Classifications

• • 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
• • 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
• • 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
  • B01D53/34—Chemical or biological purification of waste gases
  • B01D53/46—Removing components of defined structure
  • B01D53/62—Carbon oxides
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2257/00—Components to be removed
  • B01D2257/50—Carbon oxides
  • B01D2257/504—Carbon dioxide
• • 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
• • 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

Definitions

• the invention relates to the use of an absorbent for removing C0 2 from industrial gases.
• aqueous solutions of organic bases e.g. Alkanolamines used as an absorbent.
• the absorbent is regenerated by supplying heat, pressure reduction, or stripping by means of suitable auxiliary media. After regeneration, the absorbent is a regenerated solvent for the absorption of
• Absorbents have a very high binding capacity for C0 2 .
• the highest possible absorption capacity should already be available even at low C0 2 partial pressures.
• the absorption capacity of the absorbent is essentially the required Absorptionsffenumlaufmenge and thus determines the size and cost of the equipment required for it. Since the energy needed to heat and cool the absorbent is proportional to the amount of recirculation, the regeneration energy needed to regenerate the solvent is also substantially reduced if it succeeds in reducing the recirculating amount of the absorbent. In addition to the pure absorption capacity, it is crucial for the so-called cyclic absorption capacity of an amine that in the thermal regeneration of the amine as little as possible of the carbon dioxide absorbed in the absorption remains in the solvent. Primary and secondary amines form predominantly carbamates with the included C0 2 , among which also under typical
• an absorbent comprising an aqueous solution with at least two different amines, wherein
• a sterically hindered amine with a proportion of the total amount of amine of less than 50% by weight represents the second amine component in the aqueous solution
• the arbitrary amine is preferably present in a proportion of from 60% by weight to 90% by weight, and more preferably in a proportion of from 70% to 85% by weight, of the total amount of amine in the aqueous solution. Accordingly, the sterically hindered amine is preferred in a proportion of 1 to 40% by weight, and
• the hindered amine is selected from the group comprising (i) Amines having a primary amino group attached to a tertiary carbon atom.
• sterically hindered amine particularly preferred is the sterically hindered amine while 2-amino-2-methyl-1-propanol (AMP).
• AMP 2-amino-2-methyl-1-propanol
• any amine is piperazine or a piperazine derivative.
• the arbitrary amine is an amine having more than one amino group in the molecule, wherein the amine group both in primary position, as well as in secondary position, as well as in mixed primary /
• the arbitrary amine is a diamine of the formula H 2 N-R2-NH 2 , wherein R 2 is a C 2 - to C 6 -alkyl group.
• any amine is selected from a group comprising, ethylenediamine, 1,4-diaminobutane, 1,3-diaminopropane, 1,2-diaminopropane, 2,2-dimethyl-1,3-diaminopropane, hexamethylenediamine, 3-methylaminopropylamine, 3- (dimethylamino) propylamine, 3- (diethylamino) propylamine, 4-dimethylaminobutylamine and 5-dimethylaminopentylamine, 1,1,1 N, N-tetramethylethanediamine, 2,2, N, N-tetramethyl-1,3-propanediamine, N, N'-dimethyl- 1, 3-propanediamine and N, N'Bis (2-
• the arbitrary amine is a diamine of the formula R1-HN-R2-NH 2 , wherein R 1 is a C 1 -C 6 -alkyl and R 2 is a C 2 -C 6 -alkyl group.
• any amine is also a polyalkylenepolyamine selected from a group comprising, diethylenetriamine, triethylenetetramine, Tetraethylenepentamine, tris (3-aminopropyl) amine, tris (2-aminoethyl) amine, bis (3-dimrthylaminopropyl) amine, methyl bis (2-methylaminothyl) amine.
• the arbitrary amine is optionally a primary or a secondary amine, such as
• the arbitrary amine is a tertiary amine of the general formula N (R1) 2 -n (R2) i + n , where R1 is a
• Alkyl group and R2 is a hydroxyalkyl group or a tertiary amine of the general formula (R1) 2.n (R2) n NXN (R1) 2 . m (R 2) m , wherein R 1 is an alkyl group, R 2 is a hydroxyalkyl group, X is an alkylene group which is interrupted one or more times by oxygen and n and m is an integer from 0 to 2, or two different nitrogen atoms bound radicals R1 and R2 together represents an alkylene group.
• the arbitrary amine is selected from a group comprising bis-dimethylaminoethyl ether, tris (2-hydroxyethyl) amine, tris (2-hydroxypropyl) amine, tributanolamine, bis (2-hydroxyethyl) methylamine, 2-diethylaminoethanol, 2-dimethylaminoethanol, 3-dimethylamino-1-propanol, 3-diethylamino-1-propanol, 2-diisopropylaminoethanol, N, N-bis (2-hydroxypropyl) methylamine (methyldiisopropanolamine, MDI PA), ⁇ , ⁇ , ⁇ ', ⁇ '-tetramethylethylenediamine, ⁇ , ⁇ -diethyl-N'.N'-dimethylethylenediamine.N, ⁇ , ⁇ ', ⁇ '-tetraethylethylenediamine, N, N, N', N'-tetramethylpropan
• DABCO Diabis (hydroxyethyl) piperazine.
• DABCO dimethylaminoethyl ether
• the loaded absorbent by heating
• Amine solution prevail, namely at a temperature of 120 ° C and a C0 2 - partial pressure of 0.09 bar, a significantly lower C0 2 residual content, as an aqueous solution containing 50 wt% piperazine (see Table 1).
• the C0 2 uptake for a C0 2 partial pressure of 0.03 bar (existing and comparable measured values for a C0 2 partial pressure of less than 100 mbar) at a temperature of 40 ° C for an aqueous piperazine solution and an aqueous piperazine / AMP solution.
• aqueous piperazine solution composed of 72% piperazine / 28% AMP and once from 28% piperazine / 72% AMP together.
• the percentages refer to the proportion of amines in the total amine content (see Tab. 2).

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Analytical Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Biomedical Technology (AREA)
• Environmental & Geological Engineering (AREA)
• Gas Separation By Absorption (AREA)
• Treating Waste Gases (AREA)

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• 2010
  • 2010-01-05 DE DE102010004070A patent/DE102010004070A1/de not_active Ceased
  • 2010-12-21 CN CN201080054972.9A patent/CN102652033B/zh active Active
  • 2010-12-21 CA CA2780194A patent/CA2780194A1/en not_active Abandoned
  • 2010-12-21 WO PCT/EP2010/007839 patent/WO2011082809A1/de active Application Filing
  • 2010-12-21 US US13/519,498 patent/US8920544B2/en active Active
  • 2010-12-21 EP EP10798966A patent/EP2521603A1/de not_active Ceased
  • 2010-12-21 AU AU2010341131A patent/AU2010341131A1/en not_active Abandoned
  • 2010-12-21 RU RU2012121601/05A patent/RU2012121601A/ru unknown
  • 2010-12-21 KR KR1020127020555A patent/KR20130000375A/ko not_active Application Discontinuation
  • 2010-12-21 JP JP2012546379A patent/JP2013516304A/ja active Pending
• 2012
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• 2016
  • 2016-03-17 JP JP2016053862A patent/JP2016165722A/ja active Pending

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