CN102080600B - System and method for generating power by applying chemical purge gas - Google Patents
System and method for generating power by applying chemical purge gas Download PDFInfo
- Publication number
- CN102080600B CN102080600B CN2010105695827A CN201010569582A CN102080600B CN 102080600 B CN102080600 B CN 102080600B CN 2010105695827 A CN2010105695827 A CN 2010105695827A CN 201010569582 A CN201010569582 A CN 201010569582A CN 102080600 B CN102080600 B CN 102080600B
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- Prior art keywords
- chemical industry
- exit
- generating
- speeds
- speed
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- 239000000126 substance Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010926 purge Methods 0.000 title abstract 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000005611 electricity Effects 0.000 claims description 28
- 238000013022 venting Methods 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000010248 power generation Methods 0.000 abstract description 5
- 239000000571 coke Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 41
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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]
Landscapes
- Control Of Turbines (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a system for generating power by applying chemical purge gas, comprising a device for generating methanol by using coke oven gas and a power generation device, wherein the device for generating the methanol comprises a chemical purge gas outlet end, and the power generation device is provided with a chemical purge gas inlet end which is connected with the chemical purge gas outlet end. The system which is provided by the invention and used for generating the power by applying the chemical purge gas has a simple structure, is practical, brings a novel application way for the chemical purge gas, and can be used for improving the value and producing the economical benefit. Meanwhile, the invention also provides a method for generating the power by applying the chemical purge gas.
Description
Technical field
The present invention relates to a kind of chemical industry speed to exit system and method for generating of using.
Background technique
China have a lot of up to a million tons of type coke-oven plants with the coke-stove gas that produces for the production of methyl alcohol, association has the generation that chemical industry speeds to exit in the synthesis process of methyl alcohol.This chemical industry cleanliness of speeding to exit is higher, and the content of corrosive impurity is few, and its Main Ingredients and Appearance is hydrogen (H
2), the content of hydrogen be chemical industry speed to exit about 70%.Simultaneously, this chemical industry is speeded to exit and is had source of the gas than stable emissions pressure advantage of higher.
Yet, because the calorific value of the gas that this chemical industry speeds to exit is less, at 8.27MJ/M
3～9.8MJ/M
3Between, make being of limited application that this chemical industry speeds to exit.At present chemical industry being speeded to exit up using is mainly the hydrogen that reclaims in speeding to exit, or is used for boiler burning, some producer in addition with this gas directly to the sky discharging, make the venting of speeding of this chemical industry fail to be fully utilized.
Summary of the invention
The objective of the invention is the deficiency of speeding to exit and failing to be fully used at chemical industry in the prior art, a kind of chemical industry speed to exit system of generating that uses is provided.This system architecture is simple, practical, and the venting of chemical industry can being speeded is turned waste into wealth, and is used for stable electric generation, has improved economic benefit.
The present invention is achieved through the following technical solutions: a kind of chemical industry speed to exit system of generating that uses comprises: produce the device of methyl alcohol with coke-stove gas, comprise the chemical industry output terminal of exitting of speeding; Electricity generating device is provided with the inlet end that chemical industry speeds to exit, and is connected with the chemical industry output terminal of speeding to exit.
Further, be provided with the pressure regulator of adjustments of gas pressure in the above-mentioned electricity generating device, this pressure regulator is decompressor, and decompressor is regulated the pressure that chemical industry speeds to exit, and makes the pressure after the downward modulation be lower than 2.5Mpa.
Further, be provided with fuel adjusting actuator in the above-mentioned electricity generating device, fuel adjusting actuator is provided with the adjusting air valve, in order to regulate the gas flow area that described chemical industry speeds to exit.
Further, the gas flow area of above-mentioned adjusting Air Valve Control is 0～2000mm
2
Further, above-mentioned electricity generating device is Gas Turbine Generating Units.
Simultaneously, also provide a kind of chemical industry speed to exit method of generating of using in the present invention, having comprised: used above-mentioned application chemical industry speed the to exit system of generating; This system burn described chemical industry speed the venting and generate electricity;
Further, the supply gas pressure that chemical industry speeds to exit is 0.75～2.5Mpa, air inflow 1000～7000Nm that chemical industry speeds to exit
3/ h.
Further, the supply gas pressure that chemical industry speeds to exit in the said method is 1.0～1.2MPa; The air inflow that chemical industry speeds to exit is 2000～3800Nm
3/ h.
The beneficial effect that the present invention produces is as follows: simple, practical according to application chemical industry provided by the present invention speed the to exit system architecture of generating, the application that makes chemical industry speed to exit has improved value, has produced economic benefit.
Embodiment
Be noted that following detailed description all is exemplary, is intended to the invention provides further instruction.Unless otherwise, all technology used herein and scientific terminology have the identical meanings with general technical staff of the technical field of the invention's common sense.
The chemical industry that produces speeds to exit in the process of utilizing coke-stove gas production methyl alcohol, and cleanliness is higher, and corrosive impurity is few, and has source of the gas than stable emissions pressure advantage of higher.If can seek a kind of method the venting of speeding of this chemical industry is used, not only can realize the optimization of using energy source, can realize simultaneously the maximization of interests.For this reason, the inventor attempts the chemical industry venting of speeding is applied to power field.
In a kind of concrete mode of execution of the present invention, a kind of chemical industry speed to exit system of generating that uses is provided, in this system, comprise: produce the device of methyl alcohol and the electricity generating device that utilizes gaseous combustion to generate electricity with coke-stove gas, produce with coke-stove gas and be provided with the chemical industry output terminal of exitting of speeding in the device of methyl alcohol; And be provided with the inlet end that chemical industry speeds to exit in the electricity generating device.The inlet end that electricity generating device speeds to exit by chemical industry and be connected with the chemical industry that coke-stove gas is produced the device of the methyl alcohol output terminal of speeding to exit.
Because the calorific value that chemical industry speeds to exit is less, at 8.27MJ/M
3～9.8MJ/M
3Between, if it is directly applied to power generating equipment, can cause igniting, the raising speed difficulty of motor, speed to exit and carry out stable generating and be difficult to realize using chemical industry.The stable power field that is applied to of exitting of how chemical industry can being speeded, invention find through repeatedly experiment, and the pressure of speeding to exit by the control chemical industry with the chemical industry air inflow of exitting of speeding, can solve the little deficiency of calorific value that chemical industry speeds to exit.
In a kind of concrete mode of execution of the present invention, this application chemical industry is speeded to exit and is provided with the pressure regulator of adjustments of gas pressure in the electricity generating device in the system of generating, this pressure regulator is arranged on the inside of electricity generating device, and the suction port of speeding to exit with the chemical industry of electricity generating device links to each other.This pressure regulator is decompressor, and decompressor is regulated the pressure that chemical industry that the suction port of speeding to exit from chemical industry flows into speeds to exit, and makes the pressure after the downward modulation be lower than 2.5Mpa.
In the prior art, the electricity generating principle of the equipment that the application gaseous combustion is generated electricity is: after the gas turbine running, the gas compressor of gas turbine continuously sucks air and supercharging from ambient atmosphere, after coming out, the air after the gas compressor supercharging namely enters the firing chamber, carry out blending at firing chamber import and the fuel that is injected into, ignition then, produce the combustion gas of High Temperature High Pressure, the combustion gas of High Temperature High Pressure sprays from combustor exit, just begin to expand, when expanding, promote the turbine blade acting, after turbine is converted into kinetic energy with the energy of combustion gas, be used for gas compressor pressurized air on the one hand and continue to carry out [thermodynamic, on the one hand by the moment of torsion output of main shaft with rotor, drive generator for electricity generation in addition.
The application chemical industry that provides in the present invention speed the to exit system of generating, owing to used by this chemical industry of coke-stove gas production methyl alcohol institute association and speeded venting as gas raw material, the pressure that this chemical industry speeds to exit is bigger, can save the supercharging device in the pressure regulating system, reduced electricity generating device from power consumption, also reduced simultaneously the maintenance work of equipment.
In a kind of concrete mode of execution of the present invention, this application chemical industry is speeded to exit and is provided with fuel adjusting actuator in the electricity generating device in the power generation system, and fuel adjusting actuator is provided with the adjusting air valve, in order to regulate the gas flow area that described chemical industry speeds to exit.Preferably, the gas flow area of adjusting Air Valve Control is 0～2000mm
2, speed to exit the air demand of system of generating at 1000～7000Nm to guarantee chemical industry of the present invention
3/ h, and then the stable electric generation of assurance power generating equipment.
In a kind of concrete mode of execution of invention, this applications chemical industry speeds to exit, and employed electricity generating device is Gas Turbine Generating Units in the system that generates electricity.As using QDR20 type Gas Turbine Generating Units, this QDR20 type Gas Turbine Generating Units can realize the performance of cogeneration.
At present, many Gas Turbine Generating Units of failing to come into operation are arranged in most coke-oven plant, as above-mentioned QDR20 type Gas Turbine Generating Units.Before coke-stove gas was not used in production methyl alcohol, most coke-stove gas was transported in this QDR20 type Gas Turbine Generating Units and carries out cogeneration.Along with the progress of society, development of science and technology, coke-stove gas is applied to producing methyl alcohol gradually, and this QDR20 type Gas Turbine Generating Units is left unused, and recycling not, this QDR20 type Gas Turbine Generating Units can not get using, not only waste resource, also taken the space.This QDR20 type Gas Turbine Generating Units of venting use of in the present invention chemical industry being speeded is carried out cogeneration, has formed a stable production chain.
Simultaneously, the present invention also provides a kind of chemical industry speed to exit method of generating of using, comprise the steps: to use according to application chemical industry provided by the present invention speed the to exit system of generating, this system's burning chemical industry is speeded venting and is generated electricity, wherein the chemical industry supply gas pressure of speeding to exit is 0.75～2.5Mpa, and the air inflow that chemical industry speeds to exit is 1000～7000Nm
3/ h.In this scope, the burning that chemical industry speeds to exit can be satisfied igniting, the raising speed of motor in the power generating equipment, forms stable power generation mode.Preferably, the chemical industry supply gas pressure of speeding to exit is 1.0～1.2MPa; The air inflow that chemical industry speeds to exit is 2000～3800Nm
3/ h.In this scope, can guarantee to use chemical industry speed the to exit output power＞1000KW of system of generating.
Experimental results show that:
Embodiment 1
Followingly provide a kind of chemical industry speed to exit concrete steps of generating of using, comprise, startup of unit one idle-running one balancing speed one generatings etc. use application chemical industry provided by the present invention speed the to exit system of generating to carry out in the power generation process, in the device using process parameter the result list in the table 1.
Table 1. is used chemical industry speed to exit parameter and the result of electricity generating device
As shown in table 1, use application chemical industry provided by the present invention speed the to exit system of generating to generate electricity, after group starting one idle-running one balancing speed step, the gas flow area of regulating air valve is set to 130～360mm
2The air demand that chemical industry is speeded to exit is at 2000～3400Nm
3In/h the scope, can guarantee that the present invention uses chemical industry speed the to exit output power＞1000KW of system of generating.
Be 3364.5m as the consumption of speeding to exit when chemical industry in the table 1
3During/h, the output power of electricity generating device is 2024kW, and steam production is 6t/h, calculates according to 0.5997 yuan/KW of electricity price, and steam calculates by 200 yuan/t of the market price.The economic benefits that produce are 2413.8 yuan/h.
In sum, the venting of in the present invention chemical industry being speeded is applied to power field, can improve the value that chemical industry speeds to exit, and has improved economic benefit, can protect environment better simultaneously, avoids environmental pollution.In addition, the speed high purity of venting own, corrosive material of chemical industry is few, uses the chemical industry venting of speeding to power as combustion gas, can prolong the working life of power generating equipment.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. use chemical industry speed the to exit system of generating for one kind, it is characterized in that, comprising:
Produce the device of methyl alcohol with coke-stove gas, comprise the chemical industry output terminal of exitting of speeding;
Electricity generating device is provided with the inlet end that chemical industry speeds to exit, and is connected with the described chemical industry output terminal of speeding to exit;
Be provided with pressure regulator and the fuel adjusting actuator of adjustments of gas pressure in the wherein said electricity generating device, described pressure regulator is decompressor, and described decompressor is regulated the pressure that described chemical industry speeds to exit, and makes the pressure after the downward modulation be lower than 2.5Mpa; Described fuel adjusting actuator is provided with the adjusting air valve, in order to regulate the gas flow area that described chemical industry speeds to exit.
2. system according to claim 1 is characterized in that, the gas flow area of described adjusting Air Valve Control is 0～2000mm
2
3. system according to claim 2 is characterized in that, described electricity generating device is Gas Turbine Generating Units.
4. use chemical industry speed the to exit method of generating for one kind, it is characterized in that, comprising:
Right to use requires speed the to exit system of generating of each described application chemical industry among the 1-3; Described system burn described chemical industry speed the venting and generate electricity.
5. method according to claim 4 is characterized in that,
Supply gas pressure 0.75～2.5Mpa that described chemical industry speeds to exit, the air inflow that chemical industry speeds to exit is 1000～7000Nm
3/ h.
6. method according to claim 5 is characterized in that,
The supply gas pressure that described chemical industry speeds to exit is 1.0～1.2MPa;
The air inflow that described chemical industry speeds to exit is 2000～3800Nm
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105695827A CN102080600B (en) | 2010-12-01 | 2010-12-01 | System and method for generating power by applying chemical purge gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105695827A CN102080600B (en) | 2010-12-01 | 2010-12-01 | System and method for generating power by applying chemical purge gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102080600A CN102080600A (en) | 2011-06-01 |
| CN102080600B true CN102080600B (en) | 2013-07-17 |
Family
ID=44086760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105695827A Expired - Fee Related CN102080600B (en) | 2010-12-01 | 2010-12-01 | System and method for generating power by applying chemical purge gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN102080600B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5927063A (en) * | 1997-08-19 | 1999-07-27 | Exxon Chemical Patents Inc. | High efficiency reformed methanol gas turbine power plants |
| EP0949405B1 (en) * | 1998-04-07 | 2006-05-31 | Mitsubishi Heavy Industries, Ltd. | Turbine plant |
| JP2007239578A (en) * | 2006-03-08 | 2007-09-20 | Jfe Steel Kk | Method of operating gas turbine power generation apparatus |
| CN101892104B (en) * | 2010-06-30 | 2012-10-17 | 西南化工研究设计院 | Method for preparing liquefied natural gas by utilizing relief gas of methanol |
| CN201925027U (en) * | 2010-12-01 | 2011-08-10 | 株洲南方燃气轮机成套制造安装有限公司 | System using chemical purge gas for power generation |
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2010
- 2010-12-01 CN CN2010105695827A patent/CN102080600B/en not_active Expired - Fee Related
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| CN102080600A (en) | 2011-06-01 |
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Granted publication date: 20130717 |