CN203098053U - Chemical hydrogen-rich gas collecting and utilizing system - Google Patents
Chemical hydrogen-rich gas collecting and utilizing system Download PDFInfo
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- CN203098053U CN203098053U CN 201320112188 CN201320112188U CN203098053U CN 203098053 U CN203098053 U CN 203098053U CN 201320112188 CN201320112188 CN 201320112188 CN 201320112188 U CN201320112188 U CN 201320112188U CN 203098053 U CN203098053 U CN 203098053U
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Abstract
The utility model discloses a chemical hydrogen-rich gas collecting and utilizing system. The system comprises a chemical hydrogen-rich gas collecting device (1), a gas turbine (2), a waste heat boiler (3) and a steam turbine (4), wherein the chemical hydrogen-rich gas collecting device (1) is connected to a combustion chamber of the gas turbine (2) through a pipeline, a tail gas discharging port of the combustion chamber is communicated with the waste heat boiler (3), a steam discharging port of the waste heat boiler (3) is connected to the steam turbine (4), and in addition, a condensate water recovering device (5) can be connected with a condensate water discharging port of the waste heat boiler (3) so as to be used for recovering the condensate water. The chemical hydrogen-rich gas collecting and utilizing system disclosed by the utility model can effectively collect and fully utilize the chemical hydrogen-rich gas, so that the purpose of comprehensive utilization of coal resources is achieved, and simultaneously the discharge amount of CO2 gas and NOx gas and other pollutants can be reduced. The fuel cost is saved for a power generation system, the chemical hydrogen-rich gas collecting and utilizing system has a high comprehensive utilization degree and is beneficial to energy saving and emission reduction.
Description
Technical field
The collection that the utility model relates to a kind of chemical industry hydrogen-rich gas utilizes system, and recyclable synthesis gas from coal gasification and the chemical industry of utilizing speeded venting for combined cycle generation and generation low pollution emission.
Background technique
The CO of combustion of fossil fuel discharging
2Quicken Global Climate and warmed, become the hot issue that current international community pays close attention to.As the whole world maximum be the country of main energy sources with coal, China is the development low-carbon economy, the reply climatic change is as the great strategy of national economy social development, country and enterprise are all bearing reduction of discharging CO
2Important mission.At present, for a lot of coal chemical industry enterprises (comprising more large-scale coal chemical industry enterprises), all exist with chemical industry speed the venting (part H
2Content can reach more than 70%) burning of releasing flare, i.e. the phenomenon of " point day a lamp ", this has caused great energy waste and has discharged a large amount of CO
2Gas.But this chemical industry speeds to be rich in the hydrogen composition in the venting, and when it was burnt in gas turbine as hydrogen-rich fuel, its product mainly was a water, can farthest reduce CO
2Gas purging.Thereby this chemical industry is speeded to exit and need effectively be utilized preferably.When adopting synthesis gas from coal gasification, can obtain pure hydrogen gas by conversion, adopt combined cycle generation can realize near-zero release.
The model utility content
The purpose of this utility model is to provide a kind of collection of chemical industry hydrogen-rich gas to utilize system, with effective collection with make full use of the chemical industry hydrogen-rich gas, reduces CO
2The discharging of pollutants such as gas.
For achieving the above object, the utility model provides a kind of collection of chemical industry hydrogen-rich gas to utilize system, this system comprises chemical industry hydrogen-rich gas gathering-device, gas turbine, exhaust heat boiler and steam turbine, described chemical industry hydrogen-rich gas gathering-device pipeline is connected to the firing chamber of described gas turbine, the exhaust port of this firing chamber is communicated with described exhaust heat boiler, and the Boiler Steam exhaust port of this exhaust heat boiler is connected to described steam turbine.
Preferably, this system also can comprise air compressor, and this air compressor pipeline is connected to the combustion-supporting gas inlet of the firing chamber of described gas turbine.
Preferably, this system also can comprise condensate water recovery device, and this condensate water recovery device connects the condensed water discharge outlet of described exhaust heat boiler.
Preferably, this system also can comprise nitrogen re-injection device, and this nitrogen re-injection device connects the firing chamber of the relief opening and the described gas turbine of described exhaust heat boiler respectively.
Selectively, this system also can comprise air separation equipment, and this air separation equipment has the pure oxygen pipe joint, and this pure oxygen pipe joint connects the firing chamber of described gas turbine.
Selectively, this system also can comprise water vapour re-injection device, and this water vapour re-injection device connects the firing chamber of the relief opening and the described gas turbine of described exhaust heat boiler respectively.
Preferably, this system also can comprise condensate water recovery device, and this condensate water recovery device connects the condensed water discharge outlet of described exhaust heat boiler.
Preferably, said system also can comprise speed atmospheric pipe and/or be used to carry the synthesis gas from coal gasification pipeline of synthesis gas from coal gasification of the chemical industry that is used to carry chemical industry to speed to exit, and speed atmospheric pipe and/or synthesis gas from coal gasification pipeline of described chemical industry connects described chemical industry hydrogen-rich gas gathering-device.
Preferably, this system also can comprise the Water gas shift/WGS device, and described synthesis gas from coal gasification pipeline is connected with described chemical industry hydrogen-rich gas gathering-device by described Water gas shift/WGS device.
Preferably, this system also can comprise the carbon dioxide recovering apparatus that is connected on the described Water gas shift/WGS device.
Pass through technique scheme, collection according to chemical industry hydrogen-rich gas of the present utility model utilizes in the system, can collect chemical industry speed venting or chemical industry hydrogen-rich gas such as synthesis gas from coal gasification by chemical industry hydrogen-rich gas gathering-device, feed it in gas turbine and in the presence of combustion improvers such as air or pure oxygen, burn, combustion tail gas can be used as thermal source and feeds in the exhaust heat boiler, and the Boiler Steam that produces in the exhaust heat boiler can be used for the steam turbine generating.Combustion tail gas will have only water vapour, nitrogen or a spot of CO simultaneously
2Gas etc., the recyclable condensed water that utilizes behind the water vapor condensation, and nitrogen etc. other can be recycled in the gas turbine to reduce gas turbine combustion temperature and discharged nitrous oxides.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with following embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structure principle chart that utilizes system according to the collection of the chemical industry hydrogen-rich gas of a kind of preferred implementation of the present utility model;
Fig. 2 is the structure principle chart that utilizes system according to the collection of the chemical industry hydrogen-rich gas of another kind of preferred implementation of the present utility model.
Description of reference numerals
1 chemical industry hydrogen-rich gas gathering-device, 2 gas turbines
3 exhaust heat boilers, 4 steam turbines
5 condensate water recovery devices, 6 air compressors
7 nitrogen re-injection devices, 8 air separation equipments
9 Water gas shift/WGS devices, 10 carbon dioxide recovering apparatus
Embodiment
Below, describe in detail with reference to the accompanying drawings according to mode of execution of the present utility model.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As Fig. 1 or shown in Figure 2, the utility model provides a kind of collection of chemical industry hydrogen-rich gas to utilize system, this system comprises chemical industry hydrogen-rich gas gathering-device 1, gas turbine 2, exhaust heat boiler 3 and steam turbine 4, chemical industry hydrogen-rich gas gathering-device 1 pipeline is connected to the firing chamber of described gas turbine 2, the chemical industry hydrogen-rich gas is fed this gas turbine 2 internal combustion, the exhaust port of this firing chamber is communicated with described exhaust heat boiler 3 to feed described exhaust heat boiler 3 in as thermal source combustion tail gas and to make this boiler produce Boiler Steam, and the Boiler Steam exhaust port of this exhaust heat boiler 3 is connected to described steam turbine 4 and is used for generating or heat supply in the steam turbine 4 so that Boiler Steam is sent into.As total design, the utility model contains less CO by collecting and burning chemical industry hydrogen-rich gas to utilize burning energy and combustion tail gas
2Gas, the water vapour in the combustion tail gas are through recyclable condensed water behind the exhaust heat boiler, and the heat of combustion tail gas also can be used for for steam turbine generating or heating.Thereby farthest utilized chemical industry speed venting or chemical industry hydrogen-rich gas such as synthesis gas from coal gasification, and reclaimed benefit materials and produced minimum pollutant.
Wherein, for coal fired power generation, rich hydrogen or pure hydrogen burning are a kind of carbon emission reduction technology that has development potentiality.Hydrogen is during as gas turbine fuel, because water is unique products of combustion, therefore hydrogen fuel has comparatively unique character, compare with rock gas, rock gas in gas turbine, burn the back combustion gas in water vapour content be that 8.3/12.3%(does not have/have fuel presaturation process), water vapour content is that 13.1/20.1%(does not have/have fuel presaturation process in the combustion gas of back and hydrogen burns in gas turbine), its water vapour content improves greatly, and its CO
2Discharge amount then is approximately zero.Begun in the prior art being thereby that the relevant problem that fuel burns as power source is studied with hydrogen, for example application number is 200810104995.0, name is called that to have introduced a kind of in the patent application of " a kind of is the power circulation method of fuel with hydrogen " be fuel with hydrogen, is oxygenant with the pure oxygen and is the power circulation method of cycle fluid with the carbon dioxide.Application number is 201010246773.X, and name is called in the patent application of " a kind of method and equipment that uses hydrogen fuel and gas turbine to carry out oxy-fuel combustion " has introduced a kind of method that adopts pure oxygen and hydrogen-rich fuel to burn.Thereby the chemical industry hydrogen-rich gas burnt in gas turbine and utilize has feasibility.And the steam that utilizes exhaust heat boiler also is mature technology for the steam turbine generating, thereby those skilled in the art can know is that above-mentioned design of the present utility model can be achieved.
Particularly, when hydrogen-rich gas burns in gas turbine 2, utilize air as combustion improver usually, this promptly reduces the energy consumption process that utilizes air separation equipment that pure oxygen is separated with respect to using pure oxygen can reduce system energy consumption for combustion improver.Therefore, as shown in Figure 1, said system also can comprise air compressor 6, and these air compressor 6 pipelines are connected to the firing chamber of gas turbine 2, participates in burning will inject as the air of combustion improver in this gas turbine 2.When utilizing air as combustion improver, said system also can comprise condensate water recovery device 5, this condensate water recovery device 5 connects the condensed water discharge outlet of described exhaust heat boiler 3, with reclaim described combustion tail gas through exhaust heat boiler 3 and with this boiler heat exchange after the condensed water that generates.The recovery of this condensed water also is a water-deficient area tool significance for China's western region for example, rich coal area simultaneously.In addition, in the gas turbine of burning hydrogen-rich combustion gas, main natural gas fuel of gas turbine both domestic and external or lower calorific value synthetic gas are for hydrogen-rich combustion gas, because the combustion temperature height, for reducing pollutant emission, need re-injection nitrogen or water vapour etc., carry out dilute combustion, this will increase the flow of combustion gas, the part gas turbine need be transformed the flow passage component of gas compressor and turbine, to realize through-flow coupling.Therefore, this system also can comprise nitrogen re-injection device 7, this nitrogen re-injection device 7 connects the firing chamber of described gas turbine 2 and the relief opening of exhaust heat boiler 3 respectively, comprise water vapour and nitrogen in chemical industry hydrogen-rich gas and the air combustion tail gas after gas turbine 2 internal combustion, water vapour and nitrogen via exhaust heat boiler 3 heat exchange after, water reclaims, and nitrogen then is recycled in the gas turbine 2 by this nitrogen re-injection device 7, with the combustion temperature of reduction gas turbine 2 and the discharge amount of nitrogen oxide.
When hydrogen-rich gas burns in gas turbine 2, for institute is produced in the application with air separation equipment, also can utilize the isolated pure oxygen of air separation equipment to participate in burning as combustion improver.As shown in Figure 2, this system also comprises air separation equipment 8, and this air separation equipment 8 has the pure oxygen pipe joint, and the pure oxygen pipe joint connects the firing chamber of gas turbine 2, participates in burning will inject as the pure oxygen of combustion improver in this gas turbine 2.Similarly, this system also can comprise condensate water recovery device 5, and this condensate water recovery device 5 connects the condensed water discharge outlet of exhaust heat boiler 3, to reclaim the condensed water that combustion tail gas generates through exhaust heat boiler 3 backs.And as shown in Figure 2, the relief opening directly emptying after condensed water reclaims in the exhaust heat boiler 3 at this moment, environment produces and seldom or hardly produces gaseous contamination to external world.In addition, when adopting air separation equipment, can be by injecting the combustion temperature that water vapour reduces gas turbine 2.Thereby, this system also can comprise water vapour re-injection device, this water vapour re-injection device connects the firing chamber of described gas turbine 2 and the relief opening of exhaust heat boiler 3 respectively, with collect described combustion tail gas in exhaust heat boiler 3 a part of water vapour and it is recycled in the described gas turbine 2.
Above-mentioned chemical industry hydrogen-rich gas can be that chemical industry speeds to exit or synthesis gas from coal gasification, also can be that other is the fuel of main component with hydrogen.When adopting chemical industry to speed venting or synthesis gas from coal gasification, said system of the present utility model also can comprise speed atmospheric pipe and/or be used to carry the synthesis gas from coal gasification pipeline of synthesis gas from coal gasification of the chemical industry that is used to carry chemical industry to speed to exit, and speed atmospheric pipe and/or synthesis gas from coal gasification pipeline of described chemical industry is connected to described chemical industry hydrogen-rich gas gathering-device 1.Wherein, the composition that chemical industry speeds to exit is based on hydrogen, and collect the back of can directly collecting or be purified.And hydrogen concentration is lower usually in the synthesis gas from coal gasification, need carry out Water gas shift/WGS.Thereby, when the chemical industry hydrogen-rich gas of described chemical industry hydrogen-rich gas gathering-device 1 collection comprises synthesis gas from coal gasification, as Fig. 1 or shown in Figure 2, this system also can comprise Water gas shift/WGS device 9, and the synthesis gas from coal gasification pipeline is connected with chemical industry hydrogen-rich gas gathering-device 1 by Water gas shift/WGS device 9.Adopting the Water gas shift/WGS device to extract hydrogen is a kind of mature technology, and for example number of patent application is promptly to disclose a kind of Water gas shift/WGS device in 201010294330 the patent application.In addition, obtain also to have produced a large amount of CO outside the hydrogen through Water gas shift/WGS
2Gas need be caught.Thereby this system also can comprise the carbon dioxide recovering apparatus 10 that links to each other with described Water gas shift/WGS device 9, and Water gas shift/WGS device 9 can feed this carbon dioxide in carbon dioxide recovering apparatus 10, makes CO
2Gas can forever be sealed up for safekeeping or resourceful utilization.
To sum up, collection according to chemical industry hydrogen-rich gas of the present utility model utilizes system to speed to exit or synthesis gas from coal gasification by making full use of chemical enterprise, can realize the industry innovation of coal, electric power and chemical industry and highly integrated, both reach the purpose of coal resources comprehensive utilizations, realize CO again
2Reduce discharging.Simultaneously, can also realize the low NOx drainage of hydrogen-rich fuel gas turbine.Adopt rich hydrogen-fueled technology can realize the recycling of waste gas, be equivalent to save fuel cost for power generation system, integrated and optimize and combine by system height simultaneously, the comprehensive utilization degree of whole system will be improved, and help energy-saving and emission-reduction.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up by any suitable manner, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the collection of a chemical industry hydrogen-rich gas utilizes system, it is characterized in that, this system comprises chemical industry hydrogen-rich gas gathering-device (1), gas turbine (2), exhaust heat boiler (3) and steam turbine (4), described chemical industry hydrogen-rich gas gathering-device (1) pipeline is connected to the firing chamber of described gas turbine (2), the exhaust port of this firing chamber is communicated with described exhaust heat boiler (3), and the Boiler Steam exhaust port of this exhaust heat boiler (3) is connected to described steam turbine (4).
2. the collection of chemical industry hydrogen-rich gas according to claim 1 utilizes system, it is characterized in that, this system also comprises air compressor (6), and this air compressor (6) pipeline is connected to the combustion-supporting gas inlet of the firing chamber of described gas turbine (2).
3. the collection of chemical industry hydrogen-rich gas according to claim 2 utilizes system, it is characterized in that, this system also comprises condensate water recovery device (5), and this condensate water recovery device (5) connects the condensed water discharge outlet of described exhaust heat boiler (3).
4. the collection of chemical industry hydrogen-rich gas according to claim 2 utilizes system, it is characterized in that, this system also comprises nitrogen re-injection device (7), and this nitrogen re-injection device (7) connects the firing chamber of the relief opening and the described gas turbine (2) of described exhaust heat boiler (3) respectively.
5. the collection of chemical industry hydrogen-rich gas according to claim 1 utilizes system, it is characterized in that, this system also comprises air separation equipment (8), and this air separation equipment (8) has the pure oxygen pipe joint, and this pure oxygen pipe joint connects the firing chamber of described gas turbine (2).
6. the collection of chemical industry hydrogen-rich gas according to claim 5 utilizes system, it is characterized in that, this system also comprises water vapour re-injection device, and this water vapour re-injection device connects the firing chamber of the relief opening and the described gas turbine (2) of described exhaust heat boiler (3) respectively.
7. the collection of chemical industry hydrogen-rich gas according to claim 5 utilizes system, it is characterized in that, this system also comprises condensate water recovery device (5), and this condensate water recovery device (5) connects the condensed water discharge outlet of described exhaust heat boiler (3).
8. the collection according to any described chemical industry hydrogen-rich gas among the claim 1-7 utilizes system, it is characterized in that, this system also comprises speed atmospheric pipe and/or be used to carry the synthesis gas from coal gasification pipeline of synthesis gas from coal gasification of the chemical industry that is used to carry chemical industry to speed to exit, and speed atmospheric pipe and/or synthesis gas from coal gasification pipeline of described chemical industry connects described chemical industry hydrogen-rich gas gathering-device (1).
9. the collection of chemical industry hydrogen-rich gas according to claim 8 utilizes system, it is characterized in that, this system also comprises Water gas shift/WGS device (9), and described synthesis gas from coal gasification pipeline is connected with described chemical industry hydrogen-rich gas gathering-device (1) by described Water gas shift/WGS device (9).
10. the collection of chemical industry hydrogen-rich gas according to claim 9 utilizes system, it is characterized in that, this system also comprises the carbon dioxide recovering apparatus (10) that is connected on the described Water gas shift/WGS device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112188 CN203098053U (en) | 2013-03-12 | 2013-03-12 | Chemical hydrogen-rich gas collecting and utilizing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112188 CN203098053U (en) | 2013-03-12 | 2013-03-12 | Chemical hydrogen-rich gas collecting and utilizing system |
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| CN203098053U true CN203098053U (en) | 2013-07-31 |
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| CN 201320112188 Expired - Lifetime CN203098053U (en) | 2013-03-12 | 2013-03-12 | Chemical hydrogen-rich gas collecting and utilizing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505493A (en) * | 2014-09-22 | 2016-04-20 | 百富环保科技有限公司 | Garbage landfill gas treatment method and garbage landfill gas treatment system |
| CN114436215A (en) * | 2021-12-29 | 2022-05-06 | 安徽华塑股份有限公司 | Dehydrogenation process of hydrogen chloride synthesis gas |
| CN114702004A (en) * | 2022-04-01 | 2022-07-05 | 兰州裕隆气体股份有限公司 | Methanol hydrogen production purge gas recycling system |
-
2013
- 2013-03-12 CN CN 201320112188 patent/CN203098053U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505493A (en) * | 2014-09-22 | 2016-04-20 | 百富环保科技有限公司 | Garbage landfill gas treatment method and garbage landfill gas treatment system |
| CN114436215A (en) * | 2021-12-29 | 2022-05-06 | 安徽华塑股份有限公司 | Dehydrogenation process of hydrogen chloride synthesis gas |
| CN114436215B (en) * | 2021-12-29 | 2023-12-29 | 安徽华塑股份有限公司 | Dehydrogenation process of hydrogen chloride synthesis gas |
| CN114702004A (en) * | 2022-04-01 | 2022-07-05 | 兰州裕隆气体股份有限公司 | Methanol hydrogen production purge gas recycling system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |