CN202478779U - System device for treating organic waste gas by adsorption-catalytic combustion - Google Patents

System device for treating organic waste gas by adsorption-catalytic combustion Download PDF

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Publication number
CN202478779U
CN202478779U CN2012200673116U CN201220067311U CN202478779U CN 202478779 U CN202478779 U CN 202478779U CN 2012200673116 U CN2012200673116 U CN 2012200673116U CN 201220067311 U CN201220067311 U CN 201220067311U CN 202478779 U CN202478779 U CN 202478779U
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China
Prior art keywords
desorption
catalytic combustion
absorption
absorber
adsorption
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CN2012200673116U
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Chinese (zh)
Inventor
丁治椿
刘仲文
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苏州乔尼设备工程有限公司
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Abstract

The utility model discloses a system device for treating organic waste gas by adsorption-catalytic combustion. The system device for treating organic waste gas by adsorption-catalytic combustion comprises an adsorption part, a catalytic combustion part and a connecting pipeline. The adsorption part comprises a primary filter, at least two parallel adsorbers and an adsorption fan. The catalytic combustion part comprises a catalytic combustor, a heater, a cold supplement mechanism and a desorption fan. The system device for treating organic waste gas by adsorption-catalytic combustion is characterized in that a heat exchanger is arranged between the adsorption part and the catalytic combustion part, one end of the heat exchanger is connected with an adsorption fan, the other end of the heat exchanger is connected to a desorption input end of each adsorber, a desorption output end of each adsorber is connected with the catalytic combustor, and an output end of the catalytic combustor is connected with an output pipeline of the adsorption fan through the heat exchanger. Waste heat in catalytic combustion is fully utilized by disposing the heat exchanger between the adsorption part and the catalytic combustion part and introducing gas subjected to catalytic combustion into the adsorbers for desorption and regeneration for use, and accordingly energy consumption is reduced, and cost is reduced.

Description

Absorption-catalytic combustion is handled the organic exhaust gas system equipment

Technical field

The utility model relates to a kind of off-gas cleaning equipment, is specifically related to a kind of absorption-catalytic combustion and handles the organic exhaust gas system equipment.

Background technology

Physics and chemical method are generally adopted in the improvement of organic exhaust gas, and concrete improvement technology has Production by Catalytic Combustion Process, active carbon adsorption, condensation method, absorption process and plasma oxidation method etc., has solved the pollution of organic exhaust gas to environment.

Commonly used is active carbon adsorption and Production by Catalytic Combustion Process, and wherein: the active carbon adsorption purifying rate can reach more than 95%, if no regenerating unit; Then operating cost is too high; If use Steam Recovery, then technological process is long, and operating cost is high; Active carbon adsorption capacity behind adsorption/desorption repeatedly can reduce gradually, generally uses after 2~3 years and must change; The Production by Catalytic Combustion Process purifying rate also can reach 95%, is suitable for treatment of high concentration, little air quantity organic exhaust gas, but will consume a large amount of energy for improving EGT.Therefore; It is comparatively complementary mode that absorption method is combined with Production by Catalytic Combustion Process; I.e. absorption concentrates-Production by Catalytic Combustion Process; In the middle of the purification of the harmful organic exhaust gas that is widely used in application, printing, electromechanics, household electrical appliances, shoemaking, plastics and the various chemical workshop volatilization or leaks out and the engineering projects such as elimination of stink, be best suited for the low concentration (occasion that organic exhaust gas 50~1000ppm), that should not adopt direct burning or Production by Catalytic Combustion Process and absorption absorption method to handle is administered.Especially to the processing occasion of big air quantity, all can obtain satisfied economic benefit and social benefit.

Like Chinese utility model patent disclosed " organic waste-gas purification treatment facility " (CN2579505Y); Mainly form by absorption and desorption-catalytic combustion two large divisions; Absorbed portion is made up of dirt catcher, many adsorbent beds, main air blower, current dividers; Desorption-catalytic combustion part is made up of benefit air-cooler, the adsorbent bed of many parallel connections, desorption blower fan, catalytic combustion bed, through charcoal absorption-heating power desorption-catalytic combustion mode cleaning organic waste gas.

As stated, absorption of the prior art-catalytic combustion device structure is comparatively complicated, and on heat energy, can not well recycle, thereby awaits further improvement.

Summary of the invention

The utility model purpose provides a kind of absorption-catalytic combustion and handles the organic exhaust gas system equipment, and the improvement through to equipment simplifies the structure, and has effectively improved the recycling to the energy, reduces energy consumption, and operating cost reduces greatly.

For achieving the above object; The technical scheme that the utility model adopts is: a kind of absorption-catalytic combustion is handled the organic exhaust gas system equipment; Comprise absorbed portion, catalytic combustion part and connecting line; Said absorbed portion is made up of the absorber and the absorption blower fan of initial filtrator, 2 parallel connections at least, and said catalytic combustion part is made up of catalytic burner, heater, the cold mechanism of benefit and desorption blower fan, is provided with a heat exchanger between said absorbed portion and the catalytic combustion part; This heat exchanger one end is connected with said desorption blower fan; The other end is connected on the desorption input of said absorber, and the desorption output of said absorber is connected with said catalytic burner, and the output of said catalytic burner is connected with absorption blower fan output pipe through said heat exchanger.

In the technique scheme, absorbed portion adopts the mode of at least 2 absorber parallel connections, and wherein one is subsequent use; When the saturated back regeneration of absorption desorption; Switch to subsequent use absorber work, saturated absorber then can be used for desorption, thereby can satisfy the needs of continuous operation.Organic exhaust gas is through the initial filtrator preliminary treatment, and it is interior by charcoal absorption to send into absorber again, and the pure qi (oxygen) after the absorption is discharged by the absorption blower fan; Catalytic combustion part adds hot-air by heater, blows hot-air by the desorption blower fan and goes into saturated absorber, makes its desorption and regeneration, and the organic matter behind the desorption was by concentrated (concentration improved tens times more originally, reached more than the 2000PPM), and to send catalytic burner catalysis be CO 2With H 2O discharges.In the utility model,, high-temperature gas and desorption are used hot air heat exchange, improve the temperature of hot-air, reduce the energy consumption of heater through a heat exchanger for the waste heat behind the use catalytic combustion.

In the technique scheme; Be respectively equipped with intake valve and air outlet valve on the exhaust inlet pipe road of each said absorber He on the pure qi (oxygen) output pipe; The return line that each said absorber is connected with said heat exchanger is provided with the hot reflux valve; Be respectively equipped with the desorption valve on the desorption pipeline between said catalytic burner and each the said absorber, the control end of each said intake valve, air outlet valve, hot reflux valve and desorption valve is connected with the PLC controller respectively.

In the technique scheme, said heater is electric heater or natural gas heater.

In the technique scheme, the pipeline between said desorption blower fan and the said heater is provided with spark arrester.

In the technique scheme; In the said absorbed portion; A parallelly connected bypass pipe road on the exhaust inlet pipe road between said initial filtrator and said absorber; This bypass line other end is communicated with absorption blower fan output pipe, and said bypass line is provided with by-passing valve, and the control end of this by-passing valve is connected with the PLC controller.

In the technique scheme, be provided with temperature monitor in the said absorber, the signal output part of this temperature monitor is connected with the PLC controller.

The utility model operation principle: operation is divided into absorption and two processes of desorption.During absorption, organic exhaust gas gets into absorber after dust, particulate material are removed in the initial filtrator preliminary treatment, and organic substance is removed by charcoal absorption, and the pure qi (oxygen) that has purified is through adsorbing blower fan to smoke stack emission; When reaching capacity soon, stop adsorption operations; The desorption blower fan is opened, and opens the hot reflux valve, and the air of heater via heating is flowed in the absorber; Organic matter desorption from the active carbon is got off to make its regeneration, and the dense organic exhaust gas that desorption goes out react generation CO in catalytic burner 2, H 2Behind the O, high-temperature gas is discharged by chimney through heat exchanger (with the gas heat exchange that the desorption blower fan blows out, the return air temperature is raise, reduce the energy consumption of heater, make full use of the waste heat behind the catalytic combustion) back.

Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:

1, the utility model is provided with a heat exchanger between absorbed portion and catalytic combustion part; The thermal current of catalytic burner output is discharged behind heat exchanger, and the air heat exchange that thermal current and desorption blower fan are blown out makes full use of the waste heat behind the catalytic combustion; Return air is heated up rapidly; Satisfy the required heat energy of absorber desorption, reduce the energy consumption of heater, reduce operating cost;

2, be provided with temperature monitor in the absorber, the detected temperatures signal feedback is given the PLC controller, realizes the automatic control to desorption temperature;

3, on the pipeline between heater and the desorption blower fan spark arrester is set, prevents to mix organic exhaust gas and in pipeline, produce naked light and burn, improve the job safety performance of whole device;

4, bypass line is set, by-passing valve is by PLC controller control, when burst thing such as equipment fault or power failure occurring, opens by-passing valve, and gas can be discharged from bypass line, avoids the gathering of gas in device, the raising security;

5, absorber saturated after, realize closing automatically intake valve and air outlet valve by the PLC controller, open hot reflux valve and desorption valve automatically, start catalytic burner and desorption blower fan thereof simultaneously, realize the automation of entire equipment.

Description of drawings

Fig. 1 is the pipeline jointing construction sketch map of the utility model embodiment one.

Wherein: 1, catalytic burner; 2, electric heater; 3, heat exchanger; 4, desorption blower fan; 5, spark arrester; 6, initial filtrator; 7, absorber; 8, absorption blower fan; 9, bypass line; 10, output pipe; 11, intake valve; 12, air outlet valve; 13, return line; 14, hot reflux valve; 15, desorption pipeline; 16, desorption valve; 17, by-passing valve; 18, mend cold mechanism.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment one: referring to shown in Figure 1; A kind of absorption-catalytic combustion is handled the organic exhaust gas system equipment; Comprise absorbed portion, catalytic combustion part and connecting line; Said absorbed portion is made up of the absorber 7 of 6,2 parallel connections of initial filtrator, absorption blower fan 8 and bypass line 9, said catalytic combustion part by catalytic burner 1, electric heater 2, mend cold mechanism 18, spark arrester 5 and desorption blower fan 4 and constitute, said absorbed portion and catalytic combustion are provided with a heat exchanger 3 between partly; These heat exchanger 3 one ends are connected with said desorption blower fan 4; The other end is connected on the desorption input of said absorber 7, and the desorption output of said absorber 7 is connected with said catalytic burner 1, and the output of said catalytic burner 1 is connected with absorption blower fan 8 output pipes 10 through said heat exchanger 3.

Be respectively equipped with intake valve 11 and air outlet valve 12 on the exhaust inlet pipe road of each said absorber 7 with on the pure qi (oxygen) output pipe; Each said absorber 7 is provided with hot reflux valve 14 with the return line 13 that said heat exchanger 3 is connected; Be respectively equipped with desorption valve 16 on the desorption pipeline 15 between said catalytic burner 1 and each the said absorber 7, the control end of each said intake valve 11, air outlet valve 12, hot reflux valve 14 and desorption valve 16 is connected with the PLC controller respectively.Said bypass line 9 is parallel between said initial filtrator 6 and the said absorber 7 on the exhaust inlet pipe road; These bypass line 9 other ends are communicated with absorption blower fan 8 output pipes 10; Gas is discharged by chimney through this output pipe 10; Said bypass line 9 is provided with by-passing valve 17, and the control end of this by-passing valve 17 is connected with the PLC controller.

Two absorber 7 the using and the reserved are used alternatingly, and by the keying of PLC controller control intake valve 11 and air outlet valve 12, select to use absorber 7 absorption, and through control hot reflux valve 14 and desorption valve 16, select to use absorber 7 desorptions.The concrete method of operation is divided into two kinds:

1) adsorption box A, adsorption box B adsorb in turn, desorption process, be used alternatingly.Its working forms is:

Adsorption box A absorption, subsequent use behind adsorption box B desorption and the catalytic combustion;

Adsorption box B absorption, subsequent use behind adsorption box A desorption and the catalytic combustion;

2) adsorption box A, adsorption box B adsorb simultaneously, put into operation immediately behind stagger the time desorption and the catalytic combustion, and its working forms is:

Adsorption box A, adsorption box B adsorb simultaneously;

Adsorption box B absorption, adsorption box A desorption and catalytic combustion;

Adsorption box A, adsorption box B adsorb simultaneously;

Adsorption box A absorption, adsorption box B desorption and catalytic combustion.

Be provided with temperature monitor in the said absorber 7, the signal output part of this temperature monitor is connected with the PLC controller, realizes the automatic control to desorption temperature, and after reaching desorption temperature, electric heater 2 is cut out by the PLC controller.

During absorption, organic exhaust gas gets into absorber after dust, particulate material are removed in initial filtrator 6 preliminary treatment, and organic substance is removed by charcoal absorption, and the pure qi (oxygen) that has purified is through adsorbing blower fan 8 to smoke stack emission; When active carbon reaches capacity soon, stop adsorption operations, electric heater 2 and desorption blower fan 4 are opened; Open hot reflux valve 14; Make through the air of the electric heater 2 heating heat exchanger 3 of flowing through to get in the absorbers 7, after reaching desorption temperature, organic matter desorption from the active carbon gets off; The dense organic exhaust gas that desorption goes out is delivered in the catalytic burner 1 through desorption pipeline 15, and reaction generates CO 2, H 2O, the gas heat exchange that the high-temperature gas after the burning blows out through heat exchanger 3 and desorption blower fan 4, hot-gas temperature descends; Discharge by chimney, and the return air temperature raises on the other hand, is used for desorption; Significantly reduce the energy consumption of electric heater 2, make full use of the waste heat behind the catalytic combustion.

Claims (6)

1. an absorption-catalytic combustion is handled the organic exhaust gas system equipment; Comprise absorbed portion, catalytic combustion part and connecting line; Said absorbed portion is made up of the absorber and the absorption blower fan of initial filtrator, 2 parallel connections at least; Said catalytic combustion part is made up of catalytic burner, heater, the cold mechanism of benefit and desorption blower fan; It is characterized in that: be provided with a heat exchanger between said absorbed portion and the catalytic combustion part, this heat exchanger one end is connected with said desorption blower fan, and the other end is connected on the desorption input of said absorber; The desorption output of said absorber is connected with said catalytic burner, and the output of said catalytic burner is connected with absorption blower fan output pipe through said heat exchanger.
2. absorption according to claim 1-catalytic combustion is handled the organic exhaust gas system equipment; It is characterized in that: be respectively equipped with intake valve and air outlet valve on the exhaust inlet pipe road of each said absorber He on the pure qi (oxygen) output pipe; The return line that each said absorber is connected with said heat exchanger is provided with the hot reflux valve; Be respectively equipped with the desorption valve on the desorption pipeline between said catalytic burner and each the said absorber, the control end of each said intake valve, air outlet valve, hot reflux valve and desorption valve is connected with the PLC controller respectively.
3. absorption according to claim 1-catalytic combustion is handled the organic exhaust gas system equipment, and it is characterized in that: said heater is electric heater or natural gas heater.
4. absorption according to claim 1-catalytic combustion is handled the organic exhaust gas system equipment, and it is characterized in that: the pipeline between said desorption blower fan and the said heater is provided with spark arrester.
5. absorption according to claim 1-catalytic combustion is handled the organic exhaust gas system equipment; It is characterized in that: in the said absorbed portion; A parallelly connected bypass pipe road on the exhaust inlet pipe road between said initial filtrator and said absorber; This bypass line other end is communicated with absorption blower fan output pipe, and said bypass line is provided with by-passing valve, and the control end of this by-passing valve is connected with the PLC controller.
6. absorption according to claim 1-catalytic combustion is handled the organic exhaust gas system equipment, and it is characterized in that: be provided with temperature monitor in the said absorber, the signal output part of this temperature monitor is connected with the PLC controller.
CN2012200673116U 2012-02-28 2012-02-28 System device for treating organic waste gas by adsorption-catalytic combustion CN202478779U (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394284A (en) * 2013-06-04 2013-11-20 青岛华世洁环保科技有限公司 Mobile enrichment-fixing catalytic oxidation type organic waste-gas treating apparatus
CN103438467A (en) * 2013-08-27 2013-12-11 昆山工统环保机械有限公司 Organic waste gas adsorption and desorption concentration catalytic combustion equipment system
CN105214632A (en) * 2015-09-29 2016-01-06 安徽绿雅环境工程有限公司 The full-automatic desorption and regeneration device of charcoal absorption on-line monitoring for VOCs treatment
CN105289197A (en) * 2015-11-19 2016-02-03 苏州韵蓝环保科技有限公司 Exhaust gas purifier by using double methods
CN105605593A (en) * 2015-12-05 2016-05-25 重庆科蓝环保实业有限公司 Adsorption concentration-preheating type catalytic combustion system for purifying automobiles and coating exhaust gas in related fields and purifying method thereof
CN105688665A (en) * 2016-03-25 2016-06-22 无锡西玖环保科技有限公司 System applied to organic waste gas treatment, and working method thereof
CN106076057A (en) * 2016-08-19 2016-11-09 霍普科技(天津)股份有限公司 A kind of organic waste gas catalytic combustion processing means
CN106178820A (en) * 2016-08-31 2016-12-07 海湾环境科技(北京)股份有限公司 Regenerating active carbon system
CN106178825A (en) * 2016-08-31 2016-12-07 霍普科技(天津)股份有限公司 A kind of catalyzing integrated device of organic exhaust gas adsorption
CN106215913A (en) * 2016-08-10 2016-12-14 广东颢禾环保有限公司 A kind of activated carbon regenerating equipment
CN106345224A (en) * 2016-10-26 2017-01-25 南京大学 Purifying device and method of biomass gas purifying tail gas
CN106552466A (en) * 2016-11-01 2017-04-05 凯天环保科技股份有限公司 A kind of spraying waste gas entirety governing system
RU2624706C2 (en) * 2016-07-06 2017-07-05 Баир Сыдыпович Бальжинимаев Method and installation for purifying waste gases
CN106943839A (en) * 2017-03-16 2017-07-14 东华大学 Alternative living things catalysis burning VOC waste gas purification apparatuses and application method
WO2017133235A1 (en) * 2016-02-02 2017-08-10 四维尔丸井(广州)汽车零部件有限公司 Waste gas treatment system
CN107413315A (en) * 2017-07-31 2017-12-01 苏州乔发环保科技股份有限公司 Carbon system organic exhaust gas inhalant
CN107983083A (en) * 2017-11-20 2018-05-04 珠海天禾环保工程有限公司 A kind of new VOCs processing equipments and treatment process
CN108434929A (en) * 2017-02-16 2018-08-24 克兰茨有限责任公司 Equipment for handling the unstrpped gas volume flow for carrying oxidable ingredient
CN108458354A (en) * 2018-04-20 2018-08-28 成都鑫金臣节能环保科技有限公司 Sectional type activated carbon adsorption desorption catalyzing burner
WO2018162675A1 (en) * 2017-03-08 2018-09-13 Fjell Biodry As Method and system for gas capture comprising by circulating sorbent

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394284B (en) * 2013-06-04 2014-12-17 青岛华世洁环保科技有限公司 Mobile enrichment-fixing catalytic oxidation type organic waste-gas treating apparatus
CN103394284A (en) * 2013-06-04 2013-11-20 青岛华世洁环保科技有限公司 Mobile enrichment-fixing catalytic oxidation type organic waste-gas treating apparatus
CN103438467A (en) * 2013-08-27 2013-12-11 昆山工统环保机械有限公司 Organic waste gas adsorption and desorption concentration catalytic combustion equipment system
CN103438467B (en) * 2013-08-27 2016-05-11 昆山工统环保机械有限公司 Organic exhaust gas adsorption desorption concentrates catalytic combustion device system
CN105214632A (en) * 2015-09-29 2016-01-06 安徽绿雅环境工程有限公司 The full-automatic desorption and regeneration device of charcoal absorption on-line monitoring for VOCs treatment
CN105289197A (en) * 2015-11-19 2016-02-03 苏州韵蓝环保科技有限公司 Exhaust gas purifier by using double methods
CN105605593A (en) * 2015-12-05 2016-05-25 重庆科蓝环保实业有限公司 Adsorption concentration-preheating type catalytic combustion system for purifying automobiles and coating exhaust gas in related fields and purifying method thereof
CN105605593B (en) * 2015-12-05 2019-03-05 重庆科蓝环保实业有限公司 A kind of pre-heated catalytic combustion system of Adsorption Concentration-and its purification method purifying automobile and related fields coating waste gas
WO2017133235A1 (en) * 2016-02-02 2017-08-10 四维尔丸井(广州)汽车零部件有限公司 Waste gas treatment system
CN105688665A (en) * 2016-03-25 2016-06-22 无锡西玖环保科技有限公司 System applied to organic waste gas treatment, and working method thereof
RU2624706C2 (en) * 2016-07-06 2017-07-05 Баир Сыдыпович Бальжинимаев Method and installation for purifying waste gases
CN106215913A (en) * 2016-08-10 2016-12-14 广东颢禾环保有限公司 A kind of activated carbon regenerating equipment
CN106076057A (en) * 2016-08-19 2016-11-09 霍普科技(天津)股份有限公司 A kind of organic waste gas catalytic combustion processing means
CN106178825A (en) * 2016-08-31 2016-12-07 霍普科技(天津)股份有限公司 A kind of catalyzing integrated device of organic exhaust gas adsorption
CN106178820A (en) * 2016-08-31 2016-12-07 海湾环境科技(北京)股份有限公司 Regenerating active carbon system
CN106345224B (en) * 2016-10-26 2018-10-09 南京大学 Biomass gas purifies the purifier and its method of tail gas
CN106345224A (en) * 2016-10-26 2017-01-25 南京大学 Purifying device and method of biomass gas purifying tail gas
CN106552466B (en) * 2016-11-01 2019-01-18 航天凯天环保科技股份有限公司 A kind of spraying exhaust gas entirety governing system
CN106552466A (en) * 2016-11-01 2017-04-05 凯天环保科技股份有限公司 A kind of spraying waste gas entirety governing system
CN108434929A (en) * 2017-02-16 2018-08-24 克兰茨有限责任公司 Equipment for handling the unstrpped gas volume flow for carrying oxidable ingredient
WO2018162675A1 (en) * 2017-03-08 2018-09-13 Fjell Biodry As Method and system for gas capture comprising by circulating sorbent
CN106943839A (en) * 2017-03-16 2017-07-14 东华大学 Alternative living things catalysis burning VOC waste gas purification apparatuses and application method
CN106943839B (en) * 2017-03-16 2019-11-08 东华大学 Alternative biology-catalysis burning VOC waste gas purification apparatus and application method
CN107413315A (en) * 2017-07-31 2017-12-01 苏州乔发环保科技股份有限公司 Carbon system organic exhaust gas inhalant
CN107983083A (en) * 2017-11-20 2018-05-04 珠海天禾环保工程有限公司 A kind of new VOCs processing equipments and treatment process
CN108458354A (en) * 2018-04-20 2018-08-28 成都鑫金臣节能环保科技有限公司 Sectional type activated carbon adsorption desorption catalyzing burner

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