CN103239970A - Composite absorber for CO2 capture in catalytic cracking regeneration flue gas - Google Patents
Composite absorber for CO2 capture in catalytic cracking regeneration flue gas Download PDFInfo
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- CN103239970A CN103239970A CN2012100341346A CN201210034134A CN103239970A CN 103239970 A CN103239970 A CN 103239970A CN 2012100341346 A CN2012100341346 A CN 2012100341346A CN 201210034134 A CN201210034134 A CN 201210034134A CN 103239970 A CN103239970 A CN 103239970A
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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]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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Abstract
The invention discloses a composite absorber for CO2 capture in catalytic cracking regeneration flue gas, which aims to solve the problems of low absorption rate, small capacity, high regeneration energy consumption, high corrosivity for equipment and the like in the absorber in the prior art. The composite absorber disclosed by the invention comprises (a) 10-70 wt% of sterically hindered amine, (b) 1-25 wt% of active amine, (c) 0.05-5 wt% of corrosion inhibitor, (d) 0.05-5 wt% of antioxidant and (e) 10-85 wt% of solvent. The composite absorber disclosed by the invention can be used for capturing CO2 in FCC (fluid catalytic cracking) regeneration flue gas, and can also be used for capturing CO2 in discharge flue gas of finery plant boiler flue gas, power plant flue gas and the like.
Description
Technical field
The invention belongs to the CO based on amine (ammonia) compounds
2The composite absorber that captures, particularly a kind of with the sterically hindered amines be key component be used for regeneration fume from catalytic cracking CO
2The composite absorber that captures.
Background technology
In recent years both at home and abroad to CO
2The research of absorption techniques and respective absorption agent is more and more, abroad the CO of each major company's exploitation
2Trapping technique mainly contains MEA (MEA) method, DEA (diethanol amine) method and K
2CO
3Method etc.The common feature of this several method is that technology is comparatively ripe, but MEA process and K
2CO
3The energy consumption height of method, corrosivity is strong, and loss is big.The reactivity of DEA process is poor, and absorption rate is slow.Ammoniacal liquor absorbent under test exists ammonia easily to reveal at present, ammonia and CO
2Separation and absorption product pipeline produce is stopped up, and ammonia is to problems such as environment pollute.Polyamines class absorbent is to CO
2Absorption rate fast, absorptive capacity is big, the desorb energy consumption is low, but easily chemistry degraded of absorbent itself, easy oxidation deterioration, and cost is high relatively.Chinese patent CN1091332A discloses a kind of compound amine absorbent that removes carbon dioxide and sulfide in the gas, the host of this absorbent is N methyldiethanol amine (MDEA), content is 20～60%, remaining amine is piperazine, and diethanol amine and N-methyl-ethanolamine etc., this compound amine absorbent are applicable to removing of carbon dioxide and sulfide in the mists such as syngas for synthetic ammonia, coal gas, natural gas, energy consumption is relatively low, the degree of purification height, but absorptivity is low, weak effect under the normal pressure.Chinese patent CN1354036A discloses a kind of compound amine solvent that reclaims low fractional pressure carbon dioxide, and it is based on monoethanolamine (MEA) aqueous solution, has preferably added reactive amines, antioxidant and corrosion inhibiter etc., has formed to be applicable to the low dividing potential drop CO of capture
2Compound amine solvent, form single relatively systems but be mainly used in synthetic ammonia tailgas, natural gas etc., be difficult to be applicable to contain NO
X, SO
X, dust etc. forms CO in the regeneration fume from catalytic cracking complicated, that impurity is many, temperature is high
2Absorption reduce discharging.US Patent No. P7759285 discloses a kind of CO
2Gas purifying agent, described CO
2Composite absorber is made up of serine, serine salt or serine ester etc., and the absorption rate of this type of absorbent is very fast, and absorptive capacity is bigger, but the cost height of absorbent has certain corrosivity to equipment.Publication number is that the Chinese patent of CN1660469A and CN1660470A all is to adopt the compound of sterically hindered amines and MEA as absorbent, and both mol ratios are 1: 1.2～6.5; The antioxidant that adds is sodium potassium tartrate tetrahydrate, potassium antimony tartrate, sodium phosphate, sodium molybdate etc.; The corrosion inhibiter that adds is sodium nitrate, natrium nitrosum, sodium phosphate, sodium sulfite, sodium vanadate, potassium vanadate, potassium chromate, sodium molybdate, sodium tungstate etc.
Present both at home and abroad have living space bulky amine, polyethylene polyamine, ammoniacal liquor and active MDEA etc. of the more absorbent of research, absorbent of the present invention then is host with the sterically hindered amines, wherein add activator secondary amine or primary amine again, to improve its absorptive capacity, accelerate absorption rate.Consider and contain a certain amount of oxygen and a spot of SO in the FCC flue gas
2With SO
3Deng the severe corrosive sour gas, therefore need in absorbent, to add a certain amount of antioxidant described in Chinese patent CN1660469A and the CN1660470A and corrosion inhibiter etc. of being different from.
Summary of the invention
It is slow to The present invention be directed to existing absorbent absorption rate, or regeneration energy consumption height, or to problems such as equipment corrosion are strong, proposes a kind of new CO
2Capture absorbent, this absorbent has good absorption rate and absorptive capacity, little to the corrosivity of equipment, and the regeneration energy consumption is low.
The invention provides a kind of composite absorber, it is composed of the following components:
(a) 10～70 weight % sterically hindered amines;
(b) 1～25 weight % reactive amines;
(c) corrosion inhibiter of 0.05～5 weight %;
(d) antioxidant of 0.05～5 weight %;
(e) 10～85 weight % solvents.
Above-mentioned percentage composition is in the composite absorber gross weight, and each composition weight percentage composition is 100 weight % in the composite absorber.
Wherein: component (a) is for having the aminated compounds (abbreviation sterically hindered amines) of space steric effect, and it refers to contain in the molecule at least one secondary amine, and this secondary amine or link to each other with secondary carbon, or the aminated compounds that links to each other with tertiary carbon atom; Or contain a primary amine group in the molecule, and it is directly connected to the aminated compounds on the tertiary carbon atom.Because this compounds spatially has certain steric effect, therefore it is referred to as " sterically hindered amines ".The fast characteristics of the existing primary amine absorption rate of sterically hindered amines possess the easy desorb advantage of tertiary amine simultaneously.Component (a) recommends to use more than one in piperidines (hexahydropyridine), piperazine (piperazidine), AMP (2-amino-2-methyl-1-propanol), 3-amino-3-methyl isophthalic acid-butanols, 3-amino-3-methyl-2-butanols, 2-piperidine carbinols and the 2-piperidines ethanol etc., when selection was two or more, each material can mix by arbitrary proportion.The preferred content of component (a) in composite absorber is 30～50 weight %, and in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
Component (b) is reactive amines, can obviously improve the absorption rate of component (a), be secondary amine or primary amine, primary amine is as serine, serine salt and MEA (MEA) etc., secondary amine such as MAE (2-methylaminoethanol), MMEA (N-methyl-ethanolamine), piperazine, 2-methylamino piperazine and DEA (diethanol amine) etc.Its preferred content in absorbent is 5～15 weight %, and in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
The water-soluble imidazoline derivative corrosion inhibiter of component (c) is alkyl quaternary amine salt type imidazolidine derivatives, in this component, the two keys that contain in its imidazoline and the derivant structure thereof can form π-d key with metal, hetero atom N can form coordinate bond with Fe, thereby strengthen the adsorption capacity of molecule, therefore firm film be can form in the metal surface, corrosive medium and Metal Contact stoped.And the chemical valence of the N atom on the imidazoline ring becomes after the quaternary ammonium salt of tetravalence form, and quaternary ammonium cation is adsorbed by electronegative metal surface, and discharge has a significant impact to cation, thereby suppresses anode reaction effectively; In addition, the anion on the quaternary ammonium salt also has very big influence to the Electrostatic Absorption of cation corrosion inhibiter, the general structure of component (c) as the formula (1):
R in the formula (1)
1And R
2Be respectively C
12～C
18Alkyl, the preferred content of component (c) in absorbent is 0.1～1.0 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
Component (d) is water-soluble antioxidant, recommends to use sodium sulfite (Na
2SO
3), sodium pyrosulfite (Na
2S
2O
5), sodium hydrogensulfite (Na
2HSO
3) or sodium thiosulfate (Na
2S
2O
3) etc., its preferred content in composite absorber is 0.1～1.0 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
Component (e) is deionized water, and its addition is preferably 20～85 weight %, and in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
The preparation method of composite absorber of the present invention is: add component (a) and (b), (c), (d) and (e) successively in synthesising container, continue to stir 30～60min and namely make composite absorber of the present invention under 30～70 ℃ temperature.
Composite absorber of the present invention can be applicable to the FCC regenerated gas CO
2Capture, also can be applicable to the CO in the flue gas that discharge such as refinery's boiler smoke, power-plant flue gas
2Capture.
Absorbent application technology condition of the present invention is generally: absorb temperature: 30～70 ℃; Desorption temperature: 80～120 ℃; Unstripped gas CO
2Content: 6～30%; Operating pressure: 0.01～0.3MPa.
The present invention compared with prior art, absorbent provided by the present invention is owing to adopt sterically hindered amines and reactive amines compound, its absorption rate is fast, absorptive capacity is big, the desorb energy consumption is low, as CO
2CO in the purified gas after being absorbed
2Content only is 0.01～1%; CO in the regeneration gas
2Content is 96.0～99.5%; Absorption liquid balance uptake is more than or equal to 4.6%; CO
2The balance desorption quantity is more than or equal to 3.2%, and desorption efficiency is more than or equal to 75%.In addition the corrosion inhibiter in the composite absorber provided by the present invention can effectively slow down absorb with regenerative process in absorbent to equipment and Corrosion of Pipeline, the antioxidant that adds can stop the oxidation deterioration of absorbent after use under long-time, high temperature and oxygen and the existence of other gas itself.
The specific embodiment
Describe the present invention in detail with specific embodiment below, but these embodiment do not limit the scope of the invention.
Embodiment 1
Get 30Kg AMP (2-amino-2-methyl-1-propanol), 15Kg diethanol amine successively, 0.2Kg lauryl imidazoline quaternary amine type corrosion inhibiter, 0.2Kg sodium thiosulfate (Na
2S
2O
3), join in the 34.6Kg deionized water, be heated to 30～60 ℃, fully stir and make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 50 ℃ of temperature, 100 ℃ of desorption temperatures, unstripped gas CO
2Content 10%, operation are pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.7%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 3.66%.
Embodiment 2
Get 20Kg 2-piperidines ethanol, 20Kg piperazine successively, 0.2Kg lauryl imidazoline quaternary amine type corrosion inhibiter, 0.2Kg sodium thiosulfate (Na
2S
2O
3), join in the 49.6Kg deionized water, be heated to 30～60 ℃, fully stir and make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 60 ℃ of temperature, 95 ℃ of desorption temperatures, unstripped gas CO
2Content 20%, operation are pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～1%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 3.25%.
Embodiment 3
Get 40Kg AMP (2-amino-2-methyl-1-propanol), 6Kg piperazine successively, 0.2Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.2Kg sodium pyrosulfite (Na
2S
2O
5), join in the 73.6Kg deionized water, be heated to 30～60 ℃, fully stir and make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 60 ℃ of temperature, 100 ℃ of desorption temperatures, unstripped gas CO
2Content 15%, operation are pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.6%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 3.32%.
Embodiment 4
Get 50Kg 2-piperidines ethanol, 10Kg diethanol amine successively, 0.2Kg lauryl imidazoline quaternary amine type corrosion inhibiter, 0.2Kg sodium pyrosulfite (Na
2S
2O
5), join in the 39.6Kg deionized water, be heated to 30～60 ℃, fully stir and make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 50 ℃ of temperature, 105 ℃ of desorption temperatures, unstripped gas CO
2Content 20%, operation are pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.5%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 3.36%.
Embodiment 5
Get 40Kg AMP (2-amino-2-methyl-1-propanol), 5Kg piperazine successively, 0.2Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.2Kg sodium pyrosulfite (Na
2S
2O
5), join in the 74.6Kg deionized water, be heated to 30～60 ℃, fully stir and make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 60 ℃ of temperature, 100 ℃ of desorption temperatures, unstripped gas CO
2Contain 30%, operation is pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.6%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 3.60%.
Embodiment 6
Get 25Kg 2-piperidines ethanol, 5Kg piperazine successively, 0.2Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.2Kg sodium pyrosulfite (Na
2S
2O
5), join in the 74.6Kg deionized water, be heated to 30～60 ℃, fully stir and make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 60 ℃ of temperature, 100 ℃ of desorption temperatures, unstripped gas CO
2Contain 30%, operation is pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.6%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 3.50%.
Embodiment 7
Get 30Kg AMP, 20Kg2-piperidines ethanol, 5Kg diethanol amine successively, 0.5Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.5Kg sodium hydrogensulfite (Na
2HSO
3), join in the 44.0Kg deionized water, be heated to 30～60 ℃, fully stir 30～45min, make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 70 ℃ of temperature, 105 ℃ of desorption temperatures, unstripped gas CO
2Contain 15%, operation is pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.1～0.6%; CO in the regeneration gas
2Content is 96～99.5%; Absorption liquid CO
2The balance desorption quantity is 4.25%.
Embodiment 8
Get 30Kg AMP, 10Kg piperazine, 10Kg 2-methylaminoethanol successively, 0.5Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.5Kg sodium hydrogensulfite (Na
2HSO
3), join in the 49.0Kg deionized water, be heated to 30～60 ℃, fully stir 30～45min, make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 30 ℃ of temperature, 102 ℃ of desorption temperatures, unstripped gas CO
2Contain 20%, operation is pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.3%; CO in the regeneration gas
2Content is 98～99.5%; Absorption liquid CO
2The balance desorption quantity is 4.76%.
Embodiment 9
Get 30Kg AMP, 10Kg piperazine, 10Kg 2-methylaminoethanol successively, 0.5Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.5Kg sodium hydrogensulfite (Na
2HSO
3), join in the 49.0Kg deionized water, be heated to 30～60 ℃, fully stir 30～45min, make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 60 ℃ of temperature, 105 ℃ of desorption temperatures, unstripped gas CO
2Contain 10%, operation is pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.3%; CO in the regeneration gas
2Content is 99.0～99.5%; Absorption liquid CO
2The balance desorption quantity is 5.06%.
Embodiment 10
Get 30Kg piperidines, 10Kg piperazine, 10Kg 2-methylaminoethanol successively, 0.5Kg octadecyl imidazoline quaternary amine type corrosion inhibiter, 0.5Kg sodium thiosulfate (Na
2S
2O
3), join in the 49.0Kg deionized water, be heated to 30～60 ℃, fully stir 30～45min, make this absorbent.Use this absorbent to the CO in the flue gas
2Capture, absorbing 30 ℃ of temperature, 105 ℃ of desorption temperatures, unstripped gas CO
2Contain 30%, operation is pressed under the 0.03MPa condition, CO
2Be absorbed the CO in the after-purification gas
2Content is 0.01～0.3%; CO in the regeneration gas
2Content is 99.0～99.5%; Absorption liquid CO
2The balance desorption quantity is 4.72%.
Claims (15)
1. one kind is used for regeneration fume from catalytic cracking CO
2The composite absorber that captures is characterized in that composed of the following components:
(a) 10～70 weight % sterically hindered amines;
(b) 1～25 weight % reactive amines;
(c) corrosion inhibiter of 0.05～5 weight %;
(d) antioxidant of 0.05～5 weight %;
(e) 10～85 weight % solvents;
Above-mentioned percentage composition is in the composite absorber gross weight, and each composition weight percentage composition is 100 weight % in the composite absorber;
Wherein: component (a) is for containing at least one secondary amine, and this secondary amine or link to each other with secondary carbon, or the aminated compounds that links to each other with tertiary carbon atom, perhaps contain a primary amine group in the molecule, and it is directly connected to the aminated compounds on the tertiary carbon atom; Component (b) is secondary amine or primary amine; The general structure of component (c) is as the formula (1):
R in the formula (1)
1And R
2Be respectively C
12～C
18Alkyl.
2. composite absorber according to claim 1, it is characterized in that: described component (a) is more than one in piperidines, piperazine, AMP, 3-amino-3-methyl isophthalic acid-butanols, 3-amino-3-methyl-2-butanols, 2-piperidine carbinols and the 2-piperidines ethanol, when selection was two or more, each material can mix by arbitrary proportion.
3. composite absorber according to claim 1 and 2, it is characterized in that: the content of described component (a) in composite absorber is 30～50 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
4. composite absorber according to claim 1 and 2 is characterized in that: described component (b) is serine, serine salt, MEA, 2-methylaminoethanol, N-methyl-ethanolamine, piperazine, 2-methylamino piperazine or diethanol amine.
5. composite absorber according to claim 1 and 2, it is characterized in that: the content of described component (b) in absorbent is 5～15 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
6. composite absorber according to claim 1 and 2, it is characterized in that: described component (b) is serine, serine salt, MEA, 2-methylaminoethanol, N-methyl-ethanolamine, piperazine, 2-methylamino piperazine or diethanol amine, the content of described component (b) in absorbent is 5～15 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
7. composite absorber according to claim 1 and 2, it is characterized in that: the content of described component (c) in absorbent is 0.1～1.0 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
8. composite absorber according to claim 1 and 2, it is characterized in that: described component (b) is serine, serine salt, MEA, 2-methylaminoethanol, N-methyl-ethanolamine, piperazine, 2-methylamino piperazine or diethanol amine, the content of described component (b) in absorbent is 5～15 weight %, the content of described component (c) in absorbent is 0.1～1.0 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
9. composite absorber according to claim 1 and 2 is characterized in that: described component (d) is sodium sulfite, sodium pyrosulfite, sodium hydrogensulfite or sodium thiosulfate.
10. composite absorber according to claim 1 and 2, it is characterized in that: the content of described component (d) in composite absorber is 0.1～1.0 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
11. composite absorber according to claim 1 and 2, it is characterized in that: described component (d) is sodium sulfite, sodium pyrosulfite, sodium hydrogensulfite or sodium thiosulfate, the content of component (d) in composite absorber is 0.1～1.0 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
12. composite absorber according to claim 1 and 2 is characterized in that: described component (e) is deionized water.
13. composite absorber according to claim 1 and 2 is characterized in that: the content of described component (e) is 20～85 weight %, and in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
14. composite absorber according to claim 1 and 2, it is characterized in that: described component (e) is deionized water, the content of component (e) is 20～85 weight %, and in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
15. composite absorber according to claim 1 and 2, it is characterized in that: the content of described component (a) in composite absorber is 30～50 weight %, the content of component (b) in absorbent is 5～15 weight %, the content of component (c) in absorbent is 0.1～1.0 weight %, the content of component (d) in composite absorber is 0.1～1.0 weight %, the content of component (e) is 20～85 weight %, in the composite absorber gross weight, each composition weight percentage composition is 100 weight % in the composite absorber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210034134.6A CN103239970B (en) | 2012-02-10 | 2012-02-10 | A kind of for CO in regeneration fume from catalytic cracking2The composite absorber of trapping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210034134.6A CN103239970B (en) | 2012-02-10 | 2012-02-10 | A kind of for CO in regeneration fume from catalytic cracking2The composite absorber of trapping |
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| Publication Number | Publication Date |
|---|---|
| CN103239970A true CN103239970A (en) | 2013-08-14 |
| CN103239970B CN103239970B (en) | 2016-06-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733663A (en) * | 2014-12-06 | 2016-07-06 | 中国石油化工股份有限公司 | Absorption stable process and system |
| CN111603893A (en) * | 2020-05-29 | 2020-09-01 | 中国华电科工集团有限公司 | CO (carbon monoxide)2Composite absorption liquid and preparation method and application thereof |
| CN112143536A (en) * | 2019-06-27 | 2020-12-29 | 中石化南京化工研究院有限公司 | Absorption liquid for corrosion prevention of decarburization system in natural gas |
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|---|---|---|---|---|
| CN1660469A (en) * | 2004-12-17 | 2005-08-31 | 南化集团研究院 | Method for preventing corrosion of equipment for recovering carbon dioxide from ethanolamine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105733663A (en) * | 2014-12-06 | 2016-07-06 | 中国石油化工股份有限公司 | Absorption stable process and system |
| CN105733663B (en) * | 2014-12-06 | 2017-12-22 | 中国石油化工股份有限公司 | A kind of absorption stabilizing process and system |
| CN112143536A (en) * | 2019-06-27 | 2020-12-29 | 中石化南京化工研究院有限公司 | Absorption liquid for corrosion prevention of decarburization system in natural gas |
| CN111603893A (en) * | 2020-05-29 | 2020-09-01 | 中国华电科工集团有限公司 | CO (carbon monoxide)2Composite absorption liquid and preparation method and application thereof |
| CN111603893B (en) * | 2020-05-29 | 2022-05-17 | 中国华电科工集团有限公司 | CO (carbon monoxide)2Composite absorption liquid and preparation method and application thereof |
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