15results about How to "Improve gasification efficiency" patented technology

The application relates to a biomass gasification device and relates to the technical field of biomass gasification, which comprises a gasification hearth, a fluidized bed is arranged in the gasification hearth, a bubbling bed is arranged in the gasification hearth, a biomass gasification area is arranged between the bubbling bed and the fluidized bed, and the biomass gasification area is used for making biomass stack combustion; the bubbling bed is located at the upper end of the biomass gasification area, a feeding device is arranged on the gasification hearth, an air inlet pipe is arranged on the gasification hearth, the air inlet pipe is used for blowing air into the fluidized bed, the air inlet pipe is used for making fuel in the biomass gasification area tumble, the air inlet pipe is used for blowing the fuel which is not fully combusted on the fluidized bed to the bubbling bed, a cyclone separator is arranged on the upper portion of the gasification hearth, the cyclone separator outputs relatively clean combustible gas after carrying out gas-solid separation on dust-containing combustible gas, the cyclone separator is used for inputting the fuel which is not fully combusted into the bubbling bed, and an ignition device is arranged on the bubbling bed and the fluidized bed. The application has the effect of fully gasifying biomass fuel.

The present application relates to solid waste treatment technical field, provide a kind of preparation syngas method and device using organic dangerous waste and biomass.The present application uses organic dangerous waste and biomass as raw material, preparation syngas by self-heating type gas flow bed.The present application will be organic dangerous waste slurry and biomass-based powder respectively feed, can realize the feed adjustment of arbitrary ratio, organic dangerous waste processing capacity, gasification efficiency is high, carbon emission is low;While this feeding mode can realize the independent atomization of organic dangerous waste slurry and biomass-based powder, also has the coupling effect of reaction, can improve gasification efficiency and the content of effective component in syngas.Summarized above, the present application uses organic dangerous waste and biomass to prepare syngas, can realize the efficient treatment and resource utilization of organic dangerous waste and biomass simultaneously, reduce fossil energy consumption, while carbon emission is less, environmental pollution is small, the obtained syngas can be used to prepare a variety of high value-added products, with remarkable environmental and economic benefits, wide application prospect.

This utility model discloses a control device for effectively reacting with industrial gases, relating to the field of sand casting technology, and solving the problem of the inability to continuously supply triethylamine gas in existing systems. It includes a storage tank, an electrical control cabinet, and heaters. The outlet pipe of the storage tank is connected to a pump body, and the output end of the pump body is connected to two inlet pipes via a three-way connector. Each inlet pipe is equipped with a check valve and a flow meter sequentially along the liquid flow direction. There are two heaters, each including a heating chamber containing multiple longitudinally arranged heat-conducting pipes. Each heat-conducting pipe contains a heating rod, and a spiral tube is wound around the outside of the heat-conducting pipes. One end of the spiral tube corresponding to each heater extends to the bottom of the heating chamber and connects to the inlet pipe. This utility model's control device can achieve continuous output of triethylamine gas, effectively improving production efficiency.

The warmer with the heat conduction structure comprises a gas cylinder, an ignition container and a fire grate, the gas cylinder is used for storing combustible gas, the ignition container is communicated with a gas cylinder gas path and used for igniting the combustible gas in the gas cylinder, a radiation panel is arranged on the side, away from the gas cylinder, of the fire grate, and the fire grate is arranged at the tail end of the ignition container and the tail end of the gas cylinder gas path. A heat conduction piece is arranged between the gas cylinder and the fire grate, and a heat conduction path from the fire grate to the gas cylinder is formed through the heat conduction piece. The gas cylinder has the effects of improving the gasification efficiency of liquefied gas in the gas cylinder, ensuring the combustion stability and the heating effect and saving energy.

The application discloses a device and a control method for automatic pressurization by recycling back liquid, relates to the field of LNG and energy recovery, and aims at solving the problems of high cost, high energy consumption and incapability of filling during pressurization of the existing pressurization technology. The liquid inlet of the pressurization vaporizer is connected to the back liquid pipeline of the LNG liquid filling machine and the front end liquid leading pipeline of the LNG low-temperature submerged liquid pump respectively, the temperature transmitter is used for monitoring the temperature of the gas outlet of the pressurization vaporizer, and it is selected whether the recycling back liquid is directly returned to the storage tank or is returned to the storage tank after being vaporized by the pressurization vaporizer. When the filling is continuously performed, the LNG low-temperature submerged liquid pump is used for leading the liquid to the front end of the pressurization vaporizer to be vaporized, so that the storage tank is pressurized. The application does not affect the filling operation during pressurization, and has the characteristics of low power consumption, high efficiency and low cost.

This invention discloses a long-distance pipeline coal slurry preparation system and method for gasifying coal slurry, comprising a slurry storage tank connected to the inlet of a first centrifugal pump, the outlet of the first centrifugal pump connected to the inlet of a raw coal slurry buffer tank, the raw coal slurry buffer tank connected to the inlet of a second centrifugal pump, the outlet of the second centrifugal pump connected to the inlet of a feed filter buffer tank, the feed filter buffer tank connected to a screen settling centrifuge, the centrifuged coal generated by the screen settling centrifuge falling onto a centrifugal coal scraper conveyor, the centrifugal coal scraper conveyor connected to a centrifugal coal storage yard and a centrifugal coal belt scale, the centrifugal coal belt scale connected to the inlet of a dewatered coarse coal kneader, and the dewatered coarse coal kneader connected to a low-pressure coal slurry tank. The system of this invention can simultaneously achieve efficient recovery of both coarse and fine coal slime, producing dewatered coal with low moisture content, while also concentrating and settling coal slime wastewater, reducing the load on subsequent coal slime wastewater treatment plants.

The biomass gasification and waste incineration coupled combustion system relates to the field of biomass waste gasification disposal, and the first combustion chamber, the throat area and the second combustion chamber of the waste incineration device are sequentially arranged from bottom to top and are communicated, the upper end of the second combustion chamber is provided with a flue gas outlet capable of supplying flue gas to a chimney, the first burner unit is opposite to the first combustion chamber, and the second burner unit is opposite to the throat area; the flue gas recirculation system has a circulating inlet communicated with the flue gas outlet, a first circulating outlet and a second circulating outlet communicated with the first combustion chamber; the reaction cavity and the gasification gas outlet of the biomass gasification device are communicated, the reaction cavity comprises a redox area, the gasification gas outlet is communicated with the fuel inlet of the first burner unit and the fuel inlet of the second burner unit, and the flue gas inlet pipe is communicated with the redox area and the second circulating outlet at both ends; the biomass gasification and waste incineration are deeply coupled and complementarily utilized, the biomass gasification efficiency is improved, the nitrogen oxide emission is reduced, and the cost is reduced.

The utility model belongs to the technical field of biomass gasification, and discloses a novel clean fuel gas biomass fixed bed gasification furnace which comprises an outer reaction furnace and an inner reaction furnace, the inner reaction furnace is coaxially arranged in the outer reaction furnace, the bottom of the inner reaction furnace and the inner bottom of the outer reaction furnace are arranged at intervals, and a fuel gas generation area is arranged in the inner reaction furnace. The top of the inner reaction furnace extends to the outside of the outer reaction furnace, a furnace bar is fixed in the inner reaction furnace, the outer peripheral wall of the inner reaction furnace and the inner peripheral wall of the outer reaction furnace are spaced to form a gas purification area, and a gas outlet is formed in the side wall of the top end of the outer reaction furnace; a feeding mechanism is arranged above the inner reaction furnace; a bottom opening of the gas purification area is provided with a filtering mechanism; a cooling mechanism is fixed on the outer side wall, corresponding to the fuel gas purification area, of the inner reaction furnace; an ash removal mechanism is mounted at the bottom in the outer reaction furnace, and an ash inlet end of the ash removal mechanism axially corresponds to an opening in the bottom end of the inner reaction furnace. According to the reaction furnace, the temperature is kept stable by absorbing reaction heat, the gasification efficiency is improved, and the purification effect of fuel gas is improved.

A coal chemical gasification process for reducing the residual carbon content of fine slag includes: a gasifier vertically designed from top to bottom as a combustion chamber, a Boudouar reaction chamber, a downcomer, and a quench chamber; molten slag drips directly from the combustion chamber into the quench chamber via the downcomer, without passing through the Boudouar reaction chamber; high-temperature syngas from the combustion chamber directly enters the Boudouar reaction chamber from its lower side wall outlet; a portion of the CO2 removed by the purification unit is preheated and pressurized before being injected into the Boudouar reaction chamber; during the process of the high-temperature syngas entering the Boudouar reaction chamber, the residual carbon in the high-temperature syngas is fully stirred and comes into full contact with CO2, resulting in a Boudouar reaction; after entering the Boudouar reaction chamber, it undergoes another Boudouar reaction with the injected CO2; the high-temperature syngas after the reaction in the Boudouar reaction chamber enters the downcomer from the bottom outlet, and then enters the quench chamber for rapid cooling and dust removal. This process significantly improves carbon conversion rate and effective gas production rate without affecting the stability of liquid slag discharge from the gasifier, and reduces CO2 emissions. It has the advantages of low energy consumption, high gasification efficiency, good system stability, significant environmental benefits, and minimal investment increase.

The application provides a gasifier and a gasification method, relates to the technical field of liquefied gas gasification, and comprises an immersed combustion type gasifier, wherein the immersed combustion type gasifier comprises a tank body, an immersed burner and a tube bundle arranged in the tank body, the gas outlet end of the immersed burner is below the tube bundle, the gas outlet end is provided with a plurality of gas outlet holes, the two ends of the tube bundle extend out of the tank body and form a liquefied gas inlet and a gas outlet respectively, the top of the tank body is provided with a first top plate, and the first top plate is a transparent glass plate; a first condenser lens is arranged above the first top plate and can heat water bath liquid in the interior of the tank body by using solar energy; and the problems of high energy consumption, high cost and low efficiency caused by the huge consumption of natural gas of the immersed combustion type gasifier in the prior art are solved.

The present application relates to the technical field of coal underground in-situ gasification, and particularly relates to a high-gas coal seam coal underground in-situ gasification safety ignition method. The present application accurately divides the ignition area based on the length, width and coal seam thickness of the gasification channel; meanwhile, the present application adopts a double-monitoring-unit setting mode of the ignition area and the gas transmission direction to realize blind area-free monitoring of the gasification channel, which not only meets the partition monitoring requirement, but also guarantees the continuity and accuracy of parameter collection, and provides reliable data support for subsequent gasification channel pressure maintenance, purging and ignition point selection. The present application adopts gas introduction for pressure maintenance treatment in the gasification channel, so that the gas adsorbed in the coal seam fissures can be separated out and mixed with air, and the distribution of the gas in the whole channel and the surrounding fissure network is more uniform; meanwhile, the gasification channel is purged after pressure maintenance, so that the gas in the gasification channel can be quickly discharged, and the efficiency of gas discharge is increased.

This invention discloses an operation control method for a CO₂ circulating catalytic biomass gasification polygeneration unit, relating to the field of distributed biomass energy utilization and process control technology. The method includes the following steps: inerting and purging are performed based on the gas supply and atmosphere control unit to determine the unit's operating boundaries; during the pyrolysis stage, active sites are constructed in situ on the carbon through alkali metal Na / K dosage control; during the gasification stage, recycled CO₂ and / or purified flue gas are introduced and the CO₂ / steam ratio is controlled to drive the reaction unit to stably produce gas and generate biochar as a byproduct; tar and dust are controlled through staged condensation-filtration-switchable catalytic cracking; a micro gas chromatography calibration dataset is established and sensor array data is fused; soft measurement and closed-loop control are used to adjust the feed rate, bed temperature, and recycled CO₂ ratio; and emergency shutdown is executed when safety interlock conditions such as backfire, CO leakage, and pressure difference abnormalities are triggered. This method solves the problems of large calorific value fluctuations, easy tar blockage, and high monitoring and control costs in distributed biomass gasification, achieving improved efficiency and safe and stable operation.

The application discloses a preparation method of biomass Fischer-Tropsch synthesis diesel oil, which comprises the following steps: converting cellulose and lignin in biomass into biomass synthesis injection powder fuel through superheated steam pressure reduction hydrothermal carbonization of wood fiber biomass raw materials; producing biomass synthesis gas through pressurized entrained flow bed high-temperature gasification of the biomass synthesis injection powder fuel, wherein the gasification agent is oxygen and water vapor, and the biomass synthesis gas is adjusted to H / C=2-3:1; and producing biomass Fischer-Tropsch synthesis diesel oil through a Fischer-Tropsch synthesis process of the biomass synthesis gas. The biomass Fischer-Tropsch synthesis diesel oil can be produced in a large scale and continuously by using the biomass synthesis injection powder fuel obtained through superheated steam pressure reduction hydrothermal carbonization of biomass.

The present application relates to a kind of gasification furnace, it relates to oil residue processing device technical field.The gasification furnace of the present application includes furnace body, main nozzle and multiple auxiliary nozzles;Furnace body is equipped with reference variable cylinder S, the cylinder S is coaxially arranged with the furnace body, the radius of the furnace body is greater than the radius of the cylinder S;Main nozzle is placed in the top of the furnace body, and the main nozzle is used to spray combustion-supporting gas and fuel;Multiple auxiliary nozzles are arranged around the circumference of the furnace body, and the auxiliary nozzle is used to spray to be combusted;Wherein, in the plane perpendicular to the height direction of the furnace body, the projection of the axis of the auxiliary nozzle is tangent to the projection of the cylinder S.The technical scheme disclosed in the present application can solve the problem of low gasification efficiency of the existing gasification furnace, thereby reducing the difficulty of residue processing, shortening the processing cycle.

The utility model relates to the technical field of biomass gasification furnaces, and discloses a biomass gasification furnace air inlet device convenient for air control, which comprises a furnace body, the top of the furnace body is fixedly connected with a feed pipe, the top of the right side of the furnace body is fixedly connected with an exhaust pipe, and the bottom side of the furnace body is fixedly connected with an air inlet pipe. A plurality of air supply pipes are fixedly connected to the top of the air inlet pipe, a motor is installed on the outer wall of the air inlet pipe through a fixing support and connected with a baffle piece through a transmission assembly, an annular pipe is arranged on the outer wall of the bottom of the furnace body, a hydraulic oil tank is fixedly connected to the outer wall of the top of the annular pipe, and an air cylinder is arranged on the top of the hydraulic oil tank. The inner wall of the annular pipe is connected with the furnace body through a plurality of adjusting assemblies. According to the utility model, the device adopts the design of cooperative adjustment of the main and auxiliary air paths, so that uniform air supply can be realized, reasonable airflow distribution can be ensured, the air volume can be flexibly regulated and controlled, meanwhile, the air volume can be automatically adapted and regulated according to the characteristics of common incinerated materials, and the operation convenience and the gasification efficiency are improved.