CN102806001A - Method and device for selectively removing hydrogen sulfide by use of ultrasonically atomized liquid droplets - Google Patents
Method and device for selectively removing hydrogen sulfide by use of ultrasonically atomized liquid droplets Download PDFInfo
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- CN102806001A CN102806001A CN201210339435XA CN201210339435A CN102806001A CN 102806001 A CN102806001 A CN 102806001A CN 201210339435X A CN201210339435X A CN 201210339435XA CN 201210339435 A CN201210339435 A CN 201210339435A CN 102806001 A CN102806001 A CN 102806001A
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Abstract
The invention relates to a method and device for selectively removing hydrogen sulfide by use of ultrasonically atomized liquid droplets, and provides a method for selectively removing hydrogen sulfide by use of ultrasonically atomized liquid droplets. The method comprises (i) atomizing a methyldiethanolamine solution by ultrasonic atomization to give liquid droplets with a size of 10-15mum; (ii) uniformly mixing the obtained methyldiethanolamine liquid droplets with a gas containing hydrogen sulfide and spraying the mixture into a cyclone within time shorten than one second; (iii) in the cyclone, allowing the methyldiethanolamine liquid droplets to absorb the hydrogen sulfide in the gas while separating the methyldiethanolamine liquid droplets in the cyclone field of the cyclone, and aggregating to form a hydrogen sulfide-rich methyldiethanolamine solution; and (iv) recycling the hydrogen sulfide-rich methyldiethanolamine solution, atomizing by ultrasonic atomization to give liquid droplets, and cyclically using the liquid droplets in the step (ii). Also provided is a device for selectively removing hydrogen sulfide by use of ultrasonically atomized liquid droplets.
Description
Technical field
The invention belongs to the chemical industry environmental protection field; Relate to a kind of employing ultrasonic ultrasonic delay line memory the methyl diethanolamine atomizing is drop; Selectively removing hydrogen sulfide in cyclone; And in eddy flow field, isolate drop, and be purified the method for gas, be suitable for handling the selective desulfurization and the heterogeneous separation process of solution-air that comprise sour gas such as sulfide hydrogen, carbon dioxide.Specifically, the invention provides the cyclonic separation method and apparatus of selective desulfurization in the H 2 S-containing gas sulfur removal technology, absorption drop.
Background technology
Along with the development of economic society, air pollution that combustion of fossil fuel caused and greenhouse effects are seriously threatening human earth environment of depending on for existence, in utilizing the process of fossil feedstock, and inorganic sulfur (hydrogen sulfide, SO
2Deng) and the factor for earth environment is had the greatest impact that arranges into of carbon dioxide.
According to the absorbing and removing Principle of Process, present desulfurization and decarburization separation method mainly contains: absorption process, absorption method, membrane separation process etc.Wherein hydramine method and hot potash method become the main absorption process that a large amount of sulfur-bearing carbon containing gaseous mixtures discharge in main energy sources class manufacturers such as petrochemical industry, Coal Chemical Industry, power plant in the chemical absorption method.Usually the equipment that adopts is equipment such as packed tower, spray column or plate column, and the desulfurization and decarburization agent is many to cause contact area few with than amounts of solution attitude and gas haptoreaction, and the solvent use amount is big, the not high shortcoming of efficient.And owing to absorb sour gas, exist that mass transfer effect is poor, energy consumption is big, equipment volume is huge, the one-time investment cost high, problems such as fluctuation of service through tower.
Therefore; Present sulfurous gas purification techniques means are unsatisfactory to the selective desulfurization effect of sour gas such as sulfide hydrogen and carbon dioxide; Can not in multiple sour gas, effectively, optionally remove hydrogen sulfide gas, this also is to be badly in need of the problem that will solve in the field gas purification such as present gas production.
One Chinese patent application CN 200710020017.3 discloses a kind of gas absorption purifier, and equipment is a vertical cylindrical shell, and after letting pending gas get into tower, one side rises along flight rotation one side, contacts with absorption liquid is reverse; Absorption liquid forms liquid film, brin and drop under the turbulent shear effect of eddy flow field, make the abundant absorbing contacting of gas-liquid.But, only rely on gas-liquid collision fragmentation can't make absorption liquid fully broken fully, and size droplet diameter is very big, the haptoreaction area is limited, can't reach good assimilation effect.
One Chinese patent application CN 01242489.7 discloses a kind of toxic and harmful absorbing and purifying device, in the absorption tower, has arranged bilevel absorption liquid shower nozzle, is sprayed into drop and is absorbed with toxic gas.But this device is not still broken away from tower, and the big investment of volume is big, and still there is the excessive factor of size droplet diameter in the drop of shower nozzle ejection, causes the absorption liquid waste.
One Chinese patent application 200910051410.8 discloses a kind of eddy flow intensifying method and device of gas sweetening hydrogen; This method is carried out cyclonic separation earlier to the fuel gas gaseous mixture; To remove the heavy hydrocarbon component of wherein carrying secretly; Again the gaseous mixture that has removed the heavy hydrocarbon component is carried out desulfurization,, be purified gas to remove the 2 S component of wherein carrying secretly.But the method for this depriving hydrogen sulphide still is traditional interior absorption of desulfurizing tower, and the absorption liquid use amount is big, and to the acid gas absorption non-selectivity.
Therefore; For satisfying environmental requirement; Reduce the solvent use amount and improve absorption efficiency, be necessary can carry out the characteristics that selectivity absorbs to sulfide hydrogen sour gas such as natural gas, refinery gas, develop a kind of novelty, effectively, the selective desulfurization method of good economy performance.
Summary of the invention
The invention provides a kind of method and apparatus of ultrasonic atomizatio drop selective desulfurization hydrogen of novelty, thereby solved the problem that exists in the prior art.
The objective of the invention is to, propose a kind of methods such as ultrasonic atomization or spraying of utilizing, produce the methyl diethanolamine drop; Strengthen the gas-selectively hydrogen sulfide removal process, improve separative efficiency, reduce equipment volume; Practice thrift the methyl diethanolamine use amount, thereby solve the problem that exists in the prior art.
Primary technical problem to be solved by this invention is, it is not strong to solve in the existing H 2 S-containing gas removing process desulfuration selectivity, and absorption efficiency is low, causes the problem of methyl diethanolamine waste, has improved absorption efficiency and has absorbed precision.
Another technical problem that the present invention also solves simultaneously is; A kind of desulfurizer with above-mentioned efficient selective sulfur method is provided; This apparatus structure is simple, implements easily, meets the desulphurization plant design specification; Can turn round by stability and high efficiency, especially be fit to H 2 S-containing gas and break away from the characteristics that treating capacity is big, gas componant is complicated in the technology.
On the one hand, the invention provides a kind of method of ultrasonic atomizatio drop selective desulfurization hydrogen, this method may further comprise the steps:
(i) utilize ultrasonic atomization that the methyldiethanolamine solution atomizing is the drop of particle diameter for 10-50 μ m;
(ii) the methyl diethanolamine drop with gained evenly mixes with hydrogen sulfide containing gas, and being no more than in time of 1 second, mixture is sprayed in the cyclone;
(iii) in cyclone, the methyl diethanolamine drop absorbs the hydrogen sulfide in the gas, and the methyl diethanolamine drop is separated in the eddy flow field of cyclone simultaneously, and assembles the methyl diethanolamine liquid that hydrogen sulfide is rich in formation; And
After (iv) being rich in the methyl diethanolamine liquid regeneration of hydrogen sulfide, again it is drop through the ultrasonic atomization atomizing, and the drop circulation of gained is used for above-mentioned steps (ii).
One preferred embodiment in, said hydrogen sulfide containing gas contains hydrogen sulfide and carbon dioxide, wherein the concentration of hydrogen sulfide is between 100-10000ppm.
Another preferred embodiment in, in cyclone, hydrogen sulfide containing gas and the abundant haptoreaction of methyl diethanolamine drop, hydrogen sulfide is fully absorbed by methyl diethanol amine drop, absorptivity is higher than 99.5%.
Another preferred embodiment in; In cyclone, methyl diethanolamine drop and hydrogen sulfide containing gas carry out cyclonic separation simultaneously, and the methyl diethanolamine drop is separated in the eddy flow field of cyclone; Separative efficiency is higher than 90%, and maximum pressure falls and is not more than 30mmH
2O.
On the other hand, the invention provides a kind of device of ultrasonic atomizatio drop selective desulfurization hydrogen, this device comprises:
Ultrasonic ultrasonic delay line memory, being used for the methyldiethanolamine solution atomizing is the drop of 10-50 μ m for particle diameter;
The bottom is provided with the droplet distribution pipe of ultrasonic ultrasonic delay line memory in pipe, is used for the methyl diethanolamine drop of gained is evenly mixed with hydrogen sulfide containing gas;
With the cyclone that the droplet distribution pipe is connected, be used for making that the methyl diethanolamine drop absorbs the hydrogen sulfide of gas, the methyl diethanolamine drop is separated in the eddy flow field of cyclone simultaneously, and assembles the methyl diethanolamine liquid that hydrogen sulfide is rich in formation.
One preferred embodiment in; Said droplet distribution pipe is connected to gas feed; Gas is being carried the methyl diethanolamine drop secretly and is being got in the cyclone in pipe, the abundant absorbing contacting of the hydrogen sulfide in methyl diethanolamine drop and the gas, and the concentration of hydrogen sulfide is less than 20ppm in the gas after the desulfurization.
Another preferred embodiment in, the reaction of methyl diethanolamine drop absorbing hydrogen sulphide is carried out under the hypergravity environment, the haptoreaction time was less than 0.1 second.
Another preferred embodiment in, said cyclone also carries out the methyl diethanolamine drop simultaneously to be separated with the solution-air of hydrogen sulfide gas, purified gas is discharged from the overfall of cyclone, the drop enrichment gets into amine liquid regenerating unit regeneration back recycle.
Another preferred embodiment in, the quantity of said ultrasonic ultrasonic delay line memory is one or more.
Another preferred embodiment in, the quantity of said cyclone is one or more.
Description of drawings
Fig. 1 is the schematic flow sheet according to the ultrasonic atomization drop selective desulfurization hydrogen technology of the application's a embodiment.
Fig. 2 carries out the sketch map that contact mass transfer is reacted according to gas of the present invention and drop.
The specific embodiment
Inventor of the present invention finds after having passed through extensive and deep research: in present process equipment; Reaction also is in a very big yardstick and carries out because solution-air two contacts, and absorption efficiency is low, and the methyl diethanolamine utilization rate is low; The big investment of equipment volume is big; And how therefore fluctuation of service, come the reinforcing desulfuration process just in industrial research, more and more to be paid close attention in small scale even the following yardstick of micron order; Adopt at present both at home and abroad extensively hydramine method etc. as sulfur method, how the absorption reaction of hydramine is become micron level, thereby improve absorption efficiency, reach the fast selective desulfurization purpose of economizing; From this angle, inventor of the present invention has proposed employing drop method and has strengthened the selective desulfurization process;
As shown in Figure 2, the gas-liquid mass transferring reaction mainly is to overcome resistance between gas liquid film, in the present invention; Methyl diethanolamine contacts with sulfur-bearing carbon containing gaseous mixture with little drop form; It is long-pending greatly to have increased contact surface, and gaseous mixture can fully contact little drop at a terrific speed, reacts absorption; And reaction speed and absorption efficiency, with its little drop composition, gas componant, to contain sulphur concentration, reaction temperature pressure etc. relevant;
Is drop through ultrasonic ultrasonic delay line memory with the methyl diethanolamine atomizing, has increased gas-liquid contact area and hydrogen sulfide absorption efficient greatly; The gas of entrained drip carries out the solution-air cyclonic separation of low pressure drop simultaneously, and separative efficiency can reach more than 90%; So both accomplish the coupling that desulphurization reaction and eddy flow take off liquid, improved the utilization ratio of methyl diethanolamine, practiced thrift cost and subsequent regeneration energy consumption, and made the volume of industrial equipment reduce again, reduced manufacturing cost.Based on above-mentioned discovery, the present invention is accomplished.
In first aspect of the present invention, a kind of method of ultrasonic atomizatio drop selective desulfurization hydrogen is provided, this method comprises:
Utilize ultrasonic ultrasonic delay line memory that the methyldiethanolamine solution atomizing is the drop of particle diameter for 10-50 μ m;
The methyl diethanolamine drop is evenly mixed with hydrogen sulfide containing gas,, spray in the cyclone being no more than in time of 1 second;
In cyclone, the methyl diethanolamine drop absorbs the hydrogen sulfide in the gas, and the methyl diethanolamine drop is separated in the eddy flow field of cyclone simultaneously, and assembles the methyl diethanolamine liquid that hydrogen sulfide is rich in formation;
After the rich amine liquid regeneration, be drop through the atomizing of mixture ultrasonic ultrasonic delay line memory again, and recycle.
In the present invention, be provided with methyl diethanolamine drop generation systems and cyclone, optionally removed the hydrogen sulfide in the gaseous mixture, isolated the drop after absorbing simultaneously, thereby accomplished absorption, separation processes flow process efficiently, once.
In the present invention, the concentration of said methyldiethanolamine solution is 20-80%, and operating temperature is 20-120 ℃.
In the present invention, in the said gaseous mixture concentration of hydrogen sulfide between 100-10000ppm, SO
2Content is not more than 5%, and carbon dioxide content is not more than 30%.
In the present invention, the sour gas composition in the gaseous mixture is carbon dioxide, CO, SO
2, NO
x, and the mixture of above-mentioned one or more gases.
In the present invention, the quantity of methyl diethanolamine drop generation systems and cyclone and arrangement can be according to condition appropriate design such as the tolerance of gaseous mixture air inlet, pressure, compositions.
In the present invention, the treating capacity of said ultrasonic ultrasonic delay line memory and spray velocity can be adjusted as the case may be, and said ultrasonic ultrasonic delay line memory also can a plurality ofly carry out parallel connection and arrange.
In the present invention, said cyclone is the selection different sizes such as tolerance of absorption cleaning as required, or the parallel connection of a plurality of cyclone is used
In second aspect of the present invention, a kind of device of ultrasonic atomizatio drop selective desulfurization hydrogen is provided, this device comprises:
Ultrasonic ultrasonic delay line memory is used for methyl diethanolamine is atomized, and drop evenly disperses;
Droplet distribution pipe, wherein said ultrasonic ultrasonic delay line memory are placed on bottom in the droplet distribution pipe, and sulfide hydrogen gaseous mixture entrained drip in the droplet distribution pipe gets into cyclone rapidly;
With the cyclone that the droplet distribution pipe is connected, gaseous mixture fully contacted with drop moment in cyclone, accomplished reaction, selectivity absorbing hydrogen sulphide and solution-air separating process synchronously.
In the present invention, the top of cyclone is overfall, and the gaseous mixture after the purification is discharged by the overfall of cyclone; The bottom of cyclone is a underflow opening, and the reclaiming after the underflow opening enrichment of cyclone of isolated methyl diethanolamine amine liquid recycles.
In the present invention, ultrasonic ultrasonic delay line memory is even with the methyl diethanolamine atomizing, and size droplet diameter is no more than 50 microns, thereby has increased methyl diethanolamine and hydrogen sulfide contact area, improves absorption efficiency, and has shortened the reaction time.
In the present invention, the time of gas entering cyclone has narrowed down to the shortest, when guaranteeing absorbing hydrogen sulphide efficient, has avoided the haptoreaction of methyl diethanolamine and carbon dioxide substantially, has strengthened the selectivity to hydrogen sulfide absorption.
In the present invention, the methyl diethanolamine drop is brought into cyclone, the concentration≤10ppm of hydrogen sulfide in the gaseous mixture after the desulfurization with reverse contact of gaseous mixture.
In the present invention, said gas entrained drip carries out solution-air rapidly in cyclone separates, and gas-liquid separation efficient is not less than 90%.
In the present invention, the nominal operation pressure of said cyclone separator under standard state is reduced to 0.00015-0.00025MPa.
Below referring to accompanying drawing.
Fig. 1 is the schematic flow sheet according to the ultrasonic atomization drop selective desulfurization hydrogen technology of the application's a embodiment.As shown in Figure 1; Place the ultrasonic ultrasonic delay line memory 1 of bottom in the droplet distribution pipe 2 that the methyldiethanolamine solution atomizing is drop; The drop of gained evenly mixes with the sulfide hydrogen gaseous mixture that is got into droplet distribution pipe 2 by the inlet of droplet distribution pipe 2, and the outlet of mixture by droplet distribution pipe 2 sprayed in the cyclone 3, and drop absorbs the hydrogen sulfide in the gaseous mixture; Purified gas is discharged from the overfall of cyclone 3; Drop is separated in the eddy flow field of cyclone 3 simultaneously, and isolated methyl diethanolamine amine liquid (enriched amine liquid) reclaiming after the underflow opening enrichment of cyclone recycles.
Major advantage of the present invention is:
(1) method of the present invention has overcome in the existing gas sweetening hydrogen technical process and uses desulfurizing tower equipment such as plate column, packed tower to cause methyl diethanolamine fully to contact with gas, has greatly increased the problem of energy charge of loss and the regeneration of absorption solution system of methyl diethanolamine.Through methyl diethanolamine is become droplet morphology, haptoreaction absorbs rapidly in cyclone, and the rotating flow that carries out solution-air simultaneously separates, and reduces the methyl diethanolamine loss, alleviates the regenerative system energy consumption, and has improved the productivity ratio of downstream sulfur products.
(2) drop selective desulfurization hydrogen production device of the present invention, adopting cyclone is the key reaction separation equipment, compact conformation is simple, floor space is little, the operation efficient stable; It is fast to have reaction speed; Obvious advantages such as it is high that selectivity absorbs precision, and separative efficiency is high, and energy consumption is low.
(3) method and apparatus of ultrasonic atomizatio drop selective desulfurization hydrogen of the present invention; The methods such as spray absorption of the conventional filler of comparing tower, methyl diethanolamine circulation consumption still less, the regeneration energy consumption reduces; And reduced equipment investment, society, economy and environmental benefit are remarkable.
Embodiment
Further set forth the present invention below in conjunction with concrete embodiment.But, should be understood that these embodiment only are used to the present invention is described and do not constitute limitation of the scope of the invention.The test method of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Except as otherwise noted, all percentage and umber are by weight.
Embodiment 1:
At a 50000m
3In the gas production treatment process of/h; According to method of the present invention; Adopt drop reinforcing desulfuration decarbonization device; Separate in order to the natural gas gaseous mixture that contains hydrogen sulfide and carbon dioxide etc. is strengthened, reach to accomplish with high efficiency, low-loss natural gas in the multiple sour gas gaseous mixture and the effective of sour gas are separated, its concrete operation and effect are described below:
1. mist character and operating condition
Gaseous mixture is a natural gas, and main component is 96% alkane, 1% hydrogen sulfide and about 9% carbon dioxide.The natural gas processing amount is 5000m
3/ h, the density of gas phase operating temperature is 50 ℃, operating pressure is 2.7MPa.The concentration of N-Propylene Glycol amine aqueous solution (methyl diethanolamine) is 20-40%, atomizes through ultrasonic ultrasonic delay line memory, below the average atomizing particle diameter to 50 micron.
2. embodiment
The methyl diethanolamine drop produces through ultrasonic ultrasonic delay line memory, below the average drop particle diameter to 50 micron; The gaseous mixture of sulfur-bearing carbon containing gets into cyclone rapidly; In cyclone, a large amount of methyl diethanolamine drops fully contact with sulphur carbon component in the mist and react; Then, the gas behind the desulfurization and decarburization is being carried the methyl diethanolamine drop secretly and is being got into cyclone, carries out the solution-air cyclonic separation of ultra low pressure drop; With methyl diethanolamine with purify after gaseous mixture separate, pressure drop is less than 30mmH
2O (300Pa); The content of hydrogen sulfide is less than 10ppm in the purified gas; The regeneration of methyl diethanolamine drop enriching and recovering, recycle.
3. experimental result
After using drop reinforcing desulfuration decarbonization method to separate, cyclone gaseous phase outlet hydrogen sulfide content is not more than 10ppm, carries liquid content secretly less than 50mg/m
3
All documents in that the present invention mentions are all quoted as a reference in this application, are just quoted such as a reference separately as each piece document.Should be understood that in addition after having read above-mentioned teachings of the present invention, those skilled in the art can do various changes or modification to the present invention, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (10)
1. the method for a ultrasonic atomizatio drop selective desulfurization hydrogen, this method may further comprise the steps:
(i) utilize ultrasonic atomization that the methyldiethanolamine solution atomizing is the drop of particle diameter for 10-50 μ m;
(ii) the methyl diethanolamine drop with gained evenly mixes with hydrogen sulfide containing gas, and being no more than in time of 1 second, mixture is sprayed in the cyclone;
(iii) in cyclone, the methyl diethanolamine drop absorbs the hydrogen sulfide in the gas, and the methyl diethanolamine drop is separated in the eddy flow field of cyclone simultaneously, and assembles the methyl diethanolamine liquid that hydrogen sulfide is rich in formation; And
After (iv) being rich in the methyl diethanolamine liquid regeneration of hydrogen sulfide, again it is drop through the ultrasonic atomization atomizing, and the drop circulation of gained is used for above-mentioned steps (ii).
2. the method for claim 1 is characterized in that, said hydrogen sulfide containing gas contains hydrogen sulfide and carbon dioxide, and wherein the concentration of hydrogen sulfide is between 100-10000ppm.
3. the method for claim 1 is characterized in that, in cyclone, and hydrogen sulfide containing gas and the abundant haptoreaction of methyl diethanolamine drop, hydrogen sulfide is fully absorbed by methyl diethanol amine drop, and absorptivity is higher than 99.5%.
4. the method for claim 1 is characterized in that, in cyclone; Methyl diethanolamine drop and hydrogen sulfide containing gas carry out cyclonic separation simultaneously; The methyl diethanolamine drop is separated in the eddy flow field of cyclone, and separative efficiency is higher than 90%, and maximum pressure falls and is not more than 30mmH
2O.
5. the device of a ultrasonic atomizatio drop selective desulfurization hydrogen, this device comprises:
Ultrasonic ultrasonic delay line memory (1), being used for the methyldiethanolamine solution atomizing is the drop of 10-50 μ m for particle diameter;
The bottom is provided with the droplet distribution pipe (2) of ultrasonic ultrasonic delay line memory (1) in pipe, is used for the methyl diethanolamine drop of gained is evenly mixed with hydrogen sulfide containing gas;
The cyclone (3) that is connected with droplet distribution pipe (2); Be used for making that the methyl diethanolamine drop absorbs the hydrogen sulfide of gas; The methyl diethanolamine drop is separated in the eddy flow field of cyclone simultaneously, and assembles the methyl diethanolamine liquid that hydrogen sulfide is rich in formation.
6. device as claimed in claim 5; It is characterized in that; Said droplet distribution pipe (2) is connected to gas feed; Gas is being carried the methyl diethanolamine drop secretly and is being got in the cyclone (3) in pipe, the abundant absorbing contacting of the hydrogen sulfide in methyl diethanolamine drop and the gas, and the concentration of hydrogen sulfide is less than 20ppm in the gas after the desulfurization.
7. device as claimed in claim 5 is characterized in that, the reaction of methyl diethanolamine drop absorbing hydrogen sulphide is carried out under the hypergravity environment, and the haptoreaction time was less than 0.1 second.
8. device as claimed in claim 5; It is characterized in that; Said cyclone (3) also carries out the methyl diethanolamine drop simultaneously to be separated with the solution-air of hydrogen sulfide gas, and purified gas is discharged from the overfall of cyclone (3), and the drop enrichment gets into amine liquid regenerating unit regeneration back recycle.
9. device as claimed in claim 5 is characterized in that, the quantity of said ultrasonic ultrasonic delay line memory (1) is one or more.
10. device as claimed in claim 5 is characterized in that, the quantity of said cyclone (3) is one or more.
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| CN103638802A (en) * | 2013-12-17 | 2014-03-19 | 中建安装工程有限公司 | Device and method for processing acid gas of refinery plant |
| CN105854559A (en) * | 2016-05-04 | 2016-08-17 | 山东源根化学技术研发有限公司 | Novel papermaking white mud desulfurization device and process |
| CN107261764A (en) * | 2017-08-08 | 2017-10-20 | 湖南云平环保科技有限公司 | VOCs controlling devices and method |
| CN108057334A (en) * | 2017-02-28 | 2018-05-22 | 中国矿业大学 | A kind of method that chemical absorbing liquid ultrasonic atomizatio spray eliminates the CO in restricted clearance |
| CN109420422A (en) * | 2017-08-22 | 2019-03-05 | 中国石油化工股份有限公司 | A method of H 2 S-containing gas is removed using ultrasonic equipment |
| CN111676077A (en) * | 2020-06-23 | 2020-09-18 | 中国石油大学(华东) | Efficient atomized glycol dehydration device and use method and application thereof |
| CN114504942A (en) * | 2022-03-02 | 2022-05-17 | 华北理工大学 | Treatment system and treatment method for flue gas of iron and steel plant |
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| CN103638802A (en) * | 2013-12-17 | 2014-03-19 | 中建安装工程有限公司 | Device and method for processing acid gas of refinery plant |
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| CN111676077A (en) * | 2020-06-23 | 2020-09-18 | 中国石油大学(华东) | Efficient atomized glycol dehydration device and use method and application thereof |
| CN111676077B (en) * | 2020-06-23 | 2022-02-11 | 中国石油大学(华东) | Efficient atomized glycol dehydration device and use method and application thereof |
| CN114504942A (en) * | 2022-03-02 | 2022-05-17 | 华北理工大学 | Treatment system and treatment method for flue gas of iron and steel plant |
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