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2225 results about "Co carbon monoxide" patented technology

Carbon monoxide - CO - is an odorless, tasteless, colorless and toxic gas. Carbon monoxide is a by-product from combustion processes. Any combustion process, fuel burning appliance, vehicle or other device has the potential to produce toxic carbon monoxide gas.

Hydropower station unit fire alarm auxiliary decision-making management system

The invention discloses a hydropower station unit fire alarm auxiliary decision-making management system, which relates to the technical field of power equipment safety and comprises a fire data acquisition module, a fire data analysis module, a fire alarm module, a linkage control module and a system management module. And the fire data acquisition module is used for acquiring fire related parameter data in a hydropower station unit area in real time, wherein the fire related parameter data comprises smoke concentration, temperature change rate, flame characteristics and carbon monoxide concentration. By adopting multiple types of sensor units, a smoke sensor, a temperature sensor, a flame sensor, a carbon monoxide sensor and the like are covered for combined acquisition, compared with the condition that the types of sensors of an existing system are limited, multi-dimensional fire related data can be comprehensively and accurately acquired, deep analysis is performed on the acquired data by means of an intelligent algorithm, and the accuracy of the system is improved. The historical data and the real-time data are compared, the false alarm probability is reduced, and the alarm accuracy is improved.
Owner:THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD

Process for the production of hydrogen from methanol

The present application relates to hydrogen production technology field, especially to a kind of methanol hydrogen production method, comprising the following steps: S10: methanol water is heated and vaporized to obtain methanol water vapor;S20: methanol reforming reaction obtains hydrogen mixture gas;S30: after cooling treatment to hydrogen mixture gas, through water washing tower absorption unreacted methanol water, then, adjust the relative humidity and temperature of hydrogen mixture gas;S40: hydrogen mixture gas is input into carbon dioxide absorption tower to remove carbon dioxide;S50: after removing carbon dioxide, product hydrogen is obtained and input hydrogen tank storage to supply user end.The above-mentioned methanol hydrogen production method, by methanol water vapor reforming hydrogen treatment, obtains hydrogen mixture gas.Again, hydrogen mixture gas is purified to obtain product hydrogen with very low carbon monoxide content, with raw material easy to transport, the hydrogen purity of output is high, equipment construction cost is low, and energy consumption is low and the like advantages, reach the purpose of expanding hydrogen application range.
Owner:GUANGDONG LANJIU NEW ENERGY TECH CO LTD

Method for preparing carbon monoxide oxidation catalyst by using waste vanadium-titanium catalyst and electroplating sludge

The invention discloses a method for preparing a carbon monoxide oxidation catalyst by using a waste vanadium-titanium catalyst and electroplating sludge, which realizes the mutual reaction of metal components in the electroplating sludge and components in the waste vanadium-titanium catalyst through the synergistic effect of various physical and chemical treatment methods and additives in the whole preparation process. The complex multi-metal catalyst can be used for photo-catalytic oxidation of carbon monoxide, has a remarkable oxidation effect and has a good application prospect.
Owner:SHAOXING UNIVERSITY

Underground coal mine air and water pumping switching electro-hydraulic control system and method

The invention provides an underground coal mine air and water pumping switching electro-hydraulic control system and method, the electro-hydraulic control system comprises an air supply control module, a water supply control module, a negative pressure control module and an oil supply module, and the method adopts a remote control system to control the underground coal mine air and water pumping switching electro-hydraulic control system. According to the underground coal mine air and water pumping switching electro-hydraulic control system, air and water pumping electric control rapid opening and closing and rapid switching of different functions are achieved, the automation degree of air and water pumping switching is improved, and the air and water pumping switching time is shortened; and meanwhile, when dangerous working conditions that gas accumulation exceeds the limit due to hole blocking behind the drill hole or carbon monoxide gas appears in the drill hole and the like, rapid and automatic response processing can be achieved. The air and water pumping conversion efficiency is improved, the labor intensity of workers is relieved, and key technical support is provided for coal mine underground automatic drilling whole-process operation.
Owner:XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP +1

Efficient pulsating heat pipe air pre-heater gas stove

The invention discloses an efficient pulsating heat pipe air pre-heater gas stove, and relates to the technical field of gas stoves. The air pre-heater comprises an air pre-heater body, a pulsating heat pipe and an air supply pipeline, the pulsating heat pipe is embedded in an inner cavity of the air pre-heater body, and the bottom of the air pre-heater body communicates with the top of the air supply pipeline; the air pre-heater body comprises a heat insulation radiation cavity and an air pre-heating cavity. The heat transfer efficiency of the pulsating heat pipe is far higher than that of traditional metal heat conduction, heat of high-temperature flue gas can be rapidly absorbed, waste heat loss is reduced, the heat efficiency is improved, secondary air is heated through the air preheater, the temperature of the secondary air is increased, the combustion temperature is increased, gas combustion is more sufficient, emission of carbon monoxide and nitric oxide is reduced, and the energy-saving and environment-friendly effects are achieved. The pulsating heat pipe has the unique advantages of being small and exquisite in structure, flexible in arrangement and efficient in heat transfer, and the heat efficiency of the gas stove is effectively improved through the L-shaped pulsating heat pipe heat insulation air pre-heater structure.
Owner:NANJING TECH UNIV

Method for preparing carbon monoxide oxidation catalyst by using red mud and tungsten-molybdenum smelting slag

The invention discloses a method for preparing a carbon monoxide oxidation catalyst by using red mud and tungsten-molybdenum smelting slag, which comprises the following steps of: uniformly stirring and mixing the red mud and the tungsten-molybdenum smelting slag at a high speed, mixing with inorganic strong acid, and performing ultrasonic-assisted stirring to obtain acid leaching slag; the acid leaching residues are subjected to low-temperature plasma activating treatment and then microwave activating treatment, and microwave activated plasma residues are obtained; weighing tricalcium phosphate and microwave activated plasma slag, and uniformly stirring to obtain phosphorus-calcium doped activated slag; weighing an ammonium sulfide solution and the phosphorus-calcium doped activated slag, uniformly stirring, transferring the obtained sulfur-phosphorus-calcium doped activated slag into a hydrothermal reaction kettle, carrying out hydrothermal reaction, carrying out compression molding on the obtained hydrothermal composite material, and carrying out pyrolysis carbonization treatment in an inert gas atmosphere to obtain the phosphorus-calcium doped activated slag. The obtained pyrolysis composite material is soaked with a silane coupling agent solution and then roasted again, and the carbon monoxide oxidation catalyst is obtained. The catalyst prepared by the invention can realize efficient oxidation photocatalysis of carbon monoxide under the conditions of normal temperature and normal pressure.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Garbage feeding device for incineration power generation and adjusting method

The invention relates to the technical field of garbage feeding control, in particular to a garbage feeding device for incineration power generation and an adjusting method. Garbage water content characteristics are analyzed through leachate flow time sequence data, density characteristics are quantified in combination with load coefficients, combustion characteristics are represented through carbon monoxide concentration changes, and a leachate characteristic coefficient, density characteristic coefficient and combustion characteristic coefficient three-dimensional index system is constructed. A clustering algorithm is adopted to carry out mode recognition on garbage grabbing operation, and clustering clusters with similar combustion characteristics are formed. In a cluster to which current garbage grabbing operation belongs, parameters of a feeding speed and a shake-off speed are dynamically optimized based on carbon monoxide concentration distribution characteristics, and a traditional fixed control mode is replaced. According to the method, intelligent matching of garbage component changes and process parameters is achieved, the combustion process is optimized through leachate management, pile compaction degree and the like, and garbage combustion sufficiency is remarkably improved.
Owner:DONGGUAN BOHAI ENVIRONMENTAL PROTECTION RESOURCES DEVELOPMENT CO LTD

High-entropy metal oxide catalyst, preparation method thereof and application of high-entropy metal oxide catalyst in CO catalytic oxidation

The invention discloses a high-entropy metal oxide catalyst as well as a preparation method and application thereof in CO catalytic oxidation, and belongs to the technical field of flue gas treatment. The preparation method comprises the following steps: dissolving copper salt, manganese salt, cerium salt, cobalt salt, vanadium salt and a dispersing agent into water to form a uniform solution, and slowly adding excessive alkali precipitant into the uniform solution to form a solid-liquid mixture; the solid-liquid mixture is transferred into a high-pressure kettle to be subjected to a hydrothermal reaction and then quenched, an obtained hydrothermal reaction product is calcined, and the high-entropy metal oxide catalyst is obtained and is high in catalytic oxidation activity on carbon monoxide at the low temperature, excellent in water resistance and sulfur resistance and particularly suitable for treatment of complex flue gas.
Owner:CENT SOUTH UNIV

Vanadium oxide-based supported platinum catalyst as well as preparation method and application thereof

The invention discloses a vanadium oxide-based supported platinum catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: a) carrying out high-temperature heat treatment on a V precursor to obtain orange V2O5 carrier powder; b) adding V2O5 powder, a Pt metal precursor and a sacrificial reagent into the solution, carrying out ultrasonic treatment, stirring, and reacting under the irradiation of a xenon lamp to obtain a dark brown suspension; c) centrifuging, washing, drying, grinding and roasting the dark brown suspension to obtain dark brown powder; and d) carrying out three times of high-temperature heat treatment on the dark brown powder under different protective gases, and sequentially carrying out three processes of oxidation, reduction and partial oxidation to obtain the vanadium oxide-based platinum-loaded catalyst. The catalyst prepared according to the invention is applied to a carbon monoxide oxidation reaction, and has the advantages of excellent catalytic performance, long-time stability and good recycling stability at a high space velocity.
Owner:SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI

Transformer state comprehensive prediction and evaluation method and system based on decision cascade fusion analysis, and storage medium

The invention belongs to the technical field of power transformer monitoring, and particularly relates to a transformer state comprehensive prediction and evaluation method and system based on decision cascade fusion analysis and a storage medium. Analyzing the concentration of the characteristic gas dissolved in the oil in different operation states according to the oil sample, and calculating the generation rate of the characteristic gas; the concentration of the characteristic gas dissolved in the oil is introduced into various fault diagnosis methods based on analysis of the gas dissolved in the oil according to different decision-making means to evaluate and predict the state of the transformer; and fusing the discharge fault judgment result or the overheating fault judgment result with the concentration ratio of carbon monoxide to carbon dioxide in the oil sample, judging whether an insulation system involved in the transformer state is a pure oil insulation system or an oil paper insulation system, and completing fault classification of the transformer operation state. According to the invention, the operation state of the transformer is accurately predicted.
Owner:WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +4

Method for preparing carbon monoxide through reverse water-gas shift

The invention relates to a method for preparing carbon monoxide by reverse water gas shift, which comprises the following steps: under the catalytic action of a supported catalyst, carrying out reverse water gas shift reaction, carrying out pressure swing adsorption treatment on mixed gas generated in the reaction process, and desorbing to obtain carbon monoxide. By coupling the reverse water gas shift reaction and the pressure swing adsorption process and exerting the synergistic effect of the reverse water gas shift reaction and the pressure swing adsorption process, efficient and rapid separation of carbon monoxide is realized, the reverse water gas shift reaction is promoted to be carried out in the forward direction, the reaction requirement of reverse water gas shift is reduced, the reverse water gas shift reaction is carried out under relatively mild conditions, and the reaction efficiency is improved. The long-period efficient conversion of carbon dioxide is realized, and the conversion rate of carbon dioxide and the selectivity of carbon monoxide are further improved.
Owner:STATE POWER INVESTMENT CORPORATION RESEARCH INSTITUTE +2

Method for preparing carbon monoxide normal-temperature oxidation catalyst based on electrolytic manganese residues and landfill leachate

The invention discloses a method for preparing a carbon monoxide normal-temperature oxidation catalyst based on electrolytic manganese residues and landfill leachate. The method comprises the following steps: soaking and purifying the electrolytic manganese residues with deionized water to obtain preliminarily purified electrolytic manganese residues; mixing aryl alcohol dehydrogenase, the preliminarily purified electrolytic manganese residues and the landfill leachate, and standing to obtain enzymolysis electrolytic manganese residue slurry; mixing fly ash, red mud and the enzymolysis electrolytic manganese slag slurry, uniformly stirring, drying and grinding to obtain a multi-component composite raw material; placing the multi-component composite raw material in low-temperature plasma equipment for irradiation to obtain a plasma activated composite material; and carrying out hydrothermal reaction on the plasma activated composite material to obtain a hydrothermal structure composite material, dipping the hydrothermal structure composite material in a solution containing cerium nitrate, drying, and roasting to obtain the carbon monoxide normal-temperature oxidation catalyst. The carbon monoxide normal-temperature oxidation catalyst with high activity and high moisture resistance is prepared by utilizing industrial wastes and landfill leachate enzymolysis derivative liquid.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Method for preparing methanol fuel cell anode catalyst by doping modified multi-walled carbon nanotube carrier

The invention discloses a method for preparing a methanol fuel cell anode catalyst by doping a modified multi-walled carbon nanotube carrier. The method comprises the following steps: 1) acidizing an unmodified multi-walled carbon nanotube; (2) preparing the cerium oxide doped modified multi-walled carbon nanotube; and 3) preparing the cerium oxide doped modified multi-walled carbon nanotube carrier loaded PtFe bimetallic alloy catalyst. According to the method disclosed by the invention, the MWCNTs are induced by doping CeO2 to generate more oxygen vacancy defects, so that anchoring of more active sites of the PtFe alloy is facilitated, and MOR is promoted to improve the activity of the catalyst; the stable Ce < 4 + > can deform the surface structure of Pt, so that the binding bond energy of COads and-OH is stronger, and an anti-poisoning effect is achieved; the introduced Fe element and Pt have metal electronegativity difference, so that the adsorption bond energy of formic acid, formaldehyde and carbon monoxide intermediates generated by gradual dehydrogenation of Pt and methanol can be weakened, and the anti-toxicity effect is achieved; and the PtFe alloy and the CeO2 / MWCNTs are in synergistic interaction, so that the stability of the catalyst can be enhanced.
Owner:CHINA AUTOMOTIVE IND INST (JIANGSU) NEW ENERGY TECH CO LTD

Arc furnace and carbon dioxide treatment method using arc furnace

To reduce carbon dioxide by treating the carbon dioxide in an arc furnace itself, and to provide a carbon dioxide treatment method using a carbon dioxide treatment technique in the arc furnace itself.SOLUTION: An arc furnace for melting metal is used, carbon dioxide-containing gas is introduced into the arc furnace, and the carbon dioxide-containing gas is brought into contact with an arc in the arc furnace to decompose carbon dioxide into oxygen and carbon monoxide. Carbon monoxide and oxygen after decomposition are recovered and reused by a recovery system, and undecomposed carbon dioxide is also recovered by the recovery system and introduced into the arc furnace again to be treated.SELECTED DRAWING: Figure 1
Owner:NIPPON STEEL CHEM & MATERIAL CO LTD

Flue gas treatment system and flue gas treatment process

The invention discloses a flue gas treatment system and a flue gas treatment process, and relates to the field of flue gas treatment.The flue gas treatment system comprises (a) a cooling and washing device (2) used for cooling and washing flue gas so as to dehumidify the flue gas, and (b) a flue gas treatment device (3) used for cooling and washing the flue gas, (b) the deoxidizing device (3) is used for deoxidizing the flue gas from the cooling and washing device (2); (c) a catalytic combustion subsystem (4) for combusting carbon monoxide in the flue gas from the deoxidizing device (3); and (d) a waste heat recovery subsystem (5) for recovering the heat of the flue gas from the catalytic combustion subsystem (4). According to the system, the heat of the flue gas can be fully recovered while the emission of pollution gas is reduced, and the comprehensive utilization of the chlorinated flue gas is realized.
Owner:HEBEI YUJIAN ENERGY SAVING TECH CO LTD +1

Compact accelerator extremely-high vacuum system and implementation method thereof

The invention discloses a compact accelerator extremely-high vacuum system and an implementation method thereof. The compact accelerator extremely-high vacuum system comprises a dipole iron vacuum chamber, a BUMP iron vacuum chamber, a BPM cavity, a vacuum pump chamber and a quadrupole iron vacuum chamber which are sequentially connected to form a beam main line. A plurality of non-evaporable getter sheets are arranged in the dipole iron vacuum chamber and the quadrupole iron vacuum chamber in an array manner and are used for extracting active gas in a beam main line to obtain extremely high vacuum; a vacuum measuring gauge tube, a sputtering ion pump, a molecular pump and a gate valve are installed on the vacuum pump chamber, the vacuum measuring gauge tube is used for measuring the vacuum degree in the beam main line, the sputtering ion pump is used for extracting argon and methane in the beam main line and conducting baking, and the molecular pump is used for rough extraction of the beam main line and exhaust in the baking process; the gate valve is used for separating the molecular pump from the beam main line. According to the invention, hydrogen, carbon monoxide and other active gases in the system can be extracted under the condition that a titanium sublimation pump cannot be installed due to insufficient space, so that extremely high vacuum can be obtained.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Preparation device and preparation method of low-oxygen superfine molybdenum powder

The invention relates to the technical field of superfine molybdenum powder preparation, in particular to a preparation device and method for low-oxygen superfine molybdenum powder. The specific preparation device comprises a sublimation bin, a reaction area and a gas-solid separation bin which are sequentially connected, the reaction zone comprises a preheating zone, a reduction zone and a conversion zone; a part of the hydrogen pipeline and a part of the carbon monoxide pipeline are arranged in the preheating area; one end of the hydrogen pipeline extends to the reduction area and is used for providing preheated hydrogen and carrying out gas-phase reduction reaction on the preheated hydrogen and the gas-phase MoO3 subjected to heat preservation; one end of the carbon monoxide pipeline extends to the conversion area and is used for providing preheated carbon monoxide and reacting with water vapor to complete primary water vapor conversion; meanwhile, partial carbon monoxide is subjected to a disproportionation reaction to generate micro carbon powder, and the micro carbon powder and water vapor are subjected to a water gas reaction to complete secondary water vapor conversion. The problem that the oxygen content of existing superfine molybdenum powder prepared through gas-phase molybdenum trioxide reduction is too high is solved.
Owner:XI AN JIAOTONG UNIV

Hydrogen and carbon monoxide composite gas monitoring system

The utility model discloses a hydrogen and carbon monoxide composite gas monitoring system, which belongs to the technical field of gas monitoring and comprises a power supply module, an MCU (Microprogrammed Control Unit) module, a hydrogen monitoring module, a carbon monoxide monitoring module, a temperature monitoring module and an interface module. According to the monitoring system provided by the utility model, the hydrogen detection module and the carbon monoxide detection module are integrated to realize two-in-one monitoring of the concentrations of hydrogen and carbon monoxide in the environment, so that the product volume is reduced, and the monitoring system is suitable for various installation places; meanwhile, faults such as the service life and falling of the sensor are monitored and output in real time, and the effectiveness of monitoring the concentration of hydrogen and carbon monoxide in the environment is further guaranteed; the high-quality industrial sensor is adopted, the advantages of high sensitivity, high environmental adaptability, alcohol resistance and the like are achieved on the premise that the cost advantage is guaranteed, and the accuracy and reliability of concentration data of hydrogen and carbon monoxide in the environment are fully guaranteed.
Owner:SICHUAN JIUYUAN INTELLIGENT FIRE EQUIP CO LTD

Multi-cavity assembly type electromechanical integrated air and smoke exhaust machine room for underground garage

ActiveCN223484411UDucting arrangementsMechanical apparatusCarbon monoxide detectorMechanical engineering
The utility model relates to the technical field of underground garage exhaust fans, and particularly discloses a multi-cavity assembly type electromechanical integrated air and smoke exhaust machine room for an underground garage, which comprises a body, an overhaul opening is arranged at the bottom of the body, one side of the overhaul opening is connected with an overhaul door, and one side of the body is provided with a carbon monoxide detector. An indicating lamp is arranged on one side of the body, a connecting frame is arranged at the top of the body, an air inlet is formed in one side of the body, an air inlet cavity is formed in one side of the interior of the body, a fan cavity is formed in the middle of the interior of the body, an air and smoke exhaust fan is arranged in the middle of the fan cavity, an air exhaust cavity is formed in one side of the interior of the body, and an electric cavity is formed in one side of the body. The two ends of the air and smoke exhaust fan are connected with the air inlet cavity and the air exhaust cavity.
Owner:SICHUAN FIRE RES INST OF MEM

Nb-TiO2 / WO3 junction powder material-based room-temperature MEMS carbon monoxide sensor and preparation method thereof

The invention discloses a room-temperature MEMS carbon monoxide sensor based on an Nb-TiO2 / WO3 heterojunction powder material and a preparation method of the room-temperature MEMS carbon monoxide sensor, and relates to the technical field of carbon monoxide gas detection. The preparation method comprises the following steps: S1, preparing an Nb-TiO2 / WO3 heterojunction powder material by a two-step hydrothermal method; s2, 0.5 g of the Nb-TiO2 / WO3 heterojunction powder material, the aluminum oxide dispersion liquid and glycerol are mixed and subjected to ball milling, and slurry needed by the MEMS carbon monoxide sensor is obtained; s3, dispensing the slurry onto an MEMS gas sensor substrate with an electrode; according to the room-temperature MEMS carbon monoxide sensor provided by the invention, the sensitivity and selectivity of TiO2 to carbon monoxide can be improved through Nb doping and WO3 modification, the combination of the Nb-doped and WO3-modified semiconductor gas-sensitive material and the MEMS device can utilize the characteristics of miniaturization, easy integration, low power consumption, good stability and the like of the MEMS device, and the gas-sensitive gas-sensitive material can be used as a gas-sensitive gas-sensitive material for the room-temperature MEMS carbon monoxide sensor. The response and working consistency of the TiO2 gas-sensitive material to CO at room temperature is greatly improved, and the method has important practical application value for further promoting the development of semiconductor gas-sensitive devices.
Owner:HUBEI UNIV

A method for treating hazardous waste using a coal-based short-process system

A method for treating hazardous waste using a coal-based short-process system belongs to the field of hazardous waste treatment technology. The method of the present invention first performs deep reduction on the material, then uses a coal-based lance to generate heat in a molten bath to heat the material to a molten state, and then uses electrodes to heat the melt to separate the slag and matte, resulting in qualified matte. The molten bath produces high-temperature flue gas rich in carbon monoxide, which is fully combusted in a rotary kiln. When producing alloys, ore and coal are heated and deep reduction is performed. No reducing agent is required to produce matte, and sufficient sulfide allows the ore to be sulfided in the rotary kiln. The rotary kiln and molten bath furnace adopt an integrated configuration to reduce heat loss. Coal powder is directly delivered to the working surface, effectively avoiding the ineffective consumption of carbonaceous reducing agents and further enhancing the reduction effect. The method of the present invention has the characteristics of a short process, simple operation, easy control, strong raw material adaptability, high production efficiency, low production cost, low equipment investment, low energy consumption, high copper recovery rate, and environmental friendliness.
Owner:扬州一川镍业有限公司

Panoramic scanning coal fire detection and disaster early-warning, prevention and control apparatus for mining area

A panoramic scanning coal fire detection and disaster early-warning, prevention and control apparatus for a mining area, the apparatus comprising a detection apparatus, a laser scanning apparatus, a satellite remote-sensing monitoring apparatus, a data processing and analysis system, and an early-warning, prevention and control apparatus. High-precision thermistor temperature sensors (1) are arranged inside, on the surface and in surrounding areas of coal piles, such that subtle changes in the temperature of the coal piles can be accurately captured, and early-stage potential coal fire hazards can be effectively detected; gas sensors (2) installed at vents of a mining area can simultaneously measure the concentrations of gases such as carbon monoxide, carbon dioxide, methane and sulfur dioxide, so as to promptly identify anomalies in gas composition that are caused by coal fire combustion; an infrared thermal imager (3), which is located at a high position to acquire a panoramic view of the mining area, can clearly display high-temperature regions; and cameras (4) provide high-definition, wide-angle and low-illumination visual monitoring, and various sensors comprehensively collect data from different dimensions, thereby greatly improving the accuracy and comprehensiveness of monitoring.
Owner:SHAANXI ENERGY INST

Fire grate, burner and water heater

The invention discloses a fire grate, a combustor and a water heater, and relates to the technical field of water heaters, the fire grate comprises a fire grate body, the fire grate body is provided with a mixing cavity, a first air inlet flow channel and a second air inlet flow channel, the mixing cavity is provided with an air outlet, and the air inlet end of the first air inlet flow channel is provided with an injection opening used for introducing air and fuel gas; the exhaust end of the first air inlet flow channel is communicated with a mixing cavity, the air inlet end of the second air inlet flow channel is provided with an air inlet used for introducing air, the exhaust end of the second air inlet flow channel is communicated with the first air inlet flow channel, and the second air inlet flow channel is used for jetting flow to the first air inlet flow channel. A jet flow angle is formed between the jet flow direction of the second gas inlet flow channel and the gas conveying direction of the first gas inlet flow channel, and the jet flow angle is larger than 45 degrees and not larger than 70 degrees. And the combustion head part is arranged at the air outlet, and the combustion head part is provided with a fire hole communicated with the mixing cavity. According to the technical scheme provided by the invention, emission of carbon monoxide and nitrogen oxide can be reduced.
Owner:FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO LTD

Synthesis gas preparation method based on double-circulation gasifier

The invention provides a synthesis gas preparation method based on a double-circulation gasifier. The synthesis gas preparation method based on the double-circulation gasification furnace comprises the following steps: S1, feeding a biomass raw material and a gasification agent into the double-circulation gasification furnace for gasification; s2, performing primary separation on the synthesis gas generated by gasification, returning a solid material generated by the primary separation to the double-circulation gasification furnace, and performing secondary separation on the synthesis gas after the primary separation; and S3, returning the solid material generated by the second-stage separation to the double-circulation gasification furnace. According to the preparation method of the synthesis gas, the carbon conversion rate and the gasification efficiency can be effectively improved, the total concentration of carbon monoxide and hydrogen in the synthesis gas is greater than 65%, and the quality of the biomass gasification synthesis gas is greatly improved.
Owner:CHINA HUADIAN ENG CO LTD +1

Hydrogen or ammonia process and plant

A process and a plant for the production of hydrogen or for the synthesis of ammonia, said process comprising the following steps: (a) performing a reforming process (101) of a hydrocarbon feedstock (1) to generate a raw syngas (2), said reforming process comprising at least an autothermal reforming step (104) in presence of oxygen-enriched air or pure oxygen (3) produced by an air separation unit (ASU; 103); (b) subjecting said raw syngas (2) to a post-treatment (102) providing hydrogen (H2; 4), a CO2-enriched stream (5), and a residual gas (6); said post-treatment comprising at least a water gas shift conversion step (105) of said raw syngas into a shifted syngas (7), a pressure swing absorption step (106), and a cryogenic separation step (107); wherein said pressure swing absorption step produces said hydrogen and a first tail gas (8) comprising carbon monoxide (CO), carbon dioxide (CO2), residual hydrogen (H2) and unreacted hydrocarbon feedstock from the shifted syngas (7), and said cryogenic separation step separates the CO2-enriched stream and a second tail gas (9) from said first tail gas; said post-treatment (102) comprising a further separation step (120) of a CO2-containing stream (11) and of the residual gas (6) from said second tail gas; (c) recycling said residual gas (6) as feed to said reforming process and / or as fuel to one or more fired heater(s) (10) of said process; (d) optionally feeding a portion (4.8) of said hydrogen (4) obtained in step (b) as fuel to one or more fired heater(s) of said process; (e) optionally an ammonia synthesis step (110) wherein said hydrogen (4) and a nitrogen (N2)-containing stream (12) produced by said ASU (103) are reacted in a given stoichiometric ratio and in ammonia (NH3) synthesis conditions to obtain an ammonia-containing product (13).
Owner:CASALE SA

Chemical plant discharge filtering device with monitoring function

The invention relates to the technical field of chemical plant smoke filtering, in particular to a chemical plant discharge filtering device with a monitoring function, which comprises a barrel, a gas inlet pipe, a gas outlet pipe and the like, the barrel is communicated with the gas inlet pipe, and the top of the barrel is communicated with the gas outlet pipe. Indexes of pollutants such as sulfur dioxide, nitric oxide, carbon monoxide and carbon dioxide in flue gas can be detected through the flue gas sensor, when the flue gas sensor detects that the pollutants in the flue gas exceed the standard, the controller can control an electric guide rail to work, the electric guide rail drives a first push plate to move forwards, and a first sealing plate can also move forwards; the first sealing plate seals the exhaust pipe, real-time response can be achieved after the filter element is aged and breaks down, the filter element is replaced without shutdown under the condition that it is ensured that smoke does not leak, smoke which is not completely purified is prevented from being exhausted out, and therefore pollution to the environment can be avoided.
Owner:GANNAN UNIV OF SCI & TECH

Methanol cracking hydrogen production process and system

The invention relates to the technical field of methanol cracking hydrogen production, in particular to a process and a system for methanol cracking hydrogen production. Raw material methanol liquid is conveyed to a heat exchanger from a methanol storage tank through a metering pump and is heated and preheated through heat exchange of the heat exchanger, and the preheated raw material methanol liquid is conveyed into a methanol vaporizer to be vaporized into methanol steam; methanol steam enters a reactor and is catalyzed by a catalyst, a cracking reaction is carried out, high-temperature converted gas of hydrogen and carbon monoxide is generated, the high-temperature converted gas is conveyed to a product end after being subjected to heat exchange and cooling by a heat exchanger, the high-temperature converted gas is used as a heat source to exchange heat with fed methanol, and the converted gas is cooled while the methanol is preheated, so that energy complementation is realized; and the process ensures that methanol is fully vaporized, the temperature of the reactor is controlled at the optimal temperature for direct methanol cracking, and the direct methanol cracking reaction is sufficient and less in side reaction under the catalysis of a copper-based catalyst with high activity and good selectivity.
Owner:LUAN AIQUER HYDROGEN ENERGY TECHNOLOGY CO LTD

Processes for the production of carbon monoxide and processes for the production of syngas

A process for the production of carbon monoxide is described. The process involves the electrochemical desorption of carbon dioxide and oxygen from a solution containing a metal bicarbonate and the formation of carbon monoxide from the carbon dioxide. The carbon monoxide produced can be used in a process for the formation of syngas.
Owner:GREENLYTE CARBON TECH GMBH

Carbon monoxide impurity removal device for methanol-to-hydrogen

The invention relates to a carbon monoxide impurity removal device for methanol-to-hydrogen. Comprising an adsorption tower, the bottom and the top of one side of the adsorption tower communicate with an air inlet pipe and an air outlet pipe correspondingly, a mounting box is arranged at the bottom of an inner cavity of the adsorption tower, stepped holes are evenly formed in the mounting box, mounting cylinders are arranged in the stepped holes, an elastic assembly is arranged on the mounting box, and a driving assembly is arranged on the side wall of the adsorption tower. The driving assembly can drive the mounting box to slide up and down; the motor drives the straight gear to rotate so as to drive the gear ring and the spherical convex block to rotate, so that the mounting box vibrates up and down under the cooperation of the first spring and the second spring, the particle gaps of the activated aluminum oxide are continuously changed, the breathing effect is formed, the contact time of gas and the activated aluminum oxide is prolonged, and the dehydration rate is increased.
Owner:FUJIAN ZHONGRUNDA NEW ENERGY INFORMATION TECHNOLOGY CO LTD