CN101871731A - Large-scale industrial combustion method of dimethyl ether - Google Patents
Large-scale industrial combustion method of dimethyl ether Download PDFInfo
- Publication number
- CN101871731A CN101871731A CN201010189621A CN201010189621A CN101871731A CN 101871731 A CN101871731 A CN 101871731A CN 201010189621 A CN201010189621 A CN 201010189621A CN 201010189621 A CN201010189621 A CN 201010189621A CN 101871731 A CN101871731 A CN 101871731A
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- Prior art keywords
- dimethyl ether
- heat
- combustion
- gasification
- temperature
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- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 title claims abstract description 170
- 238000009841 combustion method Methods 0.000 title abstract description 9
- 238000002309 gasification Methods 0.000 claims abstract description 48
- 238000002485 combustion reaction Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000002918 waste heat Substances 0.000 claims abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003546 flue gas Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 239000003517 fume Substances 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009776 industrial production Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 12
- 210000000481 breast Anatomy 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004814 ceramic processing Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a large-scale industrial combustion method of dimethyl ether. The leveled flue gas waste heat recovery of an industrial combustion furnace of dimethyl ether supplies heat required for the gasification of liquid dimethyl ether before the large-scale industrial combustion of dimethyl ether, the temperature increase of combustion-supporting air and the like. Flue gas waste heat recovery is divided into three levels: the first level is high-temperature waste heat recovery, the second level is to preheat the combustion-supporting air by middle-temperature waste heat, and the third level is to supply heat required for the gasification of liquid dimethyl ether by using low-temperature waste heat. The leveled flue gas waste heat recovery of the industrial combustion furnace of dimethyl ether reduces the heat loss of exhaust flue, increases the industrial combustion efficiency of dimethyl ether, and develops the large-scale gasification technology of dimethyl ether. The combustion method of the invention can increase the combustion efficiency of dimethyl ether by 10-20 percent, the heat efficiency of the industrial furnace can reach more than 90 percent, the heat loss rate of the exhaust flue is less than 8 percent, and the discharge quantity of CO2 and NOx is reduced. The invention provides a high-efficiency, energy-saving and environment-friendly method for the industrial combustion of dimethyl ether.
Description
Technical field
The present invention relates to novel clean fuel field of combustion technology; specifically a kind of dimethyl ether is applied to the method for industrial furnace large-scale industrial combustion; particularly utilize the fume afterheat step to reclaim and supply with institute's calorific requirements such as preceding liquid dimethyl ether gasification of dimethyl ether large-scale industrial combustion and combustion air temperature raising, to improve efficiency of utilization.
Technical background
Because the continuous enhancing of the growing and environmental consciousness of energy demand, dimethyl ether are as a kind of clean fuel, it is efficient, the energy-saving and environmental protection combustion technology is subject to people's attention day by day.Dimethyl ether is a kind of colourless, gas with slight ether fragrance, has characteristics such as inertia, non-corrosiveness, easily compression, condensation, gasification.From the combustion mechanism analysis of dimethyl ether, under the equal heat condition, to compare with other combustion gas such as natural gas, liquefied petroleum gas, the dimethyl ether efficiency of combustion can improve about 5%.Dimethyl ether is being widely used aspect vehicle fuel and the domestic fuel, also is a kind of potential novel industrial fuel with wide application prospect simultaneously.
The dimethyl ether large-scale industrial combustion also is in the research and development stage at present, and subject matter is that the prior art condition can not satisfy the dimethyl ether requirement of gasifying on a large scale, causes the gas quantity of dimethylether industrial burning under-supply, and combustion efficiency is bad.Solve the gasification problem of dimethyl ether large-scale industrial combustion, dimethyl ether is substituted the main energy sources that oil and natural gas becomes the industrial furnace burning, significant to alleviating energy scarcity with the protection environment.
Along with carrying out of industrial enterprise's energy conservation, the industrial furnace flue gas waste heat recovery more and more obtains people's attention.The partial fume waste heat returns to utilize again in the stove and can reduce fuel consumption, has reached object of energy saving.Utilize the needed air of industrial furnace fume afterheat gasification liquid fuel and preheated burning can reclaim most of waste heat.The heat that fume afterheat can provide the liquid fuel gasification process need to absorb guarantees that dimethyl ether can gasify on a large scale, realizes the dimethyl ether large-scale industrial combustion.The needed air of fume afterheat preheated burning has reduced the fuel quantity of supplying with stove on the one hand, but direct saving fuel; On the other hand, increase physics heat, do not increase the smoke evacuation volume, can reduce heat loss due to exhaust gas.
Summary of the invention
The objective of the invention is reasonably to recycle, reduce the thermal loss of smoke evacuation, improve dimethylether industrial efficiency of combustion and heat utilization efficiency, the extensive gasification technology of exploitation dimethyl ether by dimethylether industrial burning stove fume afterheat.The invention provides a kind of dimethyl ether large-scale industrial combustion method, can be widely used in industrial production.
The technical scheme of dimethyl ether large-scale industrial combustion method of the present invention is: it is characterized in that: this method adopts industrial furnace fume afterheat step to reclaim and supplies with preceding liquid dimethyl ether gasification of dimethyl ether large-scale industrial combustion and combustion air temperature raising institute calorific requirement; flue gas waste heat recovery is divided into three grades of utilizations in the method: the first order is that high-temperature residual heat is recycled; the second level is that middle temperature waste heat is used for warm-up combustion-supporting air; the third level is the supply that low temperature exhaust heat is used for liquid dimethyl ether gasification institute calorific requirement, and concrete processing step is as follows:
Fume afterheat step retracting device is installed: waste heat boiler, air preheater, heat exchanger on flue; Liquid dimethyl ether is stored in the fluid reservoir, liquid dimethyl ether enters gasification installation by high-pressure pump, low temperature exhaust heat by heat exchanger with the heat transferred heat transferring medium, heat transferring medium is with the heat transferred gasification installation, get back to heat exchanger at last circulates next time, the gasification of liquid dimethyl ether, the gaseous dimethyl after the gasification enters gas storage holder by Gas Pipe and stores; During burning, gaseous dimethyl is delivered to high-pressure injection formula burner by Gas Pipe and is burnt through the voltage-stablizer voltage stabilizing, and the hot-air that air preheater comes out is delivered to high-pressure injection formula burner by warm-air pipe, carries out combustion-supportingly, and waste heat boiler reclaims high-temperature residual heat.
Low temperature exhaust heat gasification of liquid dimethyl ether is a closed cycle system, and the heat transferring medium of heat exchanger can be a gas, and as air, nitrogen etc. or liquid, as conduction oil, water, the temperature after the heat transferring medium heat exchange can reach 200～300 ℃.
Utilize warm waste heat warm-up combustion-supporting air in the flue gas, middle temperature flue-gas temperature scope is 400～900 ℃, and air preheater can preheated air to 200～600 ℃.
Utilize the low temperature and low pressure steam gasification of liquid dimethyl ether of discharging in the industrial production, low temperature and low pressure steam is stored in the vapor can, enter gasification installation, get back to vapor can at last, realize recycling by appendix.
Usually, the industrial furnace fume afterheat is classified according to temperature, generally can be divided three classes: high-temperature residual heat, middle temperature waste heat, low temperature exhaust heat.Dimethylether industrial burning stove fume afterheat step reclaims and is divided into is three grades: the first order is that high-temperature residual heat reclaims, and the second level is middle temperature waste heat warm-up combustion-supporting air, and the third level is a low temperature exhaust heat gasification of liquid dimethyl ether.In warm waste heat combustion air temperature raising institute calorific requirement can be provided, low temperature exhaust heat can provide dimethyl ether gasification institute calorific requirement.The fume afterheat step reclaims can reasonably utilize fume afterheat, satisfies institute's calorific requirements such as preceding liquid dimethyl ether gasification of dimethyl ether large-scale industrial combustion and combustion air temperature raising.
Fume afterheat step retracting device is installed: waste heat boiler, air preheater, heat exchanger on flue.Liquid dimethyl ether is stored in the fluid reservoir, and liquid dimethyl ether enters gasification installation by high-pressure pump, heat exchanger by heat transferring medium the heat transferred gasification installation, the gasification of liquid dimethyl ether, the gaseous dimethyl after the gasification enters gas storage holder by Gas Pipe and stores.During burning, gaseous dimethyl is delivered to high-pressure injection formula burner by Gas Pipe and is burnt through the voltage-stablizer voltage stabilizing.The hot-air that air preheater comes out is delivered to high-pressure injection formula burner by warm-air pipe, carries out combustion-supporting.Waste heat boiler reclaims high-temperature residual heat.
Air preheater can preheated air to 200～600 ℃, and heat transferring medium can make temperature reach 200～300 ℃ by the heat exchanger heat exchange.Warm-up combustion-supporting air can improve the ignition temperature in the burner hearth, thereby improves the production capacity of industrial furnace.The combustion air preheat temperature is high more, and the physics heat of bringing in the stove is many more, and the theoretical temperature combustion of dimethyl ether is high more, and combustion efficiency is good more.Particularly the hot industry stove uses low-calorie dimethyl ether fuel, then must be with the combustion air preheating.The temperature of heat transferring medium is high more, and the heat that can offer gasification installation is many more, helps the carrying out of liquid dimethyl ether gasification.
The advantage that the present invention has compared with the prior art:
1, dimethylether industrial burning stove fume afterheat cascade utilization has reduced the thermal loss of discharging fume, and has improved the thermal efficiency of industrial furnace.
2, dimethylether industrial burning stove fume afterheat warm-up combustion-supporting air has improved the efficiency of combustion of dimethyl ether and the furnace temperature of industrial furnace, has reduced CO
2, NO
xDischarge capacity.
3, dimethylether industrial burning stove fume afterheat gasification of liquid dimethyl ether has been developed the extensive gasification technology of dimethyl ether, has realized the dimethyl ether large-scale industrial combustion.
Description of drawings
Fig. 1 is each appliance arrangement schematic diagram in the combustion method of the present invention.
Fig. 2 is each appliance arrangement schematic diagram among another embodiment of combustion method of the present invention.
Among the figure: 1, industrial combustion furnace; 2, Gas Pipe; 3, high-pressure injection formula burner; 4, warm-air pipe; 5, air preheater; 6, heat exchanger; 7, flue; 8, heat transferring medium conduit; 9, gasification installation; 10, fluid reservoir; 11, high-pressure pump; 12, blower fan; 13, gas storage holder; 14, waste heat boiler; 15, voltage-stablizer; 16, vapor can; 17, appendix.
The specific embodiment
The industrial furnace fume afterheat is classified according to temperature, generally can be divided three classes: high-temperature residual heat, middle temperature waste heat, low temperature exhaust heat.Dimethylether industrial burning stove fume afterheat step reclaims and is divided into is three grades: the first order is that high-temperature residual heat reclaims, and the second level is middle temperature waste heat warm-up combustion-supporting air, and the third level is a low temperature exhaust heat gasification of liquid dimethyl ether.In warm waste heat combustion air temperature raising institute calorific requirement can be provided, low temperature exhaust heat can provide dimethyl ether gasification institute calorific requirement.The fume afterheat step reclaims can reasonably utilize fume afterheat, satisfies institute's calorific requirements such as preceding liquid dimethyl ether gasification of dimethyl ether large-scale industrial combustion and combustion air temperature raising.
Fume afterheat step retracting device is installed: waste heat boiler, air preheater, heat exchanger on flue.Liquid dimethyl ether is stored in the fluid reservoir, and liquid dimethyl ether enters gasification installation by high-pressure pump, heat exchanger by heat transferring medium the heat transferred gasification installation, the gasification of liquid dimethyl ether, the gaseous dimethyl after the gasification enters gas storage holder by Gas Pipe and stores.During burning, gaseous dimethyl is delivered to high-pressure injection formula burner by Gas Pipe and is burnt through the voltage-stablizer voltage stabilizing.The hot-air that air preheater comes out is delivered to high-pressure injection formula burner by warm-air pipe, carries out combustion-supporting.Waste heat boiler reclaims high-temperature residual heat.
Air preheater can preheated air to 200～600 ℃, and heat transferring medium can make temperature reach 200～300 ℃ by the heat exchanger heat exchange.Warm-up combustion-supporting air can improve the ignition temperature in the burner hearth, thereby improves the production capacity of industrial furnace.The combustion air preheat temperature is high more, and the physics heat of bringing in the stove is many more, and the theoretical temperature combustion of dimethyl ether is high more, and combustion efficiency is good more.Particularly the hot industry stove uses low-calorie dimethyl ether fuel, then must be with the combustion air preheating.The temperature of heat transferring medium is high more, and the heat that can offer gasification installation is many more, helps the carrying out of liquid dimethyl ether gasification.
Embodiment 1
The shuttle kiln fire box temperature of certain ceramic processing factory burning dimethyl ether can reach 1200～1300 ℃, and the thermal efficiency 81%, burnout rate are 90%, and the heat loss due to exhaust gas rate is 10%, and the chimney breast flue-gas temperature is 160 ℃, NO in the flue gas
xConcentration is 46mg/m
3
Adopt combustion method of the present invention, through test, the shuttle kiln fire box temperature of this ceramics factory's burning dimethyl ether can reach 1300～1400 ℃, efficiency of combustion has improved 10%, the thermal efficiency is 91%, and burnout rate is more than 99%, and the heat loss due to exhaust gas rate is 5%, the chimney breast flue-gas temperature is 50 ℃, NO in the flue gas
xConcentration is 23mg/m
3
Embodiment 2
The reverberatory furnace fire box temperature of certain smeltery's burning dimethyl ether can reach 1300～1400 ℃, and the thermal efficiency 87%, burnout rate are 92%, and the heat loss due to exhaust gas rate is 16%, and the chimney breast flue-gas temperature is 280 ℃, NO in the flue gas
xConcentration is 67mg/m
3
Adopt combustion method of the present invention, through test, the reverberatory furnace fire box temperature of this smeltery's burning dimethyl ether can reach 1400～1500 ℃, efficiency of combustion has improved 15%, the thermal efficiency is 95%, and burnout rate is more than 99%, and the heat loss due to exhaust gas rate is 7%, the chimney breast flue-gas temperature is 110 ℃, NO in the flue gas
xConcentration is 49mg/m
3
Claims (4)
1. the method for dimethyl ether large-scale industrial combustion; it is characterized in that: this method adopts industrial furnace fume afterheat step to reclaim and supplies with preceding liquid dimethyl ether gasification of dimethyl ether large-scale industrial combustion and combustion air temperature raising institute calorific requirement; flue gas waste heat recovery is divided into three grades of utilizations in the method: the first order is that high-temperature residual heat is recycled; the second level is that middle temperature waste heat is used for warm-up combustion-supporting air; the third level is the supply that low temperature exhaust heat is used for liquid dimethyl ether gasification institute calorific requirement, and concrete processing step is as follows:
Fume afterheat step retracting device is installed: waste heat boiler, air preheater, heat exchanger on flue; Liquid dimethyl ether is stored in the fluid reservoir, liquid dimethyl ether enters gasification installation by high-pressure pump, low temperature exhaust heat by heat exchanger with the heat transferred heat transferring medium, heat transferring medium is with the heat transferred gasification installation, get back to heat exchanger at last circulates next time, the gasification of liquid dimethyl ether, the gaseous dimethyl after the gasification enters gas storage holder by Gas Pipe and stores; During burning, gaseous dimethyl is delivered to high-pressure injection formula burner by Gas Pipe and is burnt through the voltage-stablizer voltage stabilizing, and the hot-air that air preheater comes out is delivered to high-pressure injection formula burner by warm-air pipe, carries out combustion-supportingly, and waste heat boiler reclaims high-temperature residual heat.
2. the method for dimethyl ether large-scale industrial combustion according to claim 1; it is characterized in that: low temperature exhaust heat gasification of liquid dimethyl ether is a closed cycle system; the heat transferring medium of heat exchanger is air, nitrogen gas or conduction oil, water liquid, and the temperature after the heat transferring medium heat exchange can reach 200～300 ℃.
3. the method for dimethyl ether large-scale industrial combustion according to claim 1 is characterized in that: utilize warm waste heat warm-up combustion-supporting air in the flue gas, middle temperature flue-gas temperature scope is 400～900 ℃, air preheater preheated air to 200～600 ℃.
4. the method for dimethyl ether large-scale industrial combustion according to claim 1; it is characterized in that: utilize the low temperature and low pressure steam gasification of liquid dimethyl ether of discharging in the industrial production; low temperature and low pressure steam is stored in the vapor can (16); enter gasification installation by appendix; get back to vapor can at last, realize recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010189621A CN101871731A (en) | 2010-06-02 | 2010-06-02 | Large-scale industrial combustion method of dimethyl ether |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010189621A CN101871731A (en) | 2010-06-02 | 2010-06-02 | Large-scale industrial combustion method of dimethyl ether |
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| CN101871731A true CN101871731A (en) | 2010-10-27 |
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|---|---|---|---|
| CN201010189621A Pending CN101871731A (en) | 2010-06-02 | 2010-06-02 | Large-scale industrial combustion method of dimethyl ether |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022747A (en) * | 2010-11-18 | 2011-04-20 | 昆明龙鑫洋塑料防腐设备制造有限责任公司 | Application of dimethyl ether in industrial boiler and gas supply device of dimethyl ether |
| CN102042592A (en) * | 2010-11-26 | 2011-05-04 | 昆明理工大学 | Trapezoidal counter current flow dimethyl ether/air diffusion combustion system |
| CN102877902A (en) * | 2012-10-12 | 2013-01-16 | 凤阳海泰科能源环境管理服务有限公司 | Electricity-water co-production system implemented through waste heat recovery |
| CN103791513A (en) * | 2014-01-03 | 2014-05-14 | 重庆大学 | Energy-saving efficient vaporizer for dimethyl ether gas-fired boiler |
| CN106016338A (en) * | 2016-05-20 | 2016-10-12 | 昆明理工大学 | Secondary-atomizing oxy-fuel combustion method of burning oil of biomass |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022747A (en) * | 2010-11-18 | 2011-04-20 | 昆明龙鑫洋塑料防腐设备制造有限责任公司 | Application of dimethyl ether in industrial boiler and gas supply device of dimethyl ether |
| CN102022747B (en) * | 2010-11-18 | 2013-07-17 | 昆明龙鑫洋塑料防腐设备制造有限责任公司 | Application of dimethyl ether in industrial boiler and gas supply device of dimethyl ether |
| CN102042592A (en) * | 2010-11-26 | 2011-05-04 | 昆明理工大学 | Trapezoidal counter current flow dimethyl ether/air diffusion combustion system |
| CN102042592B (en) * | 2010-11-26 | 2012-10-31 | 昆明理工大学 | Trapezoidal counter current flow dimethyl ether/air diffusion combustion system |
| CN102877902A (en) * | 2012-10-12 | 2013-01-16 | 凤阳海泰科能源环境管理服务有限公司 | Electricity-water co-production system implemented through waste heat recovery |
| CN102877902B (en) * | 2012-10-12 | 2014-07-23 | 凤阳海泰科能源环境管理服务有限公司 | Electricity-water co-production system implemented through waste heat recovery |
| CN103791513A (en) * | 2014-01-03 | 2014-05-14 | 重庆大学 | Energy-saving efficient vaporizer for dimethyl ether gas-fired boiler |
| CN106016338A (en) * | 2016-05-20 | 2016-10-12 | 昆明理工大学 | Secondary-atomizing oxy-fuel combustion method of burning oil of biomass |
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Application publication date: 20101027 |