CN101664638A - Integrated device of electrocatalysis-adsorption, desulfurization, denitration, dust removal and heavy metal removal of fuel gas - Google Patents
Integrated device of electrocatalysis-adsorption, desulfurization, denitration, dust removal and heavy metal removal of fuel gas Download PDFInfo
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- CN101664638A CN101664638A CN200810119310A CN200810119310A CN101664638A CN 101664638 A CN101664638 A CN 101664638A CN 200810119310 A CN200810119310 A CN 200810119310A CN 200810119310 A CN200810119310 A CN 200810119310A CN 101664638 A CN101664638 A CN 101664638A
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- fuel gas
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- catalyst
- denitration
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 11
- 230000023556 desulfurization Effects 0.000 title claims abstract description 10
- 239000002737 fuel gas Substances 0.000 title claims abstract description 8
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 8
- 239000000428 dust Substances 0.000 title claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000005686 electrostatic field Effects 0.000 claims abstract description 7
- 239000002594 sorbent Substances 0.000 claims description 22
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- 230000000274 adsorptive effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000003463 adsorbent Substances 0.000 abstract description 5
- 238000003795 desorption Methods 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 14
- 239000003546 flue gas Substances 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005421 electrostatic potential Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to the technical field of a technique for desulfurization and denitration of a fuel gas, and provides an integrated device of electrocatalysis-adsorption, desulfurization, denitration, dust removal and heavy metal removal of the fuel gas. The integrated device mainly comprises a catalytic-adsorbent bed (2), electrode bars (1 and 3), a water spray pipe (4), a discharge flue (5), a water distribution baffle (6), an inlet flue (7), an acid water valve (8) and the like. The device quickly removes SO2, NOx and the like in the fuel gas by using an electrostatic field electrodepair consisting of the electrode bar (1), the electrode bar (3) and the catalytic-adsorbent bed (2), and strengthening the adsorption and desorption capacities of a catalytic adsorbent by an electrostatic field. The device has strong desulfurization and denitration capacities, and can simultaneously remove dust and heavy metals without generating secondary pollutants.
Description
The related technical field of this case is the flue gas desulfurization and denitrification technology.
-existing flue gas desulfurization and denitrification technology has multiple, and absorption method wherein is to develop method faster both at home and abroad.Its major technique characteristics are to use materials such as activated carbon, activated coke, do matrix; Supported catalyst is prepared into the adsoption catalysis material again.When flue gas by time absorption sour gas such as Nox, SO2 wherein, can also deviate from some dusts, heavy metal simultaneously.After adsoption catalyst is saturated, desorb again; Circulation makes gas cleaning repeatedly.Do not produce secondary pollution.
Above-mentioned absorption method technology has a lot of weak points: 1, sorbing material is bulky, and adsorption rate is slow.Pressure reduction when 2, flue gas is by adsorbent bed is big, the energy consumption height.3, the continuous desorption and regeneration of sorbing material demand, the sorbing material loss is big.4, desorption system complexity, operating cost is high.The application of this kind method in the system for desulfuration and denitration of big exhaust gas volumn is very restricted.
The purpose of this case provides a kind of fuel gas electro-catalysis, adsorptive desulfurization denitration dust and heavy metal removal integrated apparatus, so that solve some shortcomings in the absorption method.
Reference:
Activated carbon: 2006,3 environmental protection for electric power: 2007,2
Thermal power generation: 2005,6 environmental sciences and technology: 2004,6
Chinese patent: 1457920
The drawing explanation
Figure is the profile of device
1-electrode bar, 2-A group or B group catalyst-sorbent bed, 3-electrode bar 4-sparge pipe, 5-smokejack, 6-water distribution dividing plate, 7-flue, 8-sour water valve among the figure
Electrode bar among the figure (1) below A group/B group catalyst-sorbent bed (2), Electrode bar (3) is among A group/B group catalyst-sorbent bed (2), with electrode bar (1) consists of positive and negative stationary electrode pair; Sparge pipe (4) is at A group/B group catalytic adsorption Above the agent bed (2), water distribution dividing plate (6) is with A group and B group catalyst-sorbent Bed (2) separates, and consists of the individual from the space of A group/B group catalyst-sorbent bed (2); Flue (7) is organized the catalyst-sorbent bed in A group and B respectively with smokejack (6) (2) there is sour water valve (8) both sides under the flue (7).
With reference to the drawing explanation, further specify the operation principle of this case. When flue gas from flue (7) in the access to plant, smoke distribution is organized under the catalyst-sorbent bed (2) to A group/B, The high-voltage electrostatic field that electrode bar (1) by electronegative property consists of, in the flue gas The electronegative property such as SO2, Nox, O2, H2O; Electrode bar (3) by positively charged When the high-voltage electrostatic field that consists of is A group and B group catalyst-sorbent bed (2), quilt Oxidation-reduction reaction takes place in electric field+catalyst-sorbent absorption simultaneously. SO2+ (O2)+H2O-H2SO4 Nox+ (O2)+H2O-HNO3 Make in the flue gas SO2 NO etc. remove, the flue gas after the purification is discharged from smokejack (5).
After A group catalyst-sorbent bed (2) is saturated, its electrode bar (1) and (3) Static polarity exchange; Electrode bar (1) positively charged, electrode bar (3) is electronegative The property. Sparge pipe this moment (4) water spray adsorbs in the A group catalyst-sorbent bed (2) H2SO4, HNO3 etc. are with the material of polarity, under the effect of electrostatic field, fast from urging Desorb out in the change adsorbent, catalyst-sorbent is purified, enter next time circulation. Contain Acid waste water flows down along water distribution baffle plate (6), and with the hot flue gas exchange of rising, sour water is further After concentrating, discharge through sour water valve (8). A group catalytic adsorption bed (2) is complete like this Become the circulation of an absorption-desorption.
In like manner, by B group catalyst-sorbent bed (2), electrode bar (1), (3) and spray The electric field that water pipe (4) consists of+catalyst-sorbent bed, the SO2 in the absorption flue gas, The adsorption and desorption process of the materials such as Nox is with A group catalyst-sorbent bed (2) phase With. So iterative cycles is purified flue gas.
Electrostatic potential is 3000-20000V between electrode bar (1), (3), Electrostatic potential can be regulated and control according to flow and SO2, the NOx equal size of flue gas, with Reach best clean-up effect.
The advantage of this case: 1, the saturated and regenerative process of catalyst-sorbent, just can circulate in position.2, electrostatic field+catalyst-sorbent to SO2 the OR speed of catalysis absorption of Nox etc. fast.3, device if regulation and control just can solve in the flue gas SO2 Nox content suddenly change, make the problem of clean-up effect difference.
Embodiment: the structure according to this case has prepared a model machine, treating capacity 100 cubic meters/hour, SO2 content 1200mg/ cubic meter in the flue gas, Nox contains the 600mg/ cubic meter.Removal efficiency is 98% to have reached designing requirement.
Claims (2)
1, a kind of fuel gas electro-catalysis, adsorptive desulfurization denitration dust and heavy metal removal integrated apparatus, it is characterized in that: in A group or the B group catalyst-sorbent bed (2) electrode bar (3) is arranged, under the bed electrode bar (1) is arranged, sparge pipe (4) is in the A group or above the B group catalyst-sorbent bed (2); A is organized water distribution baffle plate (6) or B group catalyst-sorbent bed (2) separates, and constitutes envelope space relatively, and smokejack (5) and flue (7) are respectively in the both sides of catalyst-sorbent bed (2), and sour water valve (8) is arranged at flue (7) bottom.
2, according to claim (1), a kind of fuel gas electro-catalysis, adsorptive desulfurization denitration dust and heavy metal removal integrated apparatus is characterized in that: the electrode bar (1) under catalyst-sorbent bed (2) and electrode bar wherein (3), the bed constitutes an electrostatic field electrode pair, the polarity of electrode bar can be changed by job requirement, and its operating voltage is 3000-20000V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810119310A CN101664638A (en) | 2008-09-03 | 2008-09-03 | Integrated device of electrocatalysis-adsorption, desulfurization, denitration, dust removal and heavy metal removal of fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810119310A CN101664638A (en) | 2008-09-03 | 2008-09-03 | Integrated device of electrocatalysis-adsorption, desulfurization, denitration, dust removal and heavy metal removal of fuel gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101664638A true CN101664638A (en) | 2010-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810119310A Pending CN101664638A (en) | 2008-09-03 | 2008-09-03 | Integrated device of electrocatalysis-adsorption, desulfurization, denitration, dust removal and heavy metal removal of fuel gas |
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| Country | Link |
|---|---|
| CN (1) | CN101664638A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527207A (en) * | 2012-01-18 | 2012-07-04 | 浙江富春江环保热电股份有限公司 | Method for removing multiple pollutants at the same time through electrostatic enhanced catalytic oxidation device used therein |
| CN102553406A (en) * | 2011-11-22 | 2012-07-11 | 浙江大学 | Denitration method and device combining direct-current corona discharge with catalytic oxidation |
| CN109200803A (en) * | 2017-06-30 | 2019-01-15 | 上海交通大学 | Electrostatic field cooperates with coupled catalyst monolith honeycomb reactor |
| CN117643793A (en) * | 2023-09-28 | 2024-03-05 | 浙江新澄宇环境科技有限公司 | Dust removal denitrification facility |
-
2008
- 2008-09-03 CN CN200810119310A patent/CN101664638A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553406A (en) * | 2011-11-22 | 2012-07-11 | 浙江大学 | Denitration method and device combining direct-current corona discharge with catalytic oxidation |
| CN102553406B (en) * | 2011-11-22 | 2013-12-18 | 浙江大学 | Denitration method and device combining direct-current corona discharge with catalytic oxidation |
| CN102527207A (en) * | 2012-01-18 | 2012-07-04 | 浙江富春江环保热电股份有限公司 | Method for removing multiple pollutants at the same time through electrostatic enhanced catalytic oxidation device used therein |
| CN102527207B (en) * | 2012-01-18 | 2014-11-26 | 浙江富春江环保热电股份有限公司 | Method for removing multiple pollutants at the same time through electrostatic enhanced catalytic oxidation device used therein |
| CN109200803A (en) * | 2017-06-30 | 2019-01-15 | 上海交通大学 | Electrostatic field cooperates with coupled catalyst monolith honeycomb reactor |
| CN117643793A (en) * | 2023-09-28 | 2024-03-05 | 浙江新澄宇环境科技有限公司 | Dust removal denitrification facility |
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Open date: 20100310 |