CN106855017A - The system and method that a kind of application chemical industry periodic off-gases generate electricity - Google Patents
The system and method that a kind of application chemical industry periodic off-gases generate electricity Download PDFInfo
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- CN106855017A CN106855017A CN201510899312.5A CN201510899312A CN106855017A CN 106855017 A CN106855017 A CN 106855017A CN 201510899312 A CN201510899312 A CN 201510899312A CN 106855017 A CN106855017 A CN 106855017A
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- Prior art keywords
- gases
- chemical industry
- periodic
- industry periodic
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/70—Application in combination with
- F05D2220/76—Application in combination with an electrical generator
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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
- Y02E20/14—Combined heat and power generation [CHP]
Abstract
The invention discloses the system that a kind of application chemical industry periodic off-gases generate electricity, including：The device of methyl alcohol, including chemical industry periodic off-gases output end are produced with coke-stove gas；TRT, is provided with the inlet end of chemical industry periodic off-gases, is connected with chemical industry periodic off-gases output end.The system architecture generated electricity according to application chemical industry periodic off-gases provided by the present invention is simple, practical so that chemical industry periodic off-gases have new application approach, improve value, generate economic benefit.Meanwhile, a kind of method that application chemical industry periodic off-gases generate electricity is additionally provided in the present invention.
Description
Technical field
The present invention relates to the system and method that a kind of application chemical industry periodic off-gases generate electricity.
Background technology
There are many Dun Xing coke-oven plants up to a million by the coke-stove gas of generation for producing methyl alcohol in China, the generation of chemical industry periodic off-gases is associated with the synthesis process of methyl alcohol.This chemical industry periodic off-gases cleanliness factor is higher, and the content of corrosive impurity is few, and its Main Ingredients and Appearance is hydrogen (H2), the content of hydrogen is 70% or so of chemical industry periodic off-gases.Meanwhile, this chemical industry periodic off-gases have the advantages that source of the gas is higher compared with stable emissions pressure.
However, because the calorific value of the gas of this chemical industry periodic off-gases is smaller, in 8.27MJ/M3~9.8MJ/M3Between, make being of limited application for this chemical industry periodic off-gases.The hydrogen reclaimed in periodic off-gases is mainly to chemical industry periodic off-gases application at present, or for boiler combustion, the gas is even directly put to idle discharge in some producers so that this chemical industry periodic off-gases could not be fully utilized.
The content of the invention
The purpose of the present invention is directed to the deficiency that chemical industry periodic off-gases could not be fully used in the prior art, there is provided the system that a kind of application chemical industry periodic off-gases generate electricity.This system architecture is simple, practical, and chemical industry periodic off-gases can be turned waste into wealth, and for stable electric generation, improves economic benefit.
The present invention is to be achieved through the following technical solutions：The system that a kind of application chemical industry periodic off-gases generate electricity, including：The device of methyl alcohol, including chemical industry periodic off-gases output end are produced with coke-stove gas；TRT, is provided with the inlet end of chemical industry periodic off-gases, is connected with chemical industry periodic off-gases output end.
Further, the pressure-regulating device of regulation gas pressure is provided with above-mentioned TRT, the pressure-regulating device is decompressor, and decompressor adjusts the pressure of chemical industry periodic off-gases, the pressure after downward is less than 2.5Mpa.
Further, fuel adjusting executing agency is provided with above-mentioned TRT, fuel adjusting executing agency is provided with adjusting air valve, is used to adjust the gas flow area of the chemical industry periodic off-gases.
Further, the gas flow area that above-mentioned adjusting air valve is controlled is 0~2000mm2。
Further, above-mentioned TRT is Gas Turbine Generating Units.
Meanwhile, a kind of method that application chemical industry periodic off-gases generate electricity is additionally provided in the present invention, including：The system generated electricity using above-mentioned application chemical industry periodic off-gases；The system is burnt the chemical industry periodic off-gases and is generated electricity；
Further, the supply gas pressure of chemical industry periodic off-gases is 0.75~2.5Mpa, the 1000~7000Nm of air inflow of chemical industry periodic off-gases3/h。
Further, the supply gas pressure of chemical industry periodic off-gases is 1.0~1.2MPa in the above method；The air inflow of chemical industry periodic off-gases is 2000~3800Nm3/h。
What the present invention was produced has the beneficial effect that：The system architecture generated electricity according to application chemical industry periodic off-gases provided by the present invention is simple, practical so that the application of chemical industry periodic off-gases improves value, generates economic benefit.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the present invention.Unless otherwise specified, all technologies used herein and scientific terminology have the identical meanings being generally understood that with general technical staff of the technical field of the invention.
The produced chemical industry periodic off-gases during using coke-stove gas production methyl alcohol, cleanliness factor is higher, and corrosive impurity is few, and has the advantages that source of the gas is higher compared with stable emissions pressure.If a kind of method can be found to use this chemical industry periodic off-gases, it is not only able to realize the optimization of using energy source, while the maximization of interests can be realized.Therefore, inventor attempts for chemical industry periodic off-gases to be applied to power field.
In a kind of specific embodiment of the invention, there is provided the system that a kind of application chemical industry periodic off-gases generate electricity, within the system, including：The device and the TRT for being generated electricity that burnt using gas of methyl alcohol are produced with coke-stove gas, chemical industry periodic off-gases output end is provided with the device that methyl alcohol is produced with coke-stove gas；And the inlet end of chemical industry periodic off-gases is provided with TRT.TRT is connected by the inlet end of chemical industry periodic off-gases with the chemical industry periodic off-gases output end of the device that methyl alcohol is produced with coke-stove gas.
Because the calorific value of chemical industry periodic off-gases is smaller, in 8.27MJ/M3~9.8MJ/M3Between, if being directly applied to generating equipment, the igniting of engine, raising speed can be caused difficult, and it is difficult to the generating stablized using chemical industry periodic off-gases.How chemical industry periodic off-gases stabilization is applied to power field, invention is by experiment repeatedly, it is found that by controlling the pressure of chemical industry periodic off-gases, with chemical industry periodic off-gases air inflow, can solve the problem that the small deficiency of the calorific value of chemical industry periodic off-gases.
In a kind of specific embodiment of the invention, the pressure-regulating device of regulation gas pressure is provided with TRT in the system using the generating of chemical industry periodic off-gases, this pressure-regulating device is arranged on the inside of TRT, and the air inlet with the chemical industry periodic off-gases of TRT is connected.The pressure-regulating device is decompressor, and decompressor adjusts the pressure of the chemical industry periodic off-gases flowed into from the air inlet of chemical industry periodic off-gases, the pressure after downward is less than 2.5Mpa.
In the prior art, the electricity generating principle of equipment for being generated electricity using gas burning is：After gas turbine operating, the compressor of gas turbine continuously sucks air and is pressurized from ambient atmosphere, out enter combustion chamber afterwards through the air after compressor pressure, in combustion chamber, import is blended with the fuel being injected into, then ignition, produce the combustion gas of HTHP, the combustion gas of HTHP sprays from combustor exit, begin to expansion, turbo blade acting is promoted while expansion, after the energy of combustion gas is converted into kinetic energy by turbine, on the one hand thermodynamic cycle is persistently carried out for compressor compressed air, still further aspect is by main shaft by the torque output of rotor, drive electrical power generators.
The system that the application chemical industry periodic off-gases for being provided in the present invention generate electricity, by having used this chemical industry periodic off-gases by the association of coke-stove gas production methyl alcohol institute as gas raw material, the pressure of this chemical industry periodic off-gases is larger, the supercharging device in pressure regulating system can be save, reduce TRT from power consumption, while decreasing the maintenance work of equipment.
In a kind of specific embodiment of the invention,, using fuel adjusting executing agency is provided with the TRT in chemical industry periodic off-gases electricity generation system, fuel adjusting executing agency is provided with adjusting air valve for this, is used to adjust the gas flow area of the chemical industry periodic off-gases.Preferably, the gas flow area that adjusting air valve is controlled is 0~2000mm2, to ensure the air demand of the system that chemical industry periodic off-gases of the present invention generate electricity in 1000~7000Nm3/ h, and then ensure the stable electric generation of generating equipment.
In a kind of specific embodiment of invention, the TRT used in the system using the generating of chemical industry periodic off-gases is Gas Turbine Generating Units.QDR20 type Gas Turbine Generating Units, this QDR20 types Gas Turbine Generating Units such as can be used can realize the performance of cogeneration.
At present, there are many Gas Turbine Generating Units that could not be come into operation, QDR20 types Gas Turbine Generating Units described above in most coke-oven plant.Before coke-stove gas is not used for production methyl alcohol, most coke-stove gas carries out cogeneration in being transported to this QDR20 types Gas Turbine Generating Units.With the progress of society, the development of science and technology, coke-stove gas is gradually applied to produce methyl alcohol, and this QDR20 types Gas Turbine Generating Units are idle, do not recycle, this QDR20 types Gas Turbine Generating Units cannot be applied, resource is not only wasted, space is also occupied.Chemical industry periodic off-gases are carried out into cogeneration using this QDR20 types Gas Turbine Generating Units in the present invention, a production chain for stabilization is formd.
Meanwhile, present invention also offers a kind of method that application chemical industry periodic off-gases generate electricity, comprise the following steps：Using the system generated electricity according to application chemical industry periodic off-gases provided by the present invention, system burning chemical industry periodic off-gases and generate electricity, the wherein supply gas pressure of chemical industry periodic off-gases is 0.75~2.5Mpa, and the air inflow of chemical industry periodic off-gases is 1000~7000Nm3/h.Within the range, the burning of chemical industry periodic off-gases disclosure satisfy that the igniting of engine in generating equipment, raising speed, form the power generation mode of stabilization.Preferably, the supply gas pressure of chemical industry periodic off-gases is 1.0~1.2MPa；The air inflow of chemical industry periodic off-gases is 2000~3800Nm3/h.The power output ＞ 1000KW of the system generated electricity using chemical industry periodic off-gases are ensure that within the range.
Experiment is proved：
Embodiment 1
The specific steps that a kind of application chemical industry periodic off-gases generate electricity are given below, including, one idle-running of startup of unit, one balancing speed one generates electricity etc., and during the system generated electricity using application chemical industry periodic off-gases provided by the present invention carries out power generation process, parameter is during result lists table 1 in during device use.
The parameter and result of the application chemical industry periodic off-gases TRT of table 1.
As shown in table 1, the system for being generated electricity using application chemical industry periodic off-gases provided by the present invention is generated electricity, by after group starting balancing speed step of one idle-running one, the gas flow area of adjusting air valve being set into 130~360mm2.By the air demand of chemical industry periodic off-gases in 2000~3400Nm3In the range of/h, the power output ＞ 1000KW of the system that present invention application chemical industry periodic off-gases generate electricity are ensure that.
If the consumption in table 1 when chemical industry periodic off-gases is 3364.5m3During/h, the power output of TRT is 2024kW, and steam production is 6t/h, is calculated according to 0.5997 yuan/KW of electricity price, and steam is calculated by 200 yuan/t of the market price.The economic interests of generation are 2413.8 yuan/h.
In sum, chemical industry periodic off-gases are applied to power field in the present invention, it is possible to increase the value of chemical industry periodic off-gases, improve economic benefit, while being capable of preferably environmental protection, it is to avoid environmental pollution.In addition, chemical industry periodic off-gases high purity, corrosive substance are few in itself, be powered as burning gases using chemical industry periodic off-gases, the service life of generating equipment can be extended.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for a person skilled in the art, the present invention there can be various modifications and variations.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included within the scope of the present invention.
Claims (8)
1. the system that a kind of application chemical industry periodic off-gases generate electricity, it is characterised in that including：
The device of methyl alcohol, including chemical industry periodic off-gases output end are produced with coke-stove gas；
TRT, is provided with the inlet end of chemical industry periodic off-gases, is connected with the chemical industry periodic off-gases output end.
2. system according to claim 1, characterized in that, being provided with the pressure-regulating device of regulation gas pressure in the TRT, the pressure-regulating device is decompressor, the decompressor adjusts the pressure of the chemical industry periodic off-gases, the pressure after downward is less than 2.5Mpa.
3. system according to claim 2, it is characterised in that fuel adjusting executing agency is provided with the TRT, the fuel adjusting executing agency is provided with adjusting air valve, is used to adjust the gas circulating face of the chemical industry periodic off-gases.
4. system according to claim 3, it is characterised in that the gas flow area that the adjusting air valve is controlled is 0~2000mm2。
5. system according to claim 4, it is characterised in that the TRT is Gas Turbine Generating Units.
6. a kind of method that application chemical industry periodic off-gases generate electricity, it is characterised in that including：
The system that application chemical industry periodic off-gases any one of usage right requirement 1-5 generate electricity；The system is burnt the chemical industry periodic off-gases and is generated electricity.
7. method according to claim 6, it is characterised in that
0.75~the 2.5Mpa of supply gas pressure of institute's chemical industry periodic off-gases, the air inflow of chemical industry periodic off-gases is higher than 1000~7000Nm3/h。
8. method according to claim 7, it is characterised in that
The supply gas pressure of the chemical industry periodic off-gases is 1.0~1.2MPa；
The air inflow of the chemical industry periodic off-gases is 2000~3800Nm3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899312.5A CN106855017A (en) | 2015-12-09 | 2015-12-09 | The system and method that a kind of application chemical industry periodic off-gases generate electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899312.5A CN106855017A (en) | 2015-12-09 | 2015-12-09 | The system and method that a kind of application chemical industry periodic off-gases generate electricity |
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| Publication Number | Publication Date |
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| CN106855017A true CN106855017A (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510899312.5A Withdrawn CN106855017A (en) | 2015-12-09 | 2015-12-09 | The system and method that a kind of application chemical industry periodic off-gases generate electricity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292394A (en) * | 2021-06-15 | 2021-08-24 | 河海大学 | Coke oven gas coupling waste incineration power generation system methyl alcohol system |
-
2015
- 2015-12-09 CN CN201510899312.5A patent/CN106855017A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292394A (en) * | 2021-06-15 | 2021-08-24 | 河海大学 | Coke oven gas coupling waste incineration power generation system methyl alcohol system |
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| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170616 |
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| WW01 | Invention patent application withdrawn after publication |