434results about "Gas dust removal" patented technology

The invention discloses a cyclone separation and moving particle bed coupled pulverized coal pyrolysis oil gas high-temperature dust removal system, and belongs to the technical field of coal clean utilization. The system comprises a cyclone separator, a fine filtration unit, a filter material cyclic regeneration unit and an intelligent control unit, the fine filtration unit comprises a particle bed, a particle bin is arranged at the top end of the particle bed, and a composite filter material layer is arranged on the particle bed; a dust-containing high-temperature oil gas pipeline and a pretreatment high-temperature oil gas pipeline are arranged at the top end of the cyclone separator, dust-containing high-temperature oil gas is introduced into the cyclone separator through the dust-containing high-temperature oil gas pipeline to be pretreated, and the pretreated dust-containing high-temperature oil gas is introduced into the particle bed through the pretreatment high-temperature oil gas pipeline to be finely filtered; and a coke breeze discharge pipe is arranged at the bottom of the cyclone separator. The invention is used for solving the technical problem of low gas-solid separation efficiency at high temperature caused by the adoption of a single filter material in the existing pulverized coal dust removal system.

The invention discloses a system and a method for producing sponge iron by coupling a gasification furnace and a gas-based shaft furnace. The system comprises a coal pretreatment device for pretreating received raw material coal; the gasification furnace receives the raw material coal treated by the coal pretreatment device through a conveying device, and synthesis gas is obtained through reaction; the mixer receives furnace top gas generated by the gas-based shaft furnace, mixes the furnace top gas with synthesis gas to obtain mixed gas, and outputs the mixed gas to the dust remover; the high-temperature desulfurization device is used for carrying out desulfurization treatment on the dedusted mixed gas by using a high-temperature desulfurization agent, and the high-temperature decarbonization device is used for carrying out decarbonization treatment on the desulfurized mixed gas and outputting the decarbonized mixed gas to the gas-based shaft furnace; iron ore and / or oxidized pellets are / is arranged in the gas-based shaft furnace, the decarbonized mixed gas is received, and sponge iron is generated through reaction. According to the method, the synthesis gas is cooled by using the furnace top gas, additional cooling equipment is not needed, the cost is reduced, the energy utilization rate is increased, and cleaner and more efficient sponge iron production is realized.

The utility model discloses a purification treatment device for coke oven gas. The device comprises a pre-purification device, a compression device and a hydrodesulfurization device, and the hydrodesulfurization device is arranged at the downstream of the pre-purification device and the compression device; the pre-purification device comprises a first pretreatment tower and an adsorption tower group, the adsorption tower group is arranged at the downstream of the first pretreatment tower, the first pretreatment tower is used for removing H2S in the coke oven gas, and the adsorption tower group is used for removing tar, dust, naphthalene and part of benzene in the coke oven gas; the compression device is used for pressurizing coke oven gas; the hydrodesulfurization device comprises a hydrogenation reaction assembly and desulfurization equipment, the desulfurization equipment is arranged at the downstream of the hydrogenation reaction assembly, the hydrogenation reaction assembly is used for converting organic sulfur in the coke oven gas into inorganic sulfur, and the desulfurization equipment is used for removing the inorganic sulfur in the coke oven gas treated by the hydrogenation reaction assembly. The device can be used for effectively removing impurities in coke oven gas, so that the coke oven gas meets the quality requirement on feed gas when DRI is produced by gas-based shaft furnace ironmaking.

The invention discloses a high-efficiency coking furnace, and relates to the technical field of coking equipment, the high-efficiency coking furnace comprises a furnace body assembly, the furnace body assembly comprises a lower furnace body and an upper furnace body, the outer wall of the lower furnace body and the outer wall of the upper furnace body are sleeved with a heat insulation shell, the bottom of the heat insulation shell is fixedly connected with a supporting base, and a rotating assembly is installed at the center of the top surface of the supporting base; a heat energy recovery assembly is installed on the top face of the upper furnace body, the heat energy recovery assembly is connected with a purification assembly, and two temperature sensing assemblies are installed in the heat energy recovery assembly. The heat exchange structure can fully utilize heat energy of high-temperature flue gas in the carbonization chamber to preheat low-temperature clean coal gas and cold air, a gas heat absorption path is prolonged through a labyrinth structure, the temperature of gas entering the gas mixing ring is greatly increased, and the mixed combustion heat value of the clean coal gas and hot air after heat exchange is remarkably higher than that of normal-temperature mixed gas; therefore, combustion efficiency is improved, fuel consumption is reduced, and sufficient and stable heat sources in the coking process are ensured.

The invention provides a supergravity dust removal device integrating rotary atomization and filling. The supergravity dust removal device comprises a shell, a first motor, a demisting module, a filling layer, a liquid distributor and a second motor, the shell is provided with a gas outlet, a liquid inlet, a gas inlet and a liquid outlet, and the gas inlet is used for introducing coal gas; the filler layer is arranged in the shell, is connected with the output end of the second motor and is used for improving the gas-liquid mixing effect and the dust trapping efficiency in a rotating state; the liquid distributor is communicated with the liquid inlet, a plurality of atomizing nozzles are arranged on the liquid distributor, and liquid is atomized and then sprayed to the filler layer; the demisting module is arranged above the liquid distributor, the demisting module and the liquid distributor are jointly connected with an output shaft of the first motor, and the demisting module and the liquid distributor are used for separating liquid drops and particles in the gas in a rotating state. According to the dust removal device, inertial sedimentation of coarse particles and supergravity separation of fine particles can be integrated, and graded dust removal and liquid removal are achieved.

The utility model relates to a raw gas source upgrading system for an internal heating type vertical furnace. The raw gas source upgrading system comprises a dry distillation furnace, a carbon dioxide removal device and a pure oxygen preparation device, the device further comprises a first multi-stage mixer, a second multi-stage mixer, a gas sampling analysis tube and a gas component detector. Pure oxygen is adopted as a combustion improver, so that the content of nitrogen in the raw gas is greatly reduced, and the application scene of coal gasification production and deep processing of the internal heating type vertical furnace is expanded; the components of combustion-supporting gas, combustible gas and inert gas in mixed gas in a lattice wall of the dry distillation furnace are controlled by adopting double-circulation control of carbon dioxide and recirculated gas, the combustion intensity and the uniformity degree are strictly controlled under the condition that dry distillation heat supply is met, and scabbing and burning loss of a dry distillation furnace body are avoided.

The invention discloses biomass pyrolysis waste heat utilization composite preparation reforming hydrogen production equipment and method.The biomass pyrolysis waste heat utilization composite preparation reforming hydrogen production equipment comprises a pyrolysis carbonization furnace and a reforming hydrogen production furnace which are connected up and down, a pyrolysis reaction chamber is arranged in the pyrolysis carbonization furnace, and a reforming reaction chamber is arranged in the reforming hydrogen production furnace; a pyrolysis heating cavity is formed between the outer wall of the pyrolysis reaction chamber and the inner wall of the pyrolysis carbonization furnace, a reforming heating cavity is formed between the outer wall of the reforming reaction chamber and the inner wall of the reforming hydrogen production furnace, and a heating resistance wire is arranged on the inner wall of the reforming hydrogen production furnace. According to the invention, a plurality of devices are not needed to transfer the catalyst, the operation steps are simplified, the experimental error in the transfer process is reduced, a heat source is provided by a single-section electric heating mode, and the energy consumption is reduced; and waste heat recycling can be achieved, the heat energy use efficiency is improved, and the pyrolysis hydrogen production efficiency is higher.

The present invention provides a method for hydrogen production from coke oven gas based on the electrochemical reduction of CO2 technology. The method includes gas pretreatment, multi-stage membrane separation, catalytic reaction, and electrocatalytic reduction. Particulates, tar, and moisture are removed through cyclone separation and activated carbon adsorption, and MDEA and zinc oxide desulfurization are combined to ensure gas purification; a multi-stage membrane separation technology is used to achieve the separation of high-purity hydrogen. Through high-temperature and low-temperature water gas shift and methane steam reforming reactions, CH4 and CO are efficiently converted to further increase the hydrogen production. The electrocatalytic reduction technology is innovatively adopted to convert CO2 into CO, H2, and HCOOH to achieve carbon resource recycling. The present invention has the characteristics of high efficiency, low consumption, and low carbon, and is applicable to the deep purification and resource utilization of coke oven gas.

The invention provides a low-rank coal pyrolysis system and a control method thereof. The low-rank coal pyrolysis system comprises a through-flow type rotary dryer, a pyrolysis furnace, a dust remover, a waste heat recovery device, a venturi tower and a purification recovery device, and a dried coal outlet of the through-flow type rotary dryer is connected with a product inlet of the pyrolysis furnace; a raw gas outlet of the pyrolyzing furnace is connected with a gas inlet of the venturi tower through the dust remover and the waste heat recovery device in sequence, a flue gas outlet of the pyrolyzing furnace is communicated with a flue gas recovery port of the cross-flow rotary dryer to recover flue gas to dry raw material coal, and a tower bottom outlet of the venturi tower is connected with the ammonia water purification and recovery device to recover coal tar; and a coal gas outlet of the venturi tower is communicated with the coal gas purification and recovery device. According to the low-rank coal pyrolysis system provided by the invention, on one hand, waste heat of raw gas can be recycled, and on the other hand, raw materials can be conveniently dried, so that the pyrolysis efficiency is improved.

The present invention relates to the technical field of aviation kerosene production, and particularly to a production method of aviation kerosene, which includes: gasifying and converting low-carbon raw materials to generate conversion gas; obtaining crude syngas through a water washing and dust removal process for the conversion gas; subjecting the crude syngas to acid gas removal treatment through a purification device to obtain purified gas containing carbon monoxide, hydrogen, and carbon dioxide; using clean energy in an electrolyzer to obtain hydrogen and oxygen, storing and compressing the hydrogen separately, and sending the oxygen to a gasification device for gasification reaction; generating Fischer-Tropsch synthesis feed gas by passing the compressed hydrogen and the purified gas through a Fischer-Tropsch reaction device; and generating aviation fuel, gasoline, and diesel by passing the Fischer-Tropsch synthesis feed gas through a green aviation fuel synthesis reactor, a secondary flash evaporator, and a distillation column. By using low-carbon raw materials as raw materials for bio-aviation kerosene, the present invention can reduce the dependence on fossil fuels and increase the production of bio-aviation kerosene, thereby enabling large-scale promotion.

The utility model belongs to the technical field of washing towers, and particularly relates to a glass fiber reinforced plastic antistatic washing tower which comprises a tower body, an air inlet pipe is fixedly connected to the outer wall of the tower body, a rotating cover is screwed to the top end of the air inlet pipe, and pollution gas drives the rotating cover to rotate through a guide plate by arranging the rotating cover and a stirring plate. A rotating cover rotates to drive a connecting shaft to synchronously rotate, polluted gas is filtered through a first filter screen, meanwhile, the connecting shaft rotates to drive a stirring plate to rotate through a stirring rod, the polluted gas in the tower body is stirred, the contact time of the polluted gas and a neutralization solution is greatly prolonged, then the polluted gas enters a neutralization filler, and then the neutralization solution enters the neutralization filler; the water pump works and sprays out from the nozzle through the spraying pipe to neutralize the pollution gas in the neutralization filler, meanwhile, impurities in the pollution gas flow into the collecting barrel through neutralization liquid, then the treated pollution gas is discharged from the exhaust pipe through the second filter screen, and full washing operation on the pollution gas is achieved.

An integrated gasification and power generation system includes a gasifier configured to receive biomass and generate syngas, wherein the gasifier is configured to operate at a pressure of approximately 100 bar to approximately 400 bar. The system further includes a recuperated Brayton thermodynamic power generation loop configured to receive the generated syngas and convert the generated syngas into a CO2 working fluid, wherein at least a portion of the CO2 working fluid from the power generation loop is reintroduced from the power generation loop to the gasifier.

Aspects of the invention relate to improved flexibility in being able to supply oxygen and hydrogen, for example from electrolysis, to a process having both gasification and methanation steps, and how that process operates in response to variations in the carbonaceous feedstock. Any offset between the ideal amount of hydrogen and the amount available from a particular source can be offset by adjusting one or more operations in the process, particularly those that ultimately affect the amount of CO and / or CO available downstream of the gasifier for conversion to methane in the RNG product stream. [Selected Figure] Figure 1

The invention discloses a pipeline transformation method for preventing a nozzle of a heat treatment furnace from being blocked, which comprises the following steps of: adding two sections of pipelines, namely a straight pipeline (2) and a bypass pipeline (3), on a gas pipeline (1) at the front end of a nozzle instrument of the heat treatment furnace; then, corrosion product filtering devices (4) are installed on the straight-through pipeline (2) and the bypass pipeline (3), under the normal condition, the straight-through pipeline (2) is opened, the bypass pipeline (3) is closed, coal gas is input from the straight-through pipeline (2), and powdery and blocky solid corrosion products are filtered through the corrosion product filtering devices (4); during maintenance, the straight-through pipeline (2) is closed, the bypass pipeline (3) is opened, coal gas is input from the bypass pipeline (3), powdery and blocky solid corrosion products are filtered through the corrosion product filtering equipment (4), and at the moment, the straight-through pipeline (2) is maintained. The device has the advantages of effectively preventing the nozzle of the steel mill heat treatment furnace from being blocked, realizing maintenance without shutdown, and improving the heating effect of the steel heat treatment furnace.

This utility model discloses a coke oven gas spray slag removal nozzle that is easy to maintain, comprising: a second water inlet pipe; an outer support plate, the outer support plate being disposed on the outside of the second water inlet pipe, a rotary joint being installed on the top of the outer support plate, and the top end of the second water inlet pipe being connected to the rotary joint. The beneficial effects of this utility model are: by setting an outer support plate, an inner threaded cylinder, and an outer threaded sleeve, rotation of the outer support plate, the inner threaded cylinder, and the second water inlet pipe is realized; the inner threaded cylinder is threaded on the outside of the outer threaded sleeve to prevent gas leakage; by setting an annular sealing groove and a sealing ring, the sealing ring at the top of the outer threaded sleeve and the annular sealing groove opened inside the inner threaded cylinder are matched, further improving the sealing effect between the outer threaded sleeve and the inner threaded cylinder and avoiding gas leakage.

The utility model discloses a device for improving the oil yield of shale oil, which comprises a plurality of sprayers arranged in a gas pipeline connected between a water seal tank and a venturi tower, and a hot water circulating pump with an inlet end connected with a heat exchange pool and an outlet end respectively connected with the sprayers and the water inlet end of the venturi tower through pipelines.

The utility model discloses a dust filtering device for coal bed gas transportation, include: the dust filtering device includes filter device casing, the filter device casing inside is provided with filter chamber, the filter chamber is vertically provided with chamber partition plate in, and the filter chamber is divided into the dust containing gas chamber of upper portion and the purification gas chamber of lower portion, the dust containing gas chamber top is provided with dust containing gas import, the purification gas chamber top is provided with purification gas export, a plurality of partition plate through -tubes are vertically passed through and are arranged to the chamber partition plate, the partition plate through -tube lower half segment is provided with the filter assembly of filterable magnetic impurity. The utility model's partition plate through -tube constructs directional airflow channel, and the dust containing airflow is forced to flow through the filter assembly segment, and simultaneously, the radial outer side arrangement's permanent magnetism adsorption body synchronous capture magnetic impurity, and the coal bed gas dust filtering efficiency is improved significantly, and the filter core inside and outside double skeleton support frame structure further strengthens the filter element pressure resistance stability under high pressure working condition.

The invention relates to the technical field of biomass treatment, in particular to a biomass gasification system and a biomass gasification method. The biomass gasification system comprises a gasification furnace which is provided with a furnace body, a biomass inlet communicated with the furnace body, a gasification agent inlet and a crude synthesis gas outlet; an inlet of the waste heat boiler is communicated with the crude synthesis gas outlet, and an outlet of the waste heat boiler is connected with a negative pressure device; an inlet of the dust remover is communicated with the negative pressure device, and an outlet of the dust remover is connected with a cooling device. The biomass and the gasifying agent are gasified and reacted in the gasifier to generate crude synthesis gas, the crude synthesis gas is discharged after being dedusted by the deduster and cooled by the cooling device in sequence under the negative pressure environment provided by the negative pressure device, and due to the arrangement of the negative pressure device, the atmospheric pressure in the system is always lower than the atmospheric pressure outside the system; therefore, the synthesis gas generated in the system cannot be leaked, but is discharged from a unified outlet after being treated, so that the normal operation of equipment is ensured, and the potential safety hazard is reduced.

The utility model relates to the technical field of methanol purification, and provides a coal-to-methanol synthesis gas purification device which comprises a catalytic device, a gas inlet is formed in the top of the catalytic device, and a gas outlet is formed in the bottom of the catalytic device; a gas distributor is installed at the position, close to the inner side of the catalytic device, of the bottom of the gas inlet, two partition plates are further arranged on the inner side of the catalytic device, a ring pipe is arranged at the position, arranged on the inner side of the catalytic device, between the two partition plates, and cooling pipes are arranged at the bottom end and the outer side of the ring pipe. A catalyst cavity is formed in the inner side, close to the outer side of the cooling pipe, of the catalytic device; the application of the demister further removes tiny liquid drops and vaporific impurities entrained in the gas, ensures the purity of the purified synthesis gas, and meets the strict requirements of high-end chemical production on the gas quality.

The application discloses a biomass combustible gas hydrogen separation device and separation method, relates to the technical field of separation, and comprises a first separation box and a gas supply pipe arranged at the left upper side of the first separation box. A washing liquid for loading washing water is arranged in the first separation box. The right end of the gas supply pipe is provided with a washing water inlet pipe extending into the first separation box. The lower end of the washing water inlet pipe extends below the liquid level in the first separation box. The first separation box is provided with a vertical impurity removal filter plate for filtering the washed gas. The application is designed according to the existing needs. The pyrolysis gas can be subjected to solid impurity removal treatment, so that only gas exists in the exhaust gas, the screening efficiency of the molecular sieve in the later stage is ensured, the residual solid in the washing liquid can be removed, the washing effect is ensured, the impurity removal filter plate can be subjected to scraping operation, the problem of exhaust gas blockage is avoided, the separation efficiency of hydrogen is further ensured, and the practicality is high.

The invention discloses a membrane tube filter. The membrane tube filter comprises a shell, a tube plate, a membrane tube filter assembly, an air inlet, an air outlet, an air pocket, a back flushing tube and a discharge port, the off-line regeneration method of the membrane tube filter comprises seven steps. The device has the advantages that in the off-line regeneration process, oxygen-containing high-temperature back-blowing gas is sprayed into the membrane tube from the back-blowing tube in a pressurizing manner, so that the combustion process and the back-blowing process can be simultaneously carried out from inside to outside, ash generated by combustion can be taken out from the membrane tube in time under the action of pressure, and the combustion efficiency is improved. Therefore, the membrane pipe is prevented from being blocked, the combustion rate is improved, the local temperature of the membrane pipe is prevented from being too high, and the service life of the membrane pipe is ensured; moreover, combustion and back flushing are carried out simultaneously, so that the regeneration process can be simplified, and the regeneration time is effectively shortened.

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

Disclosed herein are methods for reducing fouling caused by process water present within a water recycling loop of a pyrolysis plant. The process water includes water, a pygas, and in some cases pygas byproducts. Fouling is caused by phase separation and accumulation of materials from the process water on equipment surfaces. The method includes applying a total of about 5 ppm to 500 ppm of one or more antifouling polymers to the process water to form a treated process water. The one or more antifouling polymers are selected from the group consisting of copolymers of unsaturated fatty acids, primary diamines, and acrylic acid; copolymers of methacrylamidopropyl trimethylammonium chloride with acrylic acid and / or acrylamide; copolymers of ethylene glycol and propylene glycol; and blends of two or more thereof.

The utility model provides a washing tower tray and washing tower, the washing tower tray comprises a weir plate, an overflow plate and a current collecting plate group, the periphery of the weir plate comprises a matching side and an overflow side, the matching side is used for limiting and matching with the inner wall of a cavity where the washing tower tray is located, and the overflow side is spaced from the inner wall of the cavity where the washing tower tray is located. The area above the weir plate surrounded by the current collection plate group and the inner wall of the cavity where the washing tower tray is located is a current collection area, the weir plate corresponding to the current collection area is provided with a first pollution discharge hole, the overflow plate is arranged on the overflow side and extends in the horizontal direction, and the two ends of the overflow plate extend to the connecting position of the matching side and the overflow side respectively; an area above the weir plate surrounded by the overflow plate, the current collection plate group and the inner wall of the cavity where the washing tower tray is located is an overflow area, a second pollution discharge hole is formed in the bottom of the overflow plate, and the lower edge of the second pollution discharge hole is flush with the bottom wall of the overflow area. According to the technical scheme provided by the utility model, the problem that the tray of the washing tower is easy to block in the prior art can be solved.

The present invention provides a feed gas pressurization system and a control method therefor, belonging to the technical field of low-carbon blast furnace feed gas processing equipment. The system comprises a gas supply pipeline and a liquid supplementation pipeline; a pressurizer has an inlet and an outlet, the gas supply pipeline and the liquid replenishing pipeline each being in communication with the inlet of the pressurizer; a heat recovery device has a first heat exchange channel and a second heat exchange channel for mutual heat exchange; a gas-liquid separator has a mixture inlet and a gas outlet, the outlet of the pressurizer is communicated with an inlet of the first heat exchange channel, an outlet of the first heat exchange channel being in communication with the mixture inlet of the gas-liquid separator, and the gas outlet of the gas-liquid separator being in communication with an inlet of the second heat exchange channel. The present invention purifies feed gas, and reduces the probability of subsequent equipment being blocked or failing due to impurities in the feed gas. At the same time, the purified feed gas is used to cool a gas-liquid mixture, which is beneficial for gas-liquid separation of the gas-liquid mixture, and fully utilizes heat absorbed by the gas-liquid mixture, to improve energy utilization efficiency.

The invention discloses a reaction system for producing hydrogen through coal supercritical water gasification. The reaction system comprises a vertical tank body, a heat insulation lining, a gas collection chamber, a separator, a slag collection chamber, a coal water slurry distribution pipe and an inlet diffuser, the separator is arranged between the gas collection chamber and the slag collection chamber, an upper exhaust port of the separator is communicated with the gas collection chamber, and a lower slag discharge port of the separator is communicated with the slag collection chamber; an ash inclined pipe at the lower part of the slag collecting chamber extends out of the vertical tank body to form an ash outlet; the coal water slurry distribution pipe is an annular pipe, and coal water slurry distribution holes are formed in the coal water slurry distribution pipe; the inlet diffuser is mounted at the bottom head of the vertical tank body; the inlet end of the supercritical water inlet pipe extends out of the bottom head of the vertical tank body to form a supercritical water inlet; a coal water slurry inlet is formed in the coal water slurry distribution pipe; a gas outlet is formed in a top sealing head of the vertical tank body; the lower end of the gas outlet is communicated with the gas collecting chamber. According to the invention, coal is gasified in a supercritical water environment to generate hydrogen, so that clean utilization of coal is realized; uniform heat supply of supercritical water to gasification reaction can be realized, and high-efficiency gasification of coal under large treatment capacity is realized.

To realize a configuration capable of curbing an increase in a concentration of carbon monoxide contained in processed gas produced after exhaust gas produced when exhaust gas after combustion of thermal decomposition gas undergoes a process in a woody biomass gas combustion facility in which the thermal decomposition gas generated through thermal decomposition of woody biomass undergoes combustion.SOLUTION: A woody biomass gas combustion facility 1 comprises: a filter 23 which collects particles in thermal decomposition gas obtained from woody biomass; oxidation catalyst reaction device 16 which oxidizes carbon monoxide contained in exhaust gas produced when the thermal decomposition gas undergoes combustion with a gas engine 15; a particle removal mechanism 25 which performs particle removal operation; an oxidation gas supply device 40 which mixes the exhaust gas with oxidation gas; and a control device 30 which controls drive of the oxidation gas supply device 40 so as to mix the exhaust gas with the oxidation gas when the particle removal mechanism 25 performs the particle removal operation.SELECTED DRAWING: Figure 1

The invention relates to a gasification process system taking charcoal as a main material, and relates to the technical field of clean energy biomass. Comprising a gasification bin, a gasification furnace, a first-stage inertia separator, a moving bed cracking furnace, a carbon production bin, a second-stage cyclone separator and a return feeder, the gasification bin is communicated with one side of the bottom of the gasification furnace through a second-stage screw feeder arranged at the bottom of the gasification bin, and the first-stage inertia separator is communicated with one side of the top of the gasification furnace; the bottom of the first-stage inertia separator is communicated with the top of the moving bed cracking furnace, and the carbon production bin is communicated with the top of the moving bed cracking furnace through a third-stage screw feeder; one side of the secondary cyclone separator is communicated with the top of the primary inertia separator, the bottom of the secondary cyclone separator is communicated with the top of the return feeder, and one side of the return feeder is communicated with one side of the gasification furnace. The invention provides a process system capable of producing high-quality charcoal and gasified gas without tar, and the gasification reaction efficiency can be greatly improved.

The invention relates to a method and a device, in particular to a method and a device for desulfurizing and decarbonizing synthesis gas. The device is composed of a dust removal mechanism, an absorption mechanism and a regeneration mechanism, the dust removal mechanism comprises a rotary spraying dust removal tower, the absorption mechanism comprises a rotary spraying absorption tower, and the regeneration mechanism comprises a rotary spraying regeneration tower; the rotary spraying dust removal tower, the rotary spraying absorption tower and the rotary spraying regeneration tower are respectively composed of a tower body and a rotary spraying device. According to the device and the method, the phase boundary area of liquid can be greatly increased, the absorption can be effectively improved, and the mass transfer efficiency is improved; meanwhile, the turbulence degree of a gas phase and a liquid phase is improved, the gas-liquid contact time is prolonged, and the mass transfer efficiency is further improved. The rotary spraying device not only can replace conventional tower plates and fillers, but also can be flexibly applied to new construction of related enterprise devices and reconstruction projects of old devices; and compared with a rotary packed tower, the process is simple, the energy consumption is reduced, and the method is suitable for new equipment construction. The problem of low mass transfer efficiency in the existing desulfurization and decarbonization method is solved.

The invention discloses a protection method for low-temperature corrosion of high-sodium coal pyrolysis gas. The protection method comprises the following steps: cooling chlorine-containing high-temperature gas generated by high-sodium coal pyrolysis to 400-600 DEG C in a temperature control manner, and feeding the chlorine-containing high-temperature gas into a high-temperature dust remover for dust removal; feeding the dedusted chlorine-containing high-temperature coal gas into a multi-stage waste heat recovery device for temperature control condensation, wherein the temperature control range is 300-40 DEG C; in the temperature control condensation process, a continuous and compact tar liquid film layer is formed on the wall of a heat exchange pipe of the waste heat recovery device in an attached mode; through the formed tar liquid film layer, chlorine-containing high-temperature coal gas is isolated from being in direct contact with the wall of the heat exchange pipe, and corrosion of chlorine elements to the wall of the heat exchange pipe is avoided. The self-repairing tar liquid film is formed on the heat exchange surface through accurate temperature control, and the problem that metal equipment is corroded by a chlorine-containing medium is solved by combining sodium adsorption and chlorine blocking mechanisms.