CN108126495A - Hydrogen sulfide absorption tower - Google Patents
Hydrogen sulfide absorption tower Download PDFInfo
- Publication number
- CN108126495A CN108126495A CN201711417005.4A CN201711417005A CN108126495A CN 108126495 A CN108126495 A CN 108126495A CN 201711417005 A CN201711417005 A CN 201711417005A CN 108126495 A CN108126495 A CN 108126495A
- Authority
- CN
- China
- Prior art keywords
- spray
- storage tank
- hydrogen sulfide
- iron storage
- spray column
- 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.)
- Pending
Links
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 37
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 139
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 93
- 229910052742 iron Inorganic materials 0.000 claims abstract description 49
- 238000003860 storage Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 230000000536 complexating effect Effects 0.000 claims description 44
- 238000012423 maintenance Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000003541 multi-stage reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 19
- 239000003513 alkali Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- -1 iron ion Chemical class 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910001447 ferric ion Inorganic materials 0.000 description 2
- 229910001448 ferrous ion Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XDAHMMVFVQFOIY-UHFFFAOYSA-N methanedithione;sulfane Chemical compound S.S=C=S XDAHMMVFVQFOIY-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a hydrogen sulfide absorption tower, which comprises a complex iron storage tank, a first spray tower and a second spray tower, wherein the first spray tower and the second spray tower are both communicated with the complex iron storage tank; the top of the first spray tower is provided with an air inlet and a spray device, and the top of the second spray tower is provided with an air outlet and a spray device; a feeding pipe, a discharging pipe and a circulating pipe are arranged on the complex iron storage tank, and the circulating pipe is connected with a spraying device through a circulating pump; the invention adopts the complex iron solution as the spray liquid to absorb the hydrogen sulfide, compared with the traditional absorption mode, the concentration change of the spray liquid is not required to be monitored in real time, meanwhile, the hydrogen sulfide is ensured to be thoroughly treated through multi-stage reaction absorption, and the product of the reaction not only can not block the pipeline, but also has larger economic value, thereby greatly reducing the workload of workers and improving the economic benefit.
Description
Technical field
The present invention relates to technical field of environment protection equipment, and in particular to a kind of hydrogen sulfide absorption tower.
Background technology
The exhaust gas containing a large amount of hydrogen sulfide and carbon disulfide can be generated in production process of viscose fiber, if direct emission its
Not only serious waste of resource, while also the environment on factory periphery can be caused seriously to pollute, therefore in the prior art usually lead to
It crosses and a large amount of sodium carbonate or sodium hydroxide solution is sprayed into exhaust gas, it is made to react with the hydrogen sulfide in exhaust gas, so as to reach
To cleaning of off-gas, antipollution purpose;Current absorbing liquid spray equipment, using single gas-liquid co-current contact or
Counter current contacting.General lye spray equipment is built-in with multiple atomizers, to increase the contact area of absorbing liquid and exhaust gas, improves
To the removal efficiency of hydrogen sulfide.Absorbing liquid spray equipment is using counter current contacting or co-current contact or increases atomization
Nozzle number, if pending exhausted air quantity is larger, floor space will be considerable, and equipment investment expense also can be very high
It is high.Single simultaneously to be sprayed using level-one, the detergent power to exhaust gas is also limited, it is difficult to remove the vulcanization in " clean " exhaust gas
Hydrogen, therefore mostly achieve the purpose that remove hydrogen sulfide in a manner that multi-stage spray is in series or in parallel.
Chinese utility model patent such as Publication No. CN202460457U disclosed a kind of viscose glue on October 3rd, 2012
Fiber depriving hydrogen sulphide absorption plant including deacidification day with fog, high pressure positive blower, alkali spray column, alkali-prepared tank and automatic control system, removes
The entrance of acid mist device is connect with flue gas leading, and the outlet for the day with fog that deacidifies is connect by high pressure positive blower with alkali spray column, the alkali-prepared tank
Lye export be connected to alkali spray column, the depriving hydrogen sulphide absorption plant, which includes three, to be sprayed successively alternately as two level alkali
The alkali spray column that leaching tower, level-one alkali spray column and spare alkali spray column use, the high pressure positive blower and level-one alkali spray column
Exhaust gas entrance connects, and the waste gas outlet of the level-one alkali spray column is connect with the entrance of two level alkali spray column.The utility model
Level-one alkali spray column and two level alkali spray column carry out two-stage tandem, it may be ensured that sulfur removal technology is carried out continuously.
But since its in above-mentioned technology uses lye, as absorbing liquid, the concentration with the absorption lye of hydrogen sulfide also can
It reduces, while the concentration of hydrogen sulfide in exhaust gas is real-time change, therefore in order to ensure that the assimilation effect to hydrogen sulfide just needs
The concentration of staff's timing detection lye is to ensure to replace aqueous slkali in time, staff's not only heavy workload, absorption tower
Assimilation effect is not good enough yet;It simultaneously in winter can be because of relatively low as the sodium sulfide solution of absorbing liquid reaction generation using hydrogen sulfide
Temperature and cause line clogging, but due in absorption tower space it is limited, the maintenance on absorption tower is extremely difficult.
Invention content
For assimilation effect in the prior art is poor, plant maintenance heavy workload, it is difficult in maintenance the defects of this hair
Bright to disclose a kind of hydrogen sulfide absorption tower, the invention discloses a kind of hydrogen sulfide absorption towers, are not only able to improve using invention and inhale
Assimilation effect of the tower to hydrogen sulfide is received, while also is able to substantially reduce the maintenance workload of staff, ensures that equipment is continuously transported
Row.
Above-mentioned purpose that the invention is realized by the following technical scheme:
Including tower body, spray equipment is provided in the tower body for a kind of hydrogen sulfide absorption tower, it is characterised in that:The tower body packet
Include Complexing Iron storage tank, the first spray column and the second spray column, first spray column and the second spray column are simultaneously and Complexing Iron
Storage tank connects;Air inlet and spray equipment are provided on first spray column, spray equipment is provided on the second spray column
And exhaust outlet;Be provided with circulation pipe and feed inlet on the Complexing Iron storage tank, the circulation pipe by circulating pump respectively with spray
Shower device is connected;Discharge gate is additionally provided on the Complexing Iron storage tank.
Mounting hole is both provided on first spray column and the second spray column, the spray equipment includes spray head and spray
Shower pipe, the spray tube are inserted by mounting hole in the first spray column or the second spray column, and are passed through and connected bolt and fix.
The spray tube is disposed with 4 layers of spray branch pipe under upper, and each spray is provided with 9 conduits on branch pipe,
8 spray heads are provided on every conduit.
Baffle is provided on the Complexing Iron storage tank, the baffle is located at the first spray column and the second spray column and complexing
Between the interface of iron storage tank.
Liquid level gauge and temperature sensor are provided on the Complexing Iron storage tank.
Control valve is both provided on the feed inlet, discharge gate and circulation pipe.
Maintenance door is provided on the Complexing Iron storage tank.
Compared with prior art, the invention has the advantages that:
1st, tower body of the invention includes with Complexing Iron storage tank connecting in Complexing Iron storage tank, the first spray column and the second spray column
It is logical, spray equipment and air inlet are provided on first spray column, spray column and gas outlet, institute are provided on the second spray column
It states and circulation pipe, feed inlet and discharge gate is provided in Complexing Iron storage tank;The circulation pipe passes through circulating pump and spray equipment phase
Even;With it is traditional by the way of the lye compared with, the present invention is molten by Complexing Iron by spraying complexing ferrous solution into spray column
Liquid absorbs hydrogen sulfide gas, reaction generation elemental sulfur and ferrous ion, then by air by oxidation of divalent iron ion is trivalent
Iron ion can rejoin reaction, and the reaction is low to the concentration requirement of Complexing Iron, therefore need to only ensure the oxidation speed of iron ion
Degree without detecting the concentration of the spray liquid in reaction tower at any time, can not only realize the recycling of pharmacy response but also significantly
Reduce the workload of staff;Hydrogen sulfide gas is not only needed after air inlet is entered in tower body by the simultaneously
The positive spray of one spray column and the second spray column and inverse spray twice treatment process, in the mistake for entering the second spray column from the first spray column
It also to be reacted in journey with the complexing ferrous solution of Complexing Iron storage tank, substantially prolong Complexing Iron spray liquid and hydrogen sulfide gas
Reaction time, improve the absorption treatment effect of hydrogen sulfide, the present invention has that good absorption effect, control are easy, it is simple etc. to safeguard
Advantage.
2nd, spray equipment of the invention includes spray tube and spray head, and the spray tube is inserted into the first spray by mounting hole
It drenches in tower and the second spray column, and is fixed by connecting bolt, facilitate staff's demolition and maintenance spray tube, improve overhaul efficiency
And quality.
3rd, 4 layers of spray branch pipe are disposed on spray tube of the invention from top to bottom, each spray is provided with 9 on branch pipe
Root conduit is provided with 8 spray heads on every conduit, the spray liquid concentration that spray equipment sprays is improved, so as to increase spray liquid
With the contact area of hydrogen sulfide gas, assimilation effect is improved.
4th, baffle is provided on Complexing Iron storage tank of the invention, the baffle is located at the first spray column and the second spray column
Between the interface of Complexing Iron storage tank, hydrogen sulfide gas is avoided to be entered directly at the top of Complexing Iron storage tank by baffle
It is that the solution in Complexing Iron storage tank fully reflects with hydrogen sulfide gas, so as to improve assimilation effect in second spray column.
5th, liquid level gauge is provided on Complexing Iron storage tank of the invention, realized to solution is also in Complexing Iron storage tank reality
When monitor, avoid because also be it is excessively high cause hydrogen sulfide by passageway it is too small, ensure absorption efficiency;On the Complexing Iron storage tank
Temperature sensor is additionally provided with, realizes the examinations to temperature in slot, so as to ensure the temperature in storage tank always in most
Good reaction temperature ensures absorption efficiency.
6th, control valve is both provided on feed inlet of the invention, discharge gate and circulation pipe, facilitated in control storage tank
Absorbing liquid flows to, and so as to improve the control ability to reaction process, improves the absorption efficiency of hydrogen sulfide.
7th, maintenance door is provided on Complexing Iron storage tank of the invention, facilitates the maintenance of staff, improve reaction efficiency.
Description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is present invention spray manifold configuration schematic diagram;
Reference numeral:1st, Complexing Iron storage tank, the 2, first spray column, the 3, second spray column, 4, air inlet, 5, exhaust outlet, 6, follow
Endless tube, 7, feed inlet, 8, circulating pump, 9, discharge gate, 10, mounting hole, 11, spray head, 12, spray tube, 13, connection bolt, 14,
Spray branch pipe, 15, conduit, 16, baffle, 17, liquid level gauge, 18, temperature sensor, 19, control valve, 20, maintenance door.
Specific embodiment
It below will the present invention will be further described by specific embodiment:
Embodiment 1
The present embodiment is as highly preferred embodiment of the present invention, it discloses a kind of hydrogen sulfide absorption tower, including Complexing Iron storage tank
1, the first spray column 2 and the second 3 towers of spray, 2 and second spray column 3 of the first spray column connect simultaneously with Complexing Iron storage tank 1
Logical, the top of first spray column 2 is provided with air inlet 4, and the top of the first spray column 2 is disposed with 4 from top to bottom
A mounting hole 10 is both provided with the spray branch pipe being connected with spray tube 12 in each mounting hole 10, and sprays branch pipe and pass through connection
Bolt is fixedly connected with the first spray column;8 spray heads are provided on the spray branch pipe;It is set at the top of second spray column
It is equipped with gas outlet and structure the spray branch pipe and spray head identical with the first spray column;It is set on the side wall of the Complexing Iron storage tank
Feed inlet and circulation pipe are equipped with, bottom is provided with discharge port, and the circulation pipe is connected by circulating pump with spray tube, the charging
Control valve is both provided on mouth, discharge gate and circulation pipe;Baffle, the baffle position are additionally provided at the top of Complexing Iron storage tank
Between the first spray column and the interface of the second spray column and Complexing Iron storage tank.Liquid level is provided on the Complexing Iron storage tank
Meter and temperature sensor;Maintenance door is provided on the Complexing Iron storage tank.
The operation principle of the present invention:The present invention is by spraying into complexing ferrous solution and the stink damp in tail gas into spray column
Precursor reactant generates ferrous ion and elemental sulfur and realizes absorption to hydrogen sulfide gas, then by air by oxidation of divalent iron ion
It can be rejoined in reaction for ferric ion, the reaction is relatively low to the concentration requirement that ferrous solution is complexed, therefore only needs
Ensure that oxidation of divalent iron ion can ensure that the assimilation effect of ferrous solution is complexed for the speed of ferric ion, with traditional alkali soluble
Liquid phase ratio, does not need to staff and measures the concentration of lye at any time to be less than the minimum concentration that reacts to avoid concentration of lye,
And the elemental sulfur generated avoids elemental sulfur and blocks pipeline also from discharge gate direct emission, greatly reduces the labor of staff
Fatigue resistance, the present invention not only realize the real-time recycling to spray liquid, and reacting the elemental sulfur of generation can also be returned
It receives and utilizes, both reduced environmental protection pressure and also improved economic benefit;The present invention is also sprayed by the first spray column and second simultaneously
Complexing ferrous solution in the positive spray and inverse spray and Complexing Iron storage tank of tower carries out three-level absorption processing to tail gas, substantially increases
The time of contact of hydrogen sulfide and spray liquid, so as to ensure that hydrogen sulfide can be fully absorbed by spray liquid;The present invention has at absorption
Manage the advantages that effect is good, control is easy, maintenance is simple.
Claims (7)
1. including tower body, spray equipment is provided in the tower body for a kind of hydrogen sulfide absorption tower, it is characterised in that:The tower body
Including Complexing Iron storage tank(1), the first spray column(2)With the second spray column(3), first spray column(2)With the second spray
Tower(3)Simultaneously with Complexing Iron storage tank(1)Connection;First spray column(2)On be provided with air inlet(4)And spray equipment,
Second spray column(3)On be provided with spray equipment and exhaust outlet(5);The Complexing Iron storage tank(1)On be provided with circulation pipe(6)
And feed inlet(7), the circulation pipe(6)Pass through circulating pump(8)It is connected respectively with spray equipment;The Complexing Iron storage tank(1)
On be additionally provided with discharge gate(9).
2. a kind of hydrogen sulfide absorption tower according to claim 1, it is characterised in that:First spray column(2)With second
Spray column(3)On be both provided with mounting hole(10), the spray equipment include spray head(11)And spray tube(12), the spray
Pipe(12)Pass through mounting hole(10)It is inserted into the first spray column(2)Or second spray column(3)It is interior, and pass through connection bolt(13)Gu
It is fixed.
3. a kind of hydrogen sulfide absorption tower according to claim 2, it is characterised in that:The spray tube(12)Under upper according to
It is secondary to be provided with 4 layers of spray branch pipe(14), each spray branch pipe(14)On be provided with 9 conduits(15), every conduit(15)On set
It is equipped with 8 spray heads(11).
4. a kind of hydrogen sulfide absorption tower according to claim 1, it is characterised in that:The Complexing Iron storage tank(1)On set
It is equipped with baffle(16), the baffle(16)Positioned at the first spray column(2)With the second spray column(3)With Complexing Iron storage tank(1)'s
Between interface.
5. a kind of hydrogen sulfide absorption tower according to claim 1, it is characterised in that:The Complexing Iron storage tank(1)On set
It is equipped with liquid level gauge(17)And temperature sensor(18).
6. a kind of hydrogen sulfide absorption tower according to claim 1, it is characterised in that:The feed inlet(7), discharge gate(9)
And circulation pipe(6)On be both provided with control valve(19).
7. a kind of hydrogen sulfide absorption tower according to claim 1, it is characterised in that:The Complexing Iron storage tank(1)On set
It is equipped with maintenance door(20).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711417005.4A CN108126495A (en) | 2017-12-25 | 2017-12-25 | Hydrogen sulfide absorption tower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711417005.4A CN108126495A (en) | 2017-12-25 | 2017-12-25 | Hydrogen sulfide absorption tower |
Publications (1)
Publication Number | Publication Date |
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CN108126495A true CN108126495A (en) | 2018-06-08 |
Family
ID=62392705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201711417005.4A Pending CN108126495A (en) | 2017-12-25 | 2017-12-25 | Hydrogen sulfide absorption tower |
Country Status (1)
Country | Link |
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CN (1) | CN108126495A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109913276A (en) * | 2019-04-29 | 2019-06-21 | 南京三聚生物质新材料科技有限公司 | A kind of pyrolysis gas of biomass spray equipment and separation method |
CN110652784A (en) * | 2019-11-04 | 2020-01-07 | 河北省农林科学院农业资源环境研究所 | Biochar preparation system |
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US7144555B1 (en) * | 2001-06-20 | 2006-12-05 | Well To Wire Emissions Control Inc. | Method and apparatus for hydrogen sulphide removal |
CN205412559U (en) * | 2015-12-16 | 2016-08-03 | 江苏文凤化纤集团有限公司 | Chemical fibre exhaust treatment device |
CN106422773A (en) * | 2016-11-30 | 2017-02-22 | 唐山绿源环保科技有限公司 | Gas hydrogen sulfide removal system and desulfurizing method thereof |
JP2017148710A (en) * | 2016-02-23 | 2017-08-31 | 新日鐵住金株式会社 | Wet type desulfurization method from hydrogen sulfide containing gas |
CN207755980U (en) * | 2017-12-25 | 2018-08-24 | 宜宾丝丽雅股份有限公司 | Hydrogen sulfide absorption tower |
-
2017
- 2017-12-25 CN CN201711417005.4A patent/CN108126495A/en active Pending
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US7144555B1 (en) * | 2001-06-20 | 2006-12-05 | Well To Wire Emissions Control Inc. | Method and apparatus for hydrogen sulphide removal |
CN205412559U (en) * | 2015-12-16 | 2016-08-03 | 江苏文凤化纤集团有限公司 | Chemical fibre exhaust treatment device |
JP2017148710A (en) * | 2016-02-23 | 2017-08-31 | 新日鐵住金株式会社 | Wet type desulfurization method from hydrogen sulfide containing gas |
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Title |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109913276A (en) * | 2019-04-29 | 2019-06-21 | 南京三聚生物质新材料科技有限公司 | A kind of pyrolysis gas of biomass spray equipment and separation method |
CN110652784A (en) * | 2019-11-04 | 2020-01-07 | 河北省农林科学院农业资源环境研究所 | Biochar preparation system |
CN110652784B (en) * | 2019-11-04 | 2024-03-22 | 河北省农林科学院农业资源环境研究所 | Biochar preparation system |
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RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |
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