CN107519735A - A kind of composition of carbon dioxide removal from gaseous mixture and the method for flue gas decarbonization - Google Patents
A kind of composition of carbon dioxide removal from gaseous mixture and the method for flue gas decarbonization Download PDFInfo
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- CN107519735A CN107519735A CN201710719778.1A CN201710719778A CN107519735A CN 107519735 A CN107519735 A CN 107519735A CN 201710719778 A CN201710719778 A CN 201710719778A CN 107519735 A CN107519735 A CN 107519735A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
- B01D2252/2053—Other nitrogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
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- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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Abstract
The invention provides a kind of flue gas decarbonization composition, including：The main parts by weight of absorbent 5~50；The parts by weight of activator 0.1~20；The parts by weight of desorption promoter 0.1~5；The parts by weight of water 25~95；The main absorbent is diazabicyclooctane；One or more of the activator in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine.Flue gas decarbonization composition provided by the invention uses diazabicyclooctane as main absorbent, using diethylenetriamine, TEPA or triethylene diamine as activator, and the components such as desorption promoter are combined, CO good in combination with specific proportioning carbon dioxide removal effect2Absorptive capacity is high, infiltration rate is fast, carbon-drop rate is high, desorption energy consumption is low.
Description
Technical field
The present invention relates to gas isolation of purified technical field, is taken off more particularly, to a kind of flue gas decarbonization composition and flue gas
The method of carbon.
Background technology
In recent decades, due to CO2Excessive emissions cause epidermic temperature constantly to raise, brought to environment
Very big harm, various natural calamities also grow in intensity, and the utilization process of oil, coal and natural gas etc. can produce CO2, change
Various synthesizers, hydrogen energy source in the industry such as, biology, the energy, metallurgy prepare gas, biorefinery periodic off-gases, metallurgy and generating
Also the CO containing various concentrations in emission of factory etc.2, CO is removed for production link2It is just essential as one
Production process, CO is reduced for post processing link2Direct discharge it is significant to environmental protection for the survival of mankind.
To the CO of discharge2Reclaimed, fixed, utilization and renewable resources, it has also become countries in the world particularly developed country extremely closes
The problem of note.CO2Emission reduction is the climate change significant problem that the current whole world faces, and is tight to industrial economy especially energy industry
High challenge.
CO2The technology main flow of subtractive process is broadly divided into 3 major classes：Solvent absorption decarburization technique, UF membrane decarburization skill
Art, solid absorbent absorption decarburization technique, wherein, solvent absorption decarburization technique is most attractive so far, using also most
For a kind of extensive isolation technics, current extensive CO2Trapping still using the good amine process of the chemo-selective under low partial pressure as
It is main, trap CO in amine method2During, the organic amine in solution is easily and O2、CO2, carbide etc. chemical degradation occurs, also easily occur
Thermal degradation, especially with O in flue gas2Oxidative degradation occupy the first.On the one hand the formation of organic amine catabolite promotes amine damage
Consumption, on the other hand aggravate the corrosion of equipment and the problems such as cause solution foaming, cause to produce unstable.Amine degradation problem one
It is directly CO in amine method trapping flue gas2During existing insoluble technical barrier.In addition, renewable absorption cycle warp
Cross the development of nearly more than ten years, develop into the absorbent of compounding ingredients from the absorbent of one pack system high energy consumption, the component of absorbent and
Content problem, it is still the study hotspot of countries in the world scientific circles.In order to further improve the absorbability of absorbent, improve it
The ability of oxidative degradation, the energy consumption of corrosivity, reduction when being lost and regenerating caused by volatilization is reduced, people endeavour always
In the efficient chemical solution absorbent of exploitation.
CN102049173A one kind deep removal CO from admixture of gas2Method, made with a kind of compound amine aqueous solution
For absorbent, the concentration of total amine is 20%~50% by weight percentage in absorbent；Serotonin includes：Main absorbent is
MDEA, content account for the 70%~90% of total amine concentration；Absorbefacient is two kinds in HEP, DMA2P, DMAE, and absorbefacient accounts for
The 10%~30% of total amine concentration.CO in a kind of recovery waste gas of CA200710011508.12With composite decarbonizing solution, Ci Zhongfu
Composition and the percentage by weight for closing solution are as follows：Compound amine aqueous solution 20~60%, wherein one kind containing low concentration or more
One or more long response time rate amines of kind fast response rate amines and higher concentration, wherein fast response rate amines use an ethanol
Amine or diethanol amine or piperazine, long response time rate amines are MEDA or ANMP or TEA, and selective absorbing composition is polyalcohol ether, inhibition
Agent is sodium vanadate, and antioxidant content is sodium sulphate or copper acetate.The N methyldiethanol amine of CN200410066416.X improvement takes off
Carbon solution, mainly it is made up of the N methyldiethanol amine aqueous solution and activator, activator is made up of morpholine and piperazine, activator
Weight ratio with N methyldiethanol amine is 0.05~0.20.But mostly there is CO in above-mentioned existing flue gas decarburization absorption agent2
The a series of problems such as infiltration rate is slow, desorption efficiency is low, desorption energy consumption height.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of flue gas decarbonization composition, and the present invention provides
Flue gas decarbonization composition CO2Absorptive capacity is high, infiltration rate is fast, carbon-drop rate is high, desorption energy consumption is low.
The invention provides a kind of flue gas decarbonization composition, including：
The main absorbent is diazabicyclooctane；
One kind in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine of the activator or
It is several.
Preferably, one kind in citric acid, sodium lactate, sodium acetate, sodium citrate and lactic acid of the desorption promoter or
It is several.
Preferably, the flue gas decarbonization composition also includes corrosion inhibiter；The corrosion inhibiter is 0.05~2 parts by weight.
Preferably, the corrosion inhibiter is made up of metal oxide and single oily imidazoline；The metal oxide is selected from vanadic acid
One or more in salt, metavanadate, vanadic anhydride, basic carbonate ketone and potassium antimony tartrate；The metal oxide with
The mass ratio of single oily imidazoline is 1：(0.05~2).
Preferably, the flue gas decarbonization composition also includes antioxidant；The antioxidant is selected from dodecyl to benzene two
One or more in phenol, hydroquinones, anthraquinone, anthraquinone disulfonic acid and anthraquinone disulphonate；The antioxidant is 0.05~5
Parts by weight.
Preferably, the flue gas decarbonization composition includes：
The invention provides a kind of preparation method of the flue gas decarbonization composition as described in above-mentioned technical scheme, including：
Main absorbent, activator, desorption promoter and water are mixed, obtain flue gas decarbonization composition.
The invention provides a kind of method of flue gas decarbonization, including：
Mixed gas containing carbon dioxide is contacted with the decarburization composition described in claim 1.
Preferably, the condition of the contact includes：Temperature is 30~80 DEG C, and liquid-gas ratio is 0.05~3.0 kg/Nm3。
Preferably, the mode of the contact is counter current contacting.
Compared with prior art, the invention provides a kind of flue gas decarbonization composition, including：The main weight of absorbent 5~50
Part；The parts by weight of activator 0.1~20；The parts by weight of desorption promoter 0.1~5；The parts by weight of water 25~95；The main absorbent is two
Azabicyclooctane；The activator is in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine
It is one or more of.Flue gas decarbonization composition provided by the invention uses diazabicyclooctane as main absorbent, with divinyl three
Amine, TEPA or triethylene diamine are activator, and combine the components such as desorption promoter, de- in combination with specific proportioning
Removing carbon dioxide effect is good, CO2Absorptive capacity is high, infiltration rate is fast, carbon-drop rate is high, desorption energy consumption is low.
Embodiment
The invention provides a kind of flue gas decarbonization composition, including：
The main absorbent is diazabicyclooctane；
One kind in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine of the activator or
It is several.
Flue gas decarbonization composition provided by the invention includes the main absorbent of 5~50 parts by weight；Preferably include 10~45 weights
Measure the main absorbent of part；More preferably include the main absorbent of 13~40 parts by weight.
Main absorbent of the present invention is diazabicyclooctane.The present invention comes for the diazabicyclooctane
Source is commercially available without limiting.
The above-mentioned diazabicyclooctane of use of the invention is as main absorbent components, the suction for carbon dioxide
Fruit of producing effects is good, and absorptive capacity is high.
Flue gas decarbonization composition provided by the invention includes the activator of 0.1~20 parts by weight；Preferably include 1~15 weight
Measure the activator of part；More preferably include the activator of 1.5~12 parts by weight；Most preferably include the activator of 3~10 parts by weight.
Activator of the present invention is in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine
It is one or more of.
Source of the invention for above-mentioned activator is commercially available without limiting.
The above-mentioned diazabicyclooctane of the present invention is as main absorbent components, the activation of coordinated particular types and proportioning
Agent is for the good absorbing effect of carbon dioxide, CO2Absorptive capacity is high, infiltration rate is fast, carbon-drop rate is high, desorption energy consumption is low.
Flue gas decarbonization composition provided by the invention includes the desorption promoter of 0.1~5 parts by weight；Preferably include 0.5~4
The desorption promoter of parts by weight；More preferably include the desorption promoter of 1~3 parts by weight.
According to the present invention, the desorption promoter is preferably selected from citric acid, sodium lactate, sodium acetate, sodium citrate and lactic acid
One or more；One or more more preferably in citric acid, sodium lactate, sodium citrate and lactic acid.
Source of the invention for the desorption promoter is commercially available without limiting.
Flue gas decarbonization composition provided by the invention includes the water of 25~95 parts by weight；Preferably include 30~90 parts by weight
Water.
Flue gas decarbonization composition provided by the invention preferably also includes the corrosion inhibiter of 0.05~2 parts by weight；Preferably include
The corrosion inhibiter of 0.5~1.5 parts by weight；The more preferably corrosion inhibiter of 0.5~1.2 parts by weight.
Corrosion inhibiter of the present invention is preferably made up of metal oxide and single oily imidazoline；The metal oxide is preferred
One or more in vanadate, metavanadate, vanadic anhydride, basic carbonate ketone and potassium antimony tartrate；The inclined vanadium
Hydrochlorate includes but is not limited to sodium metavanadate and potassium metavanadate；The vanadate includes but is not limited to sodium vanadate and potassium vanadate.
The mass ratio of the metal oxide and single oily imidazoline is preferably 1：(0.05~2)；More preferably 1：(0.1~
1.5)；Most preferably 1：(0.5~1.3).
The present invention coordinates the synergy of main absorbent components and activator to be prepared into by above-mentioned desorption promoter and corrosion inhibiter
The decarburization adsorbent anti-corrosion effects arrived are good.
Flue gas decarbonization composition provided by the invention preferably also includes the antioxidant of 0.05~5 parts by weight；Preferably 0.5
The antioxidant of~4 parts by weight；The more preferably antioxidant of 0.5~3 parts by weight.
According to the present invention, the antioxidant is preferably selected from dodecyl hydroquinones, hydroquinones, anthraquinone, the sulphur of anthraquinone two
One or more in acid and anthraquinone disulphonate.
Source of the invention for the antioxidant is commercially available without limiting.
Flue gas decarbonization composition described in the one of embodiment of the present invention includes：
Flue gas decarbonization composition described in the one of embodiment of the present invention includes：
Flue gas decarbonization composition described in the one of embodiment of the present invention includes：
Flue gas decarbonization composition described in the one of embodiment of the present invention includes：
Flue gas decarbonization composition described in the one of embodiment of the present invention includes：
The invention provides a kind of flue gas decarbonization composition, including：The main parts by weight of absorbent 5~50；Activator 0.1~
20 parts by weight；The parts by weight of desorption promoter 0.1~5；The parts by weight of water 25~95；The main absorbent is diazabicyclooctane；Institute
State one or more of the activator in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine.This hair
The flue gas decarbonization composition of bright offer uses diazabicyclooctane as main absorbent, with diethylenetriamine, TEPA or
Triethylene diamine is activator, and combines the components such as desorption promoter, in combination with specific proportioning carbon dioxide removal effect
It is good, CO2Absorptive capacity is high, infiltration rate is fast, carbon-drop rate is high, desorption energy consumption is low.
The invention provides a kind of preparation method of the flue gas decarbonization composition as described in above-mentioned technical scheme, including：
Main absorbent, activator, desorption promoter and water are mixed, obtain flue gas decarbonization composition.
Main absorbent, activator, desorption promoter are added to by the preparation method of flue gas decarbonization composition provided by the invention
Flue gas decarbonization composition is can obtain in water.
When also including corrosion inhibiter, as main absorbent, activator, desorption promoter, corrosion inhibiter and water are mixed, obtained
Flue gas decarbonization composition.As main absorbent, activator, desorption promoter, corrosion inhibiter are added to the water and can obtain flue gas and take off
Carbon composition.
When also including antioxidant, as main absorbent, activator, desorption promoter, antioxidant, corrosion inhibiter and water are mixed
Close, obtain flue gas decarbonization composition.As main absorbent, activator, desorption promoter, antioxidant, corrosion inhibiter are added to the water
It can obtain flue gas decarbonization composition.
The present invention for above-mentioned composition concrete composition and match it is above-mentioned be clearly described, it is no longer superfluous herein
State.The present invention for the hybrid mode without limit, it is well known to those skilled in the art.The temperature wherein mixed
Preferably 20 DEG C~50 DEG C.
It is mixed that decarburizer provided by the invention can remove and reclaim lime burning kiln flue gas, blast furnace gas, natural gas etc.
Wherein carbon dioxide is closed, removing, should with reclaiming the carbon dioxide in the gases such as boiler of power plant flue gas, carbonic acid industrial tail gas
Decarbonizing solution has the advantages such as absorptive capacity is big, degree of purification is high, infiltration rate is fast, desorption efficiency is big, regeneration energy consumption is low.
The invention provides a kind of method of flue gas decarbonization, including：
Mixed gas containing carbon dioxide is contacted with the decarburization composition described in above-mentioned technical proposal.
The method of flue gas decarbonization provided by the invention is to connect the mixed gas containing carbon dioxide and decarburization composition
Touch.
According to the present invention, it is not particularly limited for the contact conditions, as long as decarburization composition can fill with mixed gas
Tap is touched.
The present invention is for mixed gas without restriction, including but not limited to CO2、O2、H2O、N2, CO, micro carbide
And nitrogen oxides.
The condition of the contact preferably includes：Temperature is 30~80 DEG C, and liquid-gas ratio is 0.05~3.0kg/Nm3；More preferably
It it is 40~60 DEG C for temperature, liquid-gas ratio is 0.08~2.0kg/Nm3；Most preferably 40~60 DEG C, liquid-gas ratio be 0.08~
1.5kg/Nm3。
The mode of the contact is preferably counter current contacting, as contacts flue gas decarbonization composition with flue gas adverse current, so as to
Greatly improve contact effect.
The present invention carbon dioxide removal efficiency high, effect by the way of said temperature and liquid-gas ratio and counter current contacting
It is good.
When the acidity of rich solution after the decarburizer makes absorption because of absorbing carbon dioxide reaches certain Acidity Range,
Wherein rich solution pH is 7.5~9.5, and preferably rich solution pH is 7.5~8.0, the decarburizer can be desorbed, make absorption
Carbon dioxide is separated from the decarburizer, so that the decarburizer regenerates.The desorption can be by using
Decarburizer heated to realize, wherein, the temperature of the heating can be 85~130 DEG C, preferably 90~115 DEG C.Add
The time of heat can be 15~180 minutes, preferably 30~60 minutes.
In the industrial production, flue gas decarbonization and desorption process can be carried out in absorption tower and desorber respectively, the suction
The species and application method of receipts tower and desorber are known to those skilled in the art, and here is omitted.
Below, the preferable commercial Application mode of the flue gas decarbonization agent of the present invention is provided：
Flue gas decarbonization：The flue gas decarbonization agent of the present invention is preheating to 40~60 DEG C by heat exchanger, sprayed from absorption tower top
Leaching, flue gas are passed through from absorption tower bottom, and it is 0.08~1.5kg/m to control liquid-gas ratio3, flue gas decarbonization agent with it is carbonated
Gas inversely contacts, and the gas being cleaned is discharged into air through tower top, absorbs CO2Decarburizer be referred to as rich solution, entered by bottom of towe
Enter rich solution groove.
Desorption：The rich solution obtained from the rich solution groove on absorption tower is preheating to 70~90 DEG C by heat exchanger, from desorber
Top sprays, and has at desorber bottom and uses steam-heated heat-exchanger rig, absorbs the rich solution of carbon dioxide in desorber
Part is desorbed, and 95~120 DEG C are heated in heat-exchanger rig and is desorbed again, and the liquid after desorption flows into desorption apparatus bottom,
The desorption gas of high temperature is discharged with vapor from the top of desorber, subsequently into condenser and vapour liquid separator, in stripping gas
It is cooled to return to desorber, obtained purer high temperature CO with the condensed water separated2Gas, it is sent into next procedure.It is high
The desorption gas of temperature imparts heat to the rich solution from top spray, 70~90 DEG C of rich solutions can be heated and be easy to desorb.
It is referred to as lean solution after rich solution desorption, is discharged into lean liquid tank from the bottom of desorber, and recycle as flue gas decarbonization agent.
The anti-oxidant experiment of flue gas decarbonization agent：200ml flue gas decarbonization agent solution, oxygen partial pressure are that 0.6MPa high pressure is anti-
Answer in kettle, reaction temperature is 130 DEG C, reaction time 4h, before and after GC-MS and ICP Instrument measuring flue gas decarbonizations agent reaction
Mass concentration, and calculate the degradation rate of flue gas decarbonization agent, experimental result is shown in Table 1.
Flue gas decarbonization agent corrosion inhibition test：400ml flue gas decarbonization agent solution, 80 DEG C of solution temperature, using A3 charcoal steel standards
Test piece carries out total immersion test, and the reaction time is 336h (14d), the front and rear weight of measure A3 test piece reactions, calculates different flue gases and takes off
The corrosion rate of carbon agent solution, experimental result are shown in Table 1.
In order to further illustrate the present invention, flue gas decarbonization composition provided by the invention is carried out with reference to embodiments
It is described in detail.
Embodiment 1
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
By 120 grams of diazabicyclooctane, 30 grams of TEPAs, 10 grams of citric acids, 5 grams of dodecyl hydroquinones,
3 grams of potassium antimony tartrates, 2 grams of oily imidazolines of list are added in 500 milliliters of water, are stirred, and quantitative to 1000 with distilled water
Gram, so as to obtain flue gas decarbonization agent.
(3) flue gas decarbonization
The described decarburizer prepared in 1000 grams of (2) is heated to 50 DEG C, with minipump by decarburizer from filler
The upper end of tower is sent into the packed tower equipped with glass web ring, and the simulated flue gas described in (1) is passed through into cigarette from the bottom of packed tower
In tracheae, gas inversely contacts with the liquid sprayed from upper end, liquid-gas ratio 0.25kg/Nm3, cleaned gas is from absorption
Tower top is discharged, and absorbs SO2Rich solution enter rich solution groove.With enhanced flue gas analyzer (Germany, model：Vario Plus)
The gas that detection is discharged by tower top forms, and (is inhaled using the amount for collecting the carbon dioxide in CO2 gas methods measure rich solution
Collecting amount), with equation below calculated uptake,
The amount of carbon dioxide before amount-absorption of carbon dioxide after absorptive capacity=absorption
It the results are shown in Table in 1.
(4) desorb
After the completion of flue gas decarbonization, the decarburization rich solution that step 3 obtains is put into three-necked flask, a bite plugs in thermometer, and a bite is inserted
Fume pipe leads to the bottom of decarburization rich solution, and nitrogen is passed through into fume pipe, and the speed being passed through is 2 × 10-4Nm3/ min, is passed through
Time is 80 minutes, while carries out being heated to 100 DEG C, the carbon dioxide of absorption is obtained lean solution, using using collection
CO2The amount of remaining carbon dioxide, desorption quantity and desorption efficiency are calculated with equation below in gas methods measure lean solution,
Desorb the amount of the carbon dioxide after amount-desorption of the carbon dioxide before capacity=desorption
Amount × 100% of carbon dioxide before desorption efficiency=desorption quantity/desorption
Then with obtained lean solution repeat step (3) and (4), taking off when measure carries out secondary decarburization using the decarburizer
Gas composition, absorptive capacity after carbon, and secondary desorption quantity and secondary desorption efficiency are calculated, wherein, secondary desorption efficiency is equal to secondary solution
Pipette divided by second of uptake, the rest may be inferred.The results are shown in Table 1.
Embodiment 2
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
By 120 grams of diazabicyclooctane, 30 grams of diethylenetriamines, 10 grams of lactic acid, 5 grams of anthraquinone disulphonates, 3 gram five
V 2 O, 2 grams of oily imidazolines of list are added in 500 milliliters of water, are stirred, and quantitative to 1000 grams with distilled water, so as to
Obtain flue gas decarbonization agent.
Step (3) and (4) carry out flue gas decarbonization, the desorption of decarburizer and measure in the way of similarly to Example 1
Absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Embodiment 3
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
By 120 grams of diazabicyclooctane, 15 grams of triethylene diamines, 15 grams of TEPAs, 10 grams of lactic acid, 5 grams to benzene
Diphenol, 3 grams of potassium antimony tartrates, 2 grams of oily imidazolines of list are added in 500 milliliters of water, are stirred, and quantitatively arrived with distilled water
1000 grams, so as to obtain flue gas decarbonization agent.
Step (3) and (4) carry out flue gas decarbonization, the desorption of decarburizer and measure in the way of similarly to Example 1
Absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Embodiment 4
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide breathes out nitrogen oxides.
(2) flue gas decarbonization agent is prepared
By 220 grams of diazabicyclooctane, 15 grams of diethylenetriamines, 15 grams of TEPAs, 10 grams of sodium acetates, 5 gram ten
Dialkyl group hydroquinones, 3 grams of potassium antimony tartrates, 2 grams of oily imidazolines of list are added in 500 milliliters of water, are stirred, and with steam
Distilled water is quantitative to 1000 grams, so as to obtain flue gas decarbonization agent.
Step (3) and (4) carry out flue gas decarbonization, the desorption of decarburizer and measure in the way of similarly to Example 1
Absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Embodiment 5
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
220 grams of diazabicyclooctane, 15 grams of diethylenetriamines, 15 grams of TEPAs, 10 grams of sodium acetates are added to
In 500 milliliters of water, stir, and it is quantitative to 1000 grams with distilled water, so as to obtain flue gas decarbonization agent.
Step (3) and (4) carry out flue gas decarbonization, the desorption of decarburizer and measure in the way of similarly to Example 1
Absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Comparative example 1
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
By 250 grams of diazabicyclooctane, 5 grams of dodecyl hydroquinones, 3 grams of potassium antimony tartrates, 2 grams of oily imidazoles of list
Quinoline is added in 500 milliliters of water, is stirred, and quantitative to 1000 grams with distilled water, so as to obtain flue gas decarbonization agent.
Step (3) and (4) carry out flue gas decarbonization, the desorption of decarburizer and measure in the way of similarly to Example 1
Absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Comparative example 2
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
300 grams of N methyldiethanol amines, 1 gram of dimethylethanolamine, 5 grams of methylethanolamines, 10 gram of two piperazine are added
Into 500 milliliters of water, stir, and it is quantitative to 1000 grams with distilled water, so as to obtain flue gas decarbonization agent.
Step (3) and (4) carry out flue gas decarbonization, the desorption of decarburizer and measure in the way of similarly to Example 1
Absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Comparative example 3
The present embodiment is used to illustrate the flue gas decarbonization agent provided by the invention.
(1) composition of simulated flue gas is (volume)：CO2：20.25%；O2：8.27%；H2O：10.12%； N2：59.01、
CO：2.35%；Trace sulfide and nitrogen oxides.
(2) flue gas decarbonization agent is prepared
By 250 grams of AEEAs, 100 grams of -2 methyl isophthalic acids of 2- amino-propyl alcohol, 50 grams of dimethylethanolamines, 50 grams of second
Hydramine, 50 grams of piperazines are added in 500 milliliters of water, are stirred, and quantitative to 1000 grams with distilled water, so as to obtain flue gas
Decarburizer.
Step (3) and (4) carry out flue gas decarbonization, decarburizer in the way of similarly to Example 1
Desorption and measure absorptive capacity, desorption quantity and desorption efficiency, the results are shown in Table 1.
Table 1
From the results shown in Table 1, decarburizer provided by the invention can be used for removing and the dioxy in recovered flue gas
Change carbon, the desulfuration solution has the advantages such as degree of purification is high, absorptive capacity is big, infiltration rate is fast, desorption efficiency is big, regeneration energy consumption is low.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
- A kind of 1. flue gas decarbonization composition, it is characterised in that including：The main absorbent is diazabicyclooctane；One or more of the activator in diethylenetriamine, TEPA, triethylene tetramine and triethylene diamine.
- 2. composition according to claim 1, it is characterised in that the desorption promoter is selected from citric acid, sodium lactate, acetic acid One or more in sodium, sodium citrate and lactic acid.
- 3. composition according to claim 1, it is characterised in that the flue gas decarbonization composition also includes corrosion inhibiter；Institute It is 0.05~2 parts by weight to state corrosion inhibiter.
- 4. composition according to claim 3, it is characterised in that the corrosion inhibiter is by metal oxide and single oily imidazoline Composition；The metal oxide is in vanadate, metavanadate, vanadic anhydride, basic carbonate ketone and potassium antimony tartrate It is one or more of；The mass ratio of the metal oxide and single oily imidazoline is 1：(0.05~2).
- 5. composition according to claim 3, it is characterised in that the flue gas decarbonization composition also includes antioxidant；Institute State one kind in dodecyl hydroquinones, hydroquinones, anthraquinone, anthraquinone disulfonic acid and anthraquinone disulphonate of antioxidant or It is several；The antioxidant is 0.05~5 parts by weight.
- 6. composition according to claim 1, it is characterised in that the flue gas decarbonization composition includes：
- A kind of 7. preparation method of flue gas decarbonization composition as claimed in claim 1, it is characterised in that including：Main absorbent, activator, desorption promoter and water are mixed, obtain flue gas decarbonization composition.
- A kind of 8. method of flue gas decarbonization, it is characterised in that including：Mixed gas containing carbon dioxide is contacted with the decarburization composition described in claim 1.
- 9. decarbonization method according to claim 8, it is characterised in that the condition of the contact includes：Temperature is 30~80 DEG C, liquid-gas ratio is 0.05~3.0kg/Nm3。
- 10. decarbonization method according to claim 8, it is characterised in that the mode of the contact is counter current contacting.
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| CN102711957A (en) * | 2010-01-05 | 2012-10-03 | 蒂森克虏伯伍德公司 | CO2is removed from gas with low CO2partial pressure by 2,2'-(ethylene dioxy) di (ethylamine) (EDEA) |
| CN102834161A (en) * | 2010-01-05 | 2012-12-19 | 蒂森克虏伯伍德公司 | Removal of CO2 from gases having low CO2 partial pressures, using 1,2-diaminopropane |
| CN103143236A (en) * | 2013-03-06 | 2013-06-12 | 胜利油田胜利勘察设计研究院有限公司 | Decarburization solution for recovering and removing carbon dioxide gas from carbon dioxide flooding produced gas of oilfield |
| CN103801182A (en) * | 2012-11-02 | 2014-05-21 | 中国石油化工集团公司 | Renewable flue gas desulfuration agent and applications thereof |
| CN105413397A (en) * | 2015-10-21 | 2016-03-23 | 中石化节能环保工程科技有限公司 | Compound absorbent for removing CO2 from tail gas |
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| CN102711957A (en) * | 2010-01-05 | 2012-10-03 | 蒂森克虏伯伍德公司 | CO2is removed from gas with low CO2partial pressure by 2,2'-(ethylene dioxy) di (ethylamine) (EDEA) |
| CN102834161A (en) * | 2010-01-05 | 2012-12-19 | 蒂森克虏伯伍德公司 | Removal of CO2 from gases having low CO2 partial pressures, using 1,2-diaminopropane |
| CN103801182A (en) * | 2012-11-02 | 2014-05-21 | 中国石油化工集团公司 | Renewable flue gas desulfuration agent and applications thereof |
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