EP2652331A1 - Compresseur et procédé pour compresser des gaz techniques - Google Patents

Compresseur et procédé pour compresser des gaz techniques

Info

Publication number
EP2652331A1
EP2652331A1 EP11794190.6A EP11794190A EP2652331A1 EP 2652331 A1 EP2652331 A1 EP 2652331A1 EP 11794190 A EP11794190 A EP 11794190A EP 2652331 A1 EP2652331 A1 EP 2652331A1
Authority
EP
European Patent Office
Prior art keywords
compressor
hpa
compression
expansion space
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11794190.6A
Other languages
German (de)
English (en)
Inventor
Lutz Heuer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanxess Deutschland GmbH
Original Assignee
Lanxess Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lanxess Deutschland GmbH filed Critical Lanxess Deutschland GmbH
Priority to EP11794190.6A priority Critical patent/EP2652331A1/fr
Publication of EP2652331A1 publication Critical patent/EP2652331A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0011—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons liquid pistons
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • 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
    • 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
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B63/00—Purification; Separation; Stabilisation; Use of additives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/02—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by absorption or adsorption
    • F04B37/04—Selection of specific absorption or adsorption materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
    • F04B37/20—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids for wet gases, e.g. wet air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16—Filtration; Moisture separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/20—Filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • 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
    • B01D2252/204—Amines
    • B01D2252/20436—Cyclic amines
    • B01D2252/20473—Cyclic amines containing an imidazole-ring
    • 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
    • B01D2252/2056—Sulfur compounds, e.g. Sulfolane, thiols
    • 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
    • B01D2252/30—Ionic liquids and zwitter-ions

Definitions

  • the present invention relates to a compressor and a method by means of which a particularly substantially isothermal compression of industrial gases can take place.
  • the object is achieved according to the invention by a compressor for particular isothermal compression of industrial gases, with a compression cylinder, in which an impurities exhibiting technical gas can be introduced, and one with a
  • Compressor pump in the compression cylinder einleitbaren positive displacement wherein the positive displacement liquid for at least one contamination of the technical gas has a higher solubility than for a main component of the technical gas, wherein a relaxation space for desorption of the contaminant from at least a part of the displacement liquid is provided, wherein a purge pump connected to the expansion space for removal of impurities transferred into the gas phase.
  • Another object of the invention is a method for particularly isothermal compression of industrial gases, in which a technical gas having a main component and at least one impurity is supplied to a compressor according to the invention, the technical gas is compressed by the displacement liquid, wherein at least a portion of the impurity is absorbed by the displacer and subsequently desorbs and removes at least part of the absorbed impurity from the displacer liquid into the gas phase.
  • the compressor according to the invention for the particular isothermal compression of industrial gases has a compression cylinder, in which a technical gas having impurities can be introduced, and a displaceable liquid which can be introduced into the compression cylinder with a compressor pump, wherein the displacement liquid has a higher solubility for at least one contamination of the technical gas than for has a main component of the technical gas.
  • a purge pump being connected to the expansion space for removing contaminants that have passed into the gas phase.
  • the compressor in addition to the compression cylinder and separated from the compression cylinder expansion space, the contaminants absorbed by the displacement liquid can be separated again in a controlled atmosphere, so that aging of the positive displacement avoided by a progressive contamination with absorbed impurities or at least significantly reduced can.
  • the compressor is thus less susceptible to contamination of the technical gases to be compressed, without the need for an additional upstream gas scrubber.
  • the compressor in addition to the function of compressing, can also perform the function of separating impurities from the technical gas, so that preferably the chemical and physical properties of the displacing liquid can even be selected for the purpose of absorbing impurities from the technical gas. An absorption of impurities by the displacement liquid should therefore not be avoided but even deliberately brought about.
  • the desorption of the impurities absorbed by the displacer can be integrated into the compressor, so that For example, the relaxation room can be filled and / or emptied using the compressor pump provided anyway.
  • the compressor pump can pump the displacement fluid, for example from a reservoir in the compression cylinder to compress the previously sucked and / orußpumte technical gas.
  • Displacement fluid in the compression cylinder can leave the compression cylinder at the higher pressure level, for example, by opening an outlet valve, the compressed gas.
  • the compressor pump can change its pumping direction and, in particular after a closing of the outlet valve, pump out the displacement liquid from the compression cylinder.
  • an inlet valve can be opened so that a technical gas to be compressed can be sucked into the compression cylinder with the aid of the negative pressure resulting from the pumping out of the displacement liquid.
  • the pumped-out positive displacement liquid can preferably be pumped by means of the compressor pump into the expansion space in order to be able to desorb contaminant absorbed during the compression again.
  • the purge pump can dissipate the gas phase present in the expansion space with the desorbed impurities and set the lowest possible pressure level within the expansion space. It is also possible to leave the positive displacement liquid several compression cycles in the expansion chamber, so that depending on the pumping capacity of the purge pump, a particularly low pressure level can be achieved, which is only slightly above the vapor pressure of the displacement or even in the vicinity of vacuum.
  • the compressor pump may pump at least a portion of the displacer fluid cleaned by the desorption into the compression cylinder.
  • the absorption capacity is improved, so that a correspondingly larger amount of impurities in the displacing liquid can be dissolved and separated by desorption.
  • the expansion space for desorption of the impurities is only partially filled by the displacement liquid.
  • a gas phase remains in the expansion space, into which the impurities dissolved in the displacement liquid can pass.
  • a high pressure level can be avoided and with the help of the purge pump, the lowest possible pressure level within the expansion space can be maintained. In particular, it can be avoided that the purge pump unintentionally discharges displacing liquid from the expansion space.
  • the expansion chamber preferably has a depressurization pressure p E and the compressor cylinder in the essentially empty state an intake pressure p A , wherein the expansion pressure p E is lower than the intake pressure p A , wherein in particular 0.000001 ⁇ p E / p A 0 , 9, preferably 0.0005 ⁇ ⁇ / ⁇ ⁇ ⁇ 0.7, more preferably 0.01 ⁇ p E / p A ⁇ 0.5 and more preferably 0.2 ⁇ p E p A ⁇ 0.4.
  • a comparatively low pressure sets in the expansion space, which promotes desorption of the absorbed impurities.
  • a comparatively high pressure prevail in the compression cylinder, which promotes absorption and prevents desorption in the compression cylinder or at least keeps low.
  • the expansion chamber has a depressurization pressure p E when the displacer liquid is introduced, and for the depressurization pressure p E 10 hPa ⁇ p E ⁇ 1000 hPa, in particular 50 hPa ⁇ p E ⁇ 800 hPa, preferably 100 hPa ⁇ p E ⁇ 600 hPa and especially preferably 200 hPa ⁇ p E ⁇ 400 hPa applies.
  • p E depressurization pressure
  • p E 10 hPa ⁇ p E ⁇ 1000 hPa in particular 50 hPa ⁇ p E ⁇ 800 hPa, preferably 100 hPa ⁇ p E ⁇ 600 hPa and especially preferably 200 hPa ⁇ p E ⁇ 400 hPa applies.
  • Such pressures can be achieved comparatively easily by the purge pump in the expansion chamber, wherein a desorption of the impurities can be achieved to a comparatively large extent at these pressures.
  • the expansion space has a temperature T E and the compression cylinder a compressor temperature T v , wherein 1 K ⁇ (T E -T V ) 100 K, in particular 5 K ⁇ (T E -T v ) ⁇ 50 and preferably 10 ⁇ (T E -T V ) ⁇ 30 K applies.
  • T E temperature difference
  • T v compressor temperature
  • the displaced by the absorbed heat of compression displacer be cooled, with part of this dissipated heat, for example, the relaxation room can be supplied.
  • the heated displacement liquid from the expansion space can also be supplied to the cooling side of the same heat exchanger.
  • the purge pump is designed as a vacuum pump. This makes it possible to set a particularly low pressure level within the relaxation space. Furthermore, it is possible to discharge a particularly large number of molecules of the desorbed impurities via the purge pump. Due to the special design of the vacuum pump, backflow back into the expansion space can be avoided so that inadvertent pressure increase within the expansion space due to leakage flows can be avoided.
  • At least one additional cylinder is provided for the stepwise compression of the technical gas, wherein the compressor pump is connected to the compression cylinder, the auxiliary cylinder and the expansion space such that when the compression cylinder is emptied by means of the compressor pump, both the auxiliary cylinder and the expansion space can be filled is.
  • several additional cylinders are connected in series in order to achieve a particularly high pressure level for the compressed gas by the stepwise compression.
  • three to seven additional cylinders connected in series are provided.
  • more compression cylinders or additional cylinders may be connected in parallel per stage.
  • the additional cylinder has a smaller volume than the compression cylinder or a previous additional cylinder.
  • the displacer at 23 ° C and 1000 hPa has a vapor pressure p v of p v l hPa, in particular pv ⁇ 0, l hPa, preferably p v ⁇ 0.01 hPa and more preferably p v ⁇ 0.001 hPa.
  • Suitable displacement liquids are in particular ionic liquids.
  • ionic liquids are to be understood as meaning compounds which have at least one cation or cationic group and at least one anion or anionic group but are overall charge-neutral, and are liquid at 23 ° C. and 1000 hPa. Inadvertent evaporation of the displacer can be largely avoided.
  • Preferred ionic liquids are those having an organic cation and an organic anion.
  • a suitable displacement liquid referred to as the working fluid, is described, for example, in claim 7 of DE 10 2006 014 335 A I, the content of which is hereby incorporated by reference as part of the invention.
  • Preference is given to using 1-butyl-2,3-dimethylimidazolium bis (trifluoromethylsulfonyl) imide and / or 1-butyl-3-ethyl-2-dimethylimidazoliumbis (trifluoromethylsulfonyl) imide as the displacing liquid.
  • the displacer liquid preferably has a viscosity of less than 1200 mPas at -10 ° C. and greater than 10 mPas at + 100 ° C.
  • the displacement liquid is more easily vaporized compared to the rest of the displacement liquid
  • the invention further relates to a method for, in particular, isothermal compression of industrial gases, in which a technical gas having a main component and at least one impurity is supplied to a compressor, which may be formed and developed as described above.
  • a technical gas having a main component and at least one impurity is supplied to a compressor, which may be formed and developed as described above.
  • the technical gas from the Displacer liquid compressed wherein at the same time at least a portion of the contaminant is absorbed by the displacement liquid.
  • the absorbed impurity is at least partially desorbed and removed from at least a portion of the displacement liquid in the gas phase.
  • the contaminants absorbed by the displacement liquid can be separated again in a controlled atmosphere, so that aging of the positive displacement avoided by a progressive contamination with absorbed impurities or at least significantly reduced can.
  • the process is thus less sensitive to contamination of the technical gases to be compressed.
  • the method can in particular be explained and further developed as described above with reference to the compressor according to the invention.
  • the contaminant in the desorption of the absorbed contaminant, the contaminant is vaporized by pressure reduction and / or temperature elevation. Gas scrubbing or extraction is not required.
  • both an additional cylinder for stepwise compression of the technical gas and the expansion space are preferably filled simultaneously with the empty displacement liquid. This makes it possible to perform the emptying of the compression cylinder and the filling of the additional cylinder and the expansion chamber with a common compressor pump. Additional pumps and the operation of the different pumps matching control logic are not required.
  • the expansion space for desorption of the contaminant in the gas phase is only partially filled.
  • a gas phase remains in the expansion space, into which the impurities dissolved in the displacement liquid can pass.
  • a high pressure level can be avoided and with the help of the purge pump, the lowest possible pressure level within the expansion space can be maintained.
  • the purge pump unintentionally discharges displacing liquid from the expansion space.
  • the desorbed contaminant is displaced from the expansion space by inflowing displacement liquid.
  • the discharge of the desorbed Impurities from the relaxation room can be improved.
  • the residual volume for the gas phase can be reduced if the purge pump has already reached a defined, particularly low pressure, so that the purge pump flow rate and purge pump efficiency can be improved without significant absorption of the previously desorbed impurities to have to accept.
  • the volume flow of the inflowing displacement liquid can in particular be adapted to the volume flow and / or the pressure in the expansion space.
  • FIG. 1 shows a schematic circuit diagram of a compressor according to the invention.
  • the compressor 10 shown in FIG. 1 has a compression cylinder 12, which can be filled via an inlet valve 14 with a technical gas having impurities.
  • the inlet valve 14 can then be closed and a displacer liquid configured as an ionic liquid 16 can be introduced, which compresses the technical gas to a residual volume 18.
  • the ionic liquid 16 can absorb the resulting heat of compression and absorb impurities.
  • an outlet valve 20 connected to the compression cylinder 12 can be opened.
  • an additional cylinder 22 are supplied, where the gas can be compressed again with the aid of the ionic liquid 16 to a residual volume 18.
  • the gas can be supplied via a further outlet valve 24 to a reservoir, a consumer or another auxiliary cylinder 22.
  • a compressor pump 26 By means of a compressor pump 26, the compression cylinder 22 and / or the auxiliary cylinder 22 can be filled and / or emptied.
  • a branching valve 28 is provided between the compressor pump 26 and the auxiliary cylinder 22, which connects via a throttle valve 30 a relaxation space 32.
  • the compressor pump 26 may pump the ionic liquid 16 loaded with absorbed contaminants into the expansion space 32 where the ionic liquid 16 is exposed to significantly lower pressure due to the throttle valve 30.
  • the absorbed impurities within the expansion space 32 can pass into the gas phase 34, so that the impurities can be separated by means of a purge pump configured as a vacuum pump 36.
  • the purified in the expansion chamber 32 ionic liquid 16 can be pumped out by means of the compressor pump 26 from the expansion chamber 32 and used again for the compression in the compression cylinder 12 and / or in the auxiliary cylinder 22, 16 by the cleaning of the ionic liquid better contaminants are absorbed can exchange without the ionic liquid 16 due to aging effects and changing chemical and / or physical properties.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

La présente invention concerne un compresseur (10) et un procédé selon lequel le compresseur (10) servant à la compression isotherme de gaz techniques comprend un cylindre de compression (12) dans lequel un gaz technique présentant des impuretés peut être introduit et un liquide déplaceur (16) qui peut être introduit par une pompe de compression (26) dans le cylindre de compression (12), le liquide déplaceur (16) présentant pour au moins une impureté du gaz technique une solubilité plus élevée que pour un composant principal du gaz technique. Selon l'invention, ledit compresseur comporte une chambre de détente (32) pour la désorption de l'impureté d'au moins une partie du liquide déplaceur (16), une pompe de purge (36) destinée à évacuer les impuretés passées dans la phase gazeuse (24) étant reliée à la chambre de détente (32). Les impuretés absorbées par le liquide déplaceur (16) peuvent de nouveau être séparées dans une atmosphère contrôlée par la chambre de détente (32) destinée au compresseur (10) en plus du cylindre de compression (12) et séparée du cylindre de compression (12) de sorte qu'une altération du liquide déplaceur (16) par une contamination progressive avec des impuretés peut être évitée ou au moins nettement réduite. Le compresseur (10) et le procédé sont de ce fait insensibles aux impuretés des gaz techniques à compresser.
EP11794190.6A 2010-12-13 2011-12-13 Compresseur et procédé pour compresser des gaz techniques Withdrawn EP2652331A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11794190.6A EP2652331A1 (fr) 2010-12-13 2011-12-13 Compresseur et procédé pour compresser des gaz techniques

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10194703.4A EP2463525B1 (fr) 2010-12-13 2010-12-13 Compresseur et procédé de compression de gaz techniques
PCT/EP2011/072649 WO2012080277A1 (fr) 2010-12-13 2011-12-13 Compresseur et procédé pour compresser des gaz techniques
EP11794190.6A EP2652331A1 (fr) 2010-12-13 2011-12-13 Compresseur et procédé pour compresser des gaz techniques

Publications (1)

Publication Number Publication Date
EP2652331A1 true EP2652331A1 (fr) 2013-10-23

Family

ID=44800305

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10194703.4A Not-in-force EP2463525B1 (fr) 2010-12-13 2010-12-13 Compresseur et procédé de compression de gaz techniques
EP11794190.6A Withdrawn EP2652331A1 (fr) 2010-12-13 2011-12-13 Compresseur et procédé pour compresser des gaz techniques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10194703.4A Not-in-force EP2463525B1 (fr) 2010-12-13 2010-12-13 Compresseur et procédé de compression de gaz techniques

Country Status (4)

Country Link
US (1) US9447782B2 (fr)
EP (2) EP2463525B1 (fr)
CN (1) CN103314214B (fr)
WO (1) WO2012080277A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014023961A1 (fr) * 2012-08-07 2014-02-13 Re Hydrogen Ltd Système de compression de gaz et de valorisation de gaz
FR3013399B1 (fr) * 2013-11-15 2018-12-07 Watt Ingenierie Compresseur hydraulique de vapeur et procede de compression hydraulique de vapeur
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CN103314214A (zh) 2013-09-18
EP2463525A1 (fr) 2012-06-13
US9447782B2 (en) 2016-09-20
US20130323087A1 (en) 2013-12-05
CN103314214B (zh) 2015-11-25
EP2463525B1 (fr) 2013-07-03

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