CN105418811B - Energy-saving method in neoprene production process - Google Patents
Energy-saving method in neoprene production process Download PDFInfo
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- CN105418811B CN105418811B CN201511014641.3A CN201511014641A CN105418811B CN 105418811 B CN105418811 B CN 105418811B CN 201511014641 A CN201511014641 A CN 201511014641A CN 105418811 B CN105418811 B CN 105418811B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F36/14—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
- C08F36/16—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen
- C08F36/18—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen containing chlorine
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention provides energy-saving method in neoprene production process, and following technological operation is carried out at dimerization workshop section：(1) enter foam removal equipment after the mixed gas autoreaction tower top effusion after dimerization reaction, the particulate matter in mixed gas is removed by way of first gas-liquid mixed again gas-liquid separation；(2) gas phase after foam removal equipment enters back into water-cooling tower lower part, in 12 15 DEG C of the industry water counter current contacting that Ta Nei and tower top spray, directly cools down and washes out the impurity of entrained with；(3) preliminary reaction gas after cooling is escaped from water cooling tower top, wherein moisture content and most high boiling point organic compound is further removed into brine cooling tower, the industry water discharged in water-cooling tower enters step the foam removal equipment in (1)；The method directly reduces a water consumption in water-cooling tower, and with wastewater discharge in acetylene dimer workshop section is reduced, the waste water of outer row is also used as foam removal and is reused with water.
Description
Technical field
The present invention relates to energy-saving method in neoprene production field, especially neoprene production process.
Background technology
Neoprene is the principal item of synthetic rubber, is used to manufacture a variety of automobile components, oil resistant resistant to chemical etching
It is sebific duct, container lining, packing ring, offset plate, rubber roller, automobile and tractor accessory, the foreskin glue-line of electric wire and cable, part for rubber dam, each
Class sealing strip, the rubber for having flame-retardancy requirements and tailored version product, such as high temperature resistant, hardening and bonding agent product.
Acetylene dimer workshop section in neoprene production process at present, on the one hand needs largely to use a water, for
Very big difficulty is brought in the area of water shortage, while consumes a large amount of valuable water resources；On the other hand substantial amounts of copper-containing acid-containing can be produced
Waste water, this burst of waste water treatment process complexity, processing cost is high, below standard discharge is easily caused in actual production, there is an urgent need for pass through technology
The usage amount of transformation water of reduction and the discharge capacity of waste water.
In neoprene production process, acetylene gas bubbling is by catalyst liquid layer in tower, through catalysis, acetylene dimer
Vinylacetylene is generated, while generates divinylacetylene, acetaldehyde and micro vinyl chloride and other accessory substances.It is mixed after reaction
Close gas autoreaction tower top and escape into water-cooling tower lower part, in 12 DEG C or so of the industry water adverse current that Ta Nei and tower top spray
Contact, directly cools down and washes out the catalyst being entrained with；Preliminary reaction gas after cooling is escaped from water cooling tower top, into salt water cooling
But tower further removes wherein moisture content and most high boiling point organic compound.Due to containing in former technique in the water of water cooling tower reactor wash-off
There are the plurality of impurities such as catalyst, if directly cooled down, easily cause heat transmission equipment to block, kettle material can not be cooled down laggard
Row circulation causes factory there are a large amount of waste liquids to need to handle, it is necessary to directly as waste water discharge system.
The content of the invention
The technical problems to be solved by the invention are in the energy-saving method in a kind of neoprene production process is provided.
In order to solve the above technical problems, the technical scheme is that：
Energy-saving method in a kind of neoprene production process, carries out following technological operation at dimerization workshop section：
(1) foam removal equipment is entered after the mixed gas autoreaction tower top effusion after dimerization reaction, by first gas-liquid mixed again
The mode of gas-liquid separation removes the particulate matter in mixed gas；
(2) gas phase after foam removal equipment enters back into water-cooling tower lower part, 12-15 DEG C sprayed in Ta Nei and tower top
Industry water counter current contacting, directly cool down and wash out the impurity of entrained with；
(3) preliminary reaction gas after cooling is escaped from water cooling tower top, and wherein moisture content is further removed into brine cooling tower
And most high boiling point organic compound, the industry water discharged in water-cooling tower enter step the foam removal equipment in (1).
Preferably, energy-saving method in above-mentioned neoprene production process, foam removal equipment is by trapping in the step (1)
Device connects composition with gas-liquid separator by flange, and the trap is placed at the top of gas-liquid separator, and the trap is injection
Shape three-port structure, the mixed gas after dimerization reaction enter from side one end of the three-port structure of the trap, and liquid passes through
Interpolation pipe is entered in trap from top one end of the three-port structure of the trap and come into full contact with gas, gas-liquid mixed
The bottom end of thing from the three-port structure of the trap is entered directly into gas-liquid separator, is deposited using between gas and liquid
Density contrast, the particulate matter in gas entered in liquid phase, and the gas without particulate matter is gone out at the top of gas-liquid separator,
Liquid phase containing particulate matter is discharged from the bottom of gas-liquid separator, so that gas-liquid is separated.
Preferably, energy-saving method in above-mentioned neoprene production process, it is mixed after dimerization reaction in the step (1)
The temperature for closing gas is 80 DEG C.
Preferably, energy-saving method in above-mentioned neoprene production process, the tower reactor thing of water-cooling tower in the step (2)
Expect after the cooling of water-cooling tower tower reactor cooler again by pump circulation to water-cooling tower, the throat-fed from water-cooling tower middle and lower part；
The kettle of water-cooling tower goes out waste water and goes foam removal equipment by pumping as recirculated water after the cooling of water-cooling tower tower reactor cooler, for washing
It is re-used as arranging outside waste liquid after going out the particulate matter after reacting in mixed gas.
Preferably, energy-saving method in above-mentioned neoprene production process, it is cold used in the water-cooling tower tower reactor cooler
But 29 DEG C of coolant-temperature gage.(29 DEG C of coolant temperature used in cooler, recirculated water (referring to material) are cooled to 35 DEG C or so)
Preferably, energy-saving method in above-mentioned neoprene production process, the water-cooling tower tower reactor cooler is shell
Formula heat exchanger or efficient plate-type heat-exchanger.
Preferably, energy-saving method in above-mentioned neoprene production process, water-cooling tower is packed tower in the step (2)
Or plate column.
The beneficial effects of the invention are as follows：
Energy-saving method in above-mentioned neoprene production process, foam removal is carried out by the mixed gas come out after dimerization reaction
Cooled down again with a water after processing, and water-cooling tower kettle material cooling Posterior circle is recycled, directly reduced in water-cooling tower
Water consumption, with wastewater discharge in acetylene dimer workshop section is reduced, the waste water of outer row is also used as foam removal water again
Utilize.
Brief description of the drawings
Fig. 1 is the process flow chart of energy-saving method in neoprene production process of the present invention.
In figure：T01- water-cooling towers, M01- traps, V01- gas-liquid separators, E01- water-cooling tower tower reactor coolers, P01-
Pump.
Embodiment
Technical solution of the present invention is further described with reference to specific embodiment.
Embodiment 1
As shown in Figure 1, energy-saving method in a kind of neoprene production process, carries out following technique at dimerization workshop section
Operation：
(1) foam removal equipment is entered after the mixed gas autoreaction tower top effusion that temperature is 80 DEG C after dimerization reaction, it is described to remove
Foam equipment is connected by flange with gas-liquid separator V01 by trap M01 and formed, and the trap is placed in gas-liquid separator top
Portion, the trap are spurting three-port structure, and the mixed gas after dimerization reaction is from the side of the three-port structure of the trap
Face one end enters, liquid entered by interpolation pipe from top one end of the three-port structure of the trap in trap and with gas
Body comes into full contact with, and the bottom end of gas-liquid mixture from the three-port structure of the trap is entered directly into gas-liquid separator,
Using existing density contrast between gas and liquid, the particulate matter in gas is entered in liquid phase, the gas without particulate matter from
To go out at the top of gas-liquid separator, the liquid phase containing particulate matter is discharged from the bottom of gas-liquid separator, so that gas-liquid is separated,
Remove the particulate matter in mixed gas；
(2) gas phase after foam removal equipment enters back into water-cooling tower (packed tower) T01 lower parts, under Ta Nei and tower top spray
12-15 DEG C of the industry water counter current contacting come, directly cools down and washes out the impurity of entrained with；
(3) preliminary reaction gas after cooling is escaped from water cooling tower top, and wherein moisture content is further removed into brine cooling tower
And most high boiling point organic compound；The kettle material of water-cooling tower passes through pump again after water-cooling tower tower reactor cooler E01 coolings
P01 is recycled to water-cooling tower, the throat-fed from water-cooling tower middle and lower part；The kettle of water-cooling tower goes out waste water and is cooled down by water-cooling tower tower reactor
As recirculated water by pumping the foam removal equipment gone in step (1), 35 DEG C of circulating water temperature, after washing out reaction after device cooling
Be re-used as arranging outside waste liquid after particulate matter in mixed gas, used water-cooling tower tower reactor cooler be shell-and-tube heat exchanger (
Efficient plate-type heat-exchanger can be used), 29 DEG C of cooling water temperature used in water-cooling tower tower reactor cooler.
The neoprene of a certain factory is handled using the above method, produces 40000 tons per year, after being transformed using this new technology, dimerization
The tower reactor internal circulating load 240t/hr of workshop section's water-cooling tower, a water consumption are reduced to 40t/hr by original 120t/hr, and particularly
Importantly, the discharge capacity of waste liquid is down to 40t/hr.
The above-mentioned detailed description carried out with reference to embodiment to energy-saving method in the neoprene production process, is explanation
Property rather than it is limited, can include several embodiments according to limited scope, therefore of the invention overall not departing from
Changing and modifications under design, should belong within protection scope of the present invention.
Claims (4)
- A kind of 1. energy-saving method in neoprene production process, it is characterised in that：Following technique is carried out at dimerization workshop section Operation：(1) foam removal equipment, the foam removal are entered after the mixed gas autoreaction tower top effusion that the temperature after dimerization reaction is 80 DEG C Equipment is connected by flange with gas-liquid separator by trap and formed, and the trap is placed at the top of gas-liquid separator, described to catch Storage is spurting three-port structure, the mixed gas after dimerization reaction from side one end of the three-port structure of the trap into Enter, liquid is entered in trap from top one end of the three-port structure of the trap by interpolation pipe and fully connect with gas Touch, the bottom end of gas-liquid mixture from the three-port structure of the trap is entered directly into gas-liquid separator, utilizes gas The existing density contrast between liquid, the particulate matter in gas are entered in liquid phase, and the gas without particulate matter is from gas-liquid separation Go out at the top of device, the liquid phase containing particulate matter is discharged from the bottom of gas-liquid separator, so that gas-liquid is separated, and then is passed through The mode of first gas-liquid mixed gas-liquid separation again removes the particulate matter in mixed gas；(2) gas phase after foam removal equipment enters back into water-cooling tower lower part, in 12-15 DEG C of the work that Ta Nei and tower top spray Industry water counter current contacting, directly cools down and washes out the impurity of entrained with, wherein, the kettle material of water-cooling tower is cold by water-cooling tower tower reactor But again by pump circulation to water-cooling tower after device cooling, the throat-fed from water-cooling tower middle and lower part；The kettle of water-cooling tower goes out waste water warp Cross after the cooling of water-cooling tower tower reactor cooler and foam removal equipment is gone by pumping as recirculated water, after being reacted for wash-off in mixed gas Particulate matter after be re-used as arranging outside waste liquid；(3) preliminary reaction gas after cooling is escaped from water cooling tower top, and wherein moisture content and big is further removed into brine cooling tower Partial high boiling point organic compound, the industry water discharged in water-cooling tower enter step the foam removal equipment in (1).
- 2. energy-saving method in neoprene production process according to claim 1, it is characterised in that：The water-cooling tower Cooling water temperature used in tower reactor cooler is 29 DEG C.
- 3. energy-saving method in neoprene production process according to claim 1, it is characterised in that：The water-cooling tower Tower reactor cooler is shell-and-tube heat exchanger or efficient plate-type heat-exchanger.
- 4. energy-saving method in neoprene production process according to claim 1, it is characterised in that：The step (2) water-cooling tower is packed tower or plate column in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511014641.3A CN105418811B (en) | 2015-12-29 | 2015-12-29 | Energy-saving method in neoprene production process |
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| CN201511014641.3A CN105418811B (en) | 2015-12-29 | 2015-12-29 | Energy-saving method in neoprene production process |
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| CN105418811A CN105418811A (en) | 2016-03-23 |
| CN105418811B true CN105418811B (en) | 2018-04-13 |
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| CN105944542A (en) * | 2016-06-30 | 2016-09-21 | 华东理工大学 | High-efficiency hydrogen sulfide gas absorption device |
Citations (3)
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|---|---|---|---|---|
| CN201371031Y (en) * | 2009-01-20 | 2009-12-30 | 娄爱娟 | Jacking-in type flue gas desulfurizing device |
| CN101743258A (en) * | 2007-07-16 | 2010-06-16 | 道达尔石油化学产品研究弗吕公司 | Method for optimizing energy efficiency in a polymerization process |
| CN204447679U (en) * | 2014-12-19 | 2015-07-08 | 中国石油天然气集团公司 | A kind of exhaust treatment system for ketone-benzol dewaxing device |
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2015
- 2015-12-29 CN CN201511014641.3A patent/CN105418811B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743258A (en) * | 2007-07-16 | 2010-06-16 | 道达尔石油化学产品研究弗吕公司 | Method for optimizing energy efficiency in a polymerization process |
| CN201371031Y (en) * | 2009-01-20 | 2009-12-30 | 娄爱娟 | Jacking-in type flue gas desulfurizing device |
| CN204447679U (en) * | 2014-12-19 | 2015-07-08 | 中国石油天然气集团公司 | A kind of exhaust treatment system for ketone-benzol dewaxing device |
Non-Patent Citations (2)
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| 氯丁橡胶的生产与发展;黄云翔;《中国氯碱》;19940915;第18-20页 * |
| 用冷冻凝聚工艺试生产通用型氯丁橡胶;刘建雄;《合成橡胶工业》;19991115;第22卷(第6期);第323-324页 * |
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