1531 results about "Gas blending" patented technology

The invention relates to a facility for producing liquid CO2 and biomethane, comprising: —a unit for producing biogas; —at least one unit for the membrane separation of biogas to produce biomethane and a gaseous mixture M1 mainly comprising carbon dioxide; —a unit for cryogenically distilling the gaseous mixture M1 to produce liquid CO2 and a gaseous mixture M2 comprising carbon dioxide, methane, oxygen and hydrogen; —one or more membranes located in the flow of the gaseous mixture M2 to separate the methane from the oxygen-hydrogen mixture

A system and method for, removing carbon dioxide from a carbon dioxide laden gas mixture, the system comprising a group of carbon dioxide removal structures moving along a closed curve track. At one location along the track is located a desorption or regeneration box, into which each capture structure passes in order to be regenerated. The majority of the CO2 removal structures are fed ambient air, or an admixture of ambient air with a minor portion of a flue gas, and exhaust CO2-lean air. At least one selected such removal structure within each group, at a location immediately preceding its entry into the capture structure, is fed a flue gas comprising at least 4% CO2 by volume. A method for removing carbon dioxide from the atmosphere is provided utilizing a system operating in the same manner as the preceding system.

A blower (1) for a fuel cell assembly for recirculating a gas mixture used for operating the fuel cell assembly is equipped with a drive motor (7, 8, 9) comprising a rotor (9) coupled to a motor shaft (7) and a stator (8) arranged radially outside the rotor (9). An annular channel (10) is provided radially between the rotor (9) and the stator (8) for conveying the gas mixture from an inlet side to an outlet side of the annular channel (10). A blower impeller (5) coupled to the motor shaft (7) is provided in the region of the outlet side of the annular channel (10) to convey the gas mixture from the inlet side to the outlet side of the annular channel (10) when rotating. Furthermore, a flow guide device (14) is provided to impart a circumferential swirl to the gas mixture entering the annular channel (10).The annular channel (10) is bounded by an assembly consisting of an outer wall (16; 21) and an inner wall (17), wherein the flow guide device (14) is provided on the inlet side between the outer wall (16; 21) and the inner wall (17).

The present disclosure relates to a carbon-based nanomaterial composition that may be formed from a gas mixture and a sulfur powder. The gas mixture may include a carbon based gas, an oxygen gas, and a hydrogen gas. The carbon-based nanomaterial composition may include sulfur doped nanospheres.

The invention relates to a process for producing carburized directly reduced iron sponge from iron oxide material. Firstly, direct reduction is carried out by means of a reduction gas consisting at least predominantly of H2 and the carbon content in the iron sponge is then increased by means of a carburizing gas which is fed in, after which used carburizing gas is at least partly taken off while largely avoiding mixing with the reduction gas. The plant for producing carburized directly reduced iron sponge from iron oxide material comprises a reduction zone for directly reducing introduced iron oxide material to directly reduced product by means of reduction gas consisting predominantly of H2 and a reduction gas feed conduit opening into the reduction zone. It also comprises a carburization zone having a carburizing gas feed conduit opening into the carburization zone and a carburization offgas conduit.

The invention relates to the technical field of industrial monitoring, in particular to a gas mixture detection model construction method and a gas mixture detection method.The gas mixture detection model construction method comprises the steps that spectral data of a plurality of gas mixtures are obtained; constructing a basic detection model based on a CNN model and a KAN model; and training the basic detection model based on the spectral data to obtain a gas detection model. The invention provides a gas mixture detection method based on a CNN network and a KAN network, which is combined with spectral analysis technologies such as infrared spectroscopy (IR) or Fourier transform infrared spectroscopy (FTIR) and the like, and can improve the recognition speed and precision of complex mixed gas. Through the combination of the technologies, rapid and accurate detection and concentration analysis of various gaseous molecular pollutants in air can be realized, a more reliable air quality control means is provided for the industrial manufacturing process, and the yield and quality stability of products can be improved.

A perforated packing for capturing carbon dioxide (CO2) from a dilute gas mixture includes at least one perforated mg) structure and a feed structure. The at least one perforated structure includes a body that includes at least one wall defining an inner volume of the body and an outer surface exposed to the dilute gas mixture; and a plurality of perforations extending through the at least one wall between the inner volume and the outer surface. The feed structure is fluidly coupled to the body and operable to flow a CO2 capture solution into the inner volume of the body, through the plurality of perforations, and along the outer surface to form a liquid film of the CO2 capture solution along at least part of the outer surface, the liquid film of the CO2 capture solution configured to absorb CO2 from the dilute gas mixture.

The invention discloses an organic waste gas purification treatment device, which comprises an adsorption purification structure and an auxiliary adjustment structure, the adsorption purification structure is a tank body, the upper part in the adsorption purification structure is connected with an activated carbon filter layer through a bolt, and steam moving sheets are arranged in steam hoods on the upper and lower ring surfaces of the adsorption purification structure and are connected with a steam main pipe and a steam auxiliary pipe through pressure relief conduits; the auxiliary adjusting structure is arranged on the left side of the adsorption purification structure and communicated with the lower end, a cavity dividing plate, a supporting frame body and other components are arranged in the organic waste gas pipe body, and a hydraulic pipe on the supporting frame body is connected with a high-concentration blocking net plate and connected with a gas supply pipe and a water supply pipe through a series of mechanical transmission; when the device is used, low-concentration organic waste gas can be directly purified; when high-concentration and high-temperature organic waste gas is treated, the waste gas and supplementary gas can be mixed, cooled and concentrated, so that the waste gas and supplementary gas meet activated carbon adsorption conditions, and meanwhile, steam can be utilized to push the steam movable sheet to construct a closed environment, so that organic matters adsorbed by activated carbon are quickly desorbed and output and recovered along with the steam.

The utility model discloses a multi-element gas automatic mixing device which comprises a plurality of gas branches, all the gas branches are jointly connected with a gas main path, the gas main path is connected with a mixing tank, the gas main path is provided with a static mixer, the mixing tank is provided with a dynamic mixer, and the static mixer is connected with the dynamic mixer. A gas outlet of the mixing tank is sequentially provided with a first-stage buffer tank, a second-stage buffer tank, a third-stage buffer tank and a first gas storage chamber in the gas conveying direction, and efficient mixing of gas is achieved through a static mixer and a dynamic mixer. The static mixer utilizes a spiral structure to generate rotation and turbulent flow to promote uniform mixing of gas; under the condition that the gas flow speed is lower or the gas types are more, the dynamic mixer is provided with an electric stirring blade, the mixing uniformity is further improved through mechanical stirring, the gas enters the buffer tank after being mixed through the arrangement of the multi-stage buffer tank, the pressure fluctuation is reduced, and the flow speed is homogenized. And the repeated diffusion and distribution process in the buffer tank improves the mixing uniformity of the gas.

An apparatus and method for determining the presence of a disease by analyzing a specimen by providing a vial partially containing the specimen and partially containing a headspace above the specimen, injecting an inert gas into the specimen in the vial to cause bubbling of the gas throughout at least a portion of the specimen such that the gas mixes with volatile organic compounds (VOCs) present in the specimen to create a VOC / gas mixture that is released into the headspace, collecting the VOC / gas mixture from the headspace in the vial, supplying the VOC / gas mixture to a chamber within the apparatus, causing the VOC / gas mixture to pass over a sensor array in proximity to the chamber, the sensor array generating an electrical signal as a function of VOCs detected in the VOC / gas mixture, and processing the electrical signal to determine the presence of a disease in the specimen.

This invention relates to materials, methods, and systems for carbon dioxide (CO2) capture. More specifically, this invention relates to materials, methods, and systems for removing, capturing, separating, and / or adsorbing carbon dioxide (CO2) from a gas mixture. Additionally, this invention relates to materials, methods, and systems for direct air capture (DAC) of CO2 from ambient air. This invention also relates to materials, methods, and systems for direct air capture (DAC) and methanation of CO2 from ambient air.

A system for removing CO2 from a dilute gas mixture includes a frame including a plurality of structural members; at least one packing section including one or more packing sheets, the one or more packing sheets including a plurality of macrostructures; one or more basins positioned at least partially below the at least one packing section, the one or more basins configured to hold a CO2 capture solution; at least one fan positioned to circulate a CO2 laden gas through the at least one packing section; and a liquid distribution system configured to flow the CO2 capture solution onto the at least one packing section.

A method for preparing a sorbent material (3) for separating gaseous carbon dioxide from a gas mixture, preferably from at least one of ambient atmospheric air (1), flue gas and biogas, containing said gaseous carbon dioxide as well as further gases different from gaseous carbon dioxide, by cyclic adsorption / desorption using a sorbent material (3) capable of reversibly binding carbon dioxide and adsorbing said gaseous carbon dioxide in a unit (8), wherein the sorbent material (3) comprises: primary amine moieties as well as at least one of secondary amine, and tertiary amine moieties immobilized on a solid support, and is made using an amination pathway avoiding cross-linking.

A method of storing hydrogen (H2) gas in a subsurface formation having an injection well, a production well and a heat well. The method includes injecting a first fluid stream into the subsurface formation via the at least one injection well to form a first composition containing a gas-phase mixture, a liquid-phase mixture and a solid matrix; injecting a H2-containing gas stream into the subsurface formation via the at least one injection well to form a gas mixture containing H2 gas; and heating and pressurizing the subsurface formation containing the gas mixture via the at least one heat well thereby achieving a storage condition and maintaining the storage condition to store the H2 in the subsurface formation.

A method for the generation of a gas mixture including carbon monoxide, carbon dioxide and hydrogen for use in hydroformylation plants, including the steps of evaporating water to steam; feeding the steam to a solid oxide electrolysis cell (SOEC) or an SOEC stack at a sufficient temperature for the cell or cell stack to operate while effecting a partial conversion of steam to hydrogen; utilizing the effluent SOEC gas including H2 together with CO2 from an external source as feed for a RWGS reactor in which the RWGS reaction takes place, converting some of the CO2 and H2 to CO and H2O; removing some of or all the remaining steam from the raw product gas stream; using said gas mixture comprising CO, CO2 and H2 for liquid phase hydroformylation utilizing carbon monoxide and hydrogen as reactants, while recycling CO2 to the RWGS reactor.

The invention discloses a cleaning method and equipment for improving the cleanliness of a solid surface. The cleaning method comprises the steps that a cleaning medium containing a cleaning liquid and a gas mixture is injected into a cleaning tank, gas exists in the cleaning medium in the form of micro-nano bubbles, the concentration of the micro-nano bubbles is 106-1012 / L, and the pressure of the gas is 0.01-2.00 MPa; ultrasonic waves with the frequency range of 1 kHz to 1 MHz are applied into the cleaning tank through a multi-frequency ultrasonic wave generating device; and the cleaning medium is adjusted to circularly flow in the cleaning tank so as to clean the surface of the solid. According to the solid surface cleaning method combining the micro-nano bubbles and the ultrasonic technology, the cleaning efficiency and effect are remarkably improved by optimizing generation, distribution and stability of the bubbles and accurately controlling interaction between ultrasonic waves and the bubbles.

The invention discloses process equipment and method for high-temperature nitrogen-free sintered magnesia, and belongs to the technical field of high-temperature combustion of industrial kilns, and the process equipment is composed of a calcining kiln, a bag-type dust collector, an induced draft fan, a gas cooler, a gas mixer, a liquid oxygen storage tank, a gasifier, PLC control equipment and a high-pressure fan. The oxygen content in the mixed gas is controlled to be 21-25%, artificial nitrogen-free combustion-supporting air is obtained to replace air to complete sintering of magnesia, air is not used, 79% of nitrogen components in the air are prevented from entering a combustion system, discharged tail gas is reduced by more than 2 / 3, heat loss in smoke is reduced, nitrogen oxide is not generated, catalytic reduction denitration is not needed, and the production cost is reduced. As the flue gas does not need to be heated, the energy consumption cost is saved. The concentration of carbon dioxide in discharged flue gas can reach more than 90%, liquid carbon dioxide is prepared through pressurization, and waste is turned into wealth.

The present disclosure provides a non-condensable gas reduction system that reduces the effects of atmospheric components contained in gas that is reduced in the reduction well. [Solution] A non-condensable gas reduction system in a geothermal power plant returns non-condensable gas that remains uncondensed when cooled from a first gas contained in geothermal fluid that springs from a production well to a reinjection well. The non-condensable gas reduction system comprises: a pump that pressurizes the first liquid sent to the reinjection well; an ejector that is driven by the first liquid, attracts the non-condensable gas, and discharges a second liquid that is a mixture of the first liquid and the non-condensable gas; and a gas separator connected downstream of the ejector that separates the second gas containing atmospheric components that has been mixed into the second liquid, and discharges the second gas into the atmosphere while discharging the second liquid into the reinjection well.

The invention relates to a hookah main machine with a reinforced atomization air channel and an electronic hookah. The hookah main machine specifically comprises a main machine body. The main machine is provided with a heating part, a second air inlet hole, an air outlet hole, a cavity used for containing tobacco materials and a heating part used for heating the tobacco materials. The second air inlet hole is communicated with the cavity and the air outlet hole to form the second air channel; wherein the number of the second air inlet holes is at least one; the second air inlet holes are formed in the periphery of the cavity; and when air is exhausted through the air outlet hole, external unheated air enters through the second air inlet hole, is mixed with the heated air around the cavity and is exhausted from the air outlet hole. By means of the second air inlet holes, the problems that tobacco materials in the tobacco bowl are only far away from the surface of the tobacco bowl and make contact with outside air, the air in the tobacco bowl is difficult to evenly enter the tobacco materials, the tobacco materials are not completely burnt, and the atomization effect of the tobacco materials is poor are solved, and it is ensured that cold air and heated gas of the tobacco materials are convectively atomized in the using process and are discharged from the air outlet holes.

Disclosed are multi-cartridge hollow fiber membrane apparatuses and methods for gas separation using them. Each external pressure type membrane apparatus contains one or more series of cartridges wherein the cartridges within each series are arranged sequentially. The retentate gas generated by each preceding cartridge in the series is used as a feed gas to the next cartridge in the series, and the permeate gas generated by a cartridge following the first cartridge in the series is used as a sweep gas on the permeate side of the preceding cartridge. The multicomponent gas mixture is separated into one or more products by the method of the invention with improved product recovery and / or product purity.

The invention relates to the technical field of gas mixing, and discloses a natural gas hydrogen-doped mixer which comprises an injector, a mixing pipeline and a rectifying piece, the injector comprises a central cavity and at least one annular cavity, the central cavity and the annular cavity are coaxially arranged, the annular cavity is located on the peripheral side of the central cavity, the central cavity is used for introducing natural gas, and the annular cavity is used for introducing hydrogen; in the flowing direction of the natural gas, the through-flow area of one side, close to the outlet, of the central cavity is gradually increased; the mixing pipeline is connected with the injector, and the rectifying part is arranged in the mixing pipeline. In the natural gas hydrogen-doped mixer, the hydrogen surrounds the natural gas jet flow, due to the fact that the speed difference exists between the natural gas and the hydrogen, the hydrogen sprayed at a high speed drives the natural gas flowing at a low speed after entering the mixing pipeline, the natural gas and the hydrogen are mixed in the shear layer, and the effect is good. The through-flow area of one side of the outlet of the central cavity is gradually increased, on one hand, the injection range of the natural gas is increased, the contact area of the natural gas and hydrogen is increased, and the mixing effect is better.

The embodiment of the invention provides an underground gas detection method, a gas detector, electronic equipment and a storage medium, and belongs to the field of gas detection. The method comprises the following steps: collecting underground gas data, and determining corresponding infrared spectrum data based on the underground gas data; performing Fourier transform on the infrared spectrum data to obtain a spectrum absorption peak; based on a pre-established gas infrared spectrum database and a spectrum absorption peak, the type and the concentration of underground gas are identified, vibration information of gas molecules with extremely low concentration can be captured by utilizing an infrared spectrum technology, so that accurate measurement of the underground gas concentration is realized, and the method aims at complex and variable environments and accurate measurement of the underground gas concentration. An underground environment with a plurality of gases mixed exists, the characteristic absorption peaks of the plurality of gases can be detected at the same time by utilizing an infrared spectrum technology, effective identification and separation of the mixed gases are realized, and further comprehensive and accurate monitoring of the underground gases is realized, so that a safe operation environment is provided.

The invention discloses an acid-making process using hydrogen sulfide waste gas and waste sulfuric acid, and relates to the technical field of acid-making processes, and the acid-making process specifically comprises the following steps: step 1, high-temperature reaction and gas generation, step 2, gas purification and conversion, a demister and a spraying assembly are used for removing dust, impurities and harmful substances in the gas; and step 3, sulfur trioxide absorption and sulfuric acid preparation. According to the acid-making process using the hydrogen sulfide waste gas and the waste sulfuric acid, the absorption slurry is sprayed out through the nozzle to be in countercurrent contact with the gas mixture, physical absorption and chemical reaction are combined, dust, impurities and other harmful substances in the gas mixture are effectively removed, and the gas purification efficiency is improved; the nozzles at the upper end and the lower end are used for spraying and cleaning the corrugated plate, it is ensured that the corrugated plate is always kept clean, system efficiency reduction caused by blockage or pollution of the corrugated plate is reduced, and the operation efficiency and stability of the whole system are improved.

The invention discloses micron-sized Cu powder and a preparation method thereof.The method comprises the steps that raw materials are placed in a heating chamber, the heating chamber is vacuumized so that the vacuum degree can reach 80-150 KPa, and inert gas is introduced; the raw materials are subjected to heating treatment, the heating treatment temperature ranges from 1300 DEG C to 1700 DEG C, and the heat preservation time ranges from 10 min to 20 min; and cooling treatment is conducted on the Cu steam, the cooling treatment comprises the steps that the Cu steam and inert gas are mixed and then supplied into a closed space with a condenser, the flowing speed of the Cu steam and the inert gas supplied into the closed space is not lower than 500 ml / s, and the temperature difference of a cooling medium in the condenser before and after cooling treatment is not larger than 30 DEG C. According to the method, the micron-sized Cu powder which is uniform in size distribution and good in roundness can be obtained through simple operation.

Method for the preparation of sorbent material for use as adsorbent for carbon dioxide separation from a gas mixture, the sorbent material having primary amine or secondary amine moieties, or a combination thereof, immobilised on a solid support, wherein the sorbent material has primary amine or secondary amine moieties, or a combination thereof, is treated so as to have, after treatment, a total metal impurity content below 1400 ppm.

The invention discloses a natural gas hydrogen-doped or pure hydrogen verification and calibration loop. The loop comprises a gas supplementing and exhausting device, a filtering device, a circulating fan, a heat exchanger, a temperature control system, a bypass adjusting device, a working-grade standard device, a detected device, a transmission turbine device and a verification control system which are sequentially connected according to a gas flowing sequence to form the loop, the calibration method comprises the following steps: step 1, analyzing an obtained gas component xi by a mass spectrum analyzer; 2, calculating a contrast density function # imgabs0 # and a contrast temperature function # imgabs1 #; 3, assuming the molar density rho value of the gas mixture to obtain the contrast density delta and the reciprocal tau of the contrast temperature of the gas mixture; and 4, calculating to obtain comparison Helmholtz free energy # imgabs2 # binary comparison Helmholtz free energy # imgabs3 # and ideal Helmholtz free energy # imgabs4 #. The loop and the calibration method effectively solve the problems of verification and calibration of the detected flowmeter for trade measurement of natural gas doped hydrogen or pure hydrogen gas.

The present disclosure relates generally to a system for inflating a balloon and more particularly to a system and methods by which parameters for an inflation process are defined based on design and location of a balloon. Particularly, the system is configured to, automatically or in response to a user input, execute an inflation process to facilitate providing a defined minimum amount of a lighter-than-air gas followed by one or more supplemental gases to create a mixture within the balloon. Advantageously, the system may be configured to optimize an amount of each gas injected based on a design and location of the balloon and output an interface including costs, savings, and parameters relating to the location, design, and / or gaseous mixture.

There is provided a method for nitrogen oxide (NOx) synthesis, the method comprising: - providing a gas mixture comprising oxygen and nitrogen in a plasma reactor chamber; and - exciting the gas mixture into plasma in the plasma reactor chamber, wherein a duration of the excitation is in the range ≥0.15 / P nanoseconds & ≤90 / P nanoseconds, wherein P is pressure of the gas mixture in atm, and wherein the gas mixture is provided at a pressure P of ≥ 1.1 atm.

The invention belongs to the field of simulation optimization control, and particularly relates to a biomass gas blending combustion parameter optimization simulation control system based on combustion product prediction, and the system comprises an acquisition module which carries out data preprocessing based on multi-source pilot frequency sampling and through frequency division domain adaptive filtering and variable step size gradient descent optimization; the prediction module is used for predicting combustion product characteristic indexes through a mechanism and data driven double-layer fusion model; the control mapping module is used for obtaining a boiler control response parameter set by adopting deep reinforcement learning strategy network analysis under multi-target constraint; and the simulation adjustment module is used for loading control parameters in the digital twin platform, judging deviation based on a dynamic self-adaptive threshold value and triggering closed-loop feedback adjustment. According to the method, the problems of inaccurate pollutant prediction and control lag caused by fluctuation of biomass raw materials are solved, and feed-forward accurate control and closed-loop adaptive optimization are realized.

The invention discloses an atmospheric trace water-soluble metal element automatic sampling and pretreatment system, the system comprises an automatic sampling module and a pretreatment module, the automatic sampling module is provided with a gas introduction device, a gas corrosion device and a mixing growth chamber from front to back in sequence, and the mixing growth chamber is connected with the pretreatment module; the gas corrosion device is used for separating particulate matters and gas in a to-be-collected atmospheric sample, and the mixed growth chamber enables the particulate matters to grow and condense in supersaturated water vapor to obtain a primary sample; the pretreatment module comprises a sample enrichment unit and an automatic calibration unit; the sample enrichment unit is used for carrying out enrichment treatment on the primary sample through a bubble remover and a plastic injector; the automatic calibration unit is used for sequentially carrying out acid pickling, water washing, sample dilution and quantitative calibration on the enriched sample to finish the pretreatment process of the sample; according to the system, the sampling efficiency and the data reliability are remarkably improved, the automation degree is high, manual operation is reduced, personal errors are reduced, and the monitoring efficiency is improved.