CN103453542B - Power plant carbon and oxygen circulation utilization device and process of device - Google Patents
Power plant carbon and oxygen circulation utilization device and process of device Download PDFInfo
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- CN103453542B CN103453542B CN201310397102.7A CN201310397102A CN103453542B CN 103453542 B CN103453542 B CN 103453542B CN 201310397102 A CN201310397102 A CN 201310397102A CN 103453542 B CN103453542 B CN 103453542B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 14
- 239000001301 oxygen Substances 0.000 title claims abstract description 14
- 239000003245 coal Substances 0.000 claims abstract description 52
- 239000003054 catalyst Substances 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 238000004880 explosion Methods 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 29
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- 230000023556 desulfurization Effects 0.000 claims description 12
- 239000012212 insulator Substances 0.000 claims description 10
- 238000013459 approach Methods 0.000 claims description 9
- 239000003337 fertilizer Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 150000003464 sulfur compounds Chemical class 0.000 claims description 7
- 230000003009 desulfurizing effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims description 5
- 239000002817 coal dust Substances 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Natural products O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 9
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 4
- 238000006392 deoxygenation reaction Methods 0.000 abstract 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 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
- Y02E20/32—Direct CO2 mitigation
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to the field of energy saving and environment protection, and relates to the circulation utilization of CO2 (carbon dioxide) and O2 (oxygen gas), in particular to a power plant carbon and oxygen circulation utilization device and a process of the device. The power plant carbon and oxygen circulation utilization device comprises a coal conveyor (17), a CO2 back flow device (6), a plasma torch catalyst (1), an energy-saving boiler (2), a heat exchanger (3), a CO2 catching separator (12), a deaerator (14), a remote anti-explosion total control detection system (18) and a chimney (13). A carrier air coal conveying mode is adopted for conveying reaction raw materials into the plasma torch catalyst (1) to be catalyzed, the catalyzed reaction substances are conveyed into the energy-saving boiler (2) to realize the sufficient combustion with O2, and the generated CO2 is cyclically utilized after the deoxygenation. The device and the process have the advantages that firstly, the low-cost pure oxygen combustion is realized; secondly, the CO2 backflow catalysis and deoxygenation circulation utilization is realized; thirdly, the equipment investment is reduced, and 70 to 80 percent of the equipment volume of the boilers in links of dust removal, denitration, desulfuration and the like is reduced; fourthly, 45 to 70 percent of the coal consumption is saved; and fifthly, the pure conversion rate of heat energy is improved by more than one time.
Description
Technical field
The present invention relates to energy-conserving and environment-protective field, relate to CO
2with O
2recycle, particularly relate to power plant carbon oxygen cycle and utilize device and technique thereof.
Background technology
Power plants generating electricity produces greenhouse effects arch-criminal CO
2, be unfavorable for existing environmental requirement, existing conventional power plants technology is except IGCC generating simultaneously, also there is following defect:
1, air burning, the clean low conversion rate of heat energy, key reaction formula is: C+O
2+ N
2---CO
2+ N
2;
The 1 ton of mark coal that burns needs about 2.7 tons of O
2, and bring about 10 tons of N into
2, in burning and exhausting flue gas, N
2content 78-85%, CO
2content only 8-15%.N in flue gas
2content is high, and one is the immediate cause causing the clean low conversion rate of heat energy, and two is cause the conveyance system volume of equipment such as boiler and dedusting, denitration, desulfurization, chimney large, waste power plant's cost of investment and operating cost.
2, CO
2the wasting of resources, contaminated environment: because CO in flue gas
2content is too low, strengthens CO
2trapping cost, causes power plant CO
2resource is generally wasted.
3, thermal loss is large, the clean low conversion rate of heat energy: the heat energy of 500-1000 DEG C in conventional power plants flue gas, almost all being consumed in dedusting, denitration, sweetening process and fallen by smoke stack emission, is cause the clean low conversion rate of power plant's heat energy in the one of the main reasons of 40%.
Therefore while energy-saving and emission-reduction, the main development direction that the clean conversion ratio of heat energy is existing power plant is improved.
Summary of the invention
The present invention overcomes above-mentioned weak point, and object is to provide power plant carbon oxygen cycle to utilize device and technique thereof, solves that existing power plant thermal energy rate is low, CO
2and O
2the problem such as the wasting of resources, contaminated environment, realizes power plant carbon oxygen cycle and utilizes, improve thermal energy rate.
The present invention achieves the above object by the following technical programs: power plant carbon oxygen cycle utilizes device, comprising: device of delivering coal, CO
2return channel, plasmatorch catalyst converter, power economized boiler, heat exchanger, CO
2trapping separator, degasifier, long-distance anti-explosion master control detection system, chimney; Described plasmatorch catalyst converter one end connects deliver coal device, CO
2return channel, the other end is communicated with the gas approach of power economized boiler bottom, and power economized boiler top is provided with outlet, the outlet on top and CO
2return channel is communicated with, and power economized boiler bottom is also provided with exhanst gas outlet, and the exhanst gas outlet of bottom is connected with the gas approach flue of heat exchanger; The exhanst gas outlet flue of described heat exchanger and CO
2trapping separator connects, CO
2trapping separator is connected with the oxygen feeder of heat exchanger by degasifier, air blast, and degasifier is connected with carbon recover, CO
2trapping separator is also connected with chimney; Described long-distance anti-explosion master control detection system is connected with each device and detects in real time.
As preferably, power plant carbon oxygen cycle utilizes device to include system for desulfuration and denitration, and described system for desulfuration and denitration comprises desulfurizer, denitrification apparatus; Desulfurizer is communicated in exhanst gas outlet flue and the CO of heat exchanger
2between trapping separator, described denitrification apparatus is arranged on outlet and the CO on power economized boiler top
2between return channel; Described desulfurizer comprises: deduster, air-introduced machine, desulfurization slag liquid, desulfurizing tower, heat exchanger, and the exhanst gas outlet flue of described heat exchanger is successively by deduster, air-introduced machine, desulfurization slag liquid, desulfurizing tower, heat exchanger and CO
2trapping separator connects.
As preferably, carbon oxygen cycle utilizes device also to include steam case, clarifier, sulfur-based compound fertilizer production line, and described steam case is communicated with power economized boiler and booster fan, and booster fan is communicated with CO
2return channel and plasmatorch catalyst converter; Described clarifier is communicated with exhanst gas outlet flue and the CO of heat exchanger
2trapping separator, described clarifier is also connected with sulfur-based compound fertilizer production line.
As preferably, described plasmatorch catalyst converter comprises: hollow cathode base, concavo-convex negative electrode, an anode, two anodes, long pressurization cylinder, cooled cathode recirculated water, anode cooling circulating water, long pressurization cylinder cooling circulating water, carrier wind, electrode catalyst core, insulator, dc source, high-voltage pulse power source, high-voltage pulse device; Described carrier wind comprises: first via carrier wind, the second road carrier wind, the 3rd road carrier wind, the 4th road carrier wind, the 5th road carrier wind; Described hollow cathode base, concavo-convex negative electrode, an anode, two anodes, long pressurization cylinder are arranged in order and symmetrical, the negative electrode of described dc source is connected with the hollow cathode base of side, concavo-convex negative electrode, and the anode of dc source is connected with an anode of homonymy, two anodes; The negative electrode of described high-voltage pulse power source is connected with the hollow cathode base of opposite side, concavo-convex negative electrode, and the anode of high-voltage dc pulse power is connected with an anode of homonymy, two anodes; Cellular electrode catalyst core is inserted in plasmatorch catalyst converter central authorities, and one end is connected with high-voltage pulse device by insulator; The hollow cathode base of cooled cathode circulating water flow through the left and right sides, concavo-convex negative electrode, anode cooling circulating water flows through an anode, two anodes of the left and right sides, the translateral long pressurization cylinder of long pressurization cylinder cooling circulating water stream.
Power plant carbon oxygen cycle utilizes technique, comprises following methods:
Step one: open long-distance anti-explosion master control monitoring system switch, and open each system switching by operational procedure successively;
Step 2: adopt carrier wind mode of delivering coal reaction raw materials to be sent into plasmatorch catalyst converter and carry out catalysis, by the reactant after catalysis and the same O of feeding power economized boiler
2thorough combustion;
Step 3: the flue gas producing 500-1000 DEG C after power economized boiler burning, a part returns CO
2return channel recycles; Another part send CO after dedusting, denitration, desulfurization
2cO isolated by trapping separator
2, the N that desulphurization denitration produces
2through smoke stack emission, CO
2the isolated CO of trapping separator
2send degasifier deoxidation, O
2after heat exchanger heats, send power economized boiler to burn, carbon send carbon recover to reclaim, and does carbon black and sells, or recycle for device of delivering coal.
As preferably, carrier wind type of delivering coal is CO
2deliver coal powder or CO
2+ steam is delivered coal powder, O
2to deliver coal powder; Preferred first via carrier wind, the second road carrier wind, the 3rd road carrier wind are CO
2deliver coal powder, the 4th road carrier wind, the 5th road carrier wind are that steam is delivered coal powder; Or preferably first via carrier wind is CO
2deliver coal powder, the second road carrier wind, the 3rd road carrier wind, the 4th road carrier wind are that steam is delivered coal powder, and the 5th road carrier wind is CO
2+ steam is delivered coal; Or preferably first via carrier wind, the second road carrier wind, the 3rd road carrier wind are CO
2+ steam is delivered coal powder, and the 4th road carrier wind, the 5th road carrier wind are for sending O
2; Described carrier wind blast is preferred: first via carrier wind>=1KPa, second road carrier wind>=5KPa, the 3rd road carrier wind>=10KPa, the 4th road carrier wind>=15KPa, the 5th road carrier wind>=20KPa.
As preferably, be provided with one or more layers combustion district in power economized boiler, the temperature in power economized boiler reaches 1300 DEG C.
As preferably, heat exchanger utilizes the flue gas of 500-1000 DEG C by O with heat transfer type
2be heated to more than 80 DEG C, the O after preheating
2feeding power economized boiler burns.
As preferably, CO
2power economized boiler 500-1000 DEG C of flue gas recirculations out directly return together with steam by return channel, plasmatorch catalyst converter is sent in the coal dust mixing that device of delivering coal exports and carries out catalytic conversion reaction.
As preferably, degasifier output voltage 10-120KV, overlapped high-frequency pulse 200-1600KV, the pulse power 1-500A.
Beneficial effect of the present invention is: one is low cost pure oxygen burning, and two is CO
2backflow catalysis and deoxidation recycle, and three is reduce equipment investment, and link volume of equipment 70-80%, four such as minimizing boiler and dedusting, denitration, desulfurization etc. is that to be sparing in the use of coal 45-70%, five be that the clean conversion ratio of heat energy improves more than 1 times.
Accompanying drawing explanation
Fig. 1 is the structural representation that the power plant carbon oxygen cycle of embodiment 1 utilizes device;
Fig. 2 is the structural representation that the power plant carbon oxygen cycle of embodiment 2 utilizes device;
Fig. 3 is the structural representation of plasmatorch catalyst converter;
Fig. 4 is the structural representation of power economized boiler;
Fig. 5 is the structural representation of degasifier.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1: as shown in Figure 1, power plant carbon oxygen cycle utilizes device by device 17, the CO of delivering coal
2return channel 6, plasmatorch catalyst converter 1, power economized boiler 2, denitrator 5, heat exchanger 3, deduster 7, booster fan 16, air-introduced machine 8, desulfurization slag liquid 10, desulfurizing tower 11, heat exchanger 9, CO
2trapping separator 12, degasifier 14, air blast 4, carbon recover 15, long-distance anti-explosion master control detection system 18, chimney 13 form; Described plasmatorch catalyst converter 1 one end connects deliver coal device 17, CO
2return channel 6, the other end is communicated with the gas approach of power economized boiler 2 bottom, and power economized boiler 2 top is provided with outlet, the outlet on top and CO
2return channel 6 is communicated with, and power economized boiler 2 bottom is also provided with exhanst gas outlet, and the exhanst gas outlet of bottom is connected with the gas approach flue of heat exchanger 3; The exhanst gas outlet flue of described heat exchanger 3 and CO
2trapping separator 12 connects, CO
2trapping separator 12 is connected with the oxygen feeder of heat exchanger 3 by degasifier 14, air blast 4, and degasifier 14 is connected with carbon recover 15, CO
2trapping separator 12 is also connected with chimney 13; Described long-distance anti-explosion master control detection system 18 is connected with each device and detects in real time; Described denitrator 5 is arranged on outlet and the CO on power economized boiler 2 top
2between return channel 6; The exhanst gas outlet flue of described heat exchanger 3 is successively by deduster 7, air-introduced machine 8, desulfurization slag liquid 10, desulfurizing tower 11, heat exchanger 9 and CO
2trapping separator 12 connects.
Power plant carbon oxygen cycle utilizes technological principle chemical conversion formula to be:
CO
2+ C (coal)---2CO (1)
C (coal)+H
2o---CO+H
2(2)
CO+H
2O——CO
2+H
2(3)
2CO+O
2——2CO
2(4)
C (coal)+O
2---CO
2(5)
CO
2---C (carbon)+O
2(6)
Concrete operations comprise:
The first step: open long-distance anti-explosion master control monitoring system 18 switch.And open each system switching by operational procedure successively;
Second step: start CO
2return channel 6 uses CO
2the coal dust of delivering coal in device 17 is sent into the catalysis of plasmatorch catalyst converter 1, completes CO
2+ C (coal)---CO react, CO is sent into power economized boiler 2 with and O
2thorough combustion;
3rd step: 500-1000 DEG C of flue gas CO after power economized boiler 2 burns
2a part returns CO
2return channel 6 recycles; A part send CO after dedusting, denitration, desulfurization
2trapping separator 12 is separated, N
2chimney 13 is sent to discharge, CO
2send degasifier 14 deoxidation, O
2heat more than 80 DEG C through heat exchanger 3, send power economized boiler 2 to burn.Carbon send carbon recover 15 to reclaim, and does carbon black and sells, or recycle for device 17 of delivering coal.
As shown in Figure 3, plasmatorch catalyst converter 1 comprises: hollow cathode base 22, concavo-convex negative electrode 23, anode 24, two anode 25, long pressurization cylinder 26, cooled cathode recirculated water 27, anode cooling circulating water 28, long pressurization cylinder cooling circulating water 29, carrier wind, electrode catalyst core 35, insulator 36, dc source 37, high-voltage pulse power source 38, high-voltage pulse device 39; Described carrier wind comprises: first via carrier wind 30, second road carrier wind 31, the 3rd road carrier wind 32, the 4th road carrier wind 33, the 5th road carrier wind 34; Described hollow cathode base 22, concavo-convex negative electrode 23, anode 24, two anode 25, long pressurization cylinder 26 are arranged in order and symmetrical, the negative electrode of described dc source 37 is connected with the hollow cathode base 22 of side, concavo-convex negative electrode 23, and the anode of dc source 37 is connected with anode 24, two anode 25 of homonymy; The negative electrode of described high-voltage pulse power source 38 is connected with the hollow cathode base 22 of opposite side, concavo-convex negative electrode 23, and the anode of high-voltage dc pulse power 38 is connected with anode 24, two anode 25 of homonymy; Cellular electrode catalyst core 35 is inserted in plasmatorch catalyst converter central authorities, and one end is connected with high-voltage pulse device 39 by insulator 36; Cooled cathode recirculated water 27 flows through hollow cathode base 22, the concavo-convex negative electrode 23 of the left and right sides, and anode cooling circulating water 28 flows through anode 24, two anode 25 of the left and right sides, and long pressurization cylinder cooling circulating water 29 flows translateral long pressurization cylinder 26; Long pressurization cylinder 26 is communicated with the gas approach of lower end, energy saving pot furnace wall 40.
Wherein, carrier wind blast is preferred: first via carrier wind 30 >=1KPa, second road carrier wind 31 >=5KPa, the 3rd road carrier wind 32 >=10KPa, the 4th road carrier wind 33 >=15KPa, the 5th road carrier wind 34 >=20KPa.
Take the multiple collocation of multichannel carrier wind to deliver coal mode, preferred first via carrier wind 30, second road carrier wind 31, the 3rd road carrier wind 32 are CO
2to deliver coal powder; 4th road carrier wind 33, the 5th road carrier wind 34 to be delivered coal powder for steam.
Electrode catalyst core 35 is cellular or web plate shape, by one or more groups arrangement, and the preferred resistance to acids and bases stainless steel of material.
The chemical conversion formula that mainly completes in long-distance anti-explosion plasma catalytic converter is:
CO
2+C——2CO
C+H
2O——CO+H
2
CO+H
2O——CO
2+H
2
During concrete operations:
The first step: the switch opening cooled cathode recirculated water 27, anode cooling circulating water 28;
Second step: open dc source 37, high-voltage pulse power source 38, high-voltage pulse device 39 switch;
3rd step, open first via carrier wind 30, second road carrier wind 31, the 3rd road carrier wind 32, the 4th road carrier wind 33, the 5th road carrier wind 34 switch;
As shown in Figure 4, power economized boiler 2 comprises: send oxygen device 42, lower primary zone 43, Zhong Ciran district 44, upper booster zone 45; Described lower primary zone 43, Zhong Ciran district 44, upper booster zone 45 are located in the combustion chamber 41 of power economized boiler 2 from the bottom up successively, send oxygen device 42 to be located at power economized boiler 2 bottom and are connected with the oxygen exhaust of heat exchanger 3.
Multilayer combustion district is arranged with and is beneficial to Thorough combustion, and significantly improves the clean conversion ratio of heat energy.
Power economized boiler 2 mainly completes chemical conversion formula:
2CO+O
2——2CO
2
C+O
2——CO
2
During concrete operations:
The first step: open and send oxygen device 42 switch to send O in power economized boiler 2
2, oxygen deliverng pipe road junction is 1 layer or multilayer, every layer one or more send O
2entrance.
Second step: open lower primary zone 43, Zhong Ciran district 44, upper booster zone 45, plasmatorch catalyst converter 1 power switch successively, by CO+C (coal)+H
2the gas of O (steam) catalytic reaction is sent in power economized boiler 2 and the O sending oxygen device 42 to send here
2burning.
As shown in Figure 5, degasifier 14 comprises: O
2air accumulator 46, high frequency waveforms device 47, high frequency pulse power supply 48, degasifier shell 49, insulator 50, electrode cores 51, explosion-proof sensor 52, infrared sensing viewer 53; Be connected with carbon recover 15 bottom described degasifier shell 49, degasifier shell 49 bottom and CO
2trapping separator 12 connects, degasifier shell 49 top and O
2air accumulator 46 connects, and degasifier shell 49 top is provided with insulator 50, and insulator 50 is provided with electrode cores 51, and one end that insulator 50 stretches out degasifier shell outside is connected with high frequency waveforms device 47, and high frequency pulse power supply 48 is connected with high frequency waveforms device 47; Described explosion-proof sensor 52, infrared sensing viewer 53 are located at the top and bottom of degasifier 14 respectively, detect deoxidation process.
Degasifier shell 49 and electrode cores 51 preferably material are coat the stainless steel of catalyst, and the preferred Ni of catalyst is main rare earth element, or NiFe is main rare earth element; Electrode cores 51 is cellular or web plate shape, is rearranged by one or more.
Degasifier 14 mainly completes chemical conversion formula: CO
2---C (carbon)+O
2
During concrete operations:
The first step: open high frequency pulse power supply 48 and CO successively
2trapping separator 12 switch, and explosion-proof sensor 52 and infrared sensing viewer 53 switch;
Second step: CO
2c and O is become through electrode cores 51 catalytic decomposition
2, C send carbon recover 15, O
2send O
2air accumulator 46, burns for power economized boiler 2.
Embodiment 2: as shown in Figure 2, power plant carbon oxygen cycle utilizes device by device 17, the CO of delivering coal
2return channel 6, plasmatorch catalyst converter 1, power economized boiler 2, heat exchanger 3, booster fan 16, CO
2trapping separator 12, degasifier 14, air blast 4, carbon recover 15, long-distance anti-explosion master control detection system 18, steam case 19, clarifier 20, sulfur-based compound fertilizer production line 21 form; Described plasmatorch catalyst converter 1 one end connects device 17 of delivering coal, and the other end is communicated with the gas approach of power economized boiler 2 bottom, and power economized boiler 2 top is provided with outlet, the outlet on top and CO
2return channel 6 is communicated with, and power economized boiler 2 bottom is provided with exhanst gas outlet, and the exhanst gas outlet of bottom is connected with the gas approach flue of heat exchanger 3; Described steam case 19 is communicated with power economized boiler 2 and booster fan 16, and booster fan 16 is communicated with CO
2return channel 6 and plasmatorch catalyst converter 1; Described clarifier 20 is communicated with exhanst gas outlet flue and the CO of heat exchanger 3
2trapping separator 12, described clarifier 20 is also connected with sulfur-based compound fertilizer production line 21; CO
2trapping separator 12 is connected with the oxygen feeder of heat exchanger 3 by degasifier 14, air blast 4, and degasifier 14 is connected with carbon recover 15.
The device of the present embodiment is by after sending steam case 19 and CO by the steam of power economized boiler 2
2together the coal dust of device 17 of delivering coal is sent into plasmatorch catalyst converter 1 and carry out catalyzed conversion.Key reaction formula is:
CO
2+ C (coal)---2CO (1)
C (coal)+H
2o---CO+H
2(2)
CO+H
2O——CO
2+H
2(3)
After completing above-mentioned reaction, sent by flue gas clarifier 20 to carry out dedusting, denitration, desulfurization integrated purified treatment, dirt nitre sulfur material send sulfur-based compound fertilizer production line 21 to produce fertilizer, CO
2send CO
2trapping separator 12 recycles.
This device achieves carbon resource, oxygen resource, the recycling and recycling of dirt sulphur nitre material, and reduces the discharge of the pollutants such as flue gas, decrease the generation of nitrogen oxide while energy-conserving and environment-protective.
The know-why being specific embodiments of the invention and using described in above, if the change done according to conception of the present invention, its function produced do not exceed that description and accompanying drawing contain yet spiritual time, must protection scope of the present invention be belonged to.
Claims (14)
1. power plant carbon oxygen cycle utilizes device, it is characterized in that comprising: device of delivering coal (17), CO
2return channel (6), plasmatorch catalyst converter (1), power economized boiler (2), heat exchanger (3), CO
2trapping separator (12), degasifier (14), long-distance anti-explosion master control detection system (18), chimney (13); Described plasmatorch catalyst converter (1) one end connects deliver coal device (17), CO
2return channel (6), the other end is communicated with the gas approach of power economized boiler (2) bottom, and power economized boiler (2) top is provided with outlet, the outlet on top and CO
2return channel (6) is communicated with, and power economized boiler (2) bottom is also provided with exhanst gas outlet, and the exhanst gas outlet of bottom is connected with the gas approach flue of heat exchanger (3); The exhanst gas outlet flue of described heat exchanger (3) and CO
2trapping separator (12) connects, CO
2trapping separator (12) is connected with the oxygen feeder of heat exchanger (3) by degasifier (14), air blast (4), and degasifier (14) is connected with carbon recover (15), CO
2trapping separator (12) is also connected with chimney (13); Described long-distance anti-explosion master control detection system (18) is connected with each device and detects in real time.
2. power plant carbon oxygen cycle according to claim 1 utilizes device, and it is characterized in that, also include system for desulfuration and denitration, described system for desulfuration and denitration comprises desulfurizer, denitrification apparatus; Desulfurizer is communicated in exhanst gas outlet flue and the CO of heat exchanger (3)
2between trapping separator (12), described denitrification apparatus is arranged on outlet and the CO on power economized boiler (2) top
2between return channel (6); Described desulfurizer comprises: deduster (7), air-introduced machine (8), desulfurization slag liquid (10), desulfurizing tower (11), heat exchanger (9), and the exhanst gas outlet flue of described heat exchanger (3) is successively by deduster (7), air-introduced machine (8), desulfurization slag liquid (10), desulfurizing tower (11), heat exchanger (9) and CO
2trapping separator (12) connects.
3. power plant carbon oxygen cycle according to claim 1 utilizes device, it is characterized in that, also include steam case (19), clarifier (20), sulfur-based compound fertilizer production line (21), described steam case (19) is communicated with power economized boiler (2) and booster fan (16), and booster fan (16) is communicated with CO
2return channel (6) and plasmatorch catalyst converter (1); Described clarifier (20) is communicated with exhanst gas outlet flue and the CO of heat exchanger (3)
2trapping separator (12), described clarifier (20) is also connected with sulfur-based compound fertilizer production line (21).
4. power plant carbon oxygen cycle according to claim 1 utilizes device, it is characterized in that, described plasmatorch catalyst converter (1) comprising: hollow cathode base (22), concavo-convex negative electrode (23), one anode (24), two anodes (25), long pressurization cylinder (26), cooled cathode recirculated water (27), anode cooling circulating water (28), long pressurization cylinder cooling circulating water (29), carrier wind, electrode catalyst core (35), insulator (36), dc source (37), high-voltage pulse power source (38), high-voltage pulse device (39), described carrier wind comprises: first via carrier wind (30), the second road carrier wind (31), the 3rd road carrier wind (32), the 4th road carrier wind (33), the 5th road carrier wind (34), described hollow cathode base (22), concavo-convex negative electrode (23), an anode (24), two anodes (25), long pressurization cylinder (26) are arranged in order and symmetrical, the negative electrode of described dc source (37) is connected with the hollow cathode base (22) of side, concavo-convex negative electrode (23), and the anode of dc source (37) is connected with an anode (24) of homonymy, two anodes (25), the negative electrode of described high-voltage pulse power source (38) is connected with the hollow cathode base (22) of opposite side, concavo-convex negative electrode (23), and the anode of high-voltage dc pulse power (38) is connected with an anode (24) of homonymy, two anodes (25), cellular electrode catalyst core (35) is inserted in plasmatorch catalyst converter (1) central authorities, and one end is connected with high-voltage pulse device (39) by insulator (36), cooled cathode recirculated water (27) flows through the hollow cathode base (22) of the left and right sides, concavo-convex negative electrode (23), anode cooling circulating water (28) flows through an anode (24), two anodes (25) of the left and right sides, and long pressurization cylinder cooling circulating water (29) flows translateral long pressurization cylinder (26).
5. power plant carbon oxygen cycle utilizes technique, it is characterized in that comprising following methods:
Step one: open long-distance anti-explosion master control monitoring system (18) switch, and open each system switching by operational procedure successively;
Step 2: adopt carrier wind mode of delivering coal reaction raw materials to be sent into plasmatorch catalyst converter (1) and carry out catalysis, by the reactant after catalysis and feeding power economized boiler (2) same to O
2thorough combustion;
Step 3: the flue gas producing 500-1000 DEG C after power economized boiler (2) burning, a part returns CO
2return channel (6) recycles; Another part send CO after dedusting, denitration, desulfurization
2cO is isolated in trapping separator (12)
2, the N that desulphurization denitration produces
2through chimney (13) discharge, CO
2trapping separator (12) isolated CO
2send degasifier (14) deoxidation, O
2after heat exchanger (3) heating, send power economized boiler (2) to burn, carbon send carbon recover (15) to reclaim, and does carbon black and sells, or recycle for device (17) of delivering coal.
6. power plant carbon oxygen cycle according to claim 5 utilizes technique, it is characterized in that, carrier wind type of delivering coal is CO
2deliver coal powder or CO
2+ steam is delivered coal powder, O
2to deliver coal powder.
7. power plant carbon oxygen cycle according to claim 6 utilizes technique, it is characterized in that, described carrier wind comprises: first via carrier wind (30), the second road carrier wind (31), the 3rd road carrier wind (32), the 4th road carrier wind (33), the 5th road carrier wind (34); First via carrier wind (30), the second road carrier wind (31), the 3rd road carrier wind (32) are CO
2deliver coal powder, the 4th road carrier wind (33), the 5th road carrier wind (34) to be delivered coal powder for steam.
8. power plant carbon oxygen cycle according to claim 6 utilizes technique, it is characterized in that, described carrier wind comprises: first via carrier wind (30), the second road carrier wind (31), the 3rd road carrier wind (32), the 4th road carrier wind (33), the 5th road carrier wind (34); First via carrier wind (30) is CO
2deliver coal powder, the second road carrier wind (31), the 3rd road carrier wind (32), the 4th road carrier wind (33) to be delivered coal powder for steam, and the 5th road carrier wind (34) is CO
2+ steam is delivered coal.
9. power plant carbon oxygen cycle according to claim 6 utilizes technique, it is characterized in that, described carrier wind comprises: first via carrier wind (30), the second road carrier wind (31), the 3rd road carrier wind (32), the 4th road carrier wind (33), the 5th road carrier wind (34); First via carrier wind (30), the second road carrier wind (31), the 3rd road carrier wind (32) are CO
2+ steam is delivered coal powder, and the 4th road carrier wind (33), the 5th road carrier wind (34) are for sending O
2.
10. the power plant carbon oxygen cycle according to the arbitrary claim of claim 7-9 utilizes technique, it is characterized in that, carrier wind blast is: first via carrier wind (30) >=1KPa, second road carrier wind (31) >=5KPa, 3rd road carrier wind (32) >=10KPa, 4th road carrier wind (33) >=15KPa, the 5th road carrier wind (34) >=20KPa.
11. power plant carbon oxygen cycles according to claim 5 utilize technique, it is characterized in that, be provided with one or more layers combustion district in power economized boiler (2), the temperature in power economized boiler (2) reaches 1300 DEG C.
12. power plant carbon oxygen cycles according to claim 5 utilize technique, it is characterized in that, heat exchanger (3) utilizes the flue gas of 500-1000 DEG C by O with heat transfer type
2be heated to more than 80 DEG C, the O after preheating
2send into power economized boiler (2) burning.
13. power plant carbon oxygen cycles according to claim 5 utilize technique, it is characterized in that, CO
2power economized boiler (2) 500-1000 DEG C of flue gas recirculations out directly return together with steam by return channel (6), plasmatorch catalyst converter (1) is sent in the coal dust mixing that device of delivering coal (17) exports and carries out catalytic conversion reaction.
14. power plant carbon oxygen cycles according to claim 5 utilize technique, it is characterized in that, degasifier (14) output voltage 10-120KV, overlapped high-frequency pulse 200-1600KV, the pulse power 1-500A.
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| CN103742891A (en) * | 2014-01-09 | 2014-04-23 | 程礼华 | Multi-unit combined power generation process and multi-unit combined power generation device |
| CN104614006B (en) * | 2014-12-25 | 2017-05-17 | 吉林省电力科学研究院有限公司 | Method for measuring CO2 emission factors of power station boiler |
| CN105176584B (en) * | 2015-10-10 | 2017-10-17 | 程礼华 | High alumina coal IGCC generatings graphene alloy combined production device and its technique |
| CN105666904B (en) * | 2015-12-21 | 2017-11-17 | 程礼华 | The technique and its device of graphene tire are produced in a kind of coproduction |
| CN106765064A (en) * | 2017-01-09 | 2017-05-31 | 泉州恒兴能源节能技术有限公司 | A kind of reduction pollutant discharge of flame heating furnace |
| CN107228356B (en) * | 2017-07-06 | 2023-05-30 | 山西大学 | Automatic stable combustion system for opposite-flushing boiler |
| CN107246607B (en) * | 2017-07-06 | 2023-05-30 | 山西大学 | Automatic stable combustion system for four-corner tangential boiler |
| CN113357625A (en) * | 2021-05-27 | 2021-09-07 | 民勤县再源之星节能环保科技开发有限公司 | Large and medium boiler flue gas closed cycle utilizes system |
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