CN105233622A - VOC (volatile organic compound) waste gas treatment device and method for pharmaceutical and chemical industry - Google Patents
VOC (volatile organic compound) waste gas treatment device and method for pharmaceutical and chemical industry Download PDFInfo
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- CN105233622A CN105233622A CN201510732771.4A CN201510732771A CN105233622A CN 105233622 A CN105233622 A CN 105233622A CN 201510732771 A CN201510732771 A CN 201510732771A CN 105233622 A CN105233622 A CN 105233622A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a VOC (volatile organic compound) waste gas treatment device for pharmaceutical and chemical industry. The VOC waste gas treatment device, along a waste gas treatment process, sequentially comprises an acid mist adsorption tower, an active carbon adsorption bed device, a main exhaust fan and a chimney; the active carbon adsorption bed device is further connected with a catalytic combustion device; the catalytic combustion device is connected with a desorption fan and a spraying tower; one end of the desorption fan is connected with the tail end of the catalytic combustion device; the other end of the desorption fan is divided into two branches, wherein one branch is connected with the tail end of the active carbon adsorption bed device, and the other branch is connected with a starting end of the spraying tower; the tail end of the spraying tower is connected with the main exhaust fan; and the acid mist adsorption tower, the active carbon adsorption bed device, the main exhaust fan, the catalytic combustion device, the desorption fan and the spraying tower are respectively connected with a PLC (programmable logic controller) control system. The invention further discloses a VOC waste gas treatment method for the pharmaceutical and chemical industry. The VOC waste gas treatment device and the VOC waste gas treatment method further have the characteristic of removing other impurities in addition to a function of removing VOC in the waste gas; besides, the waste gas is adsorbed by active carbon, treated by the catalytic combustion device and washed by the spraying tower, so that up-to-standard discharge is completely reached.
Description
Technical field
The invention belongs to waste gas pollution control and treatment field, be specifically related to the VOC emission-control equipment that produces in a kind of medication chemistry industry production process and method, be specially adapted to VOC waste gas between MPV and do not possess the process of recovery value VOC waste gas.
Background technology
The process Raw of medication chemistry industry chemistry synthetic intermediate generally through sequence of chemical processes such as condensation, halo, protection, acetylation, glycosidation, deprotection, reduction, will obtain the higher intermediate of purity after then carrying out the operation process such as crystallization, centrifugation, neutralization, distillation, washing, recrystallization and vacuum drying to synthetic product.The diversity of product and raw material, the feature such as the otherness of synthetic route and complexity cause its process gas to have complicated component, it is uncertain to form, character is various and operating mode is changeable.
Comprise through adding up main VOC composition: methyl alcohol, ethanol, ethyl acetate, methyl acetate, benzene,toluene,xylene, carrene, pyridine, acetonitrile etc., for feature and the harmfulness of VOC, current main methods has condensation method, absorption process, absorption method, combustion method, heat catalytic oxidation method, lower temperature plasma technology, photocatalytic method and bioanalysis etc.
In addition, the applying date is on October 24th, 2014, publication number is CN104436989A " a kind of waste gas containing VOC reclaiming clean device " discloses a kind of VOC waste gas recovery purifier, this device can recycle the higher and VOC waste gas that component is single of concentration, but to multicomponent, inapplicable without the VOC waste gas of recovery value, and namely the fixed gas produced in removal process does not discharge through effective process.
Summary of the invention
The object of this invention is to provide a kind of medication chemistry industry VOC emission-control equipment, solve following technical problem: complicated at exhaust gas constituents, form process that is uncertain, VOC waste gas when character is various and operating mode is changeable, to realize waste gas qualified discharge, reduce investment, reduce operating cost, realize automatically controlling, and reduce the generation of secondary pollution as far as possible.
For solving the problems of the technologies described above, present invention also offers a kind of medication chemistry industry VOC waste gas processing method.
The present invention is achieved by the following technical solutions:
A kind of medication chemistry industry VOC emission-control equipment, include the acid mist adsorption tower being connected to VOC exhaust gas source air outlet, the charcoal absorption bed apparatus connecting acid mist adsorption tower successively along exhaust-gas treatment flow process, and connect the main exhaust fan of charcoal absorption bed apparatus, the chimney of connection main exhaust fan;
Described charcoal absorption bed apparatus also connects catalytic combustion system, described catalytic combustion system connects desorption blower fan and spray column, described desorption blower fan one end is connected with catalytic combustion system end, other end bifurcation, one is connected with charcoal absorption bed apparatus end, another is connected with spray column top, and described spray column end connects described main exhaust fan;
Described acid mist adsorption tower, charcoal absorption bed apparatus, main exhaust fan, catalytic combustion system, desorption blower fan, spray column are connected with PLC control system respectively.
As optimization, be provided with acid mist adsorbent in described acid mist adsorption tower, the rear portion of described acid mist adsorption tower and the front and rear part of described catalytic combustion system are equipped with spark arrester.
As optimization, described charcoal absorption bed apparatus is some groups of activated carbon adsorption beds in parallel, and the activated carbon adsorption bed outlet of some groups of parallel connections connects described main exhaust fan.
As optimization, in described catalytic combustion system, be provided with heater and catalytic bed.
As optimization, also comprise benefit air-cooler, it is located on the branch road that desorption blower fan is connected with charcoal absorption bed apparatus.
A kind of medication chemistry industry VOC waste gas processing method, comprises the following steps:
1) first waste gas containing VOC enters the sour gas such as the acid mist adsorption tower removing HCL that acid mist adsorbent is housed after blower fan is drawn, by entering the activated carbon adsorption bed of some groups of parallel connections after spark arrester, pass through valve auto-alternate, gas is made to enter different activated carbon adsorption beds, the activated carbon adsorption bed of some groups of parallel connections is alternations, and after gas enters activated carbon adsorption bed, VOC is tightly held by activated carbon on surface, thus gas is purified, purified gas is discharged by main exhaust fan;
2) after activated carbon adsorption bed reaches the adsorption time preset, start desorption blower fan to this adsorbent bed desorption, the heater of desorption gas first in catalytic combustion system, desorption gas is heated, then by the catalytic bed in catalytic combustion system; At the driving initial stage, start heater, make gas temperature bring up to about 300-400 DEG C and enter catalytic bed, along with continuous increase organic in desorption gas, constantly raise according to catalytic bed temperature, progressively close heater; There is oxidation reaction on catalytic bed surface in organic matter, is broken down into CO under the effect of the oxygen
2and H
2o, releases a large amount of reaction heat simultaneously; Reacted gas discharges catalytic bed, and this gas heats up because being heated by reaction heat, and high-temperature gas enters the another side of heat exchanger, carries out heat exchange with by desorption cold wind, recovery section heat, maintains catalysis nominal situation;
3) two parts are divided from catalytic combustion system gas out: a part is through spray column washing, and directly emptying by main exhaust fan after the issuable phosgene of removing catalytic reaction, washes drains into the process of production waste system; Another part enters charcoal absorption bed apparatus as desorption gas and carries out desorption to active carbon; When desorption temperature is too high, it is cold that startup benefit air-cooler carries out benefit, makes desorption gas temperature stabilization in normal range of operation.
As optimization, described acid mist adsorbent is SDG acid mist adsorbent.
Any one as optimization, in the activated carbon adsorption bed of some groups of parallel connections all in filler particles active carbon or fibre active carbon or honeycomb briquet.
As optimization, described catalytic bed is using ceramic honeycomb as carrier, and surface scribbles aluminium oxide and precious metal palladium, platinum, and reaction temperature controls at 250-700 DEG C.
The invention has the beneficial effects as follows:
The present invention, design science, small investment, operating cost be low, simple to operate, automatically control, and except having the function removing VOC in waste gas, also possesses the feature of the impurity such as other sour gas of removing simultaneously; In addition, waste gas washs through charcoal absorption, catalytic combustion system process, spray column, complete qualified discharge; In addition, strong shock resistance, is applicable to VOC exhaust-gas treatment under various working, the generation of basic non-secondary pollution thing.There is good actual application value and promotional value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, a kind of medication chemistry industry VOC emission-control equipment and method are described further:
Fig. 1 is a kind of structural representation of medication chemistry industry VOC emission-control equipment.
In figure: 1, acid mist adsorption tower; 2, spark arrester; 3, the first activated carbon adsorption bed; 4, the second activated carbon adsorption bed; 5, main exhaust fan; 6, chimney; 7, catalytic combustion system; 8, desorption blower fan; 9, air-cooler is mended; 10, spray column; 11, PLC control system.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, a kind of medication chemistry industry VOC emission-control equipment, include the acid mist adsorption tower 1 of the air outlet being connected to VOC exhaust gas source blower fan along exhaust-gas treatment flow process successively, connect the charcoal absorption bed apparatus of acid mist adsorption tower 1, and connect the main exhaust fan 5 of charcoal absorption bed apparatus, the chimney 6 of connection main exhaust fan 5;
Described charcoal absorption bed apparatus also connects catalytic combustion system 7, described catalytic combustion system 7 connects desorption blower fan 8 and spray column 10, described desorption blower fan 8 one end is connected with catalytic combustion system 7 end, other end bifurcation, one is connected with charcoal absorption bed apparatus end, another is connected with spray column 10 top, and described spray column 10 end connects described main exhaust fan 5;
Described acid mist adsorption tower 1, charcoal absorption bed apparatus, main exhaust fan 5, catalytic combustion system 7, desorption blower fan 8, spray column 10 are connected with PLC control system 11 respectively.
Design like this, first waste gas containing VOC enters acid mist adsorption tower 1 and removes the sour gas such as HCL after blower fan is drawn, then by charcoal absorption bed apparatus, after gas enters activated carbon adsorption bed, VOC is tightly held by activated carbon on surface, thus gas is purified, purified gas is discharged by main exhaust fan 5; In addition, the VOC component in charcoal absorption bed apparatus absorption waste gas is qualified discharge after the process of catalytic combustion system 7 and desorption blower fan 8, spray column 10 wash also.Visible above-mentioned emission-control equipment removes the function of VOC in waste gas except having, also possess the feature of the impurity such as other sour gas of removing simultaneously; Waste gas washs through charcoal absorption, catalytic combustion system process, spray column, complete qualified discharge; Strong shock resistance, is applicable to VOC exhaust-gas treatment under various working; Small investment, operating cost be low, simple to operate, automatically control; The generation of basic non-secondary pollution thing.
Concrete, be provided with acid mist adsorbent in described acid mist adsorption tower 1, the rear portion of described acid mist adsorption tower 1 and the front and rear part of described catalytic combustion system 7 are equipped with spark arrester 2.Design like this, result of use is better, and security is high.
Concrete, described charcoal absorption bed apparatus is two groups of activated carbon adsorption beds in parallel, and the activated carbon adsorption bed outlet being respectively the first activated carbon adsorption bed 3 and 4, the two groups of parallel connections of the second activated carbon adsorption bed connects described main exhaust fan 5.Design like this, during use, by valve auto-alternate, make gas enter different adsorbent beds, two adsorbent bed alternations, effect is better.
Concrete, be provided with heater and catalytic bed in described catalytic combustion system 7.Design like this, the heater of desorption gas first in catalytic combustion system 7, heats desorption gas, then by the catalytic bed in catalytic combustion system 7, along with continuous increase organic in desorption gas, constantly raise according to catalytic bed temperature, progressively close heater; There is oxidation reaction on catalytic bed surface in organic matter, is broken down into CO under the effect of the oxygen
2and H
2o, releases a large amount of reaction heat simultaneously; Reacted gas discharges catalytic bed, and this gas heats up because being heated by reaction heat, and high-temperature gas enters the another side of heat exchanger, carries out heat exchange with by desorption cold wind, recovery section heat, maintains catalysis nominal situation.
Concrete, also comprise and mend air-cooler 9, it is located on the branch road that desorption blower fan 8 is connected with charcoal absorption bed apparatus.Design like this, when desorption temperature is too high, can starts and mend air-cooler 9 to carry out benefit cold, make desorption gas temperature stabilization in normal range of operation.
A kind of medication chemistry industry VOC waste gas processing method, comprises the following steps:
1) first waste gas containing VOC enters the acid mist adsorption tower 1 that acid mist adsorbent is housed and removes the sour gas such as HCL after blower fan is drawn, by entering the activated carbon adsorption bed of two groups of parallel connections after spark arrester 2, pass through valve auto-alternate, gas is made to enter different activated carbon adsorption beds, the activated carbon adsorption bed of two groups of parallel connections is alternations, and after gas enters activated carbon adsorption bed, VOC is tightly held by activated carbon on surface, thus gas is purified, purified gas is discharged by main exhaust fan 5;
2) after activated carbon adsorption bed reaches the adsorption time preset, start desorption blower fan 8 to this adsorbent bed desorption, the heater of desorption gas first in catalytic combustion system 7, heats desorption gas, then by the catalytic bed in catalytic combustion system 7; At the driving initial stage, start heater, make gas temperature bring up to about 300-400 DEG C and enter catalytic bed, along with continuous increase organic in desorption gas, constantly raise according to catalytic bed temperature, progressively close heater; There is oxidation reaction on catalytic bed surface in organic matter, is broken down into CO under the effect of the oxygen
2and H
2o, releases a large amount of reaction heat simultaneously; Reacted gas discharges catalytic bed, and this gas heats up because being heated by reaction heat, and high-temperature gas enters the another side of heat exchanger, carries out heat exchange with by desorption cold wind, recovery section heat, maintains catalysis nominal situation;
3) divide two parts from catalytic combustion system 7 gas out: a part is washed through spray column 10, directly emptying by main exhaust fan 5 after the issuable phosgene of removing catalytic reaction, washes drains into the process of production waste system; Another part enters charcoal absorption bed apparatus as desorption gas and carries out desorption to active carbon; When desorption temperature is too high, it is cold that startup benefit air-cooler 9 carries out benefit, makes desorption gas temperature stabilization in normal range of operation.
Concrete, described acid mist adsorbent is SDG acid mist adsorbent.Design like this, result of use is better.
Concrete, any one in the activated carbon adsorption bed of described two groups of parallel connections all in filler particles active carbon or fibre active carbon or honeycomb briquet, and when running one group be in adsorbed state, other one group is in desorption or holding state.
Concrete, described catalytic bed is using ceramic honeycomb as carrier, and surface scribbles aluminium oxide and precious metal palladium, platinum, and reaction temperature controls at 250-700 DEG C.Design like this, effect is better.
The present invention, design science, small investment, operating cost be low, simple to operate, automatically control, and except having the function removing VOC in waste gas, also possesses the feature of the impurity such as other sour gas of removing simultaneously; In addition, waste gas washs through charcoal absorption, catalytic combustion system process, spray column, complete qualified discharge; In addition, strong shock resistance, is applicable to VOC exhaust-gas treatment under various working, the generation of basic non-secondary pollution thing.
Above-mentioned detailed description of the invention is only concrete case of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent implementations of equivalent variations.But every do not depart from the prerequisite of the technology of the present invention principle under, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, all should fall into scope of patent protection of the present invention.
Claims (10)
1. a medication chemistry industry VOC emission-control equipment, it is characterized in that: include the acid mist adsorption tower being connected to VOC exhaust gas source air outlet, the charcoal absorption bed apparatus connecting acid mist adsorption tower successively along exhaust-gas treatment flow process, and connect the main exhaust fan of charcoal absorption bed apparatus, the chimney of connection main exhaust fan;
Described charcoal absorption bed apparatus also connects catalytic combustion system, described catalytic combustion system connects desorption blower fan and spray column, described desorption blower fan one end is connected with catalytic combustion system end, other end bifurcation, one is connected with charcoal absorption bed apparatus end, another is connected with spray column top, and described spray column end connects described main exhaust fan;
Described acid mist adsorption tower, charcoal absorption bed apparatus, main exhaust fan, catalytic combustion system, desorption blower fan, spray column are connected with PLC control system respectively.
2. a kind of medication chemistry industry VOC emission-control equipment as claimed in claim 1, is characterized in that: be provided with acid mist adsorbent in described acid mist adsorption tower, and the rear portion of described acid mist adsorption tower and the front and rear part of described catalytic combustion system are equipped with spark arrester.
3. a kind of medication chemistry industry VOC emission-control equipment as claimed in claim 2, is characterized in that: described charcoal absorption bed apparatus is some groups of activated carbon adsorption beds in parallel, and the activated carbon adsorption bed outlet of some groups of parallel connections connects described main exhaust fan.
4. a kind of medication chemistry industry VOC emission-control equipment as claimed in claim 3, it is characterized in that: described charcoal absorption bed apparatus is two groups of activated carbon adsorption beds in parallel, be respectively the first activated carbon adsorption bed and the second activated carbon adsorption bed, the activated carbon adsorption bed outlet of two groups of parallel connections connects described main exhaust fan.
5. a kind of medication chemistry industry VOC emission-control equipment as claimed in claim 3, is characterized in that: be provided with heater and catalytic bed in described catalytic combustion system.
6. a kind of medication chemistry industry VOC emission-control equipment as claimed in claim 5, is characterized in that: also comprise and mend new blower fan, and it is located on the branch road that desorption blower fan is connected with charcoal absorption bed apparatus.
7. a medication chemistry industry VOC waste gas processing method as claimed in claim 6, is characterized in that: comprise the following steps:
1) first waste gas containing VOC enters the sour gas such as the acid mist adsorption tower removing HCL that acid mist adsorbent is housed after blower fan is drawn, by entering the activated carbon adsorption bed of some groups of parallel connections after spark arrester, pass through valve auto-alternate, gas is made to enter different activated carbon adsorption beds, the activated carbon adsorption bed of some groups of parallel connections is alternations, and after gas enters activated carbon adsorption bed, VOC is tightly held by activated carbon on surface, thus gas is purified, purified gas is discharged by main exhaust fan;
2) after activated carbon adsorption bed reaches the adsorption time preset, start desorption blower fan to this adsorbent bed desorption, the heater of desorption gas first in catalytic combustion system, desorption gas is heated, then by the catalytic bed in catalytic combustion system; At the driving initial stage, start heater, make gas temperature bring up to about 300-400 DEG C and enter catalytic bed, along with continuous increase organic in desorption gas, constantly raise according to catalytic bed temperature, progressively close heater; There is oxidation reaction on catalytic bed surface in organic matter, is broken down into CO under the effect of the oxygen
2and H
2o, releases a large amount of reaction heat simultaneously; Reacted gas discharges catalytic bed, and this gas heats up because being heated by reaction heat, and high-temperature gas enters the another side of heat exchanger, carries out heat exchange with by desorption cold wind, recovery section heat, maintains catalysis nominal situation;
3) two parts are divided from catalytic combustion system gas out: a part is through spray column washing, and directly emptying by main exhaust fan after the issuable phosgene of removing catalytic reaction, washes drains into the process of production waste system; Another part enters charcoal absorption bed apparatus as desorption gas and carries out desorption to active carbon; When desorption temperature is too high, it is cold that startup benefit air-cooler carries out benefit, makes desorption gas temperature stabilization in normal range of operation.
8. a kind of medication chemistry industry VOC waste gas processing method as claimed in claim 7, is characterized in that: described acid mist adsorbent is SDG acid mist adsorbent.
9. a kind of medication chemistry industry VOC waste gas processing method as claimed in claim 7, is characterized in that: any one in the activated carbon adsorption bed of described some groups of parallel connections all in filler particles active carbon or fibre active carbon or honeycomb briquet.
10. a kind of medication chemistry industry VOC waste gas processing method as claimed in claim 7, is characterized in that: described catalytic bed is using ceramic honeycomb as carrier, and surface scribbles aluminium oxide and precious metal palladium, platinum, and reaction temperature controls at 250-700 DEG C.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105709562A (en) * | 2016-04-07 | 2016-06-29 | 重庆纽贝环保科技有限公司 | Continuous purification treatment system for paint spraying waste gas and purification method adopting continuous purification treatment system |
| CN105737173A (en) * | 2016-04-19 | 2016-07-06 | 西南化工研究设计院有限公司 | Catalytic combustion device for purifying organic waste gas |
| CN106345224A (en) * | 2016-10-26 | 2017-01-25 | 南京大学 | Purifying device and method of biomass gas purifying tail gas |
| CN107138019A (en) * | 2017-07-12 | 2017-09-08 | 云汇环保科技南通有限公司 | A kind of volatile organic compounds purifier |
| CN107261747A (en) * | 2017-08-08 | 2017-10-20 | 广州云汇能源环保科技有限公司 | A kind of volatile organic waste gas high efficiency purifying processing device |
| CN108317529A (en) * | 2018-04-16 | 2018-07-24 | 江西科领爱尔环保设备有限公司 | One kind is for being catalyzed burning adsorption method and device |
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| CN110075695A (en) * | 2019-05-30 | 2019-08-02 | 江苏新聚环保科技有限公司 | Emission-control equipment |
| CN111265999A (en) * | 2020-02-13 | 2020-06-12 | 雅化锂业(雅安)有限公司 | Acid mist waste gas treatment system for metallurgy |
| CN111773879A (en) * | 2020-07-06 | 2020-10-16 | 山东康源环保科技有限公司 | VOCs administers device for pharmaceutical chemical production |
| CN113813724A (en) * | 2020-09-21 | 2021-12-21 | 钟锦炜 | Energy-concerving and environment-protective intelligent gas cleaning device of industry |
| CN113975929A (en) * | 2021-10-26 | 2022-01-28 | 中国科学院力学研究所 | Method for removing ammonia from tail gas in production process of high-tower compound fertilizer |
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| CN105709562A (en) * | 2016-04-07 | 2016-06-29 | 重庆纽贝环保科技有限公司 | Continuous purification treatment system for paint spraying waste gas and purification method adopting continuous purification treatment system |
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| CN107261747A (en) * | 2017-08-08 | 2017-10-20 | 广州云汇能源环保科技有限公司 | A kind of volatile organic waste gas high efficiency purifying processing device |
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| CN108662598A (en) * | 2018-07-16 | 2018-10-16 | 浏阳市源友印务包装有限公司 | A kind of printing machine gas sampling exhaust system |
| CN110075695A (en) * | 2019-05-30 | 2019-08-02 | 江苏新聚环保科技有限公司 | Emission-control equipment |
| CN111265999A (en) * | 2020-02-13 | 2020-06-12 | 雅化锂业(雅安)有限公司 | Acid mist waste gas treatment system for metallurgy |
| CN111773879A (en) * | 2020-07-06 | 2020-10-16 | 山东康源环保科技有限公司 | VOCs administers device for pharmaceutical chemical production |
| CN113813724A (en) * | 2020-09-21 | 2021-12-21 | 钟锦炜 | Energy-concerving and environment-protective intelligent gas cleaning device of industry |
| CN113975929A (en) * | 2021-10-26 | 2022-01-28 | 中国科学院力学研究所 | Method for removing ammonia from tail gas in production process of high-tower compound fertilizer |
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Application publication date: 20160113 |