CN111892313A - System and method for purifying and trapping carbon dioxide suitable for cement kiln - Google Patents

System and method for purifying and trapping carbon dioxide suitable for cement kiln Download PDF

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Publication number
CN111892313A
CN111892313A CN202010882136.5A CN202010882136A CN111892313A CN 111892313 A CN111892313 A CN 111892313A CN 202010882136 A CN202010882136 A CN 202010882136A CN 111892313 A CN111892313 A CN 111892313A
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China
Prior art keywords
channel
material channel
outlet
carbon dioxide
flue gas
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CN202010882136.5A
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Chinese (zh)
Inventor
张冬冬
刘亚雷
方明
王朝雄
陈慧
周海叶
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Nanjing Triumph Kaineng Environment & Energy Co ltd
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Nanjing Triumph Kaineng Environment & Energy Co ltd
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Priority to CN202010882136.5A priority Critical patent/CN111892313A/en
Publication of CN111892313A publication Critical patent/CN111892313A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/434—Preheating with addition of fuel, e.g. calcining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/44—Burning; Melting
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/47—Cooling ; Waste heat management
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0233—Other waste gases from cement factories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a carbon dioxide purification and trapping system suitable for a cement kiln, which comprises a preheater, a cylindrical shaft kiln and a carbon trapping device, wherein the cylindrical shaft kiln comprises a material channel and a flue gas channel, a combustor is arranged in the flue gas channel, the combustor generates high temperature in the flue gas channel through combustion and transmits the high temperature to the material channel, and the combustor generates high temperature in the flue gas channel and transmits the high temperature to the material channelPart of raw material in the preheater enters the material channel to be heated and decomposed into CO2，CO2The gas is directed to the carbon capture device to be captured. The invention also discloses a method for purifying and trapping carbon dioxide suitable for the cement kiln, by adopting the system, high-temperature gas in the flue gas channel of the cylindrical shaft kiln is transferred into the material channel, and materials in the material channel are heated to decompose CO2，CO2The gas is directed to the carbon capture device to be captured.

Description

System and method for purifying and trapping carbon dioxide suitable for cement kiln
Technical Field
The invention belongs to the technical field of building material production environment-friendly disposal equipment, and particularly relates to a system and a method for purifying and trapping carbon dioxide suitable for a cement kiln.
Background
The environmental problems such as global warming, sea level rising and the like are increasingly severe, and the greenhouse effect seriously threatens the survival of human beings. China is the largest greenhouse gas emission country in the world, and China has CO in 20192The emissions are about 97 million tons, accounting for 1/3 of global carbon emissions (330 million tons). The cement industry is China's industrial CO2The important emission industry, the China cement yield is the first in the world for nearly thirty years, and the emission of CO is generated by producing one ton of clinker2The amount is about 0.8 ton, and the cement accounts for about 8-10% of the total carbon emission of industrial production. The cement industry is listed as the key point that low-carbon treatment must be carried out by the nation at present, and carbon emission reduction is not only a serious challenge facing the cement industry, but also an important opportunity for realizing scientific and technological progress of the cement industry.
The cement industry has four main ways to reduce carbon emission: the former three proposals, which are commonly used in a plurality of cement plants all over the world, are limited by various factors, such as the lack of a cementing mixture in certain regions, the limitation of fuel sources and the like, and are limited by the lack of a cementing mixture in certain regions, the use of alternative fuels, the improvement of unit heat consumption, carbon Capture and Carbon Sequestration (CCS)The ultimate feasibility also depends on whether the quality standards of cement applications can be met, and therefore the industry is concerned with CCS technology that can greatly reduce the carbon emission of cement. At present, the cement industry adopts a chemical adsorption method to capture and purify carbon dioxide in kiln tail waste gas, and a domestic first demonstration project is established, and the project investment amount reaches billions of yuan. CO in cement kiln tail flue gas2The concentration is only about 20%, and harmful acidic gas such as SO2And NOx, etc. are more, the system operating cost of the exemplary project is high, and the quality of the recovered carbon dioxide is low. Among the various operating indexes, CO in the flue gas2The concentration is the biggest factor influencing the CCS cost, and how to increase the CO in the flue gas2Concentration is a difficult problem to break through urgently for CCS.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention provides a system and a method for purifying and trapping carbon dioxide suitable for a cement kiln, wherein smoke produced by the cement kiln and smoke produced by decomposing raw materials are mutually isolated, compared with the existing carbon trapping system, the carbon trapping cost can be obviously reduced, and the concentration of the carbon dioxide gas can be greatly improved.
The invention is realized by the following technical scheme:
the utility model provides a system for carbon dioxide purification entrapment suitable for cement kiln, includes preheater, barrel-type shaft kiln and carbon entrapment device, barrel-type shaft kiln includes material passageway and flue gas passageway, set up the combustor in the flue gas passageway, the combustor is in the flue gas passageway internal combustion produces high temperature and transmits extremely material passageway, partly entering of raw material in the preheater material passageway is heated and is decomposed out CO2，CO2The gas is directed to the carbon capture device to be captured.
Furthermore, the material channel surrounds the outer side of the flue gas channel, and the inner wall surface of the material channel is laid with a fireproof heat-insulating material.
Further, the preheater comprises C11, C12, C2, C3, C4 and C5 sections from top to bottom, a first branch is arranged between an outlet of the C4 section of the preheater and the material channel, and raw meal at the outlet of the C4 section leads to the material channel; a second branch is arranged between the outlet of the section C5 of the preheater and the first pipeline, and raw meal at the outlet of the section C5 of the preheater is premixed with raw meal at the outlet of the section C4 of the preheater and then leads to the material channel; and a third branch is arranged between the outlet of the material channel and the inlet of the material channel.
Further, CO generated in the material passage2The gas passes through the heat exchange device and the dust remover in sequence and then is sent to the carbon trapping device by the fan for trapping.
The high-temperature material at the outlet of the material channel is fed into the decomposing furnace for utilization, and the high-temperature gas in the flue gas channel is introduced into the decomposing furnace for utilization.
Furthermore, the inlet and the outlet of the material channel of the cylindrical shaft kiln are respectively provided with a distributing device and a discharging device; and the first branch, the second branch, the third branch and pipelines between the outlet of the material channel and the decomposing furnace are all provided with flap valves.
Furthermore, the combustor is also provided with a coal distribution device, the decomposing furnace is also provided with a coal supply pipeline, and the coal distribution device is connected with the coal supply pipeline; the system also comprises a grate cooler, the combustor is also connected with the grate cooler, and the grate cooler provides high-temperature air for the combustor.
The invention also provides a method for the carbon dioxide purification and capture system suitable for the cement kiln, by adopting the system, the high-temperature gas in the flue gas channel of the cylindrical shaft kiln transfers heat to the material channel, and the material in the material channel is heated to decompose CO2，CO2The gas is directed to the carbon capture device to be captured.
Further, the temperature of the flue gas channel is more than 1000 ℃, and the temperature of the material channel is 900-1000 ℃.
The invention has the beneficial effects that:
(1) the system can be transformed based on the existing cement kiln production system, the investment amount is small, and the branch of the heat-supplementing burner utilizes the coal distribution of the burner on the existing decomposing furnace.
(2) The temperature of raw materials at the outlet of the preheater C4 is about 600 ℃, the inlet of the material channel of the cylindrical shaft kiln is respectively in direct contact with the outlet materials (900 plus 1000 ℃) of the material channel of the cylindrical shaft kiln and the outlet materials (700 plus 800 ℃) of the preheater C5, the temperature of the premixed materials entering the cylindrical shaft kiln can be effectively increased, and the combustor can meet the decomposition temperature (850 plus 900 ℃) of calcium carbonate only by supplementing less energy.
(3) The cylindrical shaft kiln is divided into a material channel and a flue gas channel, and the complex flue gas generated by burning coal powder and the high CO generated by decomposing carbonate2The gas is not in direct contact with the catalyst, thereby reducing CO2Other harmful acid gas content in the gas.
(4) The material channel and the flue gas channel are partitioned, the concentration of carbon dioxide gas is increased to more than 80% from 20% in the flue gas, and the implementation cost of carbon capture is greatly reduced.
Drawings
FIG. 1 is a diagram of the apparatus arrangement of the present invention;
FIG. 2 is a sectional view of a shaft kiln of the cylinder type;
wherein: 1. a cement rotary kiln; 2. a decomposing furnace; 3. a preheater; 4. a grate cooler; 5. a cylindrical shaft kiln; 5-1, outer wall; 5-2, inner wall; 5-3, a material channel; 5-4, a flue gas channel; 6. a burner; 7. a coal distributing device; 8. a heat exchange device; 9. a dust remover; 10. a fan; 11. a carbon capture device.
Detailed Description
The invention will be further described with reference to fig. 1 and 2 and the detailed description.
As shown in fig. 1, a system for purifying and capturing carbon dioxide suitable for a cement kiln comprises a rotary cement kiln 1, a decomposing furnace 2, a preheater 3, a grate cooler 4, a cylindrical shaft kiln 5, a burner 6, a coal separating device 7, a heat exchange device 8, a dust remover 9, a fan 10 and a carbon capturing device 11.
A cylindrical shaft kiln 5 is arranged in the system, as shown in figure 2, the cylindrical shaft kiln 5 comprises an outer wall 5-1 and an inner wall 5-2, the inner wall 5-2 encloses a flue gas channel 5-4 in the center, the outer wall 5-1 encloses a material channel 5-3 on the outer side of the inner wall 5-2, and a fireproof heat-insulating material is laid on the inner wall surface of the outer wall 5-1 to realize the heat-insulating function for the cylindrical shaft kiln 5.
The bottom of a flue gas channel 5-4 of the cylindrical vertical kiln 5 is provided with a burner 6, the burner 6 is respectively connected with a coal separating device 7 and the grate cooler 4, and the coal separating device 7 is connected with a coal supply pipeline of the decomposing furnace 2 of the cement kiln system.
The purpose of the burner 6 is here: the fuel in the burner 6 is coal, and the combustion of coal dust can generate a high temperature of over 1000 ℃, which can heat and decompose CaCO in the raw material3To produce CO2(ii) a The cement kiln system is provided with a burner at the decomposing furnace 2, a branch is arranged in a coal powder supply pipeline of the burner of the decomposing furnace 2 to supply coal powder to a coal distributing device 7 of the burner 6 of the cylindrical vertical kiln 5, and the coal distributing device 7 conveys the coal powder for the burner 6. The grate cooler 4 provides high-temperature air for the combustor 6.
The preheater 3 comprises sections C11, C12, C2, C3, C4 and C5 from top to bottom, and raw meal passes through sections C4 and C5 from top to bottom in the preheater 3.
Wherein, a first branch is arranged between the outlet of the C4 section of the preheater and the material channel, and the raw meal at the outlet of the C4 section is sent into the material channel 5-3 of the cylinder type vertical kiln 5 for pyrolysis.
A second branch is arranged between an outlet of the section C5 of the preheater and a first pipeline, a part of raw meal at the outlet of the section C5 of the preheater is premixed with the raw meal at the outlet of the section C4, enters a material channel 5-3 of the cylindrical vertical kiln 5 after heat exchange and temperature rise and is heated and decomposed, and the other part of the raw meal is sent into the decomposing furnace 2 to be incinerated and decomposed;
in order to improve the heat absorption efficiency of the raw materials, a third branch is arranged between the outlet of the material channel and the outlet of the material channel, so that a part of the high-temperature materials at the outlet of the material channel 5-3 in the cylindrical shaft kiln 5 are also introduced into the inlet of the material channel 5-3, and the high-temperature materials (900-.
Tests show that the temperature of the raw material at the outlet of the C4 section of the preheater 3 is about 600 ℃, the temperature of the raw material at the outlet of the C5 section of the preheater 3 is 700-The decomposition temperature of (850 ℃ C.) -, 900 ℃ C., the high-temperature decomposition of the raw material to generate CO2The temperature of the outlet material of the gas channel 5-3 is 900-.
The raw meal from the material channel 5-3 of the cylindrical shaft kiln 5 and a part of the raw meal from the outlet of the C5 section of the preheater 3 enter the decomposing furnace 2 to be incinerated and decomposed, and then enter the rotary cement kiln 1 to be incinerated until clinker is formed in the grate cooler 4, and the flue gas enters the decomposing furnace from the rotary cement kiln and then sequentially passes through the C5, C4, C3, C2, C12 and C11 sections of the preheater to preheat the waste raw meal.
The high-temperature waste gas generated by the burner burning coal powder in the flue gas channel 5-4 of the cylindrical shaft kiln 5 is sent into the decomposing furnace 2 for further treatment, and the CO generated by decomposing raw materials in the material channel 5-32The gas passes through the heat exchange device 8 and the dust remover 9 in sequence, and then is sent into the carbon capture device 11 by the fan 10 to be captured by the chemical adsorption method.
The first branch, the second branch, the third branch and pipelines between the outlets of the material channels 5-3 and the decomposing furnace 2 are all provided with flap valves for controlling the opening and closing of the pipelines; the inlet and the outlet of the material channel 5-3 of the cylindrical shaft kiln 5 are respectively provided with a distributing device and a discharging device.
The embodiment also provides a method for purifying and trapping carbon dioxide, which is suitable for a cement kiln, raw meal at the outlet of C4 of a preheater 3 enters a material passage 5-3 of a cylinder type vertical kiln 5 to be decomposed by heating, if the temperature is not enough, the raw meal at the outlet of C4 of the preheater 3 can be premixed with the raw meal at the outlet of C5 of the preheater 3, the raw meal enters the material passage 5-3 of the cylinder type vertical kiln 5 after the temperature is raised by heat exchange, and high-temperature materials at the outlet of the material passage 5-3 of the cylinder type vertical kiln 5 can also participate in premixing of the raw meal at the outlet of C4 and/or C5 of the preheater 3; the combustor 6 injects coal into the flue gas channel 5-3 of the cylindrical shaft kiln 5 for combustion to generate high-temperature flue gas, the high-temperature flue gas heats raw materials in the material channel 5-3 through the inner wall of the cylindrical shaft kiln 5, and carbonate in the raw materials is decomposed to generate carbon dioxide gas after being heated; the gas rich in carbon dioxide is sent into a carbon capture device 10 for chemical adsorption after being subjected to heat exchange and cooling by a heat exchange device 8 and dust removal by a dust remover 9; the residual materials after being heated and decomposed and the high-temperature waste gas after the pulverized coal is combusted are respectively sent into the decomposing furnace 2 for continuous utilization.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (9)

1. The system for purifying and trapping carbon dioxide suitable for cement kiln is characterized by comprising a preheater, a cylindrical shaft kiln and a carbon trapping device, wherein the cylindrical shaft kiln comprises a material channel and a flue gas channel, a burner is arranged in the flue gas channel, the burner is used for burning in the flue gas channel to generate high temperature which is transmitted to the material channel, part of raw materials in the preheater enter the material channel to be heated to decompose CO2，CO2The gas is directed to the carbon capture device to be captured.
2. The system for carbon dioxide purification and capture for use in a cement kiln as recited in claim 1, wherein said material channel surrounds an outer side of said flue gas channel, and wherein an inner wall surface of said material channel is lined with a refractory insulating material.
3. The system for purifying and capturing carbon dioxide suitable for the cement kiln, according to claim 1, wherein the preheater comprises sections C11, C12, C2, C3, C4 and C5 from top to bottom, a first branch is arranged between an outlet of the section C4 of the preheater and the material channel, and raw meal at the outlet of the section C4 is led to the material channel; a second branch is arranged between the outlet of the section C5 of the preheater and the first pipeline, and raw meal at the outlet of the section C5 of the preheater is premixed with raw meal at the outlet of the section C4 of the preheater and then leads to the material channel; and a third branch is arranged between the outlet of the material channel and the inlet of the material channel.
4. The system for carbon dioxide purification capture suitable for use in a cement kiln as recited in claim 1, wherein the CO produced in the feed channel2The gas passes through the heat exchange device and the dust remover in sequence and then is sent to the carbon trapping device by the fan for trapping.
5. The system for purifying and capturing carbon dioxide in a cement kiln as recited in claim 1, further comprising a decomposition furnace, wherein the high-temperature material at the outlet of the material channel is fed into the decomposition furnace for utilization, and the high-temperature gas in the flue gas channel is fed into the decomposition furnace for utilization.
6. The system for purifying and capturing carbon dioxide in a cement kiln as claimed in claim 3, wherein the inlet and the outlet of the material channel of the cylindrical shaft kiln are further provided with a material distributing device and a material discharging device respectively; and the first branch, the second branch, the third branch and pipelines between the outlet of the material channel and the decomposing furnace are all provided with flap valves.
7. The system for purifying and capturing carbon dioxide suitable for the cement kiln is characterized in that the combustor is further provided with a coal distribution device, the decomposing furnace is further provided with a coal supply pipeline, and the coal distribution device is connected with the coal supply pipeline; the system also comprises a grate cooler, the combustor is also connected with the grate cooler, and the grate cooler provides high-temperature air for the combustor.
8. A method for a carbon dioxide purification and capture system suitable for a cement kiln is characterized by comprising the following steps: the system of any one of claims 1 to 7, wherein the high-temperature gas in the flue gas channel of the cylindrical shaft kiln transfers heat to the material channel, and the material in the material channel is decomposed into CO by heating2，CO2The gas is directed to the carbon capture device to be captured.
9. The method for carbon dioxide purification and capture system for cement kiln according to claim 8, characterized by the following: the temperature of the flue gas channel is more than 1000 ℃, and the temperature of the material channel is 900-1000 ℃.
CN202010882136.5A 2020-08-27 2020-08-27 System and method for purifying and trapping carbon dioxide suitable for cement kiln Withdrawn CN111892313A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08104552A (en) * 1994-09-29 1996-04-23 Kawasaki Heavy Ind Ltd Method for burning lime paste and device therefor
CA2443222A1 (en) * 2001-04-13 2002-10-24 Co2 Solution Inc. A process and a plant for the production of portland cement clinker
CN203144295U (en) * 2013-03-09 2013-08-21 石家庄新华能源环保科技股份有限公司 Heat accumulating type dividing-wall heating rotary lime kiln
CN110746131A (en) * 2019-11-29 2020-02-04 天津健威泽节能环保科技股份有限公司 Method for trapping and purifying CO by using external combustion type rotary kiln in cement kiln2And emission reduction system and method
CN212293338U (en) * 2020-08-27 2021-01-05 南京凯盛开能环保能源有限公司 Carbon dioxide purification and trapping system suitable for cement kiln

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08104552A (en) * 1994-09-29 1996-04-23 Kawasaki Heavy Ind Ltd Method for burning lime paste and device therefor
CA2443222A1 (en) * 2001-04-13 2002-10-24 Co2 Solution Inc. A process and a plant for the production of portland cement clinker
CN203144295U (en) * 2013-03-09 2013-08-21 石家庄新华能源环保科技股份有限公司 Heat accumulating type dividing-wall heating rotary lime kiln
CN110746131A (en) * 2019-11-29 2020-02-04 天津健威泽节能环保科技股份有限公司 Method for trapping and purifying CO by using external combustion type rotary kiln in cement kiln2And emission reduction system and method
CN212293338U (en) * 2020-08-27 2021-01-05 南京凯盛开能环保能源有限公司 Carbon dioxide purification and trapping system suitable for cement kiln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
唐金泉;于海;唐兆伟;: "新型干法水泥窑捕集纯化(减排)二氧化碳探讨", 水泥, no. 03 *

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