CN101920165A - Device integrated with fuel gas electro-catalysis, adsorptive desulfurization denitration and dust and heavy metal removal - Google Patents
Device integrated with fuel gas electro-catalysis, adsorptive desulfurization denitration and dust and heavy metal removal Download PDFInfo
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- CN101920165A CN101920165A CN2009100863077A CN200910086307A CN101920165A CN 101920165 A CN101920165 A CN 101920165A CN 2009100863077 A CN2009100863077 A CN 2009100863077A CN 200910086307 A CN200910086307 A CN 200910086307A CN 101920165 A CN101920165 A CN 101920165A
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Abstract
The invention relates to a device integrated with fuel gas electro-catalysis, adsorptive desulfurization denitration and dust and heavy metal removal. The device mainly structurally comprises a plurality of pairs of barrel tube positive electrode cages 4 and barrel tube negative electrode cages 7 arranged at the lower part of an insulating ring 8, a water/vapor spray tube 6, a catalyzing-adsorbing agent 5, a gas inlet flue 2 at the lower part of a housing 3, an acid discharging tube 1 at the bottom, a purified gas flue 9 and the like. The device adopts the basic principle that: the barrel tube positive electrode cages 4, the catalyzing-adsorbing agent 5 in the interlayer and the negative electrode cages 7 form an electrostatic field in adsorption. The gases such as SO2/NO/O2 and the like are ionized when passing; and under the action of electric field force, the gases are rapidly adsorbed by the catalyzing-adsorbing agent to carry out oxidation-reduction reaction. The surface of the catalyzing-adsorbing agent in the high-voltage electrostatic field has a great number of 'self-strong oxidization groups' so that the adsorbed substances such as SO2/NO/O2 and the like undergo oxidation-reduction reaction. When the adsorption is saturated, the polarity of high-voltage electrostatic field on the catalyzing-adsorbing agent 5 is reverse; and simultaneously, the water/vapor spray tube 6 sprays water/vapor onto the catalyzing-adsorbing agent 5, and the electronegative H2SO4/HNO3 adsorbed by the catalyzing-adsorbing agent is rapidly dissolved and discharged from the water. The catalyzing-adsorbing agent is desorbed. Such a process is repeatedly circulated to finish removing sulfur, niter, dust and heavy metal from the fuel gas.
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: 1457920200810119310.X
Figure is the part sectioned view of device
1-ACID, 2-flue gas inlet pipe, 3-housing, 4-bucket pipe positive electrode cage 5-catalyst-sorbent, 6-flushing water/steam pipe, 7-negative electrode cage, 8-dead ring, 9-purify gas flue among the figure
ACID 1 among the figure is in the bottom of housing 3, and smoke inlet pipe 2 is in the bottom of housing 3, and flushing water/steam pipe 6 is in bucket pipe positive electrode cage 4 centers; Negative electrode cage 7 has fixed range each other in the outside of bucket pipe positive electrode cage 4; Catalyst-sorbent 5 is in the interlayer of bucket pipe electrode 4 and be full of interlayer. Bucket pipe positive electrode cage 4 is installed in the bottom of dead ring 8, and the top of dead ring 8 is smoke-purifying air flues 9. Bucket pipe positive electrode cage 4 and negative electrode cage 7 consist of a positive and negative electrode electrostatic field.
With reference to the drawing explanation, further specify the operation principle of this case. When flue gas in flue 2 accesss to plant, bucket pipe positive electrode cage 4 consists of high-voltage electrostatic fields with a bucket pipe negative electrode cage 7, flue gas is during by bucket pipe negative electrode 7, the SO2 in the flue gas, Nox, O2, H2O etc. are ionized electronegative property; During bucket pipe positive electrode cage 4 by positively charged, by 5 absorption of electric field+catalyst-sorbent, produces a large amount of spontaneous oxidation group, the generation oxidation-reduction reaction. SO2+ (O2)+H2O-H2SO4 Nox+ (O2)+H2O-HNO3 removes the SO2/NO in the flue gas etc., and the flue gas after the purification is discharged from purification flue 9.
After catalyst-sorbent 5 absorption of bucket pipe positive electrode 4 interlayers were saturated, bucket pipe positive electrode cage 4 was sexually revised by positively charged and is electronegative property, and negative electrode cage 7 is positively charged by electronegative sexually revising, and static polarity is exchanged. Catalyst-sorbent 5 in electronegative barrel of pipe of water spray/steam pipe 6 water spray/vapour flushed zones this moment positive electrode cage 4 interlayers, make H2SO4, the HNO3 etc. of absorption with the material of polarity, under the effect of electrostatic field, from catalyst-sorbent 5, desorb out fast, catalyst-sorbent 5 is purified, enter next time circulation. Acid-bearing wastewater flows out along ACID 1. Purifying smoke is discharged through smoke-purifying air flue 9. So repeatedly finish the desulfurization, denitration, dust removal and heavy metal removal function of flue gas.
A plurality of barrels of large tracts of land catalytic adsorption beds of managing electrostatic field+catalysis one adsorbent 5 formations of positive electrode cage 4 and negative electrode cage 7 formations in the device can be finished the purification of big exhaust gas volumn. A plurality of barrels of pipe positive electrode cages 4 and negative electrode cage 7 electrode pairs are installed, can be divided into N residential quarter; After a residential quarter absorption was saturated, electrode was reverse, and bath/steam pipe 6 is opened flushing and desorbed other N-1 residential quarter normal operation purifying smoke simultaneously. The electrostatic potential that bucket pipe positive electrode cage 4/ negative electrode cage is 7 is 3000-60000V, and electrostatic potential can be regulated and control according to flow and SO2, the N0x equal size of flue gas, to 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 oxidation-reduction rate of catalytic adsorption of Nox etc. fast. 3, device if the regulation and control electrostatic potential just can solve in the flue gas SO2 Nox content suddenly change, make clean-up effect better.
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 (3)
1. fuel gas electro-catalysis, adsorptive desulfurization denitration dust and heavy metal removal integrated apparatus is characterized in that: it is right that bucket pipe positive electrode cage 4 and negative electrode cage 7 constitute a stationary electrode, and flushing water/steam pipe 6 is at the center of bucket pipe positive electrode cage 4; Catalyst-sorbent 5 is full of in the interlayer of bucket pipe positive electrode cage 4, and into fume pipe 2 is arranged at housing 3 bottoms, and acid discharge water pipe 1 is arranged at the bottom; Purify gas flue 9 bottoms a plurality of barrels of pipe positive electrode cages 4 and 7 pairs in negative electrode cage are installed; The top of dead ring 8 is to purify gas flue 9.
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: bucket pipe positive electrode cage 4 constitutes an electrostatic field electrode pair with negative electrode cage 7, the polarity of bucket pipe positive electrode cage and negative electrode cage can be changed by job requirement, and its operating voltage is: 3000-60000V.
3. according to claims (1), (2), a kind of fuel gas electro-catalysis, adsorptive desulfurization denitration dust and heavy metal removal integrated apparatus is characterized in that: be full of catalysis-adsorption agent 5 in the interlayer of bucket pipe positive electrode cage 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100863077A CN101920165A (en) | 2009-06-10 | 2009-06-10 | Device integrated with fuel gas electro-catalysis, adsorptive desulfurization denitration and dust and heavy metal removal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100863077A CN101920165A (en) | 2009-06-10 | 2009-06-10 | Device integrated with fuel gas electro-catalysis, adsorptive desulfurization denitration and dust and heavy metal removal |
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| CN101920165A true CN101920165A (en) | 2010-12-22 |
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| CN2009100863077A Pending CN101920165A (en) | 2009-06-10 | 2009-06-10 | Device integrated with fuel gas electro-catalysis, adsorptive desulfurization denitration and dust and heavy metal removal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258676A (en) * | 2014-09-23 | 2015-01-07 | 大连理工大学 | Catalytic ceramic membrane reaction device |
| WO2020083161A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine exhaust gas ozone purification system and method |
-
2009
- 2009-06-10 CN CN2009100863077A patent/CN101920165A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258676A (en) * | 2014-09-23 | 2015-01-07 | 大连理工大学 | Catalytic ceramic membrane reaction device |
| WO2020083161A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | Engine exhaust gas ozone purification system and method |
| WO2020083162A1 (en) * | 2018-10-22 | 2020-04-30 | 上海必修福企业管理有限公司 | System and method for purifying engine exhaust by using ozone |
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Application publication date: 20101222 |