CN112126472A - Biomass pyrolysis gasification rotary furnace equipment - Google Patents
Biomass pyrolysis gasification rotary furnace equipment Download PDFInfo
- Publication number
- CN112126472A CN112126472A CN202010838608.7A CN202010838608A CN112126472A CN 112126472 A CN112126472 A CN 112126472A CN 202010838608 A CN202010838608 A CN 202010838608A CN 112126472 A CN112126472 A CN 112126472A
- Authority
- CN
- China
- Prior art keywords
- pyrolysis
- biomass
- pyrolysis gasification
- furnace
- rotary furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/39—Gasifiers designed as centrifuge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1223—Heating the gasifier by burners
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses biomass pyrolysis gasification rotary furnace equipment which comprises a pyrolysis gasification rotary furnace, a heat exchange chamber and a combustion chamber, wherein the heat exchange chamber is coated on the outer side of the pyrolysis gasification rotary furnace, the combustion chamber supplies heat to the heat exchange chamber, at least one part of biomass fuel gas generated by pyrolysis in the pyrolysis gasification rotary furnace is communicated to the combustion chamber, a water vapor inlet is formed in the pyrolysis gasification rotary furnace, and a heat medium outlet of the heat exchange chamber is connected with a water vapor generation assembly and used for generating water vapor to be introduced into the pyrolysis gasification rotary furnace. The material is heated to generate pyrolytic reaction to generate fuel gas and carbon, and the carbon and steam are further gasified and activated to produce high-heat value fuel gas and obtain porous carbon material with adsorption performance. The invention has the advantages of simple equipment structure, high energy utilization efficiency, low production cost and the like, obviously improves the gas yield compared with the pure pyrolysis reaction of biomass, and has more than two times of heat value compared with the biomass air gasification gas.
Description
Technical Field
The invention relates to the technical field of biomass pyrolysis and gasification co-production of carbon materials, in particular to biomass pyrolysis and gasification rotary furnace equipment.
Background
Biomass is a clean renewable energy source. In the utilization of biomass energy, biomass fuels such as wood blocks, wood chips, wood shavings, bamboo blocks, bamboo scraps, shells, straws, biomass particles and the like are mostly directly combusted, and the problems of incomplete combustion, generation of nitrogen oxides, carbon monoxide, smoke dust and other atmospheric pollutants, failure in efficient utilization of resources and the like exist. Pyrolysis refers to the process of decomposing organic raw materials into gas, liquid and carbon under the condition of isolating air or a small amount of air, and the calorific value of the gas product is usually 10000kJ/Nm3The above; gasification refers to a process of gas-solid reaction of a biomass raw material and a gasifying agent such as air, steam or oxygen to generate gas under a certain temperature condition, and the heat value of the gas is usually 5000-6000 kJ/Nm3Left and right; the steam activation refers to a process of forming a porous carbon adsorption material by the erosion of the carbon surface due to the reaction of the carbon and steam, and the formation of a developed pore structure. Through technologies such as biomass pyrolysis, gasification and activation, the low-grade biomass energy can be converted into high-grade clean energy biomass gas, the combustion efficiency is improved, and biomass carbon or porous carbon adsorption materials can be obtained.
In the application of biomass pyrolysis gasification technology, charcoal and fuel gas products are mainly obtained through pyrolysis gasification reaction. At present, more biomass pyrolysis gasification equipment is applied, and mainly comprises a fixed bed gasification furnace, a fluidized bed gasification furnace, a rotary furnace and the like. The biomass pyrolysis gasification of the fixed bed and the fluidized bed mainly takes the preparation of fuel gas, the heat value of the fuel gas is lower, and the produced carbon product has low yield and poor quality. The biomass pyrolysis of the rotary furnace mainly obtains common carbon products, and the heat value of fuel gas is high and the yield is low. In the traditional method for preparing porous adsorption materials such as activated carbon and the like by steam activation, a wood raw material is carbonized firstly, then steam activation reaction is carried out in two steps, carbonization equipment, activation equipment and the like are needed, the project construction investment is large, the production process flow is long, and the operation cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides biomass pyrolysis gasification rotary furnace equipment, which overcomes the problems in the prior art, and becomes an effective way for improving the quality of biomass gas and charcoal and realizing the high-value utilization of biomass energy and co-production charcoal materials.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a living beings pyrolysis gasification rotary furnace equipment, includes pyrolysis gasification rotary furnace and sets up the high temperature heat transfer subassembly in the outside of pyrolysis gasification rotary furnace, high temperature heat transfer subassembly includes the cladding at the heat transfer chamber in the pyrolysis gasification rotary furnace outside and with the combustion chamber of the hot medium entry linkage of heat transfer chamber, the at least partly combustion chamber that leads to of living beings gas that pyrolysis gasification produced in the pyrolysis gasification rotary furnace, be equipped with vapor inlet on the pyrolysis gasification rotary furnace, the hot medium exit linkage of heat transfer chamber has vapor to take place the subassembly, vapor that vapor takes place the subassembly and generates lets in the pyrolysis gasification rotary furnace through vapor inlet.
Furthermore, the water vapor generation assembly comprises a waste heat recoverer, a heat medium inlet of the waste heat recoverer is connected with a heat medium outlet of the heat exchange chamber, a cold medium inlet of the waste heat recoverer is communicated with water, a cold medium outlet of the waste heat recoverer is communicated with water vapor, and the water vapor generation assembly is connected with a water vapor inlet of the pyrolysis gasification rotary furnace through a pipeline.
Furthermore, an annular gas distributor and a pipeline valve which enable the flow direction of the water vapor to be distributed at the bottom in the pyrolysis gasification rotary furnace (5) are arranged at the water vapor inlet.
Furthermore, a material inlet of the pyrolysis gasification rotary furnace is connected with a feeding assembly, the feeding assembly comprises a hopper and a feeding screw machine, an outlet of the hopper is connected with the feeding screw machine, and an outlet of the feeding screw machine is connected with a material inlet of the pyrolysis gasification rotary furnace.
Further, a furnace end feeding chamber is arranged between the pyrolysis gasification rotary furnace and the feeding assembly, a furnace end discharging chamber is arranged at the tail of the pyrolysis gasification rotary furnace, a biomass gas outlet is arranged on the furnace end feeding chamber, and a pressure relief water seal device is further arranged at the biomass gas outlet.
Further, the material exit of pyrolysis gasification rotary furnace is connected with the charcoal cooler, the charcoal cooler includes charcoal discharging channel and the cooling chamber of cladding in the charcoal discharging channel outside, be equipped with cooling water entry and cooling water export on the cooling chamber, the entry of charcoal discharging channel and the material exit linkage of pyrolysis gasification rotary furnace.
Furthermore, a star-shaped discharger is arranged at an outlet of the carbon discharging channel.
Furthermore, spiral material guide plates which are uniformly distributed along the axial direction of the pyrolysis gasification rotary furnace are arranged on the inner wall of the pyrolysis gasification rotary furnace.
A method for producing biomass gas and porous carbon by using biomass raw materials uses any biomass pyrolysis gasification rotary furnace equipment, and comprises the following specific steps:
s1: burning fuel in a combustion chamber, and heating hot flue gas obtained by heating to a pyrolysis and gasification rotary furnace in a heat exchange chamber from a hot medium inlet of the heat exchange chamber to ensure that the temperature in the pyrolysis and gasification rotary furnace reaches more than 750 ℃;
s2: the flue gas is led out from a hot medium outlet of the heat exchange chamber and led into the steam generation assembly, the waste heat of the flue gas is utilized to change water into steam, and the obtained steam enters the pyrolysis gasification rotary furnace from a steam inlet of the pyrolysis gasification rotary furnace;
s3: the biomass raw materials are led into a pyrolysis and gasification rotary furnace, and the biomass raw materials are subjected to pyrolysis, gasification and activation reaction by using heat and water vapor in the pyrolysis and gasification rotary furnace to form a large amount of biomass gas and a porous carbon adsorption material.
Further, a part of the biomass gas generated in S3 is used as fuel for combustion in the combustion chamber, and a large amount of the remaining gas can be output to other gas-using equipment.
Compared with the prior art, the invention has the following advantages:
the material in the pyrolysis gasification rotary furnace is heated to carry out pyrolysis reaction to generate fuel gas and carbon, the carbon is further gasified with the fed water vapor, and activation reaction is carried out simultaneously to produce high-calorific-value fuel gas, and a porous carbon material with adsorption performance can be obtained. Compared with the traditional process for producing the activated carbon by a steam method of firstly carbonizing and then activating, the method has the advantages of simple equipment structure, high energy utilization efficiency, low production cost and the like. Compared with the traditional biomass pure pyrolysis and air gasification process, the biomass pure pyrolysis and air gasification process can not only obviously improve the gas yield compared with the biomass pure pyrolysis reaction, but also has more than two times of the heat value of the biomass air gasification gas.
The spiral guide plate is arranged in the pyrolysis gasification rotary furnace, the materials continuously rotate and roll in the rotary furnace, the materials can be guaranteed to be pyrolyzed, gasified and activated in the process of reaction, the materials are fully rolled in the rotary furnace, hot gas flows are in countercurrent contact with the materials, the contact area of the materials and the furnace wall and the hot gas is increased, high-efficiency rapid pyrolysis gasification and activation reaction can be realized, the large-range pyrolysis of the materials in the rotary furnace can be realized, the gasification and activation time can be realized, the flow direction of water vapor is distributed at the bottom by the annular gas distributor, the water vapor is fully contacted and reacted with carbon, the pipeline valve can be used, the flow of the water vapor can be effectively regulated, the biomass pyrolysis gasification and the activation process can be realized, the regulation and control of the gas yield are convenient, and the product yield of the gas heat value and.
The combustion chamber utilizes fuel gas generated in the pyrolysis gasification and activation reaction of the biomass raw material as fuel, a small amount of fuel gas is recycled and combusted in the combustion chamber through the combustor to provide heat for the external heating type pyrolysis gasification rotary furnace, and external fuel heating is not needed during normal operation; the residual large amount of fuel gas can be output to other equipment for use; the outlet of the heat exchange chamber is connected with a waste heat recoverer, and the waste heat recoverer can reduce the temperature of exhaust smoke and recover heat to produce steam required by biomass gasification and activation at the same time through heat exchange between high-temperature flue gas and water.
Drawings
FIG. 1 is a schematic view of the overall structure of a rotary kiln apparatus for biomass pyrolysis gasification (with piping valves omitted);
description of reference numerals: 1. a hopper; 2. a charging screw machine; 3. a furnace end feeding chamber; 4. a pressure relief water seal device; 5. a pyrolysis gasification rotary furnace; 6. a heat exchange chamber; 7. a waste heat recoverer; 8. a gas distributor; 9. a furnace tail discharge chamber; 10. a burner; 11. a combustion chamber; 12. a char cooler; 13. a star-shaped discharging device; 14. and a biomass gas outlet.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Examples
As shown in figure 1, the rotary biomass pyrolysis and gasification furnace equipment comprises a feeding assembly, a rotary pyrolysis and gasification furnace 5 and a charcoal cooler 12, wherein the feeding assembly is connected with a material inlet of the rotary pyrolysis and gasification furnace 5, and the charcoal cooler 12 is connected with a material outlet of the rotary pyrolysis and gasification furnace 5. Spiral material guide plates which are uniformly distributed along the axial direction are arranged on the inner wall of the rotary pyrolysis and gasification furnace 5, and the rotary pyrolysis and gasification furnace 5 is changed in rotation speed, so that the time of pyrolysis, gasification and activation reaction of materials in the rotary pyrolysis and gasification furnace 5 is adjusted, and the yield of pyrolysis, gasification and activation products of the rotary pyrolysis and gasification furnace 5 is controlled. The outer side of the pyrolysis gasification rotary furnace 5 is provided with a high-temperature heat exchange assembly, the high-temperature heat exchange assembly comprises a heat exchange chamber 6 and a combustion chamber 11, the heat exchange chamber 6 is coated on the outer side of the pyrolysis gasification rotary furnace 5, a heat medium inlet and a heat medium outlet are formed in the heat exchange chamber 6, and the combustion chamber 11 is connected with the heat medium inlet of the heat exchange chamber 6. Specifically, the heat medium inlet of the heat exchange chamber 6 is arranged at the lower part of the heat exchange chamber 6 close to the material outlet of the pyrolysis gasification rotary furnace 5, and the heat medium outlet of the heat exchange chamber 6 is arranged at the upper part of the material inlet of the pyrolysis gasification rotary furnace 5, so that countercurrent heat exchange is formed, and the heat exchange efficiency is improved. The barrel of the rotary pyrolysis gasification furnace 5 is made of 0Cr25Ni20 heat-resistant stainless steel (310S), so that the rotary pyrolysis gasification furnace has good heat transfer performance, ensures the reaction temperature of pyrolysis gasification and activation of biomass in the rotary pyrolysis gasification furnace 5, and has high temperature resistance, so that the rotary pyrolysis gasification furnace 5 can run for a long time.
The biomass gas outlet 14 of the rotary pyrolysis gasification furnace 5 is connected to the combustion chamber 11 and other gas equipment or gas storage equipment through a pipeline, the biomass gas inlet on the combustion chamber 11 is provided with a burner 10, the rotary pyrolysis gasification furnace 5 is provided with a water vapor inlet, and the heat medium outlet of the heat exchange chamber 6 is connected with a water vapor generation assembly. The water vapor generation assembly comprises a waste heat recoverer 7, a heat medium inlet of the waste heat recoverer 7 is connected with a heat medium outlet of the heat exchange chamber 6, water is introduced into a cold medium inlet of the waste heat recoverer 7, the water exchanges heat with high-temperature flue gas of a heat medium outlet of the pyrolysis chamber through the waste heat recoverer 7, the water is changed into water vapor and is introduced out from the cold medium outlet, the water vapor inlet of the pyrolysis gasification rotary furnace 5 is connected through a pipeline, the water vapor is provided for the pyrolysis gasification rotary furnace 5, the water vapor generation assembly is the same as the heat exchange chamber 6, the waste heat recoverer 7 can adopt a form of countercurrent heat exchange, and the heat exchange efficiency is improved. The annular gas distributor 8 and the pipeline valve which enable the flow direction of the steam to be distributed at the bottom in the rotary pyrolysis gasification furnace 5 are arranged at the steam inlet on the rotary pyrolysis gasification furnace 5, so that the steam can be effectively and fully contacted and reacted with the carbon, meanwhile, the steam flow is effectively adjusted through the pipeline valve, the process control of biomass pyrolysis gasification and activation can be realized, and the gas yield, the gas calorific value and the product yield and the adsorption performance of the carbon material can be conveniently adjusted.
The feeding assembly comprises a hopper 1 and a feeding screw machine 2, an outlet of the hopper 1 is connected with an inlet of the feeding screw machine 2, and an outlet of the feeding screw machine 2 is connected with a material inlet of the pyrolysis gasification rotary furnace 5. The material falls into reinforced screw machine 2 from hopper 1, through the slew velocity of control reinforced screw machine 2, the feed rate of biomass raw materials in adjustable pyrolysis gasification rotary furnace 5 adjusts holistic pyrolysis, gasification, the output of activation product. Still be provided with furnace end feed chamber 3 between pyrolysis gasification rotary furnace 5 and reinforced screw 2, the material exit of pyrolysis gasification rotary furnace 5 is equipped with stove tail discharge chamber 9 to all be equipped with dynamic seal spare at both ends junction, in order to guarantee the leakproofness in pyrolysis gasification rotary furnace 5, biomass gas export 14 sets up on furnace end feed chamber 3, and be equipped with pressure release water seal arrangement 4, can in service when meeting accident detonation pressure release rapidly, fully guarantee the security of system operation.
The carbon cooler 12 comprises a carbon discharging channel and a cooling chamber coated outside the carbon discharging channel, a cooling water inlet and a cooling water outlet are arranged on the cooling chamber, the cooling water inlet is arranged on the lower portion, close to the outlet of the carbon discharging channel, of the cooling chamber, and the cooling water outlet is arranged on the upper portion, close to the inlet of the carbon discharging channel, of the cooling chamber to form countercurrent heat exchange. The inlet of the carbon discharging channel is connected with the material outlet of the furnace tail discharging chamber 9, and the outlet of the carbon discharging channel is provided with a star-shaped discharger 13 to ensure the sealing of the rotary furnace system in the discharging process.
A method for producing biomass gas and porous carbon by using biomass raw materials uses the biomass pyrolysis gasification rotary furnace equipment, and comprises the following steps:
s1: burning fuel in a combustion chamber 11, and heating hot flue gas obtained by heating to heat the pyrolysis and gasification rotary furnace 5 in the heat exchange chamber 6 from a hot medium inlet of the heat exchange chamber 6 to ensure that the temperature in the pyrolysis and gasification rotary furnace 5 reaches more than 750 ℃;
s2: the flue gas is led out from a hot medium outlet of the heat exchange chamber 6 and led into the steam generation assembly, the waste heat is utilized to change water into steam, and the obtained steam enters the pyrolysis and gasification rotary furnace 5 from a steam inlet of the pyrolysis and gasification rotary furnace 5;
s3: biomass raw materials are led into a pyrolysis and gasification rotary furnace 5, and the biomass raw materials are subjected to pyrolysis, gasification and activation reaction by using heat and water vapor in the pyrolysis and gasification rotary furnace 5 to form a large amount of biomass gas and a porous carbon adsorption material.
Specifically, in S2, the flue gas discharged from the heat medium outlet of the heat exchange chamber 6 is heat-exchanged with water by the waste heat exchanger, and is changed into steam and introduced into the pyrolysis gasification rotary kiln 5 by a pipe. Before letting in pyrolysis gasification rotary furnace 5, earlier through annular gas distributor 8, distribute the flow direction of vapor in pyrolysis gasification rotary furnace 5 bottom through annular gas distributor 8 for biomass gasification and activation reaction produce high calorific value gas, and have the porous carbon material of adsorption performance.
Specifically, in S3, the biomass raw material of the rotary pyrolysis-gasification furnace 5 may be introduced through the feeding unit, the biomass raw material is fed from the hopper 1 into the feed screw 2, and the biomass raw material is introduced into the rotary pyrolysis-gasification furnace 5 by the feed screw 2.
Part of biomass gas generated by pyrolysis in the pyrolysis gasification rotary furnace 5 is led out from a biomass gas outlet 14 of the furnace end feeding chamber 3, and part of the biomass gas is led into the combustion chamber 11 through a pipeline and used as fuel for combustion, so that heat production through combustion is not required to be carried out by adopting extra fuel, the whole equipment is not required to be heated by inputting external fuel during normal operation, and a large amount of residual gas can be output to other equipment for use. The resulting porous carbon can be cooled by a carbon cooler 12 and finally discharged from a star discharger 13.
Taking the example of producing the fuel gas and the carbon adsorption material by pyrolyzing and gasifying the wood chips, the length multiplied by the width multiplied by the thickness of the wood chip raw material is about 65mm multiplied by 35mm multiplied by 10mm, and the water content is about 12 percent. At the initial stage of starting the device, the pyrolysis gasification rotary furnace 5 is heated by mainly igniting prepared fuel by the combustion chamber 11 for supplying heat, and the temperature in the pyrolysis gasification rotary furnace 5 is gradually increased to 850 ℃ through the combustion of the fuel; then sending the wood chips into an external heating type rotary furnace through a feeding screw machine, pushing the materials to be overturned under the push of a material guide plate in a pyrolysis gasification rotary furnace 5, moving the materials to a furnace tail discharge chamber 9, heating the materials under the condition of air isolation, generating pyrolysis reaction to generate carbon and biomass fuel gas, continuously moving the carbon along a cylinder, reacting the carbon with the fed water vapor, wherein the water vapor ratio is 2:1, gasifying and activating reaction are generated in the pyrolysis gasification rotary furnace 5 to generate more fuel gas and porous carbon adsorption material, a small part of the generated fuel gas is returned to a combustion chamber 11 to be used as external heating energy of the rotary furnace, and the rest fuel gas can be used for other purposes, the generated biomass fuel gas has a heat value of 10800kJ/Nm3, the methylene blue adsorption value of the carbon adsorption material is 11mL/g, and the iodine adsorption value is 950 mg/g; the finally produced porous carbon is cooled by a carbon cooler 12 and discharged from a star-shaped discharger 13.
After biomass gas is stably generated by pyrolysis gasification, fuel in the combustion chamber 11 is switched to biomass gas combustion generated in the pyrolysis gasification rotary furnace 5, equipment enters normal operation, the biomass gas and combustion air enter the combustion chamber 11 through the combustor 10 to be fully and completely combusted, high-temperature flue gas generated after combustion enters the heat exchange chamber 6 to be heated with the pyrolysis gasification rotary furnace 5, flue gas coming out from a heat medium outlet of the heat exchange chamber 6 enters the waste heat recoverer 7, and is used for biomass gasification and activation reaction with water through heat exchange production vapor, the furnace end feeding chamber 3 is connected with a pressure relief water seal, and the system is timely decompressed when accidental deflagration occurs, so that damage to the equipment and operators is avoided.
The material in the pyrolysis gasification rotary furnace 5 is heated to carry out pyrolysis reaction to generate fuel gas and carbon, the carbon is further gasified with the fed water vapor, and activation reaction is carried out simultaneously to produce high-calorific-value fuel gas, and carbon material with porous adsorption performance can be obtained. Compared with the traditional process for producing the activated carbon by a steam method of firstly carbonizing and then activating, the method has the advantages of simple equipment structure, high energy utilization efficiency, low production cost and the like. Compared with the traditional biomass pure pyrolysis and air gasification process, the biomass pure pyrolysis and air gasification process can not only obviously improve the gas yield compared with the biomass pure pyrolysis reaction, but also has more than two times of the heat value of the biomass air gasification gas.
Be provided with the spiral stock guide in pyrolysis gasification rotary furnace 5, the material is continuous rotatory roll in pyrolysis gasification rotary furnace 5, can guarantee the material in pyrolysis gasification, inside abundant roll in pyrolysis gasification rotary furnace 5, and hot gas air current and material countercurrent contact, material and oven have been increased like this, the area of contact of hot gas, realize high-efficient quick pyrolysis gasification and activation reaction, can realize adjusting material pyrolysis gasification time in rotary furnace on a large scale, annular gas distributor 8 makes the flow direction distribution of vapor in the bottom, make vapor and charcoal abundant contact and reaction, and accessible pipeline valve, effectively adjust the vapor flow, can realize biomass pyrolysis gasification, activated process control, be convenient for regulate and control gas yield, the product yield and the adsorption efficiency of gas calorific value and charcoal material.
The combustion chamber 11 uses fuel gas generated during the pyrolysis gasification and activation reaction of the biomass raw material as fuel, a small amount of fuel gas is recycled and combusted in the combustion chamber 11 through the combustor 10 to provide heat for the pyrolysis gasification rotary furnace 5, and external fuel is not required to be input for heating during normal operation; the residual large amount of fuel gas can be output to other equipment for use; an outlet of the heat exchange chamber 6 is connected with a waste heat recoverer 7, and the waste heat recoverer reduces the temperature of exhaust smoke and recovers heat to produce steam required by biomass gasification and activation at the same time through heat exchange between high-temperature flue gas and water.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. A biomass pyrolysis gasification rotary furnace equipment is characterized in that: including pyrolysis gasification rotary kiln (5) and set up the high temperature heat transfer subassembly in the outside of pyrolysis gasification rotary kiln (5), high temperature heat transfer subassembly includes cladding heat transfer chamber (6) in pyrolysis gasification rotary kiln (5) outside and combustion chamber (11) of being connected with the hot medium entry of heat transfer chamber (6), at least some of the biomass gas that pyrolysis gasification produced in pyrolysis gasification rotary kiln (5) leads to combustion chamber (11), be equipped with vapor inlet on pyrolysis gasification rotary kiln (5), the hot medium exit linkage of heat transfer chamber (6) has vapor to take place the subassembly, vapor that vapor generation subassembly generated lets in pyrolysis gasification rotary kiln (5) through vapor inlet.
2. The rotary biomass pyrolysis gasification furnace apparatus according to claim 1, wherein: the water vapor generation assembly comprises a waste heat recoverer (7), a heat medium inlet of the waste heat recoverer (7) is connected with a heat medium outlet of the heat exchange chamber (6), a cold medium inlet of the waste heat recoverer (7) is communicated with water, a cold medium outlet is communicated with water vapor, and the water vapor generation assembly is connected with a water vapor inlet of the pyrolysis gasification rotary furnace (5) through a pipeline.
3. The rotary biomass pyrolysis gasification furnace apparatus according to claim 1, wherein: and an annular gas distributor (8) and a pipeline valve are arranged at the steam inlet for distributing the steam to the inner bottom of the pyrolysis gasification rotary furnace (5).
4. The rotary biomass pyrolysis gasification furnace apparatus according to claim 1, wherein: the material entrance of pyrolysis gasification rotary furnace (5) is connected with material loading subassembly, material loading subassembly includes hopper (1) and reinforced screw machine (2), the export and the reinforced screw machine (2) of hopper (1) are connected, the export of reinforced screw machine (2) and the material entrance of pyrolysis gasification rotary furnace (5) are connected.
5. The rotary biomass pyrolysis gasification furnace apparatus according to claim 4, wherein: a furnace end feeding chamber (3) is arranged between the pyrolysis gasification rotary furnace (5) and the feeding assembly, a furnace end discharging chamber (9) is arranged at the tail part of the pyrolysis gasification rotary furnace (5), a biomass gas outlet (14) is formed in the furnace end feeding chamber (3), and a pressure relief water sealing device (4) is further arranged at the biomass gas outlet (14).
6. The rotary biomass pyrolysis gasification furnace apparatus according to claim 1, wherein: the material exit of pyrolysis gasification rotary furnace (5) is connected with charcoal cooler (12), charcoal cooler (12) include charcoal discharging channel and the cladding cooling chamber in the charcoal discharging channel outside, be equipped with cooling water entry and cooling water export on the cooling chamber, the entry of charcoal discharging channel and the material exit linkage of pyrolysis gasification rotary furnace (5).
7. The rotary biomass pyrolysis gasification furnace apparatus according to claim 6, wherein: and a star-shaped discharger (13) is arranged at the outlet of the carbon discharge channel.
8. The rotary biomass pyrolysis gasification furnace apparatus according to claim 1, wherein: spiral material guide plates which are uniformly distributed along the axial direction of the pyrolysis gasification rotary furnace (5) are arranged on the inner wall of the pyrolysis gasification rotary furnace.
9. A method for producing biomass fuel gas and porous carbon by using biomass raw materials, which uses the biomass pyrolysis gasification rotary kiln equipment as claimed in any one of claims 1 to 8, and is characterized in that: the method comprises the following specific steps:
s1: burning fuel in a combustion chamber (11), and heating hot flue gas obtained by heating to heat the pyrolysis and gasification rotary furnace (5) in the heat exchange chamber (6) from a hot medium inlet of the heat exchange chamber (6) to ensure that the temperature in the pyrolysis and gasification rotary furnace (5) reaches more than 750 ℃;
s2: the flue gas is led out from a hot medium outlet of the heat exchange chamber (6) and is led into the steam generation assembly, the waste heat of the flue gas is utilized to change water into steam, and the obtained steam enters the pyrolysis and gasification rotary furnace (5) from a steam inlet of the pyrolysis and gasification rotary furnace (5);
s3: biomass raw materials are led into a pyrolysis and gasification rotary furnace (5), and the biomass raw materials are subjected to pyrolysis, gasification and activation reactions by utilizing heat and water vapor in the pyrolysis and gasification rotary furnace (5) to form a large amount of biomass gas and a porous carbon adsorption material.
10. The method for producing biomass fuel gas and porous carbon using biomass raw material as claimed in claim 9, wherein: part of the biomass gas generated in the step S3 is used as fuel for combustion in the combustion chamber (11), and a large amount of residual gas can be output to other gas-using equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838608.7A CN112126472A (en) | 2020-08-19 | 2020-08-19 | Biomass pyrolysis gasification rotary furnace equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838608.7A CN112126472A (en) | 2020-08-19 | 2020-08-19 | Biomass pyrolysis gasification rotary furnace equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112126472A true CN112126472A (en) | 2020-12-25 |
Family
ID=73851114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010838608.7A Pending CN112126472A (en) | 2020-08-19 | 2020-08-19 | Biomass pyrolysis gasification rotary furnace equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112126472A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046103A (en) * | 2021-03-17 | 2021-06-29 | 湖南耕农富硒农业科技股份有限公司 | Processing equipment and processing method of biomass fuel |
| WO2022156454A1 (en) * | 2021-01-21 | 2022-07-28 | 东南大学 | Apparatus and method for pyrolyzing and gasifying sludge-coupled biomass |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001158885A (en) * | 1999-09-20 | 2001-06-12 | Japan Science & Technology Corp | Equipment for gasifying tangible fuel and method for gasification thereof |
| CN101693848A (en) * | 2009-10-19 | 2010-04-14 | 中国林业科学研究院林产化学工业研究所 | Process for internally heated continuous preparing biomass pyrolysis gasification gas and rotary furnace utilized by same |
| CN202203950U (en) * | 2011-07-25 | 2012-04-25 | 北京华顺达环保有限公司 | Organic solid waste pyrolyzation and gasification device |
| WO2014026904A1 (en) * | 2012-08-16 | 2014-02-20 | Khd Humboldt Wedag Gmbh | System for producing cement clinker having a combustion device for difficult-to-burn fuels |
| CN107022364A (en) * | 2017-05-10 | 2017-08-08 | 河南省科学院能源研究所有限公司 | Biomass pyrogenation gasification power generating simultaneously activated carbon process and key equipment |
| CN107033973A (en) * | 2017-05-26 | 2017-08-11 | 中国林业科学研究院林产化学工业研究所 | A kind of inside and outside hot integral biomass revolution pyrolytic gasification equipment and application |
| CN109628157A (en) * | 2018-12-11 | 2019-04-16 | 华中科技大学 | A kind of continuous biomass pyrolysis gasifying device and method |
-
2020
- 2020-08-19 CN CN202010838608.7A patent/CN112126472A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001158885A (en) * | 1999-09-20 | 2001-06-12 | Japan Science & Technology Corp | Equipment for gasifying tangible fuel and method for gasification thereof |
| CN101693848A (en) * | 2009-10-19 | 2010-04-14 | 中国林业科学研究院林产化学工业研究所 | Process for internally heated continuous preparing biomass pyrolysis gasification gas and rotary furnace utilized by same |
| CN202203950U (en) * | 2011-07-25 | 2012-04-25 | 北京华顺达环保有限公司 | Organic solid waste pyrolyzation and gasification device |
| WO2014026904A1 (en) * | 2012-08-16 | 2014-02-20 | Khd Humboldt Wedag Gmbh | System for producing cement clinker having a combustion device for difficult-to-burn fuels |
| CN107022364A (en) * | 2017-05-10 | 2017-08-08 | 河南省科学院能源研究所有限公司 | Biomass pyrogenation gasification power generating simultaneously activated carbon process and key equipment |
| CN107033973A (en) * | 2017-05-26 | 2017-08-11 | 中国林业科学研究院林产化学工业研究所 | A kind of inside and outside hot integral biomass revolution pyrolytic gasification equipment and application |
| CN109628157A (en) * | 2018-12-11 | 2019-04-16 | 华中科技大学 | A kind of continuous biomass pyrolysis gasifying device and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156454A1 (en) * | 2021-01-21 | 2022-07-28 | 东南大学 | Apparatus and method for pyrolyzing and gasifying sludge-coupled biomass |
| CN113046103A (en) * | 2021-03-17 | 2021-06-29 | 湖南耕农富硒农业科技股份有限公司 | Processing equipment and processing method of biomass fuel |
| CN113046103B (en) * | 2021-03-17 | 2021-09-14 | 湖南耕农富硒农业科技股份有限公司 | Processing equipment and processing method of biomass fuel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101472859B1 (en) | Method and apparatus for low-temperature biomass pyrolysis and high-temperature biomass gasification | |
| KR101437425B1 (en) | Method and apparatus for biomass pyrolysis gasification via two interconnected furnaces | |
| CA2727827C (en) | Generating clean syngas from biomass | |
| CN103011072B (en) | Method and device for preparing high-purity hydrogen from biomass | |
| CN110669538A (en) | Biomass charcoal-heat co-production process and device for continuously realizing heat self-circulation | |
| KR20130048778A (en) | Process and apparatus for the indirect gasification of biomass using water vapor | |
| CN107760387B (en) | High-nitrogen biomass waste gasification combustion heat supply system and process | |
| CN102329656B (en) | Downdraft biomass gasification reaction chamber and gasification process thereof | |
| CN109852429B (en) | Hydrogen production system and method by coupling coal combustion and garbage steam gasification | |
| CN112126472A (en) | Biomass pyrolysis gasification rotary furnace equipment | |
| CN101880550A (en) | High-temperature solid fuel gasification device | |
| CN106635174B (en) | Heat accumulating type high-calorific-value synthesis gas gasification device and gasification production method based on same | |
| CN103382402A (en) | Biomass gasification pyrolytic reaction system and method | |
| CN108441264B (en) | Method for co-production of biomass charcoal and heat by wood-bamboo powder fluidized bed gasification-gas turbine power generation | |
| CN108048138B (en) | Biomass graded conversion and coal-fired boiler coupling power generation method and system based on medium-low temperature double fluidized beds | |
| CN101921625A (en) | Method and device for producing syngas by combustion and gasification of double cylinders | |
| CN201459014U (en) | Multipurpose carbide furnace with combined beds | |
| CN210485672U (en) | Biomass charcoal gas co-production system | |
| WO2013140418A1 (en) | Multi-condition thermochemical gas reactor | |
| CN208151309U (en) | A kind of fluidized bed pyrolysis device preparing high heating value biological fuel gas | |
| CN1028651C (en) | Cyclic bed gas-steam co-producing technology and equipment | |
| CN201962258U (en) | Renewable energy source power generation system | |
| CN115109606B (en) | Pure hydrogen and poly-generation coupling system prepared from biomass waste | |
| CN111269735B (en) | Biomass three-section type pressurizing high-temperature pyrolysis gasification device | |
| CN220485617U (en) | Energy-saving biomass pyrolysis, carbon activation and gas reforming system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |