CN201871320U - Catalytic cracking regeneration flue gas desulfurization and dust removal equipment - Google Patents
Catalytic cracking regeneration flue gas desulfurization and dust removal equipment Download PDFInfo
- Publication number
- CN201871320U CN201871320U CN 201020603519 CN201020603519U CN201871320U CN 201871320 U CN201871320 U CN 201871320U CN 201020603519 CN201020603519 CN 201020603519 CN 201020603519 U CN201020603519 U CN 201020603519U CN 201871320 U CN201871320 U CN 201871320U
- Authority
- CN
- China
- Prior art keywords
- tower
- dedusting
- catalytic cracking
- king
- desulphurizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000003546 flue gas Substances 0.000 title claims abstract description 34
- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 27
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 18
- 230000023556 desulfurization Effects 0.000 title abstract description 17
- 238000011069 regeneration method Methods 0.000 title abstract description 10
- 239000000428 dust Substances 0.000 title abstract description 9
- 230000008929 regeneration Effects 0.000 title abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 15
- 238000010791 quenching Methods 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims abstract description 14
- 230000000171 quenching effect Effects 0.000 claims abstract description 9
- 239000002250 absorbent Substances 0.000 claims abstract description 8
- 230000002745 absorbent Effects 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims description 19
- 239000006096 absorbing agent Substances 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000008400 supply water Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 239000002002 slurry Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
催化裂化再生烟气脱硫除尘设备，可解决降低投资费用等问题，包括吸收主塔和除尘激冷塔，按照烟气的流动方向，除尘激冷塔设置在吸收主塔之前，除尘激冷塔内设置逆喷喷嘴，吸收主塔内设置气体分布器，气体分布器之上设置喷淋吸收段，喷淋吸收段设置多个喷嘴，吸收主塔的上部和下部分别设置吸收剂进口。
Catalytic cracking regeneration flue gas desulfurization and dust removal equipment can solve the problems of reducing investment costs, including the absorption main tower and dust removal and quenching tower. Reverse spray nozzles are installed, a gas distributor is installed in the absorption main tower, a spray absorption section is arranged above the gas distributor, multiple nozzles are arranged in the spray absorption section, and absorbent inlets are respectively arranged at the upper and lower parts of the absorption main tower.
Description
Technical field
The utility model relates to a kind of flue gas desulfurization and dedusting equipment that is used for, and relates in particular to a kind of desulphurizing and dedusting catalytic cracking regenerated smoke equipment.
Background technology
Present domestic flue gas desulfurization technique technology kind is much and comparatively ripe, but is mainly used in the coal-burning boiler of power plant.Contain sulfur dioxide in the regenerated flue gas of oil refining industry catalytic cracking unit equally, and along with the increase of sulfur content in crude oil, and the increasingly stringent of environmental regulation, catalytic cracking unit also ubiquity the problem that sulfur dioxide (SO2) emissions exceed standard.Therefore, it is very necessary regeneration fume from catalytic cracking being handled.
Compare with the plain cylindrical furnace flue gas, regeneration fume from catalytic cracking mainly has following characteristics:
Flue-gas temperature is higher, 240 ℃ of normal temperatures, and temperature reaches 500 ℃ when the highest;
Want " blowing ash " (blowing once once about about two hours weekly) regularly by the technological requirement catalytic cracking unit, particularly dust content is more increased when the interim purging of device, and fluctuation is big;
In the flue gas flue dust particle diameter distribute less (through three or the Category Four cyclone dedusting after, 0-5 ц m particle diameter accounts for 75.6%) and hardness big (most of be metallic catalyst).
At this special high temperature, dust-laden, sulfur-containing smoke gas, bag-type dust that domestic power industry is commonly used or electrostatic precipitator technology and common wet desulphurization technology all can not satisfy its requirement.
The equipment that present catalytic cracking flue gas desulfur technology mainly adopts comprises packed tower, spray column, Venturi scrubber etc.
The key equipment of EDV wet desulphurization technology is a Venturi scrubber, and gas-liquid two-phase absorbs desulfurization by the spray district earlier, carries out dedusting through venturi filtering module again, and gas phase is got rid of from the cat head chimney after globule separator dewaters, and liquid phase recycles at the bottom of returning tower.The shortcoming of this technology is an apparatus expensive, investment and operating cost height.
Disclose seawer washing flue gas desulfurization, the flue gas desulfurization of absorbent regeneration method and duct type flue gas desulfurization in addition.
Seawer washing flue gas desulfurization is based on seawater, and to have natural alkalescence gentle to ability; Sulfur in smoke by Absorption by Sea Water after, can be converted into sulfate ion, be again a kind of natural constituents of seawater.Come the flue gas of catalytic cracking at first to enter electrostatic precipitator, remove catalyst dust, then in filler with the seawater counter current contacting, seawater once passes through, the sulfur dioxide clearance is higher.This technology is simple, owing to do not consume reagent, operating cost is lower.But it is bigger to be subjected to regional impact, is not suitable for promoting the use of at large.
Absorbent regeneration method (claim again two subtractions) flue gas desulfurization be by soda lye to flue gas is carried out desulfurization and dedusting, alkali lye is fully contacted, the realization desulfurization and dedusting with flue gas.Desulfurization slurry utilizes lime slurry to carry out soda regeneration through post precipitation, and the soda lye of regeneration returns in the desulfurizing tower and reuses, and the calcium sulfite solid after the regeneration obtains gypsum product after acidifying, oxidation, dehydration.This technology is because the gypsum product that reuses and finally generate of soda makes desulphurization cost reduce greatly, but in the practical operation owing to be difficult in desulfurizing tower, suppress the oxidation of sulphite, make the regeneration rate of soda be difficult to improve.By-produced gypsum is also owing to be difficult to reach the quality of the plaster of paris, carries out landfill disposal mostly and do not reach the purpose of comprehensive utilization.In addition, method of reproduction flue gas desulfurization technique relative complex has the higher and bigger shortcoming of floor space of investment.
The main desulphurization plant of duct type flue gas desulfurization is the duct type structure, and desulphurization plant also is the passage of fume emission simultaneously, can effectively reduce unit scale, and floor space is little, is applicable to the transformation of existing apparatus.Have not yet to see the large-scale commercial Application of this method.
Put it briefly, mainly there is following shortcoming at present main catalytic cracking flue gas desulfurization dust-removing technique:
(1) equipment material is had relatively high expectations, and equipment investment is higher;
(2) complex process, floor space is big;
(3) dust removing effects is not good, is difficult to remove contained particle than thin and content big ups and downs in the regenerated flue gas.
The utility model content
The purpose of this utility model is to provide a kind of desulphurizing and dedusting catalytic cracking regenerated smoke equipment, to solve problems such as reducing investment cost.
For realizing described purpose, a kind of desulphurizing and dedusting catalytic cracking regenerated smoke equipment, be characterized in, comprise absorbing king-tower and dedusting quenching column, according to the flow direction of flue gas, the dedusting quenching column is arranged on and absorbs before the king-tower, contrary spraying nozzle is set in the dedusting quenching column, in the absorption king-tower gas distributor is set, the spray absorber portion is set on the gas distributor, the spray absorber portion is provided with a plurality of nozzles, and the upper and lower that absorbs king-tower is provided with the absorbent import respectively.
Described desulphurizing and dedusting catalytic cracking regenerated smoke equipment, wherein, the dedusting quenching column is arranged on the gas approach place that absorbs king-tower.
Described desulphurizing and dedusting catalytic cracking regenerated smoke equipment, wherein, king-tower top, absorption tower is an exhanst gas outlet.
Described desulphurizing and dedusting catalytic cracking regenerated smoke equipment, wherein, spray absorber portion top is provided with demister and flushing system thereof.
Described desulphurizing and dedusting catalytic cracking regenerated smoke equipment wherein, absorbs king-tower bottom communicated drainage pump, and the delivery port of this draining pump optionally is communicated with sewage disposal unit and contrary spraying nozzle.
Described desulphurizing and dedusting catalytic cracking regenerated smoke equipment, wherein, the spray absorber portion is communicated with supply-water pump, and the water supply delivery side of pump also is communicated to the bottom that absorbs king-tower simultaneously.
The desulfurization and dedusting tower was provided with a dedusting Quench section before entering the absorption king-tower, flue gas is carried out the Quench cooling, and dust and other impurity washed, adopt rapids to make flue gas and slurries form a rapid impulse face at this section towards spraying technique, fierce collision takes place in each micelle of gas-liquid, thereby effectively remove dust more than 80% and impurity in the flue gas, the gas distributor that is provided with before the absorber portion guarantees that on the one hand flue gas is evenly distributed when entering absorber portion, on the other hand absorber portion slurries and Quench dedusting section slurries are separated, avoided particle to enter absorber portion.Also be convenient to the adjusting of absorber portion pH value, improve operating flexibility.Therefore, the aforementioned techniques scheme has following technique effect:
(1) owing to be provided with the Quench section, greatly reduces operating temperature in the tower, therefore can use comparatively cheap lining material;
(2) technological process is simplified, compact equipment, and floor space is less;
(3) absorbent utilization rate height, good absorbing effect;
(4) good dedusting effect, effectively contained in the eccysis flue gas than fine particle;
(5) can the configuration-system module according to different user demands, satisfy user's maximum demand.
Description of drawings
Fig. 1 is the organigram of desulphurizing and dedusting catalytic cracking regenerated smoke equipment of the present utility model.
The specific embodiment
As shown in Figure 1, desulphurizing and dedusting catalytic cracking regenerated smoke equipment is the desulfuration absorbing tower of the cold dedusting section of preposition rapid impulse, flue gas enters Quench dedusting section 1, contrary spraying nozzle 2 is set in the Quench dedusting section 1, slurries by the absorption tower bottom storage in this section carry out the dedusting cooling to flue gas, and this section also has certain desulfurized effect simultaneously.Flue gas evenly enters spray absorber portion 4 after the distribution through gas distributor 3 after entering the absorption tower main body, absorber portion is provided with nozzle 5, the water of nozzle 5 is from supply-water pump 13, and supply-water pump 13 also is communicated with the bottom that absorbs king-tower simultaneously, removes by sprayed slurry and remains sulfur dioxide in the flue gas.Absorber portion top is provided with demister 6 and flushing water system 7 thereof, is used for removing outlet flue gas institute droplets entrained; The top, absorption tower is an exhanst gas outlet 8, and the flue gas behind the dust-removal and desulfurizing is got rid of through this.
Absorbent is an alkali lye, NaOH solution for example, and absorbent adds the absorption tower respectively by 10 two imports in top, absorption tower 9 and bottom.Bottom, absorption tower slurries part drains into sewage disposal unit 11 by draining pump 12, with the balance of water and particle in the maintenance tower.
Claims (6)
1. desulphurizing and dedusting catalytic cracking regenerated smoke equipment, it is characterized in that, comprise and absorb king-tower and dedusting quenching column, according to the flow direction of flue gas, the dedusting quenching column is arranged on and absorbs before the king-tower, and contrary spraying nozzle is set in the dedusting quenching column, absorb in the king-tower gas distributor is set, the spray absorber portion is set on the gas distributor, and the spray absorber portion is provided with a plurality of nozzles, and the upper and lower that absorbs king-tower is provided with the absorbent import respectively.
2. desulphurizing and dedusting catalytic cracking regenerated smoke equipment as claimed in claim 1 is characterized in that, the dedusting quenching column is arranged on the gas approach place that absorbs king-tower.
3. desulphurizing and dedusting catalytic cracking regenerated smoke equipment as claimed in claim 1 is characterized in that, king-tower top, absorption tower is an exhanst gas outlet.
4. desulphurizing and dedusting catalytic cracking regenerated smoke equipment as claimed in claim 1 is characterized in that, spray absorber portion top is provided with demister and flushing system thereof.
5. desulphurizing and dedusting catalytic cracking regenerated smoke equipment as claimed in claim 1 is characterized in that, absorbs king-tower bottom communicated drainage pump, and the delivery port of this draining pump optionally is communicated with sewage disposal unit and contrary spraying nozzle.
6. desulphurizing and dedusting catalytic cracking regenerated smoke equipment as claimed in claim 5 is characterized in that, the spray absorber portion is communicated with supply-water pump, and the water supply delivery side of pump also is communicated to the bottom that absorbs king-tower simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020603519 CN201871320U (en) | 2010-11-12 | 2010-11-12 | Catalytic cracking regeneration flue gas desulfurization and dust removal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020603519 CN201871320U (en) | 2010-11-12 | 2010-11-12 | Catalytic cracking regeneration flue gas desulfurization and dust removal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201871320U true CN201871320U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020603519 Expired - Lifetime CN201871320U (en) | 2010-11-12 | 2010-11-12 | Catalytic cracking regeneration flue gas desulfurization and dust removal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201871320U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745803A (en) * | 2017-11-07 | 2019-05-14 | 中国石油化工股份有限公司 | Flue gas washing method and catalytic cracking method |
| CN110433637A (en) * | 2019-07-30 | 2019-11-12 | 大连汉诺工程技术有限公司 | Flue gas desulfurization device and process by using soda ash method |
| CN110479075A (en) * | 2019-09-26 | 2019-11-22 | 四川省达科特能源科技股份有限公司 | A kind of gas cooling, desulfurization and rich solution regeneration integrated device and technique |
| CN111359395A (en) * | 2020-04-15 | 2020-07-03 | 吴晓毛 | Coal-based natural gas flue gas multi-point replacement desulfurization device and application method thereof |
-
2010
- 2010-11-12 CN CN 201020603519 patent/CN201871320U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745803A (en) * | 2017-11-07 | 2019-05-14 | 中国石油化工股份有限公司 | Flue gas washing method and catalytic cracking method |
| CN110433637A (en) * | 2019-07-30 | 2019-11-12 | 大连汉诺工程技术有限公司 | Flue gas desulfurization device and process by using soda ash method |
| CN110479075A (en) * | 2019-09-26 | 2019-11-22 | 四川省达科特能源科技股份有限公司 | A kind of gas cooling, desulfurization and rich solution regeneration integrated device and technique |
| CN111359395A (en) * | 2020-04-15 | 2020-07-03 | 吴晓毛 | Coal-based natural gas flue gas multi-point replacement desulfurization device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC Ningbo Technology Research Institute Co., Ltd. Patentee after: SINOPEC Ningbo Engineering Company Limited Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Sinopec Ningbo Institute of Technology Patentee before: Sinopec Ningbo Engineering Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |