CN208022879U - A kind of device that ethylene waste soda residue recycles - Google Patents
A kind of device that ethylene waste soda residue recycles Download PDFInfo
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- CN208022879U CN208022879U CN201820282857.0U CN201820282857U CN208022879U CN 208022879 U CN208022879 U CN 208022879U CN 201820282857 U CN201820282857 U CN 201820282857U CN 208022879 U CN208022879 U CN 208022879U
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Abstract
The utility model provides a kind of device that ethylene waste soda residue recycles, and belongs to environmental technology field.Under carbon dioxide carbonization, vulcanized sodium is converted into sodium carbonate and sodium bicarbonate mixed liquor, while generating hydrogen sulfide, air stripping；Causticization system includes causticization tower, causticization liquid precipitate knockout drum, lime mud storage tank, it is reacted with sodium carbonate by calcium hydroxide, generate precipitation of calcium carbonate, convert sodium carbonate to sodium hydroxide, the calcium carbonate that reaction generates is dehydrated, and powdered lime feeding dry-method desulfurization device is made and is reused；Refining system includes adsorption refining retort, pending regeneration liquid storage tank, anaerobism VTBR high efficiency reactors, aerobic VTBR high efficiency reactors, regenerated liquid clear water storage tank, recycling alkali liquor storage tank, causticization liquid is refined, remove a large amount of colorations and organic matter, retain basicity, realizes the recycling of sodium hydroxide.The present apparatus can realize high efficiente callback spent lye, and by-product efficiently uses in overall process, spent lye and waste zero-emission.
Description
Technical field
The utility model is related to the devices that a kind of ethylene waste soda residue recycles, and belong to environmental technology field.
Background technology
Petroleum chemical enterprise's production process absorbs H frequently with NaOH solution2S and alkali cleaning oil product produce a large amount of spent lyes, main
To include the spent lye containing inorganic sulfur of catalytic cracking, hydrofinishing, ethylene production generation, what condensate processing generated contains organic sulfur
The spent lye containing sodium naphthenate that spent lye and diesel oil, lubricating oil alkali cleaning subtractive process generate.Petrochemical industry alkali-washing waste liquid contains difference
Outside the free alkali of concentration, neutral oil and aphthenic acids, also contain a large amount of vulcanized sodium, has that color and luster is deep, stench, the spy of strong corrosive
Point, is put into《National Hazard name is recorded》(number is：HW35).
Main problem existing for petroleum chemical enterprise's alkali-wash waste water processing procedure has at present, and sulfide passes through when being handled using neutralisation
The hydrogen sulfide that reaction generates easily escapes, and causes environmental pollution and the poisoning of operating personnel；Wet oxidation process comparative maturity,
But handled under high temperature, high pressure, require height, investment larger equipment material；Biochemical method needs are diluted with water, and cannot
Qualified discharge influences sewage plant normal operation；The prior art is not to alkali-washing waste liquid middle and high concentration aphthenic acids, phenol, sodium hydroxide
It with the recycling such as sodium carbonate, results in waste of resources, while generating a large amount of strong brines, difficulty is increased to follow-up sewage disposal.Therefore, have
Necessity exploitation complete treatment technology of petroleum chemical enterprise's alkali-washing waste liquid solves the problems, such as that current alkali-washing waste liquid processing exists.
Utility model content
In order to solve the above technical problems, ethylene waste lye can effectively be located the utility model by providing one kind
The device of reason is realized with the lye that achievees the purpose that treated and is recycled.
Ethylene waste lye refers to weak base section (three sections of discharge liquor)：NaOH：It is not detected；Na2CO3：0.26%；Na2S：
6.81%；And the pollutant effluents of content of organics (COD) >=30000mg/L.
The technical solution of the utility model：
A kind of device that ethylene waste soda residue recycles, the device that the ethylene waste soda residue recycles include that carbonization is
System, causticization system and refining system；
The carbonization system include salkali waste liquid storage tank, carbonators, tail gas stripping tower, carbodiimide solution oil separation tank, dregs of fat tank and
Be carbonized liquid storage tank；Salkali waste liquid storage tank is connect by the first elevator pump with the water inlet of carbonators upper end, the water outlet of carbonators lower end
Mouth is connected by the second elevator pump with the water inlet of tail gas stripping tower lower end, and the water outlet of tail gas stripping tower upper end is carried by third
It rises pump with carbodiimide solution oil separation tank to be connected, carbodiimide solution oil separation tank is separately connected dregs of fat tank and carbonization liquid storage tank, and carbonators and tail gas are blown
De- tower is equipped with reaction gas entrance and offgas outlet；Ethylene waste lye enters carbonators by salkali waste liquid storage tank, in titanium dioxide
Under the effect of carbon gas, carburizing reagent is carried out, converts the vulcanized sodium in ethylene waste lye to the carbonization of sodium carbonate and sodium bicarbonate
Liquid generates hydrogen sulfide gas and carries out stripping in tail gas stripping tower, and the exhaust collection in carbonators and tail gas stripping tower is for making
Standby sulphur；The carbodiimide solution of sodium carbonate and sodium bicarbonate enters carbodiimide solution oil separation tank, is detached in carbodiimide solution oil separation tank, light oil
Component enters dregs of fat tank, and rest part carbodiimide solution enters carbonization liquid storage tank, and storage is ready for causticizing reaction；
The causticization system includes causticization tower, causticization liquid knockout drum, lime mud storage tank and causticization liquid storage tank；Carbodiimide solution stores up
The outlet of tank is connected with the entrance of causticization tower by pipeline, and the outlet of causticization tower and the entrance of causticization liquid knockout drum pass through pipeline phase
Even, causticization tower is the reaction kettle with heating stirring, and causticization liquid knockout drum is separately connected lime mud storage tank and causticization liquid storage tank；Carbonization
Carbodiimide solution in liquid storage tank enters causticization tower via elevator pump, and calcium oxide dry powder is put into causticization tower, carries out causticizing reaction, carbon
Change liquid in sodium carbonate and sodium bicarbonate be converted to sodium hydroxide, into causticization liquid storage tank, at the same generate lime mud calcium carbonate into
Enter lime mud storage tank；
The refining system includes adsorption refining tank, recycling alkali liquor storage tank, pending regeneration liquid storage tank, VTBR anaerobism
Liquid storage tank is regenerated after tower, VTBR aerobic towers and processing；The outlet of causticization liquid storage tank passes through the entrance of piping connection adsorption refining tank,
The outlet of adsorption refining tank is connect with recycling alkali liquor storage tank import, and adsorption refining tank is separately connected pending regeneration liquid storage tank and place
Liquid storage tank is regenerated after reason, pending regeneration liquid storage tank is connect with water inlet below VTBR anaerobic towers, water outlet above VTBR anaerobic towers
Mouth is connect with water inlet below VTBR aerobic towers, and regeneration liquid storage tank is connect after VTBR aerobic towers top water outlet and processing；Causticization
Causticization liquid in liquid storage tank enters adsorption refining tank and carries out adsorption refining, removes coloration and most organic matter, is returned
It receives lye and enters recycling alkali liquor storage tank；In adsorption refining tank adsorbent saturation after, with after processing regenerate liquid storage tank in liquid storage into
Row washing regeneration, regenerated liquid are stored into pending regeneration liquid storage tank, are followed after VTBR anaerobic towers and the processing of VTBR aerobic towers
Ring uses.
The beneficial effects of the utility model：The utility model is a kind of device realized ethylene waste lye and recycled, can
Main component is treated as main component for the lye of sodium hydroxide, instead of fresh soda as the ethylene waste lye of vulcanized sodium
Liquid is realized and is recycled, while the by-product generated in whole system has reasonable place to go, meets production and environmental requirement, this
Each device employed in utility model is the reaction unit of maturation, has easy to operate, of low cost advantage.By each
Sodium hydroxide solution is obtained after order reaction, can be reused instead of fresh lye, and the by-product generated in reacting is equal
It can efficiently use and internal circular treatment, finally realize spent lye minimizing, innoxious, recycling.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model ethylene waste lye recycle device.
In figure：1 salkali waste liquid storage tank；2 carbonators；3 tail gas stripping towers；4 carbodiimide solution oil separation tanks；
4a dregs of fat tanks；Be carbonized liquid storage tank 4b；5 causticization towers；6 causticization liquid knockout drums；6a lime mud storage tanks；
6b causticization liquid storage tanks；7 adsorption refining tanks；8 adsorption refining tanks；9 pending regeneration liquid storage tanks；
10VTBR anaerobic towers；11VTBR aerobic towers；Liquid storage tank is regenerated after 12 processing.
Specific implementation mode
Below in conjunction with attached drawing and technical solution, specific embodiment of the present utility model is further illustrated.
Embodiment
A kind of device that ethylene waste soda residue recycles, the device that the ethylene waste soda residue recycles include that carbonization is
System, causticization system and refining system；
The carbonization system includes salkali waste liquid storage tank 1, carbonators 2, tail gas stripping tower 3, carbodiimide solution oil separation tank 4, the dregs of fat
Tank 4a and carbonization liquid storage tank 4b；Salkali waste liquid storage tank 1 is connect by the first elevator pump A1 with the water inlet of 2 upper end of carbonators, carbonization
The water outlet of 2 lower end of tower is connected by the second elevator pump A2 with the water inlet of 3 lower end of tail gas stripping tower, 3 upper end of tail gas stripping tower
Water outlet be connected with carbodiimide solution oil separation tank 4 by third elevator pump A3, carbodiimide solution oil separation tank 4 is separately connected dregs of fat tank 4a and carbon
Change liquid storage tank 4b, carbonators 2 and tail gas stripping tower 3 are equipped with reaction gas entrance and offgas outlet；Ethylene waste lye passes through salkali waste
Liquid storage tank 1 enters carbonators 2, under carbon dioxide gas effect, carburizing reagent is carried out, by the vulcanized sodium in ethylene waste lye
It is converted into the carbodiimide solution of sodium carbonate and sodium bicarbonate, hydrogen sulfide gas is generated and carries out stripping, carbonators 2 in tail gas stripping tower 3
It is used to prepare sulphur with the exhaust collection in tail gas stripping tower 3；The carbodiimide solution of sodium carbonate and sodium bicarbonate enters carbodiimide solution oil removal
Tank 4 is detached in carbodiimide solution oil separation tank 4, and light oil constituents enters dregs of fat tank 4a, and rest part carbodiimide solution enters carbodiimide solution storage
Tank 4b, storage are ready for causticizing reaction；
The causticization system includes causticization tower 5, causticization liquid knockout drum 6, lime mud storage tank 6a and causticization liquid storage tank 6b；Carbon
The outlet for changing liquid storage tank 4b is connected with the entrance of causticization tower 5 by pipeline, the outlet of causticization tower 5 and entering for causticization liquid knockout drum 6
Mouth is connected by pipeline, and causticization tower 5 is the reaction kettle with heating stirring, and causticization liquid knockout drum 6 is separately connected lime mud storage tank 6a
With causticization liquid storage tank 6b；Carbodiimide solution in carbonization liquid storage tank 4b enters causticization tower 5 via elevator pump, and oxygen is put into causticization tower 5
Change calcium dry powder, carry out causticizing reaction, the sodium carbonate and sodium bicarbonate in carbodiimide solution are converted to sodium hydroxide, into causticization liquid storage tank
6b, while generating lime mud calcium carbonate and entering lime mud storage tank 6a；
The refining system includes that adsorption refining tank 7, recycling alkali liquor storage tank 8, pending regeneration liquid storage tank 9, VTBR detest
Liquid storage tank 12 is regenerated after oxygen column 10, VTBR aerobic towers 11 and processing；The outlet of causticization liquid storage tank 6b essence is adsorbed by piping connection
The outlet of the entrance of tank 7 processed, adsorption refining tank 7 is connect with recycling 8 import of alkali liquor storage tank, and adsorption refining tank 7, which is separately connected, to be waited locating
Liquid storage tank 12 is regenerated after reason regeneration liquid storage tank 9 and processing, pending regeneration liquid storage tank 9 connects with 10 lower section water inlet of VTBR anaerobic towers
It connects, 10 top water outlet of VTBR anaerobic towers is connect with 11 lower section water inlet of VTBR aerobic towers, 11 top water outlet of VTBR aerobic towers
It is connect with liquid storage tank 12 is regenerated after processing；Causticization liquid in causticization liquid storage tank 6b enters adsorption refining tank 7 and carries out adsorption refining, goes
Except coloration and most organic matter, it is recycled lye and enters recycling alkali liquor storage tank 8；Adsorbent is full in adsorption refining tank 7
With it is rear, carry out washing regeneration with the liquid storage in liquid storage tank 12 is regenerated after processing, regenerated liquid enters the storage of pending regeneration liquid storage tank 9
It deposits, is recycled after VTBR anaerobic towers 10 and VTBR aerobic towers 11 are handled.
Claims (1)
1. the device that a kind of ethylene waste soda residue recycles, which is characterized in that the device that the ethylene waste soda residue recycles
Including carbonization system, causticization system and refining system；
The carbonization system include salkali waste liquid storage tank (1), carbonators (2), tail gas stripping tower (3), carbodiimide solution oil separation tank (4),
Dregs of fat tank (4a) and carbonization liquid storage tank (4b)；Salkali waste liquid storage tank (1) is entered by the first elevator pump (A1) and carbonators (2) upper end
The mouth of a river connects, and the water outlet of carbonators (2) lower end passes through the water inlet phase of the second elevator pump (A2) and tail gas stripping tower (3) lower end
Even, the water outlet of tail gas stripping tower (3) upper end is connected by third elevator pump (A3) with carbodiimide solution oil separation tank (4), carbodiimide solution every
Oil tank (4) is separately connected dregs of fat tank (4a) and carbonization liquid storage tank (4b), and carbonators (2) and tail gas stripping tower (3) are equipped with reaction
Gas entrance and offgas outlet；Ethylene waste lye enters carbonators (2) by salkali waste liquid storage tank (1), makees in carbon dioxide gas
Under, carburizing reagent is carried out, converts the vulcanized sodium in ethylene waste lye to the carbodiimide solution of sodium carbonate and sodium bicarbonate, generates sulphur
Change hydrogen and carry out stripping in tail gas stripping tower (3), the exhaust collection in carbonators (2) and tail gas stripping tower (3) is for making
Standby sulphur；The carbodiimide solution of sodium carbonate and sodium bicarbonate enters carbodiimide solution oil separation tank (4), is divided in carbodiimide solution oil separation tank (4)
From light oil constituents enters dregs of fat tank (4a), and rest part carbodiimide solution enters carbonization liquid storage tank (4b), and it is anti-that storage is ready for causticization
It answers；
The causticization system includes causticization tower (5), causticization liquid knockout drum (6), lime mud storage tank (6a) and causticization liquid storage tank
(6b)；The outlet of carbonization liquid storage tank (4b) is connected with the entrance of causticization tower (5) by pipeline, the outlet of causticization tower (5) and causticization
The entrance of liquid knockout drum (6) is connected by pipeline, and causticization tower (5) is the reaction kettle with heating stirring, causticization liquid knockout drum (6) point
It Lian Jie not lime mud storage tank (6a) and causticization liquid storage tank (6b)；The carbodiimide solution being carbonized in liquid storage tank (4b) enters severe via elevator pump
Change tower (5), to calcium oxide dry powder is put into causticization tower (5), carries out causticizing reaction, the sodium carbonate and sodium bicarbonate in carbodiimide solution turn
It is melted into sodium hydroxide, into causticization liquid storage tank (6b), while lime mud calcium carbonate is generated and entering lime mud storage tank (6a)；
The refining system includes adsorption refining tank (7), recycling alkali liquor storage tank (8), pending regeneration liquid storage tank (9), VTBR
Regeneration liquid storage tank (12) after anaerobic tower (10), VTBR aerobic towers (11) and processing；The outlet of causticization liquid storage tank (6b) passes through pipeline
The entrance of adsorption refining tank (7) is connected, the outlet of adsorption refining tank (7) is connect with recycling alkali liquor storage tank (8) import, adsorption refining
Tank (7) be separately connected pending regeneration liquid storage tank (9) and processing after regeneration liquid storage tank (12), pending regeneration liquid storage tank (9) and
Water inlet connection below VTBR anaerobic towers (10), VTBR anaerobic towers (10) top water outlet are intake with below VTBR aerobic towers (11)
Mouth connects, and regeneration liquid storage tank (12) is connect after VTBR aerobic towers (11) top water outlet and processing；In causticization liquid storage tank (6b)
Causticization liquid enters adsorption refining tank (7) and carries out adsorption refining, removes coloration and most organic matter, be recycled lye into
Enter to recycle alkali liquor storage tank (8)；In adsorption refining tank (7) after adsorbent saturation, with the liquid storage regenerated after processing in liquid storage tank (12)
Washing regeneration is carried out, regenerated liquid is stored into pending regeneration liquid storage tank (9), by VTBR anaerobic towers (10) and VTBR aerobic towers
(11) it is recycled after handling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820282857.0U CN208022879U (en) | 2018-02-28 | 2018-02-28 | A kind of device that ethylene waste soda residue recycles |
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| CN201820282857.0U CN208022879U (en) | 2018-02-28 | 2018-02-28 | A kind of device that ethylene waste soda residue recycles |
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| CN208022879U true CN208022879U (en) | 2018-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147628A (en) * | 2018-02-28 | 2018-06-12 | 大连理工大学环境工程设计研究院有限公司 | The device that a kind of ethylene waste soda residue recycles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147628A (en) * | 2018-02-28 | 2018-06-12 | 大连理工大学环境工程设计研究院有限公司 | The device that a kind of ethylene waste soda residue recycles |
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Address after: 116023 No.1, 21st floor, office room, block a, SoftView center, 1a-4 Software Park Road, Dalian high tech Zone, Dalian, Liaoning Province Patentee after: Dalian Institute of Technology Environmental Engineering Design and Research Institute Co., Ltd. Address before: 116023 No.1, 21st floor, office room, block a, SoftView center, 1a-4 Software Park Road, Dalian high tech Zone, Dalian, Liaoning Province Patentee before: ENVIRONMENTAL ENGINEERING INSTITUTE LTD OF DALIAN University OF TECHNOLOGY |