CN205965432U - 4 [ 2 (The acetamido), ethyl ] benzenesulfonyl choride production tail gas HCl absorbing device - Google Patents

4 [ 2 (The acetamido), ethyl ] benzenesulfonyl choride production tail gas HCl absorbing device Download PDF

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Publication number
CN205965432U
CN205965432U CN201620943325.8U CN201620943325U CN205965432U CN 205965432 U CN205965432 U CN 205965432U CN 201620943325 U CN201620943325 U CN 201620943325U CN 205965432 U CN205965432 U CN 205965432U
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falling
acetamido
ethyl
tail gas
film absorber
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CN201620943325.8U
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Chinese (zh)
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姜近仁
蔡永宏
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Abstract

The utility model provides a 4 [ 2 (The acetamido), ethyl ] benzenesulfonyl choride production tail gas HCl absorbing device, 4 [ 2 (The acetamido), ethyl ] benzenesulfonyl choride production tail gas at first gets into buffer tank I, then get into the falling liquid film absorber, the liquid phase of going into the falling liquid film absorber with I pump of acid resisting pump is carried out the mass transfer and is absorbed hydrogen chloride (HCl) gas in the tail gas, then get into filling device, the liquid phase of going into filling device with II pumps of acid resisting pump is carried out the mass transfer and is further absorbed hydrogen chloride (HCl) gas in the tail gas, it is last via the absorption that circulates of hydrologic cycle vacuum pump, and discharge standards are reached, arrange in the atmospheric environment. The utility model discloses it is sour to obtain the finished product, has realized the gaseous recycle of hydrogen chloride (HCl).

Description

4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant
Technical field
The present invention relates to a kind of 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, belong to In technical field of fine.
Background technology
Chlorosulfonation is particularly significant link to 4- [2- (acetamido) ethyl] benzene sulfonyl chloride in process of production, tradition Using being malleation chlorosulfonation, N- acetylbenzene ethamine is slowly added in chlorosulfonic acid liquid technique, in the course of reaction of chlorosulfonation constantly Discharge hydrogen chloride(HCl)Gas, product burst size per ton is 600kg, due to hydrogen chloride(HCl)The hydrophilic power of gas By force, using flattened absorbent, yield about 68-72% about, remaining hydrogen chloride(HCl)Gas is through tail gas simple absorption, sprinkling device After sprinkling, a large amount of hydrochloric acid waste waters enter wastewater disposal basin, separately have a small amount of hydrogen chloride(HCl)Gas is dispersed in the air, causes fog steaming, Choke to obtain people's nasal mucus direct current, serious environment pollution, injures operator.Product per ton there are about 31% hydrochloric acid 1400Kg (conversion) and runs off After entering waste water treatment station, 30%NaOH solution is needed to process, control expense is larger, and environmental improvement pressure is big.
Content of the invention
The technical problems to be solved in the utility model is to provide a kind of 4- [2- (acetamido) ethyl] benzene sulfonyl chloride to produce Tail gas HCl absorption plant, it is intended to change existing tail gas absorption mode, solves wastewater problem, purify air quality, improves economic effect Benefit, plays a positive role to environmental protection, has significant economic benefit and social benefit.
In order to solve above-mentioned technical problem, the technical solution of the utility model is:
A kind of 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, including surge tank I, falling liquid film Absorber, acid-proof pump I, vacuum storage tank I, sizer, vacuum storage tank II, acid-proof pump II, surge tank II and water circulation vacuum pump, Surge tank I import produces exhaust pipe with 4- [2- (acetamido) ethyl] benzene sulfonyl chloride and is connected, and pipeline is passed through in surge tank I outlet It is connected with falling-film absorber top gas phase import, falling-film absorber bottom gaseous phase outlet is entered with sizer bottom gas phase by pipeline Mouth connects, and the outlet of sizer top gas phase is connected with surge tank II import by pipeline, and surge tank II gas out is via water Arrange after circulation vacuum pump in atmospheric environment, the outlet of sizer bottom liquid phases is connected with vacuum storage tank II by pipeline, acid-proof pump II feed tube is connected with vacuum storage tank II;The drain pipe of acid-proof pump II is divided into three arms, respectively with sizer top even The arm connecing be connected with vacuum storage tank II with valvular backflow arm and the band that is connected with vacuum storage tank I is valvular Arm;The outlet of falling-film absorber bottom liquid phases is connected with vacuum storage tank I by pipeline, the feed tube of acid-proof pump I and vacuum storage tank I Connect;The drain pipe of acid-proof pump I is divided into three arms, the arm being respectively connected with falling-film absorber upper aqueous phase import and Vacuum storage tank I connect band valvular backflow arm and with finished acid exhaust outlet.
Above-mentioned 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, loads modified in sizer Filler.
Above-mentioned 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, and falling-film absorber is graphite Modified polypropene falling film absorbre, including under the upper cover of polypropylene material, the device body of polypropylene material, polypropylene material End socket, the suction of the upper fixed tube sheet of polypropylene material, the lower floating tubesheet of polypropylene material and graphite modified polypropylene material Closed tube is restrained, and falling-film absorber top gas phase import and falling-film absorber upper aqueous phase import are arranged at upper cover, falling film absorption The outlet of device bottom liquid phases and falling-film absorber bottom gaseous phase outlet are arranged at low head.
Above-mentioned 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, positioned at upper fixed tube sheet and Setting cooling water inlet and coolant outlet with device between lower floating tubesheet, correspondingly, setting in device body extends shell side The deflection plate of polypropylene material.
Above-mentioned 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, and every root absorption pipe upper end sets Put overflow pipe, overflow pipe is located above upper fixed tube sheet, overflow pipe vertically-arranged, the top indentation of overflow pipe.
Above-mentioned 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, and graphite modified polypropylene drops Flinger ring is set at the fluid inlet of membrance-type absorber upper cover, and flinger ring is fixed on graphite modified polyacrylic falling-film absorption instrument On upper cover.
4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas and initially enters surge tank I, subsequently into falling film absorption Device, the liquid phase pumping into falling-film absorber with acid-proof pump I carries out mass transfer and absorbs hydrogen chloride in tail gas(HCl)Gas, subsequently into filling out Glassware, the liquid phase pumping into sizer with acid-proof pump II carries out mass transfer and absorbs hydrogen chloride in tail gas further(HCl)Gas, after warp Absorption is circulated by water circulation vacuum pump, reaches discharge standard, be discharged in atmospheric environment.This utility model can also obtain into Product acid is it is achieved that to hydrogen chloride(HCl)The recycling of gas.This utility model solves wastewater problem, purify air quality, carries High economic benefit, plays a positive role to environmental protection, has significant economic benefit and social benefit.
Brief description
Below in conjunction with the accompanying drawings this utility model is described in further detail:
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is a kind of structural representation of falling-film absorber.
Fig. 3 is the partial schematic diagram of Fig. 2.
In figure:1 surge tank I, 2 acid-proof pumps I, 3 vacuum storage tanks I, 4 falling-film absorbers, 5 sizers, 6 vacuum storage tanks II, 7 is resistance to Sour pump II, 8 surge tanks II, 9 water circulation vacuum pumps, 10 low heads, 11 times floating tubesheets, 12 device bodies, 13 absorption tube tube banks, 14 Upper fixed tube sheet, 15 upper covers, 17 falling-film absorber upper aqueous phase imports, 18 deflection plates, 20 falling-film absorber bottom liquid phases Outlet, 21 overflow pipes, 22 flinger rings.
Specific embodiment
As shown in figure 1, a kind of 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produces tail gas HCl absorption plant, including slow Rush tank I 1, falling-film absorber 4, acid-proof pump I 2, vacuum storage tank I 3, sizer 5, vacuum storage tank II 6, acid-proof pump II 7, surge tank II 8 and water circulation vacuum pump 9, surge tank I import produces exhaust pipe with 4- [2- (acetamido) ethyl] benzene sulfonyl chloride and is connected, Surge tank I outlet is connected with falling-film absorber top gas phase import by pipeline, and falling-film absorber bottom gaseous phase outlet passes through pipe Road is connected with the gas phase import of sizer bottom, and the outlet of sizer top gas phase is connected with surge tank II import by pipeline, buffering Tank II gas out is arranged in atmospheric environment via after water circulation vacuum pump, the outlet of sizer bottom liquid phases by pipeline with true Empty storage tank II connects, and the feed tube of acid-proof pump II is connected with vacuum storage tank II;The drain pipe of acid-proof pump II is divided into three arms, point It is not the band valvular backflow arm and and vacuum storage tank that the arm being connected with sizer top is connected with vacuum storage tank II The valvular arm of band of I connection;The outlet of falling-film absorber bottom liquid phases is connected with vacuum storage tank I by pipeline, acid-proof pump I Feed tube is connected with vacuum storage tank I;The drain pipe of acid-proof pump I is divided into three arms, respectively with falling-film absorber upper aqueous phase The band that is connected with vacuum storage tank I of arm that import connects is valvular flow back arm and with finished acid exhaust outlet.
Load modified filler in sizer, gas-to-liquid contact face can be effectively improved, and reduce convective resistance, make system keep one Determine negative pressure.
Falling-film absorber can be using common falling-film absorber, it would however also be possible to employ following graphite modified polypropylene falling film types Absorber:
Graphite modified polypropylene falling film type absorption tower includes the upper cover 15 of polypropylene material, the tower body of polypropylene material 12nd, the low head 10 of polypropylene material, the upper fixed tube sheet 14 of polypropylene material, the lower floating tubesheet 11 of polypropylene material and The absorption tube tube bank 13 of graphite modified polypropylene material.Falling-film absorber top gas phase import and falling-film absorber upper aqueous phase enter Mouth 17 is arranged at upper cover, and falling-film absorber bottom liquid phases outlet 20 and falling-film absorber bottom gaseous phase outlet are arranged at lower envelope Head.Graphite modified polypropylene falling film type absorption tower is not corroded in the environment of corrosive gas, lightweight, less scaling, make Use life-span length.Walk absorbent in absorption tube pipe and absorb gas, between pipe, walk cooling water.
Setting cooling water inlet and coolant outlet on tower body between upper fixed tube sheet and lower floating tubesheet, accordingly Ground, setting in tower body extends the deflection plate 18 of the polypropylene material of shell side.In absorption process, the temperature of hydrochloric acid will raise, when During with the higher waste gas of water absorbing hydrogen chloride concentration, heat of solution need to be removed with the type of cooling, to improve absorption efficiency.Using shell side Cooling water takes away liberated heat and tail gas sensible heat, can be good at controlling absorption liquid temp, improves absorption rate.
Every root absorption pipe upper end setting overflow pipe 21, overflow pipe is located above upper fixed tube sheet, overflow pipe vertically-arranged, overflow pipe Top indentation.The effect of overflow pipe is so that liquid flooding enters in pipe, is in membranaceous flowing along Vertically tube inwall Contact with the gas of tube hub flowing and absorb.The top indentation of overflow pipe, the membranaceous flowing of formation is more preferable.
At the fluid inlet of graphite modified polypropylene falling film type absorption tower upper cover, flinger ring 22 is set, flinger ring is fixed on On the upper cover of graphite modified polypropylene falling film type absorption tower.
This utility model, on the basis of flattened absorbent device, increases sizer, using modified filler, increases water-circulating pump (Vacuum pump set), reaction cycle absorption plant under micro-vacuum state, by hydrogen chloride(HCl)Gas absorbs through falling-film absorber, Absorb through sizer again, be not completely absorbed a small amount of hydrogen chloride(HCl)Gas is all absorbed by water-circulating pump, thoroughly solves waste water Problem, purify air quality, increase economic efficiency, environmental protection played a positive role, have significant economic benefit and Social benefit.

Claims (6)

1. a kind of 4- [2- (acetamido) ethyl] benzene sulfonyl chloride produce tail gas HCl absorption plant it is characterised in that:Including buffering Tank I, falling-film absorber, acid-proof pump I, vacuum storage tank I, sizer, vacuum storage tank II, acid-proof pump II, surge tank II and water follow Ring vacuum pump, surge tank I import produces exhaust pipe with 4- [2- (acetamido) ethyl] benzene sulfonyl chloride and is connected, and surge tank I goes out Mouth is connected with falling-film absorber top gas phase import by pipeline, and falling-film absorber bottom gaseous phase outlet passes through pipeline and sizer Bottom gas phase import connects, the outlet of sizer top gas phase is connected with surge tank II import by pipeline, and surge tank II is out Gas is arranged in atmospheric environment via after water circulation vacuum pump, and the outlet of sizer bottom liquid phases is by pipeline with vacuum storage tank II even Connect, the feed tube of acid-proof pump II is connected with vacuum storage tank II;The drain pipe of acid-proof pump II is divided into three arms, respectively and filler The arm that device top connects is connected with vacuum storage tank II with valvular arm and the band being connected with vacuum storage tank I of flowing back Valvular arm;Falling-film absorber bottom liquid phases outlet be connected with vacuum storage tank I by pipeline, the feed tube of acid-proof pump I and Vacuum storage tank I connects;The drain pipe of acid-proof pump I is divided into three arms, is respectively connected with falling-film absorber upper aqueous phase import The band that is connected with vacuum storage tank I of arm valvular backflow arm and with finished acid exhaust outlet.
2. 4- [2- (acetamido) ethyl] benzene sulfonyl chloride according to claim 1 produces tail gas HCl absorption plant, and it is special Levy and be:Modified filler is loaded in sizer.
3. 4- [2- (acetamido) ethyl] benzene sulfonyl chloride according to claim 1 produces tail gas HCl absorption plant, and it is special Levy and be:Falling-film absorber is graphite modified polyacrylic falling-film absorption instrument, including the upper cover of polypropylene material, polypropylene material The device body of matter, the low head of polypropylene material, the upper fixed tube sheet of polypropylene material, the lower floating tubesheet of polypropylene material and Absorption tube tube bank, falling-film absorber top gas phase import and the falling-film absorber upper aqueous phase import of graphite modified polypropylene material It is arranged at upper cover, the outlet of falling-film absorber bottom liquid phases and falling-film absorber bottom gaseous phase outlet are arranged at low head.
4. 4- [2- (acetamido) ethyl] benzene sulfonyl chloride according to claim 3 produces tail gas HCl absorption plant, and it is special Levy and be:Setting cooling water inlet and coolant outlet with device between upper fixed tube sheet and lower floating tubesheet, accordingly Ground, setting in device body extends the deflection plate of the polypropylene material of shell side.
5. 4- [2- (acetamido) ethyl] benzene sulfonyl chloride according to claim 3 produces tail gas HCl absorption plant, and it is special Levy and be:Every root absorption pipe upper end setting overflow pipe, overflow pipe is located above upper fixed tube sheet, overflow pipe vertically-arranged, overflow pipe Top indentation.
6. 4- [2- (acetamido) ethyl] benzene sulfonyl chloride according to claim 3 produces tail gas HCl absorption plant, and it is special Levy and be:Flinger ring is set at the fluid inlet of graphite modified polyacrylic falling-film absorption instrument upper cover, and flinger ring is fixed on stone On black modified polypropene falling film absorbre upper cover.
CN201620943325.8U 2016-08-26 2016-08-26 4 [ 2 (The acetamido), ethyl ] benzenesulfonyl choride production tail gas HCl absorbing device Expired - Fee Related CN205965432U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107754566A (en) * 2017-09-01 2018-03-06 上海氯碱化工股份有限公司 Hydrogen chloride absorption device in catalytic oxidation of hydrogen chloride for preparing chlorine process gas
CN108816169A (en) * 2018-05-28 2018-11-16 天津市科德化工有限公司 industrial sulfonation production system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107754566A (en) * 2017-09-01 2018-03-06 上海氯碱化工股份有限公司 Hydrogen chloride absorption device in catalytic oxidation of hydrogen chloride for preparing chlorine process gas
CN108816169A (en) * 2018-05-28 2018-11-16 天津市科德化工有限公司 industrial sulfonation production system

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20170222

Termination date: 20210826