CN106139815A - A kind of cleaning of evaporator gas withdrawal processing technique - Google Patents
A kind of cleaning of evaporator gas withdrawal processing technique Download PDFInfo
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- CN106139815A CN106139815A CN201510160270.3A CN201510160270A CN106139815A CN 106139815 A CN106139815 A CN 106139815A CN 201510160270 A CN201510160270 A CN 201510160270A CN 106139815 A CN106139815 A CN 106139815A
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Abstract
Product of the present invention belongs to waste gas recovery, environment protection treating device, and particularly a kind of cleaning of evaporator discards recovery processing technique.By have employed vapour cooking, clear water washs, the special process of hot air drying, it is higher that its waste gas produced has temperature, volatile concentrations fluctuation is big, the features such as intermittent discharge, have employed the new technology of " normal-temperature water cooling+water at low temperature condensation+activated carbon secondary absorption ", first the waste gas of high concentration is cooled to about 6 DEG C, the Organic substance in waste gas is made to produce a large amount of condensation, become liquid, concentration in gas phase is substantially reduced, then low temperature, the waste gas of low concentration enters back into absorbent charcoal adsorption tank and adsorbs, in order to ensure the tail gas concentration of discharge being down to extremely low level, it is fully achieved strict discharge standard, the technique that have employed the absorption of second order activity charcoal.This device both can be recovered to oil product, can accomplish again environment protection standard, and operating cost is compared other method and is substantially reduced.
Description
Technical field
This patent product belongs to waste gas recovery, environment protection treating device, and particularly a kind of cleaning of evaporator discards recovery processing technique.
Background technology
In the waste gas recovery governance process of the oil shipment occasions such as oil depot, oil plant, harbour, the toxic harmful exhaust gas that train vehicle groove tank car, cargo tank, oil storage tank are volatilized during changing the cleaning of evaporator before storage quality, routine cleaning, carry out being recycled into fluid oil, so can avoid the discharge of a large amount of pollutant, there is bigger recovery economic benefit simultaneously.
The cleaning of evaporator waste gas that China produces in this field at present is the most untreated, directly discharges, and indivedual occasions have employed washing+absorption method, low-temperature plasma removal method, oxidation burning method.
Washing+absorption method can produce a large amount of waste water, forms secondary pollution, and the exhaust emissions concentration over-standard after absorption, recovering effect is undesirable.
Low-temperature plasma removal method can not process the waste gas of high concentration, first pass through often other PROCESS FOR TREATMENT once after, exhaust gas concentration is reduced, then uses plasma method to process.Plasma method can not be used alone in this occasion, and belongs to pollutant destruction method, it is impossible to reclaiming, do not reclaim benefit, and need to consume a large amount of electric energy, operating cost is high.
Oxidation burning method is similar with low-temperature plasma method, it is impossible to the waste gas of individual processing high concentration, belongs to pollutant and destroys method, it is impossible to reclaims, and does not reclaim benefit, and owing to the device startup time is long, energy consumption is high under the occasion of intermitten service.
Summary of the invention
The present invention is directed to technological difficulties and defect that above-mentioned existing cleaning of evaporator waste gas treatment process exists, it is proposed that the recovery processing technique of a kind of cleaning of evaporator waste gas, concrete process program is as follows:
A kind of cleaning of evaporator gas withdrawal processing technique, comprises the following steps:
(1) the cleaning of evaporator waste gas of high-temperature gas is through filter, after filtering the mechanical admixture comprised in waste gas；
(2) utilizing two grades of cooling systems that high-temperature gas waste gas carries out cooling process, in described high-temperature gas waste gas, contained high-enriched organics and steam are condensed into low temperature gas-liquid mixture；
(3) utilize gas-liquid separator that the low temperature liquid-vapor mixture in step (2) is separated, form low temperature waste gas and low temperature waste liquid；
(4) utilizing three grades of adsorption systems to adsorb low temperature waste gas, the clean gas after then filtering is discharged；
(5) three grades of adsorption systems in step (4) carry out steam desorption, the exhaust residual Organic substance of absorption carries out cooling and obtains fluid oil aqueous mixtures；
(6) step 5 will obtain the gas-liquid separator in fluid oil aqueous mixtures steps for importing (3), and perform follow-up step successively, until terminating reclaimer operation；
(7) oil water separator is utilized to be separated by low temperature waste liquid, it is thus achieved that recyclable oil product and waste liquid.
In technique scheme, two grades of cooling systems described in step (1) are in series by room temperature cooler and low-temperature condenser.Wherein, cleaning of evaporator waste gas is after low-temperature condenser is lowered the temperature, and temperature is down to 6 DEG C.
In technique scheme, described in step (4), three grades of adsorption systems include three groups of absorbent charcoal adsorption tanks and PLC control system.Wherein, three groups of absorbent charcoal adsorption tanks keep state is used alternatingly.
Beneficial effect:
1, the gas withdrawal processing technique that the present invention proposes will use scrubbing tower change into using room temperature cooler and two grades of cooling systems of low-temperature condenser series connection in traditional handicraft, it is to avoid produces the secondary pollution that large amount of sewage causes.
2, absorbing unit in traditional handicraft+low-temperature plasma technique is changed into the technique of activated carbon secondary absorption by the gas withdrawal processing technique that the present invention proposes, and can either reach the strictest discharge standard, can save again a large amount of electric power.
3, the gas withdrawal processing technique adsorption tanks that the present invention proposes use horizontal type structure, and the inside overwhelming majority fills activated carbon granule, fill a small amount of carbon fiber on active carbon bed top, so can improve adsorption effect.
Accompanying drawing explanation
Accompanying drawing 1 is present invention process flow chart.
Detailed description of the invention
For making technical scheme more clean clearly, practising physiognomy combines accompanying drawing and is described further technical scheme, it should be noted that any equivalencing making the technical program and general knowledge are improved and each fallen within protection scope of the present invention.
A kind of custom gas withdrawal processing technique as shown in Figure 1, comprises the following steps:
Comprise the following steps:
(1) the cleaning of evaporator waste gas of the high-temperature gas produced when groove tank car or oil storage tank cleaning of evaporator is through filter, filters the mechanical admixture comprised in waste gas；
(2) utilizing two grades of cooling systems that high-temperature gas waste gas carries out cooling process, enter prime room temperature cooler, temperature is down to room temperature by more than 60 DEG C, then is cooled to about 6 DEG C through low-temperature condenser.Now, contained in waste gas high-enriched organics and the steam overwhelming majority are condensed into liquid；
(3) utilize gas-liquid separator that the low temperature liquid-vapor mixture in step (2) is separated, form low temperature waste gas and low temperature waste liquid；
(4) utilization includes that low temperature waste gas is adsorbed by the adsorption system of three groups of absorbent charcoal adsorption tanks and PLC control system, three groups are temporally switched over by PLC control system, alternately, wherein two groups are respectively at primary adsorption, secondary absorption state, and another group is steam detachment status.Then the clean gas after filtering is discharged；
(5) three grades of adsorption systems in step (4) carry out steam desorption, fluid oil aqueous mixtures is obtained after the Organic substance that activated carbon adsorption system is desorbed out is cooled, with two grades of cooling systems produced by fluid oil aqueous mixtures, all flow into oil water separator separate；
(6) step 5 will obtain the gas-liquid separator in fluid oil aqueous mixtures steps for importing (3), and perform follow-up step successively, until terminating reclaimer operation；
(7) oil water separator is utilized to be separated by low temperature waste liquid, it is thus achieved that recyclable oil product and waste liquid.
Above technical scheme have employed vapour cooking, clear water washs, the special process of hot air drying, it is higher that its waste gas produced has temperature, volatile concentrations fluctuation is big, the features such as intermittent discharge, have employed the new technology of " normal-temperature water cooling+water at low temperature condensation+activated carbon secondary absorption ", first the waste gas of high concentration is cooled to about 6 DEG C, the Organic substance in waste gas is made to produce a large amount of condensation, become liquid, concentration in gas phase is substantially reduced, then low temperature, the waste gas of low concentration enters back into absorbent charcoal adsorption tank and adsorbs, in order to ensure the tail gas concentration of discharge being down to extremely low level, it is fully achieved strict discharge standard, the technique that have employed the absorption of second order activity charcoal.This device both can be recovered to oil product, can accomplish again environment protection standard, and operating cost is compared other method and is substantially reduced.
Claims (5)
1. a cleaning of evaporator gas withdrawal processing technique, comprises the following steps:
(1) the cleaning of evaporator waste gas of high-temperature gas is through filter, after filtering the mechanical admixture comprised in waste gas；
(2) utilizing two grades of cooling systems that high-temperature gas waste gas carries out cooling process, in described high-temperature gas waste gas, contained high-enriched organics and steam are condensed into low temperature gas-liquid mixture；
(3) utilize gas-liquid separator that the low temperature liquid-vapor mixture in step (2) is separated, form low temperature waste gas and low temperature waste liquid；
(4) utilizing three grades of adsorption systems to adsorb low temperature waste gas, the clean gas after then filtering is discharged；
(5) three grades of adsorption systems in step (4) carry out steam desorption, the exhaust residual Organic substance of absorption carries out cooling and obtains fluid oil aqueous mixtures；
(6) step 5 will obtain the gas-liquid separator in fluid oil aqueous mixtures steps for importing (3), and perform follow-up step successively, until terminating reclaimer operation；
(7) oil water separator is utilized to be separated by low temperature waste liquid, it is thus achieved that recyclable oil product and waste liquid.
2. cleaning of evaporator gas withdrawal processing technique as described in claim 1, it is characterised in that two grades of cooling systems described in step (1) are in series by room temperature cooler and low-temperature condenser.
3. cleaning of evaporator gas withdrawal processing technique as described in claim 1, it is characterised in that described in step (4), three grades of adsorption systems include three groups of absorbent charcoal adsorption tanks and PLC control system.
4. cleaning of evaporator gas withdrawal processing technique as described in claim 2, it is characterised in that cleaning of evaporator waste gas is after low-temperature condenser is lowered the temperature, and temperature is down to 6 DEG C.
5. cleaning of evaporator gas withdrawal processing technique as described in claim 3, it is characterised in that described three groups of absorbent charcoal adsorption tanks keep state is used alternatingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510160270.3A CN106139815A (en) | 2015-04-08 | 2015-04-08 | A kind of cleaning of evaporator gas withdrawal processing technique |
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| CN201510160270.3A CN106139815A (en) | 2015-04-08 | 2015-04-08 | A kind of cleaning of evaporator gas withdrawal processing technique |
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| CN106139815A true CN106139815A (en) | 2016-11-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126375A (en) * | 2017-06-27 | 2019-01-04 | 中国石油化工股份有限公司 | Device for recovering oil and gas and method during a kind of clear tank of gas station's storage tank |
| CN110860174A (en) * | 2018-08-27 | 2020-03-06 | 江苏中远环保科技有限公司 | Circulating oil-gas separation method |
| CN112691494A (en) * | 2020-12-25 | 2021-04-23 | 佛山市正州环保通风设备有限公司 | Industrial waste gas desulfurization method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053733A (en) * | 2007-02-05 | 2007-10-17 | 马军 | Processing method for organic waste gas |
| CN101269292A (en) * | 2007-03-21 | 2008-09-24 | 北京云辰天环保科技有限公司 | Non-secondary pollution cyclic utilization multi-organic waste gas treatment method |
| CN101274150A (en) * | 2007-12-17 | 2008-10-01 | 蔡志煌 | Method for cleaning, recovering and treating painted lacquer exhaust organic gas and device |
-
2015
- 2015-04-08 CN CN201510160270.3A patent/CN106139815A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053733A (en) * | 2007-02-05 | 2007-10-17 | 马军 | Processing method for organic waste gas |
| CN101269292A (en) * | 2007-03-21 | 2008-09-24 | 北京云辰天环保科技有限公司 | Non-secondary pollution cyclic utilization multi-organic waste gas treatment method |
| CN101274150A (en) * | 2007-12-17 | 2008-10-01 | 蔡志煌 | Method for cleaning, recovering and treating painted lacquer exhaust organic gas and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126375A (en) * | 2017-06-27 | 2019-01-04 | 中国石油化工股份有限公司 | Device for recovering oil and gas and method during a kind of clear tank of gas station's storage tank |
| CN110860174A (en) * | 2018-08-27 | 2020-03-06 | 江苏中远环保科技有限公司 | Circulating oil-gas separation method |
| CN112691494A (en) * | 2020-12-25 | 2021-04-23 | 佛山市正州环保通风设备有限公司 | Industrial waste gas desulfurization method |
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Application publication date: 20161123 |