CN106390683B - It distills bromine tail gas processed and automatically controls absorption technique - Google Patents
It distills bromine tail gas processed and automatically controls absorption technique Download PDFInfo
- Publication number
- CN106390683B CN106390683B CN201610752363.XA CN201610752363A CN106390683B CN 106390683 B CN106390683 B CN 106390683B CN 201610752363 A CN201610752363 A CN 201610752363A CN 106390683 B CN106390683 B CN 106390683B
- Authority
- CN
- China
- Prior art keywords
- step recovery
- absorption
- bromine
- tail gas
- recovery tower
- 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.)
- Active
Links
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
- B01D53/14—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 by absorption
- B01D53/1406—Multiple stage absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- 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
- B01D53/14—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 by absorption
- B01D53/1418—Recovery of products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2022—Bromine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2025—Chlorine
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of distillation bromine tail gas processed to automatically control absorption technique, comprising the following steps: (I) step recovery tower Reducing and absorption；The monitoring of (II) step recovery tower；(III) two step recovery tower Reducing and absorption.The present invention reacts the principle that the bromine generated is in rufous using chlorine with bromide ion, the oxidation panel floating range in one step recovery tower being in rufous is monitored using lighting apparatus, when oxidation panel color is beyond setting upper limit value, the brine interlocked therewith absorbs pump startup, absorption brine is pumped into two step recovery towers, bromine is absorbed, then drains into the useless halogen of blowout, goes salt manufacturing；When oxidation panel color is lower than preset lower limit, the brine absorption pump interlocked therewith stops working, and is no longer pumped into absorption brine to two step recovery towers；One step recovery tower normally absorbs bromine, the chlorine in tail gas, and absorbing liquid in destilling tower subsequently into being distilled；It realizes two step tail gas recycles, reduces the discharge of bromine, chlorine tail gas, avoid environmental pollution.
Description
Technical field
The invention belongs to the treatment process of bromine tail gas processed, and in particular to a kind of distillation bromine tail gas automatic control absorption work processed
Skill.
Background technique
The absorption technique of existing distillation bromine tail gas processed is purified using a step recovery tower, and specific absorption technique is to make
It uses the blowout absorbing liquid of brominated amount 40g/L or more as absorbing liquid is recycled, artificially observes chlorine oxygen in destilling tower in absorption process
Change mother liquor and generate the color of bromine and float, and then carry out chlorine flowrate adjustment, however when distill the amount of chlorine in bromine tail gas processed it is excessive,
When distilling bromine reaction overlong time processed, a step recovery tower is unable to cleaning of off-gas, has bromine, chlorine drains into atmosphere and pollutes environment.
Summary of the invention
The present invention proposes that the purpose is to provide a kind of distillation bromine tail processed in order to overcome disadvantage existing in the prior art
Gas automatically controls absorption technique.
The technical scheme is that
A kind of distillation bromine tail gas automatic control absorption technique processed, comprising the following steps:
(I) step recovery tower Reducing and absorption
Blowout absorbing liquid is injected from a step recovery tower top entry, simultaneously the distillation bromine tail gas containing chlorine, bromine gas
Enter from a step recovery tower bottom side port；It blows out absorbing liquid and Reducing and absorption is carried out to chlorine, bromine gas；Liquid after Reducing and absorption by
One step recycles the export of tower bottom central exit, carries out distillation bromine processed into destilling tower；Tail gas after preliminary purification is recycled by a step
The export of top of tower side port, and enter two step recovery towers by two step recovery tower bottom side ports；
The monitoring of (II) step recovery tower
Monitoring device monitors a step recovery tower internal oxidition section color change, when oxidation panel color is set beyond a step recovery tower
When upper limit value, brine is absorbed pump startup by PLC control cabinet, and brine in useless halogen ditch is pumped by two step recovery tower top center entrances
In two step recovery towers；When oxidation panel color is lower than a step recovery tower preset lower limit, PLC control cabinet closes brine absorption pump
It closes；
(III) two step recovery tower Reducing and absorption
Brine carries out Reducing and absorption to the tail gas after preliminary purification in two step recovery towers, and purified tail gas is recycled by two steps
Top of tower side port drains into atmosphere；Liquid after Reducing and absorption is transmitted back to useless halogen ditch by the outlet of two step recovery tower top centers.
The brominated amount of the blowout absorbing liquid is in 40g/L or more.
In the step (II) when oxidation panel color sets 0.6 meter of upper limit value beyond a step recovery tower, brine absorption pump
Starting；When oxidation panel color is lower than 0.2 meter of a step recovery tower preset lower limit, brine absorption pump is closed.
The monitoring device includes camera, the computer and PLC control cabinet connecting with camera through signal wire.
The beneficial effects of the present invention are:
The present invention is occurred instead using bromine ion-containing absorbing liquid in the chlorine and a step recovery tower that contain in bromine tail gas processed is distilled
It answers, the bromine of generation is in the principle of rufous, using lighting apparatus to the oxidation panel floating model in a step recovery tower being in rufous
It encloses and is monitored, when oxidation panel color is beyond setting upper limit value, the brine interlocked therewith absorbs pump startup, to two step recovery towers
It is pumped into absorption brine, bromine is absorbed, then drains into the useless halogen of blowout, goes salt manufacturing；When oxidation panel color is lower than under setting
When limit value, the brine absorption pump interlocked therewith stops working, and is no longer pumped into absorption brine to two step recovery towers；One step recovery tower is just
Often bromine, the chlorine in tail gas are absorbed, absorbing liquid in destilling tower subsequently into being distilled；It realizes two step tail gas recycles, subtracts
The discharge of few bromine, chlorine tail gas, avoids environmental pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of equipment used herein.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment distills bromine tail gas processed to the present invention and automatically controls absorption technique progress in detail
It describes in detail bright:
As shown in Figure 1, a kind of distillation bromine tail gas processed automatically controls absorption technique, comprising the following steps:
(I) step recovery tower Reducing and absorption
Blowout absorbing liquid is injected from a step recovery tower top entry, simultaneously the distillation bromine tail gas containing chlorine, bromine gas
Enter from a step recovery tower bottom side port；It blows out absorbing liquid and Reducing and absorption is carried out to chlorine, bromine gas；Liquid after Reducing and absorption by
One step recycles the export of tower bottom central exit, carries out distillation bromine processed into destilling tower；Tail gas after preliminary purification is recycled by a step
The export of top of tower side port, and enter two step recovery towers by two step recovery tower bottom side ports；
The monitoring of (II) step recovery tower
Monitoring device monitors a step recovery tower internal oxidition section color change, when oxidation panel color is set beyond a step recovery tower
When upper limit value, brine is absorbed pump startup by PLC control cabinet, and brine in useless halogen ditch is pumped by two step recovery tower top center entrances
In two step recovery towers；When oxidation panel color is lower than a step recovery tower preset lower limit, PLC control cabinet closes brine absorption pump
It closes；
(III) two step recovery tower Reducing and absorption
Brine carries out Reducing and absorption to the tail gas after preliminary purification in two step recovery towers, and purified tail gas is recycled by two steps
Top of tower side port drains into atmosphere；Liquid after Reducing and absorption is transmitted back to useless halogen ditch by the outlet of two step recovery tower top centers.
Liquid after two step recovery tower Reducing and absorptions can also be immediately discharged to blow out in useless halogen because the bromine, the chlorine that contain are lower,
For salt manufacturing.
The brominated amount of the blowout absorbing liquid is in 40g/L or more.
In the step (II) when oxidation panel color sets 0.6 meter of upper limit value beyond a step recovery tower, brine absorption pump
Starting；When oxidation panel color is lower than 0.2 meter of a step recovery tower preset lower limit, brine absorption pump is closed.
The monitoring device includes camera, the computer and PLC control cabinet connecting with camera through signal wire.
The present invention is occurred instead using bromine ion-containing absorbing liquid in the chlorine and a step recovery tower that contain in bromine tail gas processed is distilled
It answers, the bromine of generation is in the principle of rufous, using lighting apparatus to the oxidation panel floating model in a step recovery tower being in rufous
It encloses and is monitored, when oxidation panel color is beyond setting upper limit value, the brine interlocked therewith absorbs pump startup, to two step recovery towers
It is pumped into absorption brine, bromine is absorbed, then drains into the useless halogen of blowout, goes salt manufacturing；When oxidation panel color is lower than under setting
When limit value, the brine absorption pump interlocked therewith stops working, and is no longer pumped into absorption brine to two step recovery towers；One step recovery tower is just
Often bromine, the chlorine in tail gas are absorbed, absorbing liquid in destilling tower subsequently into being distilled；It realizes two step tail gas recycles, subtracts
The discharge of few bromine, chlorine tail gas, avoids environmental pollution.
Claims (3)
1. a kind of distillation bromine tail gas processed automatically controls absorption technique, it is characterised in that: the following steps are included:
(I) step recovery tower Reducing and absorption
Blowout absorbing liquid is injected from a step recovery tower top entry, simultaneously containing chlorine, bromine gas distillation bromine tail gas from one
Recovery tower bottom side port is walked to enter；It blows out absorbing liquid and Reducing and absorption is carried out to chlorine, bromine gas；Liquid after Reducing and absorption is by a step
The export of tower bottom central exit is recycled, carries out distillation bromine processed into destilling tower；Tail gas after preliminary purification recycles tower top by a step
The export of portion's side port, and enter two step recovery towers by two step recovery tower bottom side ports；
The monitoring of (II) step recovery tower
Monitoring device monitors a step recovery tower internal oxidition section color change, when oxidation panel color sets the upper limit beyond a step recovery tower
At 0.6 meter of value, brine is absorbed pump startup by PLC control cabinet, by brine in useless halogen ditch by two step recovery tower top center inlet pumps
Enter in two step recovery towers；When oxidation panel color is lower than 0.2 meter of a step recovery tower preset lower limit, PLC control cabinet inhales brine
Pump is received to close；
(III) two step recovery tower Reducing and absorption
Brine carries out Reducing and absorption to the tail gas after preliminary purification in two step recovery towers, and purified tail gas recycles tower top by two steps
Portion's side port drains into atmosphere；Liquid after Reducing and absorption is transmitted back to useless halogen ditch by the outlet of two step recovery tower top centers.
2. a kind of distillation bromine tail gas processed according to claim 1 automatically controls absorption technique, it is characterised in that: the blowout
The brominated amount of absorbing liquid is in 40g/L or more.
3. a kind of distillation bromine tail gas processed according to claim 1 automatically controls absorption technique, it is characterised in that: the monitoring
Equipment includes camera, the computer and PLC control cabinet connecting with camera through signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752363.XA CN106390683B (en) | 2016-08-30 | 2016-08-30 | It distills bromine tail gas processed and automatically controls absorption technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752363.XA CN106390683B (en) | 2016-08-30 | 2016-08-30 | It distills bromine tail gas processed and automatically controls absorption technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106390683A CN106390683A (en) | 2017-02-15 |
| CN106390683B true CN106390683B (en) | 2019-02-19 |
Family
ID=58003750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610752363.XA Active CN106390683B (en) | 2016-08-30 | 2016-08-30 | It distills bromine tail gas processed and automatically controls absorption technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106390683B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569995B (en) * | 2017-10-23 | 2024-04-09 | 天津长芦海晶集团有限公司 | Chlorine recovery treatment device and technology |
| CN108640086A (en) * | 2018-07-02 | 2018-10-12 | 天津海晶科技发展有限公司 | The automatic control process of chlorine in bromine blowout process processed |
| CN108862198A (en) * | 2018-08-22 | 2018-11-23 | 天津海晶科技发展有限公司 | The automatic adjustment technique of bromine Reducing and absorption water processed |
| CN108640087A (en) * | 2018-08-22 | 2018-10-12 | 天津海晶科技发展有限公司 | A kind of bromine distillation process waste liquid automatic switchover recovery process processed |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2721919B1 (en) * | 1994-06-29 | 1996-09-13 | Bertin & Cie | PROCESS AND PLANT FOR RECOVERING BROMINE FROM A LIQUID EFFLUENT |
| CN202289817U (en) * | 2011-08-26 | 2012-07-04 | 莱州诚源盐化有限公司 | Device for recovering tail gas generated in bromine packaging process |
| CN103303868A (en) * | 2013-06-26 | 2013-09-18 | 山东昌邑灶户盐化有限公司 | Bromine distillation tower |
| CN203333292U (en) * | 2013-06-26 | 2013-12-11 | 山东昌邑灶户盐化有限公司 | Brine absorbing device |
| CN104609370A (en) * | 2013-11-01 | 2015-05-13 | 天津长芦海晶集团有限公司 | Technology for extracting bromine through air blow-out method |
| CN104310311B (en) * | 2014-10-09 | 2017-02-08 | 山东天一化学股份有限公司 | Method for extracting bromine from brine |
| CN104944376A (en) * | 2015-06-19 | 2015-09-30 | 天津长芦海晶集团有限公司 | Preparation method for absorbed water for preparing bromine |
-
2016
- 2016-08-30 CN CN201610752363.XA patent/CN106390683B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106390683A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106390683B (en) | It distills bromine tail gas processed and automatically controls absorption technique | |
| TWI615509B (en) | Method for electrolytic recycling and regenerating acidic cupric chloride etchants | |
| CN105439356A (en) | Method and device for synchronously recycling sulfuric acid and fluorine and chlorine from polluted acid | |
| CN205867960U (en) | Device is administered to ammonia nitrogen wastewater and acid etching liquid film electrolytic process chlorine | |
| CN104746098A (en) | Electrolyte and method for electrolyzing and refining crude lead | |
| WO2022022461A1 (en) | Method and apparatus for regeneration and reuse of alkaline etching waste liquid | |
| CN112458463A (en) | Acid etching solution recycling system and method | |
| CN201770561U (en) | Mixed electroplating waste water treatment recycling set device | |
| CN101658752B (en) | Recycling device of waste gas generated by producing rubber ingredients | |
| CN204162793U (en) | A kind of circuit board etching and etching solution regeneration complete equipment | |
| CN103819306A (en) | Technology for removing ferric trichloride from chlorination liquid generated in chlorobenzene production | |
| CN106185953B (en) | A kind of large-scale quartz sand pickling impurity removal whitening process | |
| CN205088304U (en) | Novel chlorine absorbs device | |
| CN104056554B (en) | A kind of MBR on-line cleaning method | |
| CN203916420U (en) | A kind of acid mist purifying device | |
| CN102584523B (en) | Semifinished chlorinated solution water washing and alkali washing device used during chlorobenzene production and water washing and alkali washing method | |
| CN102923661B (en) | Anolyte clarifying tank waste chlorine gas recovery technology in ionic membrane caustic soda production | |
| CN214990827U (en) | Ammonium removal system for chlor-alkali industry | |
| CN104624586A (en) | Online cleaning method for off-gas pipe in fluosilicic acid concentration system | |
| CN205529042U (en) | Copper system is put forward in regeneration of alkaline etching liquid | |
| CN208308575U (en) | A kind of high-concentration fluorine-containing waste water advanced treatment apparatus | |
| US20200131038A1 (en) | Method for extracting iodine from an aqueous solution | |
| CN101733255B (en) | On-line cleaning method of silicon dioxide filtering machine | |
| CN204699576U (en) | A kind of acetylene gas purifying processing device | |
| CN204356404U (en) | Printed circuit board alkali etching copper reclaims electrolyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |