CN203790798U - Purification treatment system for waste gas produced in production process of furfural - Google Patents
Purification treatment system for waste gas produced in production process of furfural Download PDFInfo
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- CN203790798U CN203790798U CN201420154059.1U CN201420154059U CN203790798U CN 203790798 U CN203790798 U CN 203790798U CN 201420154059 U CN201420154059 U CN 201420154059U CN 203790798 U CN203790798 U CN 203790798U
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Abstract
The utility model relates to a purification treatment system for waste gas produced in production process of furfural. The purification treatment system for waste gas produced in production process of furfural structurally comprises a cyclone separator, a first adsorption tower, a second adsorption tower, a condenser, a recovery tank, a steam boiler and other equipment. The purification treatment system provided by the utility model can send the waste gas produced in various links in production of furfural into the first adsorption tower or the second adsorption tower which are loaded with a molecular sieve and harmful organic matters in the waste gas is subjected to atmospheric absorption. When adsorption is close to saturation, the adsorption is stopped and desorption treatment is performed on the molecular sieve to restore the effects. The desorption treatment of the molecular sieve is performed as follows: introducing steam and heating the molecular sieve to 200-300 DEG C to gasify and remove the harmful organic matters adsorbed in the molecular sieve, specially collecting harmful gas produced by desorption and carrying out centralized harmless treatment onthe enriched organic matter easily. The purification treatment system provided by the utility model can ensure the continuous operation of production of furfural and purification treatment of the waste gas.
Description
Technical field
The utility model relates to a kind of furfural production equipment, specifically waste gas produced cleaning treatment system in a kind of furfural production process.
Background technology
Waste gas in furfural production is mainly created in following three links: the waste gas that 1, deslagging produces; The fixed gas producing when 2, waste water is processed through evaporimeter; 3, the waste gas that the volatilization of wastewater disposal basin harmful substance produces.Its main component comprises organic acid (formic acid, acetic acid), formaldehyde, acetone etc.
Processing for the waste gas producing in furfural production is a relatively stubborn problem.Furfural enterprise mostly was extensive management in the past, and mostly slag canopy is the structure of outdoor formula, and pernicious gas directly discharges; The pernicious gas volatilizing from waste water is direct discharge equally, and these have all caused very large pollution to ecological environment.
Be accompanied by the continuous enhancing of social environment consciousness, the necessary closed slag canopy of building of newly-built furfural enterprise's requirement, the waste gas producing in wastewater disposal basin also requires airtight collection.But for the collected waste gas of closed structure, also there is no a kind of economy and good processing mode at present, thereby just can not process well the waste gas that furfural production process produces yet.
Utility model content
The purpose of this utility model is just to provide waste gas produced cleaning treatment system in a kind of furfural production process, with solve the waste gas of collection can not be simple and convenient carry out the problem of purified treatment.
The utility model is achieved in that waste gas produced cleaning treatment system in a kind of furfural production process, includes:
Cyclone separator, for collecting the waste gas that furfural production process produces and removing the solid impurity in waste gas;
The first adsorption tower and the second adsorption tower are equipped with respectively molecular sieve in tower body, for adsorbing the harmful organic substance that enters the waste gas in tower; On tower body, be respectively arranged with adsorption orifice, evacuation port, steam port and tail gas extraction mouth; On described adsorption orifice, by absorption valve, connect the pipeline that leads to described cyclone separator respectively, to collect containing harmful organic waste gas; On described evacuation port, be connected to respectively exhaust-valve; On described steam port, by steam valve, connect the pipeline that leads to boiler-steam dome respectively, to utilize the steam passing into take off adsorption treatment to described molecular sieve; On described tail gas extraction mouth, by tail gas extraction valve, connect the pipeline that leads to condenser respectively, so that the attached pernicious gas dealing of desorption is sent into condenser;
Condenser, joins with described the first adsorption tower and described the second adsorption tower by pipeline and tail gas extraction valve respectively, for processing that the de-pernicious gas adsorbing is lowered the temperature; And
Recycling can, joins by pipeline and described condenser, takes off the pernicious gas adsorbing, to carry out harmless treatment for special collection.
The utility model can be connected by described exhaust-valve the pipeline that leads to boiler furnace respectively with on described evacuation port on described the second adsorption tower at described the first adsorption tower, to provide, can be used as the Purge gas that fuel is used.
The utility model also comprises:
Steam boiler, for receiving the Purge gas of using as fuel transmitting by described the first adsorption tower or described the second adsorption tower, and is respectively described the first adsorption tower or described the second adsorption tower provides desorption attached steam.
The utility model can be by the waste gas producing in each link of furfural production, first by cyclone separator, remove the solid impurities such as dust wherein, then send in the first adsorption tower or the second adsorption tower that molecular sieve is housed, harmful organic substance in waste gas is carried out to normal pressure absorption, gas after purified treatment can be directly emptying by exhaust-valve, or enter in the burner hearth of boiler, as fuel, use, to save the energy.Molecular sieve adsorption in adsorption tower is after a period of time, and absorption approaches saturated, and adsorption efficiency declines, and now should stop adsorption cleaning, then molecular sieve is taken off to adsorption treatment, so that it recovers effect.The de-adsorption treatment of molecular sieve can adopt heating, by passing into steam, molecular sieve is heated to 200-300 ℃, makes the harmful organic substance adsorbing in molecular sieve gasify, the pernicious gas that desorption is attached produced collects specially, and the organic matter of enrichment is more easily concentrated and carried out harmless treatment.
The utility model has been developed a kind of new system of furfural dregs exhaust-gas treatment, alternately absorption and desorption by two adsorption towers are attached, can replace and process continuously the harmful organic substances such as organic acid (formic acid, acetic acid) contained in the waste gas that furfural production produces, formaldehyde, acetone, efficiently solve the purified treatment problem of harmful substance in the waste gas of furfural production, and guaranteed carrying out continuously of furfural production.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present utility model.
In figure: 1, cyclone separator, the 2, first adsorption tower, the 3, second adsorption tower, 4, condenser, the 5, recycling can, 6, first absorption valve, 7, the second absorption valve, the 8, first tail gas extraction valve, the 9, second tail gas extraction valve, 10, first emptying valve, 11, second emptying valve, the 12, first steam valve, 13, the second steam valve, 14, the first blowoff valve, the 15, second blowoff valve, the 16, the 3rd blowoff valve.
The specific embodiment
As shown in Figure 1, the utility model includes the equipment such as cyclone separator 1, the first adsorption tower 2, the second adsorption tower 3, condenser 4, recycling can 5 and steam boiler (not shown).Wherein:
The air inlet of cyclone separator 1 and furfural production system are joined, the waste gas producing for collecting furfural production process, and remove the solid impurities such as dust in waste gas; Gas outlet at cyclone separator 1 connects the connecting pipeline that leads to the first adsorption tower 2 and the second adsorption tower 3; Sewage draining exit in cyclone separator 1 bottom is connected to the 3rd blowoff valve 16.
The first adsorption tower 2 is molecular sieves that layered arrangement is housed in tower body, for adsorbing the harmful organic substance that enters the waste gas in tower; On the tower body of the first adsorption tower 2, be respectively arranged with adsorption orifice, evacuation port, steam port, tail gas extraction mouth and sewage draining exit---on adsorption orifice, by the first absorption valve 6, be connected the pipeline that leads to cyclone separator 1, to collect containing harmful organic waste gas; On evacuation port, by first emptying valve 10, connect the pipeline that leads to boiler furnace, to provide to boiler, can be used as the Purge gas that fuel is used; On steam port, by the first steam valve 12, connect the pipeline that leads to boiler-steam dome, to utilize the steam that passes into take off adsorption treatment to molecular sieve wherein; On tail gas extraction mouth, by the first tail gas extraction valve 8, connect the pipeline that leads to condenser 4, so that the attached pernicious gas dealing of desorption is sent in condenser 4; On the sewage draining exit of bottom, be connected to the first blowoff valve 14.
The structure of the second adsorption tower 3, setting and annexation etc. are corresponding identical with the first adsorption tower 2 all, and just adsorption orifice, evacuation port, steam port, the tail gas extraction mouth on its tower body is connected respectively with on sewage draining exit and what arrange is the second absorption valve 7, second emptying valve 11, the second steam valve 13, the second tail gas extraction valve 9 and the second blowoff valve 15 etc.
Condenser 4 joins by pipeline and the first tail gas extraction valve 8 and the first adsorption tower 2, by pipeline and the second tail gas extraction valve 9 and the second adsorption tower 3, join, for processing that the de-pernicious gas adsorbing on the molecular sieve of the first adsorption tower 2 or the second adsorption tower 3 is lowered the temperature.
Recycling can 5 joins by pipeline and condenser 4, takes off the pernicious gas adsorbing, to carry out harmless treatment for special collection.
Steam boiler is for receiving the Purge gas of using as fuel transmitting by the first adsorption tower 2 or the second adsorption tower 3, and is respectively the high-temperature steam that the first adsorption tower 2 or the second adsorption tower 3 provide the attached use of desorption.
Specific works process of the present utility model is:
Waste gas/tail gas that a, each link of furfural production produce, after collecting, enters cyclone separator 1, after removing the solid impurities such as dust, send the adsorption tower in operating conditions.
B, open the first absorption valve 6, close the second absorption valve 7, the waste gas that cyclone separator 1 is sent enters the first adsorption tower 2, by the molecular sieve in tower body, the harmful organic substance in gas is carried out to adsorption cleaning, purified gas can connect to guide in steam boiler by first emptying valve 10 and burn, and also can pass through the direct emptying of first emptying valve 10.
C, after the first adsorption tower 2 purifies absorption certain hours, the absorption of molecular sieve wherein approaches saturated, now exchange work adsorption tower, the the first absorption valve 6 and the first emptying valve 10 that are about on the first adsorption tower 2 are closed, the first tail gas extraction valve 8 and the first steam valve 12 are opened, and make the first adsorption tower 2 enter the attached duty of desorption; The absorption valve 7 of second on the second adsorption tower 3 and second emptying valve 11 are opened, the second tail gas extraction valve 9 cuts out, and makes the second adsorption tower 3 start absorption work again.
D, after attached the completing of the first absorption tower 2 desorptions, close the first steam valve 12, make the first absorption tower 2 naturally cool to room temperature.
E, after second absorption tower 3 purifies absorption certain hours, the absorption of molecular sieve wherein approaches saturated, now exchange work adsorption tower, the the second absorption valve 7 and the second emptying valve 11 that are about on the second adsorption tower 3 are closed, the second tail gas extraction valve 9 and the second steam valve 13 are opened, and make the second adsorption tower 3 enter the attached duty of desorption; The absorption valve 6 of first on the first adsorption tower 2 and first emptying valve 10 are opened, the first tail gas extraction valve 8 cuts out, and makes the first adsorption tower 2 restart absorption work again.
F, after attached the completing of second absorption tower 3 desorptions, close the second steam valve 13, make second absorption tower 3 naturally cool to room temperature.
G, from step b, repeat.
Claims (3)
1. a waste gas produced cleaning treatment system in furfural production process, is characterized in that, includes:
Cyclone separator, for collecting the waste gas that furfural production process produces and removing the solid impurity in waste gas;
The first adsorption tower and the second adsorption tower are equipped with respectively molecular sieve in tower body, for adsorbing the harmful organic substance that enters the waste gas in tower; On tower body, be respectively arranged with adsorption orifice, evacuation port, steam port and tail gas extraction mouth; On described adsorption orifice, by absorption valve, connect the pipeline that leads to described cyclone separator respectively, to collect containing harmful organic waste gas; On described evacuation port, be connected to respectively exhaust-valve; On described steam port, by steam valve, connect the pipeline that leads to boiler-steam dome respectively, to utilize the steam passing into take off adsorption treatment to described molecular sieve; On described tail gas extraction mouth, by tail gas extraction valve, connect the pipeline that leads to condenser respectively, so that the attached pernicious gas dealing of desorption is sent into condenser;
Condenser, joins with described the first adsorption tower and described the second adsorption tower by pipeline and tail gas extraction valve respectively, for processing that the de-pernicious gas adsorbing is lowered the temperature; And
Recycling can, joins by pipeline and described condenser, takes off the pernicious gas adsorbing, to carry out harmless treatment for special collection.
2. waste gas produced cleaning treatment system in furfural production process according to claim 1, it is characterized in that, at described the first adsorption tower, by described exhaust-valve, be connected the pipeline that leads to boiler furnace respectively with on described evacuation port on described the second adsorption tower, to provide, can be used as the Purge gas that fuel is used.
3. waste gas produced cleaning treatment system in furfural production process according to claim 2, is characterized in that, also comprises:
Steam boiler, for receiving the Purge gas of using as fuel transmitting by described the first adsorption tower or described the second adsorption tower, and is respectively described the first adsorption tower or described the second adsorption tower provides desorption attached steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154059.1U CN203790798U (en) | 2014-04-01 | 2014-04-01 | Purification treatment system for waste gas produced in production process of furfural |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420154059.1U CN203790798U (en) | 2014-04-01 | 2014-04-01 | Purification treatment system for waste gas produced in production process of furfural |
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| CN203790798U true CN203790798U (en) | 2014-08-27 |
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| CN201420154059.1U Expired - Fee Related CN203790798U (en) | 2014-04-01 | 2014-04-01 | Purification treatment system for waste gas produced in production process of furfural |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311922A (en) * | 2015-10-21 | 2016-02-10 | 江苏兆年涂装科技有限公司 | Comprehensive waste gas processing system |
| CN113262580A (en) * | 2021-06-09 | 2021-08-17 | 江西理工大学 | Acetic acid recovery method for furfural production waste gas |
-
2014
- 2014-04-01 CN CN201420154059.1U patent/CN203790798U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311922A (en) * | 2015-10-21 | 2016-02-10 | 江苏兆年涂装科技有限公司 | Comprehensive waste gas processing system |
| CN113262580A (en) * | 2021-06-09 | 2021-08-17 | 江西理工大学 | Acetic acid recovery method for furfural production waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 054000 Zhongxing Street East, Xingtai Development Zone, Hebei, China, No. 1666 Patentee after: Bran Limited by Share Ltd Address before: 054000 Zhongxing Street East, Xingtai Development Zone, Hebei, China, No. 1666 Patentee before: China Furfural Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20190401 |