerating unit and a gas-liquid separation tank, the refrigerating unit is used for providing a refrigerant for the cooler, and the cooler is used for reducing the temperature of tail gas; the gas-liquid separation tank is used for separating liquid in the tail gas; the main treatment part comprises a gas-liquid mixed transportation pump and an analysis tank, the gas-liquid mixed transportation pump and the analysis tank are in closed circulation, the gas-liquid mixed transportation pump is used for pressurizing tail gas, and the analysis tank is used for analyzing dissolved-state light hydrocarbon into fuel gas. Through the synergistic effect of the refrigerating unit and the cooler, the tail gas is cooled to be below the dew point of a high-dew-point gaseous substance, and liquid components in light hydrocarbon can be separated and liquid triethylene glycol can be recycled by combining the gas-liquid separation tank; a closed flash evaporation cycle is constructed by adopting an analysis tank and a gas-liquid multiphase pump, and dissolved-state light hydrocarbon is analyzed into fuel gas, so that the loss rate of triethylene glycol can be reduced.

A gas management system is disclosed. The gas management system according to the present embodiment includes a natural gas processing apparatus configured to separate heavy hydrocarbons contained in natural gas and a natural gas liquefaction apparatus configured to provide cold energy to the natural gas, and may reduce facility building and operation costs because the heavy hydrocarbons are separated by receiving the cold energy during a process of liquefying the natural gas without building a separate facility for separating the heavy hydrocarbons from the natural gas.

The invention relates to the technical field of natural gas treatment, and discloses a natural gas dehydration method and system.The natural gas dehydration method comprises the steps that S1, water-containing natural gas is atomized through a Venturi tube; s2, the atomized water-containing natural gas enters a cyclone separator to be subjected to gas-liquid separation; s3, judging whether the gas-liquid separation efficiency of the cyclone separator meets a preset requirement or not, if not, returning to the step S1, and if yes, executing the step S4; and S4, carrying out fine dehydration treatment on the natural gas subjected to gas-liquid separation. The combined design of the Venturi tube and the cyclone separator is adopted, efficient dehydration of natural gas is achieved, the process steps are simplified, energy consumption is effectively reduced, economical efficiency is improved, the overall structure is simplified, equipment layout is greatly simplified, equipment cost and maintenance difficulty are reduced, and system reliability is improved.

The group of inventions relates to natural gas processing technologies. A method for recovering helium concentrate from dry gas is carried out in a helium concentrate recovery apparatus comprising a high-temperature heat exchanger, a medium-temperature heat exchanger, a low-temperature heat exchanger, a heavy component absorber that separates a feed stream into a heavy component stream and a helium-enriched stream, a helium recovery stripping column for obtaining a helium-saturated stream and a methane-saturated stream, and a non-condensable component separator. The stripping column is connected by an outlet for a part of a stripping column bottom liquid stream, via a valve, to an inlet of the medium-temperature heat exchanger, which serves as a reboiler for the stripping column. Streams of gas from the separator and the stripping column are mixed and fed to a helium recovery condenser column for separation into a helium concentrate and a bottom liquid stream predominantly containing nitrogen and methane. The condenser column is equipped with a condenser and a separator for helium recovery. The inventions make it possible to increase the recovery of helium concentrate from a gas feed stream at a pressure below 3.0 MPa (absolute).

A system is provided for handling blowdown gas evacuated from a pipeline segment. The system includes: one or more compressor units to receive the blowdown gas from the pipeline segment; an incinerator unit to receive the blowdown gas from the one or more compressor units; a flow control diverter valve; one or more sensors associated with each of the one or more compressor units, the one or more incinerator units, one or more pressure vessels, and interconnected piping to collect operational data and data about the blowdown gas; and a processor communicating with the one or more sensors to receive the operational data and data about the blowdown gas. The processor comprises algorithms to determine one or more switching pressures at which the blowdown gas should be redirected from a compression operation to an incineration operation. A method for handling blowdown gas evacuated from a pipeline segment is also provided.

This invention belongs to the field of natural gas processing technology and discloses a natural gas processing system and method for gas storage facilities. The natural gas processing system for gas storage facilities is used to remove oil from produced gas extracted from gas wells in a gas storage facility. It includes a production separator, a pipeline filter, a first cooler, a combined separator, a second cooler, a J-T valve, and a cryogenic separator connected in sequence. The inlet of the production separator is connected to the outlet of the gas well, and the outlet of the cryogenic separator is connected to a downstream gas pipeline. With this configuration, the produced gas undergoes two cooling processes via the first and second coolers, and then four separation processes via the production separator, pipeline filter, combined separator, and cryogenic separator. This significantly improves the oil-gas separation accuracy of the produced gas from the gas storage facility and reduces the impact on downstream equipment operation.

This utility model provides a high-efficiency cyclone sand separator for natural gas. It relates to the technical field of natural gas processing equipment and includes a shell, a top cover, an inlet pipe, an overflow pipe, a wear-resistant liner, a sand collection tank, a storage component, a sand cleaning component, a snap-fit ​​limiting component, and a support frame. The support frame is fixedly mounted on the shell. The inlet pipe is fixedly mounted on the shell and extends tangentially into the shell. The wear-resistant liner is snap-fitted into the shell and has through holes adapted to the inlet pipe. The top cover is detachably and sealingly mounted on the top of the shell. The snap-fit ​​limiting component is located on the top cover and connected to the shell. The overflow pipe is fixedly mounted on the top cover in a central position. This utility model has a reasonable design, achieving the goals of high-efficiency sand removal, low maintenance frequency, and stable operation, providing a reliable solution for impurity treatment during natural gas transportation.

Operating a natural gas processing plant, including receiving feed natural gas and processing the feed natural gas to give product natural gas. The processing includes removing acid gas, water, and non-methane hydrocarbons from the feed natural gas. The method includes providing fuel to a furnace and combusting the fuel in the furnace to heat a boiler to generate steam. The method generating steam with an HRSG. The method includes subjecting blowdown water from the boiler and the HRSG to electrolysis, thereby generating hydrogen gas. The method includes combining the hydrogen gas with the fuel and combusting the hydrogen gas in the furnace.

This utility model relates to the field of oil and gas processing technology and discloses an oil and gas processing and separation device, including a processing cylinder. A partition plate is fixedly connected to the inner cavity of the processing cylinder. A filter screen is installed in annular embedded shape on the top of the partition plate. A rotating shaft is rotatably connected to the top of the inner cavity of the processing cylinder through a bearing. The bottom of the rotating shaft passes through the partition plate and extends to the bottom of the partition plate. This utility model, by setting up a processing cylinder, partition plate, filter screen, rotating shaft, mounting plate, brush plate, gear, electric cylinder, L-shaped plate and toothed plate, can filter and separate impurities from oil and gas. At the same time, it facilitates the rotation and cleaning of the filter screen to remove impurities. By setting up a sealing plate and a material collection assembly, it can easily collect and store particulate impurities. By setting up the above structure, it can have a filter screen cleaning function, thereby meeting the needs of customers and reducing the labor intensity of workers.

The utility model discloses a triethylene glycol dehydration unit sulfur-containing tail gas injection processing skid relates to natural gas processing technical field, including integrated refrigeration cooling unit, cryogenic heat exchanger, set up between integrated refrigeration cooling unit and cryogenic heat exchanger's first pipeline type separator and set up in the output of cryogenic heat exchanger's second pipeline type separator. Through the setting of integrated refrigeration cooling unit and cryogenic heat exchanger, can effectively reduce tail gas temperature, ensure moisture, triethylene glycol, hydrogen sulfide and heavy hydrocarbon etc. Pollutant completely separates out, and the first pipeline type separator and second pipeline type separator synergistic effect can further strengthen gas -liquid separation effect, avoid pollutant residue.

The invention relates to the technical field of natural gas treatment equipment, and provides an efficient improved natural gas filtering separator which comprises a natural gas filtering separator body, a blockage detection unit, a controller and a local alarm device. A placing rod is fixedly connected to the top end of the connecting disc, a filter element tray is arranged outside the placing rod in a sleeving manner, and a filter element is arranged outside the filter element tray in a sleeving manner; the pressure difference between the two ends of the filter element is obtained through the first pressure difference sensor and the second pressure difference sensor, blockage is judged only when the pressure difference continuously exceeds the limit and the flow synchronously drops or the pressure difference increment exceeds the set multiple of the initial value, instantaneous working condition interference is effectively eliminated, and the false alarm rate is reduced; the filter element tray is fixedly connected with the sliding block, the motor body drives the rotating shaft to rotate, and the movable sleeve block is driven to axially move through screw-thread fit, so that the whole filter element is pushed to be stably lifted along the placing rod.

The present application relates to natural gas processing technical field, especially to a kind of hydrogen sulfide removal device in oilfield associated natural gas, including cylinder and the water tank being located in the lower end of cylinder and being communicated with cylinder, water tank is equipped with water in inside and its top is inserted with air inlet pipe, cylinder is equipped with the support rod that can move longitudinally in inside, the top packing layer is fixed in the top of support rod, multiple subsidiary packing layers are hung below top packing layer, the support rod is used to drive top packing layer and subsidiary packing layer to be lifted to immerse it in water, make its surface attach water and obtain uniform liquid film, to dissolve hydrogen sulfide and form sulfur ion, and top packing layer and subsidiary packing layer are used to promote sulfur ion oxidation and form sulfur element;The present application obtains uniform liquid film using lifting packing layer, and compared with leaching, there is no short circuit and no leaching dead angle, and the device has leaching and reaction absorption function simultaneously, hydrogen sulfide absorbed by water is also oxidized and removed, removal efficiency is higher than pure leaching effect and there is no secondary pollution.

The utility model relates to the technical field of natural gas processing, in particular to an efficient energy-saving natural gas processing device which comprises a cold box body, a box cover is installed on the top of the cold box body, and natural gas pipelines are horizontally installed on the two sides of the cold box body in a penetrating mode. A cooling sleeve is installed on the lower portion of one side of the cold box body and located outside the natural gas pipeline. According to the improved natural gas processing device, through the cooling sleeve and the water pump, natural gas in the natural gas pipeline can be cooled through cooling water, through the design of the spiral inner wall, the staying time of the cooling water outside the natural gas pipeline can be prolonged, and then the cooling efficiency is improved; according to the natural gas pipeline cold box, the cold box body is arranged, so that effective pretreatment work can be carried out, the time for cooling the natural gas pipeline by cooling water in the cold box body is shortened, the working efficiency is effectively improved, the cooling water can be effectively recycled, and the situation that cooling water is wasted is avoided.

The invention relates to the field of natural gas treatment equipment. The invention discloses a removal device and method for reducing formation of hydrates in natural gas. The removal device comprises a tower body, a gas inlet is formed in the side edge of the tower body, a partition plate is fixedly connected to the interior of the tower body, a driving motor is fixedly connected to the surface of the tower body, and a vacuum pump is fixedly connected to the surface of the tower body. An air outlet pipe of the vacuum pump is composed of telescopic pipes, a telescopic air opening is formed, a filter cylinder is rotationally connected into the tower body, a filter screen is fixedly connected into the filter cylinder, a water outlet is formed in the lower surface of the tower body, an air outlet pipe is arranged on the lower surface of the filter cylinder, and the air outlet pipe extends outwards and is in one-way connection with the filter cylinder. In the invention, by combining centrifugal separation, compaction adsorption and vacuum regeneration mechanisms, not only is deep dehydration of natural gas ensured to effectively inhibit hydrate formation, but also hardening and blockage of a drying agent bed layer are effectively prevented by mechanical stirring, and the stability and reliability of long-term operation of the device are ensured.

The utility model relates to the technical field of natural gas treatment, in particular to desulfurization pre-purification equipment for natural gas, and solves the problem that in the prior art, when the existing desulfurization pre-purification equipment treats desulfurized gas, the gas and liquid are difficult to effectively separate after being mixed, so that the dryness of the gas cannot be kept. Desulfurization pre-purification equipment for natural gas comprises a dust removal stirring barrel, a desulfurization tower, a sedimentation treatment barrel and a cleaning module, a partition plate and a lifting plate are arranged in the sedimentation treatment barrel, a through hole is formed in the top of the partition plate, a plugging rod matched with the through hole is connected to the top of the lifting plate, a push-pull mechanism is arranged at the top of the sedimentation treatment barrel, and the output end of the push-pull mechanism is connected with the plugging rod. The push-pull mechanism is used for controlling the plugging rod to move up and down, controllable opening and closing of the through hole are achieved, desulfurized gas and liquid are effectively separated, the dryness of the gas is kept, and the pre-purification efficiency and quality of natural gas are improved.