CN210604543U - Test device capable of simultaneously testing desulfurization and denitration performance of active coke - Google Patents
Test device capable of simultaneously testing desulfurization and denitration performance of active coke Download PDFInfo
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- CN210604543U CN210604543U CN201921004979.4U CN201921004979U CN210604543U CN 210604543 U CN210604543 U CN 210604543U CN 201921004979 U CN201921004979 U CN 201921004979U CN 210604543 U CN210604543 U CN 210604543U
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 89
- 230000023556 desulfurization Effects 0.000 title claims abstract description 89
- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 239000000571 coke Substances 0.000 title claims abstract description 43
- 239000007789 gas Substances 0.000 claims abstract description 129
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
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- 238000001514 detection method Methods 0.000 claims description 18
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- 238000005485 electric heating Methods 0.000 claims description 5
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 29
- 239000000203 mixture Substances 0.000 abstract description 7
- 229910021529 ammonia Inorganic materials 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 18
- 239000003546 flue gas Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000011069 regeneration method Methods 0.000 description 8
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- 238000000746 purification Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- 238000011049 filling Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model relates to a but test active burnt test device of desulfurization and denitration performance simultaneously, this test device include test gas configuration system, SOx/NOx control reactor and gaseous composition detecting system, and test gas configuration system includes ammonia supply pipeline, first nitrogen gas supply pipeline, NO supply pipeline, SO2The device comprises a supply pipeline, an oxygen supply pipeline, a gas mixer and a steam supply mechanism for mixing steam into the gas mixer, wherein the gas mixer is connected with the desulfurization and denitrification reactor through a mixed gas pipeline, and the mixed gas pipeline is provided with a post pipeline heating unit for heating the mixed gas pipeline so as to liquefy the water in the pipeline. The utility model can be used in one testThe desulfurization and denitrification performance of the active coke is tested, the testing time is obviously shortened, and SO simultaneously exists in the testing gas2And nitrogen oxide, more press close to engineering reality, can demonstrate active burnt SOx/NOx control performance more accurately.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment, concretely relates to test device that can test active burnt desulfurization and denitration performance simultaneously.
Background
The desulfurization and denitrification technology of the active coke utilizes the adsorption and catalysis functions of the active coke, and can remove SO2And nitrogen oxides, and can also remove smoke dust particles, mercury, dioxin, furan, heavy metals, volatile organic compounds and other trace elements in the flue gas at the same time, and recover sulfur resources. The method has the advantages of simple process, low cost, resource utilization and the like, can avoid the series construction of a purification device caused by different pollutants in the flue gas, and is suitable for purifying sintering pellet flue gas, coal-fired flue gas, gas flue gas, waste incineration flue gas and the like. The active coke is the most important consumable material in the active coke flue gas purification system, and has large consumption and high price; the desulfurization and denitrification performance of the active coke is effective to a flue gas purification systemThere is a significant direct impact on operating and running costs. The complete testing device and method for the desulfurization and denitrification performance of the active coke are established, the desulfurization and denitrification performance of the active coke is accurately and rapidly evaluated, and the device and method play a significant role in stable operation of an active coke desulfurization and denitrification system.
At present, the following problems exist in the device and the method for testing the desulfurization and denitrification performance of the activated coke:
chinese patent application CN200910113055.2 discloses a method and apparatus for detecting the activity of a flue gas denitration catalyst, which aims at the detection and evaluation of the denitration performance of the catalyst, and the detection of the desulfurization performance of active coke cannot be performed; the multifunctional test device for flue gas purification disclosed in the Chinese patent application CN201120299729.5 can test the performances of desulfurization, dust removal, denitration and heavy metal removal, but the test flue gas is generated by a coal-fired water heater, and the components of the flue gas are unstable; chinese patent application CN201410247416.3 discloses a method and a device for testing the desulfurization and denitration performance of active coke, which provides a device and a method for testing and characterizing the desulfurization and denitration performance of active coke respectively, but in the patent, the desulfurization test and the denitration test are carried out separately, the flue gas component does not contain nitrogen oxide during the desulfurization test, the flue gas component does not contain SO2 during the denitration test, and the flue gas component contains SO during the desulfurization and denitration process2The actual conditions of the nitrogen oxides are not consistent, the desulfurization and denitrification performance of the active coke cannot be accurately reflected, and the separate testing of the desulfurization and denitrification performance means that more time is required for the test.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a but test device of simultaneous test active burnt desulfurization and denitration performance can solve prior art's partial defect at least.
The embodiment of the utility model provides a but test active burnt desulfurization and denitration performance's test device simultaneously, including test gas configuration system, SOx/NOx control reactor and gas composition detecting system, test gas configuration system includes ammonia supply pipeline, first nitrogen gas supply pipeline, NO supply pipeline, SO2Supply line and oxygen supply line, thereforThe test gas distribution system further comprises a gas mixer and a steam supply mechanism for mixing steam into the gas mixer, wherein the first nitrogen supply pipeline, the NO supply pipeline and the SO supply pipeline are connected with the gas mixer2The supply pipeline and the oxygen supply pipeline are both connected with an air inlet of the gas mixer, the gas mixer is connected with the desulfurization and denitrification reactor through a mixed gas pipeline, and the mixed gas pipeline is provided with a post pipeline heating unit for heating the mixed gas pipeline so as to liquefy water in the pipeline.
In one embodiment, the steam supply mechanism includes a water supply unit and a water supply line connecting the water supply unit and the gas mixer, the water supply line is provided with a water supply valve, and a pre-line heating unit for liquefying water in the water supply line is disposed at least in a water supply pipe body between the water supply valve and the gas mixer.
In one embodiment, the front pipeline heating unit and the rear pipeline heating unit are electric heating heat tracing bands laid on the corresponding pipes.
As one of the embodiments, the water supply unit includes a peristaltic type syringe pump.
In one embodiment, the ammonia gas supply line is connected to the mixed gas line.
In one embodiment, the desulfurization and denitrification reactor is connected to the gas component detection system through a main exhaust pipe, a branch exhaust pipe is connected to the main exhaust pipe, and the branch exhaust pipe and a gas outlet pipe of the gas component detection system are connected to a tail gas absorption unit.
In one embodiment, the test gas distribution system further comprises a second nitrogen supply pipeline, and the second nitrogen supply pipeline is connected with the gas inlet of the gas mixer or directly connected with the desulfurization and denitrification reactor.
As one embodiment, the first nitrogen gas supply line is connected to a high purity nitrogen gas source, and the second nitrogen gas supply line is connected to a normal industrial nitrogen gas source.
The embodiment of the utility model provides a following beneficial effect has at least:
the utility model discloses in, guarantee through vapor supply mechanism that supply water gets into gas mixer with the vapor form to and heat so that intraductal aqueous vapor ization through rearmounted pipeline heating unit to the gas mixture pipeline, avoid NH3With SO2Generated by mixing under the condition of containing liquid water (NH)4)2SO3And the pipeline is blocked, so that the testing device can simultaneously test the desulfurization and denitration performance of the active coke. The utility model discloses can be in the SOx/NOx control performance of the simultaneous test active burnt in an experiment, showing and shortening test time to, there is SO in the test gas simultaneously2And nitrogen oxide, more press close to engineering reality, can demonstrate active burnt SOx/NOx control performance more accurately.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is the embodiment of the utility model provides a can test active burnt desulfurization and denitration performance's test device's that embodiment provides structural schematic diagram simultaneously.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in FIG. 1, the embodiment of the utility model provides a but test device of active burnt desulfurization and denitration performance simultaneously, including experimental gaseous configuration system, SOx/NOx control reactor 1 and gaseous one-tenthA test gas distribution system 5 including an ammonia gas supply line 21, a first nitrogen gas supply line 22, an NO supply line 23, and SO2A supply line 24 and an oxygen supply line 25, the test gas distribution system further comprising a gas mixer 28 and a water vapor supply mechanism for mixing water vapor into the gas mixer 28, the first nitrogen supply line 22, the NO supply line 23, and the SO2The supply pipeline 24 and the oxygen supply pipeline 25 are both connected with the gas inlet of the gas mixer 28, the gas mixer 28 is connected with the desulfurization and denitrification reactor 1 through a mixed gas pipeline 29, and the mixed gas pipeline 29 is provided with a post-pipeline heating unit 3 for heating the mixed gas pipeline to gasify water in the pipeline.
In the above-mentioned experimental apparatus, the desulfurization and denitrification reactor 1 can adopt a common reaction furnace in the technical field of activated coke desulfurization and denitrification performance test, and the detailed structure thereof is not described herein. In this embodiment, the desulfurization and denitrification reactor 1 preferably adopts a precise temperature-control electric heating type structure, and preferably adopts three-stage heating in the upper, middle and lower sections; the working temperature of the desulfurization and denitrification reactor 1 can be adjusted within the range of 100-550 +/-5 ℃, and the conditions of active coke desulfurization reaction, denitrification reaction, regeneration reaction and the like can be well simulated.
The gas component detection system 5 preferably uses a high-precision online flue gas analyzer, and can detect gas components and concentration online and record data. Of course, other gas composition detectors are suitable for use in this embodiment. It is understood that the flue gas outlet of the desulfurization and denitrification reactor 1 communicates with the flue gas inlet of the gas component detection system 5, for example, as shown in fig. 1, the desulfurization and denitrification reactor 1 is connected with the gas component detection system 5 through the main exhaust pipe.
The ammonia gas supply pipeline 21 can supply ammonia gas to the desulfurization and denitrification reactor 1, an ammonia gas source and a flow meter 202 are arranged on the ammonia gas supply pipeline 21, a control valve 201 and a one-way valve 203 are further arranged on the ammonia gas supply pipeline 21, the control valve 201 can be positioned between the ammonia gas source and the flow meter 202, and the one-way valve 203 is positioned on the outlet side of the flow meter 202;
the first nitrogen supply line 22 may supply nitrogen to the gas mixer 28/the desulfurization and denitrification reactor 1, the first nitrogen supply line 22 is provided with a nitrogen source and a flow meter 202, and the first nitrogen supply line 22 is further provided with a control valve 201 and a check valve 203;
the NO supply line 23 may supply the nitric oxide gas to the gas mixer 28/the desulfurization and denitrification reactor 1, the NO supply line 23 is provided with an NO source and a flow meter 202, and the NO supply line 23 is further provided with a control valve 201 and a check valve 203;
the above SO2The supply line 24 may supply SO to the gas mixer 28/SOx reactor 12Gas, the SO2SO is provided on the supply line 242Source and flow meter 202, further at the SO2A control valve 201 and a one-way valve 203 are arranged on the supply pipeline 24;
the oxygen supply line 25 may supply oxygen to the gas mixer 28/the desulfurization/denitrification reactor 1, and the oxygen supply line 25 may be provided with an oxygen source and a flow meter 202, and the oxygen supply line 25 may be further provided with a control valve 201 and a check valve 203.
The gas sources preferably adopt high-purity gas (the gas purity is more than 99.999%), and preferably adopt steel cylinders for storage, so as to ensure the stability of the components of the test gas; the flow meters 202 preferably employ high-precision mass flow meters 202, and the flow rates of various gases can be precisely controlled.
In one embodiment, the water vapor supply mechanism is directly connected to the water vapor source. In another embodiment, the water vapor supply mechanism includes a water supply unit 27 and a water supply line connecting the water supply unit 27 and the gas mixer 28, the water supply line is provided with a water supply valve, water is heated in the water supply line to enter the gas mixer 28 in a gaseous state, and accordingly, at least a water supply pipe body between the water supply valve and the gas mixer 28 is provided with a pre-line heating unit 4 for liquefying water in the pipe.
Generally, as shown in FIG. 1, the first nitrogen supply line 22, the NO supply line 23, and the SO2The supply line 24, the oxygen supply line 25 and the water supply line are mixed in parallel with the above-mentioned gasesThe combiner 28 is connected. The inlet side pipe of the gas mixer 28 comprises a main gas supply pipe, a first nitrogen gas supply pipe 22, a NO supply pipe 23, and SO2The supply line 24, the oxygen supply line 25 and the water supply line are all connected to the main gas supply line, and the preposed line heating unit 4 can be disposed on the water supply line and the main gas supply line; when conditions permit, the other air supply lines may be provided with the pre-line heating unit 4.
In this embodiment, preferably, the preposed pipeline heating unit 4 adopts an electric heating type heat tracing band, and heats the pipeline by laying on the corresponding pipe body, so that the heating effect is good, the arrangement is easy, and the water in the pipeline is ensured to exist in a water vapor form. The working temperature of the preposed pipeline heating unit 4 can be controlled within the range of 120-150 ℃. Similarly, the rear pipeline heating unit 3 may also be an electric heating type heat tracing band laid on the corresponding pipe body.
Preferably, the water supply unit 27 includes a peristaltic syringe pump 27, and the peristaltic syringe pump 27 can precisely control the flow rate of the injected water, so as to precisely control the flow rate of the supplied water.
The test apparatus provided in this embodiment ensures that the water supplied by the water vapor supply mechanism enters the gas mixer 28 in the form of water vapor, and heats the mixed gas pipeline 29 by the post-pipeline heating unit 3 to make the water in the pipeline fluidized, thereby avoiding NH3With SO2Generated by mixing under the condition of containing liquid water (NH)4)2SO3And the pipeline is blocked, so that the testing device can simultaneously test the desulfurization and denitration performance of the active coke. The test device can simultaneously test the desulfurization and denitrification performance of the active coke in one test, obviously shortens the test time, and simultaneously has SO in the test gas2And nitrogen oxide, more press close to engineering reality, can demonstrate active burnt SOx/NOx control performance more accurately.
Obviously, the ammonia gas supply line 21 described above may be connected to the gas inlet of the gas mixer 28. In this embodiment, however, it is preferred that the ammonia gas supply line 21, as shown in FIG. 1, is connected by the mixed gas line 29, i.e., mixed in at the outlet side of the gas mixer 28, and the other gasMixing the raw materials and the mixture before entering a desulfurization and denitrification reactor 1; the arrangement can reduce NH as much as possible3、SO2And the direct contact time of water, further reducing the generation of (NH)4)2SO3And the condition of blocking the pipeline ensures the smooth proceeding of the desulfurization reaction and the denitration reaction of the test device.
Further, as shown in fig. 1, the testing apparatus further includes a tail gas absorption system, which can absorb the tail gas discharged from the desulfurization and denitrification reactor 1 and the gas component detection system 5, thereby ensuring environmental protection. Preferably, as shown in fig. 1, in the case where the desulfurization and denitrification reactor 1 is connected to the gas component detection system 5 through a main exhaust pipe, a branch exhaust pipe is connected to the main exhaust pipe, and the branch exhaust pipe and a gas outlet pipe of the gas component detection system 5 are both connected to the off-gas absorption unit 6. As shown in fig. 1, a gas mixture line 29 is also connected to a branch line connected to the gas component detection system 5. The tail gas absorption unit 6 can be an alkali liquor washing unit, such as a washing tank containing alkali liquor, wherein the alkali liquor can be NaOH or Na2CO3And the like.
Further optimizing the structure of the above test device, as shown in fig. 1, the test gas distribution system further includes a second nitrogen supply pipeline 26, and the second nitrogen supply pipeline 26 is connected to the gas inlet of the gas mixer 28 or directly connected to the desulfurization and denitrification reactor 1. Preferably, the second nitrogen supply pipe 26 supplies a common industrial nitrogen source to the desulfurization and denitrification reactor 1, i.e., the second nitrogen supply pipe 26 is connected to the common industrial nitrogen source. The nitrogen gas source provided in the first nitrogen gas supply line 22 is preferably a high-purity nitrogen gas source (N)2The concentration is more than 99.999%).
Example two
The embodiment of the utility model provides a still relate to the method of adopting above-mentioned test device to test active burnt desulfurization and denitration performance, include:
filling active coke into the desulfurization and denitrification reactor 1, and setting the working temperature of the desulfurization and denitrification reactor 1 to 130-170 ℃;
the first nitrogen gas supply pipeline22. The NO supply line 23, the SO2The supply pipeline 24 and the oxygen supply pipeline 25 start to supply air according to a set flow rate, and the working temperature of the rear pipeline heating unit 3 is set to 120-150 ℃; observing that the concentration of each component in the mixed gas at the inlet side of the desulfurization and denitrification reactor 1 reaches a preset value until the concentration is stable through a gas component detection system 5;
the steam supply mechanism is used for mixing the steam into the gas mixer 28, so that the humidity of the mixed gas at the inlet side of the desulfurization and denitrification reactor 1 is controlled to be 6-14%;
the ammonia gas supply pipeline 21 starts to supply gas according to a set flow;
the mixed gas passes through the active coke in the desulfurization and denitrification reactor 1, and the concentration of each component of the gas at the outlet side of the desulfurization and denitrification reactor 1 is detected and recorded by a gas component detection system 5;
keeping the gas mixture stable until the reaction time in the desulfurization and denitrification reactor 1 reaches the preset time, stopping gas supply, stopping heating the desulfurization and denitrification reactor 1, taking out the active coke in the desulfurization and denitrification reactor 1, and reinstalling the desulfurization and denitrification reactor 1;
purging residual gas in the pipeline by using nitrogen, and monitoring by using a gas component detection system 5 until the concentration of corrosive gas is less than 5 ppm;
stopping supplying air, and stopping heating the rear pipeline heating unit 3;
extracting SO recorded by the gas component detection System 52And the concentration change curve of the nitrogen oxide gas to find the SO of the stable time of the desulfurization reaction2The concentration and the concentration of the nitrogen oxides in the denitration reaction stabilization time are calculated, and the ratio of the concentration and the concentration of the two gases in the initial mixed gas is calculated, so that the desulfurization and denitration efficiency of the active coke is respectively obtained.
Further preferably, in the above test method, SO is contained in the mixed gas on the inlet side of the SOx/NOx reactor 120.05-3% by volume of O26-20% by volume of NO, 0.02-2% by volume of NO, and NH30.02-2% by volume, H2The volume fraction of O is 6-14%, and the balance is N2. Desulfurization and denitrificationThe flow rate of the mixed gas on the inlet side of the reactor 1 is within the range of 200 ml-60L/min. The test conditions are closer to the actual engineering.
EXAMPLE III
The embodiment of the utility model provides a still relate to the method of adopting above-mentioned test device to test active burnt desulfurization and denitration performance, include:
s1, filling active coke into the desulfurization and denitrification reactor 1;
s2, circularly performing N times of desulfurization and denitrification reaction-activated coke regeneration reaction treatment processes, wherein N is more than 1; wherein, the desulfurization and denitrification reaction is performed by the method provided in the second embodiment, and the specific treatment process is not described herein;
the active coke regeneration reaction comprises the following steps: introducing nitrogen into the desulfurization and denitrification reactor 1 to enable the desulfurization and denitrification reactor 1 to work at the activated coke regeneration reaction temperature until regeneration is completed;
s3, extracting recorded SO2And a nitrogen oxide gas concentration variation curve, calculating the desulfurization efficiency and the denitrification efficiency of the active coke in each desulfurization and denitrification reaction-active coke regeneration reaction cycle, wherein the calculation methods of the desulfurization efficiency and the denitrification efficiency of the active coke are described in the second embodiment above, and are not described herein again.
According to the method provided by the embodiment, the working mode of the desulfurization and denitrification reactor 1 is controlled, multiple desulfurization and denitrification reaction-regeneration cycle treatments are carried out on the active coke in one test, and the desulfurization and denitrification capability of the active coke in each desulfurization and denitrification-regeneration cycle is tested, so that the method is closer to the actual engineering and can more accurately represent the cyclic desulfurization and denitrification performance of the active coke.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Test device capable of simultaneously testing desulfurization and denitration performance of active coke comprises test gas configuration system and desulfurization and denitration reactorAnd a gas component detection system, wherein the test gas configuration system comprises an ammonia gas supply pipeline, a first nitrogen gas supply pipeline, an NO supply pipeline and an SO2Supply line and oxygen supply line, characterized by: the test gas distribution system further includes a gas mixer and a steam supply mechanism for mixing steam into the gas mixer, wherein the first nitrogen gas supply line, the NO supply line, and the SO supply line2The supply pipeline and the oxygen supply pipeline are both connected with an air inlet of the gas mixer, the gas mixer is connected with the desulfurization and denitrification reactor through a mixed gas pipeline, and the mixed gas pipeline is provided with a post pipeline heating unit for heating the mixed gas pipeline so as to liquefy water in the pipeline.
2. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 1, characterized in that: the steam supply mechanism comprises a water supply unit and a water supply pipeline connected with the water supply unit and the gas mixer, wherein a water supply valve is arranged on the water supply pipeline, and a preposed pipeline heating unit which is used for enabling water in the pipeline to be liquefied is at least configured on a water supply pipe body between the water supply valve and the gas mixer.
3. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 2, characterized in that: the front pipeline heating unit and the rear pipeline heating unit are both electric heating type heat tracing bands laid on the corresponding pipe bodies.
4. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 2, characterized in that: the water supply unit includes a peristaltic syringe pump.
5. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 1, characterized in that: the ammonia gas supply pipeline is connected to the mixed gas pipeline.
6. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 1, characterized in that: the desulfurization and denitrification reactor is connected with the gas component detection system through a main exhaust pipe, an exhaust branch pipe is connected to the upper side of the main exhaust pipe, and the exhaust branch pipe and a gas outlet pipe of the gas component detection system are both connected with a tail gas absorption unit.
7. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 1, characterized in that: the test gas configuration system further comprises a second nitrogen supply pipeline, and the second nitrogen supply pipeline is connected with the gas inlet of the gas mixer or directly connected with the desulfurization and denitrification reactor.
8. The test device capable of simultaneously testing the desulfurization and denitration performance of the activated coke according to claim 7, characterized in that: the first nitrogen supply pipeline is connected with a high-purity nitrogen source, and the second nitrogen supply pipeline is connected with a common industrial nitrogen source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004979.4U CN210604543U (en) | 2019-06-28 | 2019-06-28 | Test device capable of simultaneously testing desulfurization and denitration performance of active coke |
Applications Claiming Priority (1)
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