EP2539045A1 - Entfernung von wärmestabilen salzen aus organischen lösungsmitteln - Google Patents
Entfernung von wärmestabilen salzen aus organischen lösungsmittelnInfo
- Publication number
- EP2539045A1 EP2539045A1 EP11703133A EP11703133A EP2539045A1 EP 2539045 A1 EP2539045 A1 EP 2539045A1 EP 11703133 A EP11703133 A EP 11703133A EP 11703133 A EP11703133 A EP 11703133A EP 2539045 A1 EP2539045 A1 EP 2539045A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- liquid phase
- components
- salt
- water
- 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- Withdrawn
Links
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
- B01D53/1425—Regeneration of liquid absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/38—Steam distillation
Definitions
- the technical field of the invention relates to a method for removing in a temperature range of 0 ° C to 200 ° C thermally non-regenerable salts, from organic solvents such as aqueous amine solutions
- the inventive method serves as Hitfs adopted in a process for the removal of sour gas components, such as C0 2 and H 2 S, and operates a partial stream of the thermally non-regenerable salts contained
- the thermally non-regenerable salts are formed, for example, by the introduction of traces of strongly acidic gases, such as Cl 2 , HCOOH, S0 2 , S0 3) N0 2 , etc. with the feed gas, which is supplied to the absorber of the laundry.
- strongly acidic gases such as Cl 2 , HCOOH, S0 2 , S0 3) N0 2 , etc.
- Sauerergaskomponenten such as C0 2 , H 2 S, HCN, mercaptans, etc. are thermally converted back into their starting components at elevated temperatures, without changing the chemical detergent in its chemical structure. This is a reversible chemical process that can be influenced by temperature changes.
- Detergents / solvents for such components will very often be aqueous amine solutions such as e.g. MEA, DEA, TEA, DGA, DIPA, MDEA or the solvent used in the Flexsorb process known to those skilled in the art. It thus form thermally regenerable salts, the
- Detergent / solvent in a temperature range of 0 ° C to 200 ° C can be recovered and the absorbed gases are expelled from the solution in the regeneration column again.
- Amine components are also considered as an additive in so-called hybrid detergents / solvents, by which the person skilled in the art generally understands a combination of physical and chemical detergents, e.g. Sulfinol, used.
- the loaded absorption liquid is relaxed for regeneration in at least two expansion stages. At the heads a gas from C0 2 and / or H 2 S is withdrawn and in the swamp is the
- Enriched absorption liquid which is transferred to a second container.
- the bottom of the last expansion stage contains the regenerated absorption liquid.
- the HSS content should not exceed 3% by weight for a still tolerable corrosivity of the solution.
- a semi-continuous evaporator is used. Such an evaporator works by a partial flow of the out of the
- HSS-loaded solvent is fed to an evaporator, wherein exactly the chemical detergent component supplied to the evaporator, such as. the MEA of an aqueous MEA solution is evaporated to the same extent as it is supplied to the evaporator.
- An amine concentration of e.g. 80 wt% MEA in the solution is the case because under these process conditions, exactly the amount of MEA present in the feed stream is in the gas phase.
- the process in the evaporator is switched from a continuous mode of operation to a discontinuous mode of operation.
- a strong base such as NaOH
- the HSS components bound chemically to the amine are bound to the Na + ion, so that the amine, which has hitherto been fixed on HSS, can also be vaporized.
- water vapor and external heating is now in the
- Evaporator amine solution is evaporated until virtually no amine can be detected in the gas phase (for example, ⁇ 0.1 vol%).
- Reclaimer efficiency of 66 to 75% based on the pure repellent mode would correspond.
- the loss of expensive solvent (2 to 10 € per kg) is but still quite high.
- the evaporator reclaimer described above is very cost-effective in terms of investment costs and resource consumption compared with an ion exchanger, even though usually two such evaporators are used in order to ensure permanent reclaiming operation. This is particularly the case when the Reclaimerdampf formed in the evaporation is fed into the bottom of a Aminregenerators where it as Strippdampf for the thermal stripping of the amine of the
- Sauerergaskomponenten can be used and thus the required for the amine regeneration external heat quantity is reduced. If the residual losses of amine were not present, the evaporator concept described above would be the ideal reclaimer concept for chemically acting organic solvents in aqueous solution.
- the object of the invention is achieved by a method for removing in a temperature range of 0 ° C to 200 ° C thermally non-regenerable salts of organic solvents in aqueous solution by evaporation, wherein the normal boiling point of the organic solvent is higher than that of Water, and wherein the organic
- Components and the salt-like components contained therein are enriched by evaporation of water and a proportion of the organic components in a forming liquid phase of a first container and wherein a forming vapor phase is discharged from the first container.
- the liquid phase formed in the first container is guided into a second container, wherein water is passed in vaporous and / or liquid form into the second container, wherein water and a further portion of the organic component contained in the solvent are vaporized and a vapor Form phase, which is discharged from the second container, wherein the salt-like components in the forming in the second container liquid phase
- container are to be understood in the course of this description, all known to those skilled devices that can be used for evaporation processes.
- the temperature at which the evaporation is operated depends on the normal boiling point of the recoverable by means of the method according to the invention organic solvent. The definition of such parameters are familiar to the person skilled in the art and can be seen as standard in the prior art.
- Components are still soluble in the liquid phase.
- the liquid phase of the first container is guided into the second container as soon as a concentration of the salt-like component in the liquid phase of 5 to 35 wt.%, Preferably from 5 to 25 wt.%, Particularly preferably from 5 to 15 wt.% , and most preferably from 8 to 12% by weight.
- the salt concentration of the liquid phase formed in the second container is determined, and carried out a partial flow of the liquid phase from the second container, as soon as the concentration of salt-like components of the dissipated liquid phase a maximum allowable
- Component in the liquid phase of 25 to 65 wt.%, Preferably from 40 to 65 wt.%, Particularly preferably from 45 to 65 wt.%, And most preferably from 55 to 65 wt.% Is reached.
- the first container and / or the second container is optionally heated and / or cooled to ensure a corresponding evaporation.
- water is already introduced into the second container before the liquid phase formed in the first container is transferred into the second container.
- This is preferably boiler feed water, which comes from other parts of an industrial plant and will continue to be used here.
- the second container is only partially filled with water.
- Evaporating liquid phase is reached to allow the liquid phase out of the second container is discharged.
- the optimum height will be determined by the expert by routine tests in the respective individual case.
- the vapor phases of the first and / or the second container formed by evaporation are returned to a main circuit stream of an industrial plant. It is advantageous to condense this beforehand.
- Non-condensable gases are discharged and optionally introduced into the process in front of an absorber provided in the corresponding industrial plant. They can in the process of the invention
- the continuously operating method of the method is claimed.
- the liquid phase formed in the first container is fed to the second container continuously and in the second container is continuously passed water in vaporous and / or liquid form, and by controlled supply or removal of heat, water and portions of the organic components contained in the solvent continuously vaporized and a vapor phase is formed which is discharged from the second vessel, wherein the salt-like components in the liquid phase forming in the second container are concentrated, and wherein a partial flow of the liquid phase formed in the second container continuously from the second container is executed and forms a waste water stream, which comprises a concentrated salt solution which is depleted of organic components and the vapor-formed vapor phases of the first and / or the second container in a main process stream of an industrial plant back be led.
- the first container and / or the second container a strong base, such as NaOH, fed.
- a strong base such as NaOH
- the process is initially operated in a semi-continuous manner during start-up, so that there is an enrichment of the salt-containing components in the liquid phase of the second container by first only the first container, after reaching a certain concentration of salty components in the is formed there continuous liquid phase, is operated continuously and only when reaching a corresponding concentration of the salt-containing components in the liquid phase in the second container is switched to a completely continuous operation by then continuously a partial flow of the liquid phase is discharged from the second container.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Gas Separation By Absorption (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010009601A DE102010009601A1 (de) | 2010-02-26 | 2010-02-26 | Entfernung von wärmestabilen Salzen aus organischen Lösungsmitteln |
| PCT/EP2011/000413 WO2011103958A1 (de) | 2010-02-26 | 2011-01-29 | Entfernung von wärmestabilen salzen aus organischen lösungsmitteln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2539045A1 true EP2539045A1 (de) | 2013-01-02 |
Family
ID=44146297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11703133A Withdrawn EP2539045A1 (de) | 2010-02-26 | 2011-01-29 | Entfernung von wärmestabilen salzen aus organischen lösungsmitteln |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9427696B2 (de) |
| EP (1) | EP2539045A1 (de) |
| JP (1) | JP2013520304A (de) |
| CN (1) | CN102892483A (de) |
| AU (1) | AU2011220151A1 (de) |
| CA (1) | CA2790787A1 (de) |
| DE (1) | DE102010009601A1 (de) |
| RU (1) | RU2012138292A (de) |
| WO (1) | WO2011103958A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010009601A1 (de) * | 2010-02-26 | 2011-09-15 | Uhde Gmbh | Entfernung von wärmestabilen Salzen aus organischen Lösungsmitteln |
| JP2013128899A (ja) * | 2011-12-22 | 2013-07-04 | Babcock Hitachi Kk | Co2回収装置の制御方法 |
| JP7664792B2 (ja) * | 2021-08-18 | 2025-04-18 | 株式会社東芝 | 酸性ガス回収装置及び酸性ガス回収方法 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497309A (en) * | 1944-05-04 | 1950-02-14 | Du Pont | Process for the preparation of ethyleneurea |
| US2729588A (en) * | 1952-02-23 | 1956-01-03 | Fluor Corp | Operating a reboiler system for fractionating absorber-stills which comprises separately introducing vapors and liquid from the reboiler into the still and mixing absorbed vapors vaporized from the still bottoms with the liquid before its introduction into the still |
| US3255572A (en) * | 1962-12-11 | 1966-06-14 | Union Oil Co | Extraction of acidic components from gas mixtures |
| GB1203874A (en) * | 1968-03-14 | 1970-09-03 | Ucb Union Chemische Bedrijven | Process for the regeneration of alkanolamines |
| NL7514993A (nl) * | 1974-12-24 | 1976-06-28 | Hecke Francis Van | Werkwijze voor het regenereren van waterige wasoplossingen, gebruikt voor het verwijderen van zure gassen uit gasmengsels. |
| DE3408851A1 (de) * | 1984-03-10 | 1985-09-12 | Basf Ag, 6700 Ludwigshafen | Verfahren zum entfernen von co(pfeil abwaerts)2(pfeil abwaerts) und/oder h(pfeil abwaerts)2(pfeil abwaerts)s aus gasen |
| US5389208A (en) * | 1988-07-18 | 1995-02-14 | Canadian Chemical Reclaiming Ltd. | Process for reclaiming and/or concentrating waste aqueous solutions of gas treating chemicals |
| US5108551A (en) * | 1990-12-17 | 1992-04-28 | Mobil Oil Corporation | Reclamation of alkanolamine solutions |
| US5266290A (en) * | 1992-07-10 | 1993-11-30 | Thiokol Corporation | Process for making high purity hydroxylammonium nitrate |
| US5837107A (en) * | 1995-12-20 | 1998-11-17 | Basf Aktiengesellschaft | Process for production of aqueous solutions of free hydroxylamine |
| EP0918049A1 (de) * | 1997-10-27 | 1999-05-26 | Shell Internationale Researchmaatschappij B.V. | Verfahren zur Reinigung von Alkanolamin |
| US6235162B1 (en) * | 1998-05-28 | 2001-05-22 | Sachem, Inc. | Ultrapure hydroxylamine compound solutions and process of making same |
| US6508916B1 (en) | 1999-06-14 | 2003-01-21 | Canadian Chemical Reclaiming Ltd. | Process for recovering processing liquids |
| DE19932173A1 (de) * | 1999-07-13 | 2001-01-18 | Esselte Nv | Laminiervorrichtung |
| US7214358B2 (en) * | 2003-08-13 | 2007-05-08 | Cansolv Technologies Inc. | Low energy regenerable SO2 scrubbing process |
| CA2539243C (en) * | 2003-09-30 | 2010-04-20 | Arthur F. Clark | Method for separating volatile components by dilutive distillation |
| EA010565B1 (ru) * | 2004-07-12 | 2008-10-30 | Эксонмобил Апстрим Рисерч Компани | Способ удаления содержащих серу соединений из углеводородсодержащих газов (варианты) |
| US20070148068A1 (en) * | 2005-12-23 | 2007-06-28 | Burgers Kenneth L | Reclaiming amines in carbon dioxide recovery |
| JP4795991B2 (ja) * | 2007-02-27 | 2011-10-19 | 三菱重工業株式会社 | Co2回収装置及びco2回収装置における固形分取出し方法 |
| NO20092229L (no) * | 2009-06-09 | 2010-12-10 | Aker Clean Carbon As | Reclaimer for absorbent |
| US8524184B2 (en) * | 2009-07-08 | 2013-09-03 | Exxonmobil Research And Engineering Company | Sulfur recovery plant tail gas treatment process |
| US8425849B2 (en) * | 2009-10-19 | 2013-04-23 | Mitsubishi Heavy Industries, Ltd. | Reclaiming apparatus |
| DE102010009601A1 (de) * | 2010-02-26 | 2011-09-15 | Uhde Gmbh | Entfernung von wärmestabilen Salzen aus organischen Lösungsmitteln |
| HRP20210671T1 (hr) * | 2010-08-24 | 2021-06-11 | Ccr Technologies, Ltd. | Postupak za oporabu tekućina za obradu |
| EP2653209A1 (de) * | 2012-04-18 | 2013-10-23 | Siemens Aktiengesellschaft | Abscheidevorrichtung für Kohlendioxid und Verfahren zu deren Betrieb sowie Abtrenneinheit |
| US20140260979A1 (en) * | 2013-03-14 | 2014-09-18 | Cansolv Technologies Inc. | Processes for the rejuvenation of an amine acid gas absorbent used in an acid gas recovery unit |
-
2010
- 2010-02-26 DE DE102010009601A patent/DE102010009601A1/de not_active Withdrawn
-
2011
- 2011-01-29 CA CA2790787A patent/CA2790787A1/en not_active Abandoned
- 2011-01-29 WO PCT/EP2011/000413 patent/WO2011103958A1/de not_active Ceased
- 2011-01-29 CN CN2011800186791A patent/CN102892483A/zh active Pending
- 2011-01-29 US US13/580,904 patent/US9427696B2/en active Active
- 2011-01-29 RU RU2012138292/05A patent/RU2012138292A/ru not_active Application Discontinuation
- 2011-01-29 EP EP11703133A patent/EP2539045A1/de not_active Withdrawn
- 2011-01-29 AU AU2011220151A patent/AU2011220151A1/en not_active Abandoned
- 2011-01-29 JP JP2012554238A patent/JP2013520304A/ja active Pending
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2011103958A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2011220151A1 (en) | 2012-09-06 |
| CA2790787A1 (en) | 2011-09-01 |
| RU2012138292A (ru) | 2014-04-10 |
| DE102010009601A1 (de) | 2011-09-15 |
| JP2013520304A (ja) | 2013-06-06 |
| US20130098245A1 (en) | 2013-04-25 |
| WO2011103958A1 (de) | 2011-09-01 |
| CN102892483A (zh) | 2013-01-23 |
| US9427696B2 (en) | 2016-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69726012T2 (de) | Verfahren zur behandlung von gasen mittels eines ultra-armen amins | |
| EP2131945B1 (de) | Verfahren auf basis der zweiphasendestillation zur nutzung von niedertemperaturwärme für die regeneration von co2-lösungsmitteln bei der co2-abtrennung aus abgasen mittels co2-wäsche | |
| DE69403968T2 (de) | Verfahren und einrichtung zur regenerierung von fluechtigen saeuren | |
| EP2640492B1 (de) | Vorrichtung und verfahren zum aufreinigen eines mit nitrosamin verunreinigten produktes einer co2-capture-anlage | |
| DE102014110190B4 (de) | Verfahren zur Abtrennung von Kohlendioxid aus Biogas mittels einer aminhaltigen Waschlösung und Regeneration der beladenen Waschlösung sowie Anlagen zur Durchführung des Verfahrens | |
| EP2994216B1 (de) | Verfahren zur abscheidung von kohlendioxid aus einem gasstrom, insbesondere aus einem rauchgasstrom, sowie abscheidevorrichtung für kohlendioxid aus einem gasstrom, insbesondere aus einem rauchgasstrom | |
| EP2561119A1 (de) | Verfahren zur gewinnung bzw. rückgewinnung von salpetersäure und flusssäure aus lösungen von edelstahlbeizanlagen | |
| EP2736625A1 (de) | Wärmerückgewinnung bei absorptions- und desorptionsprozessen | |
| EP2539045A1 (de) | Entfernung von wärmestabilen salzen aus organischen lösungsmitteln | |
| WO2005061857A1 (de) | Vorrichtung und verfahren zur umwandlung von wärmeenergie in mechanische energie | |
| EP0078412B1 (de) | Verfahren und Vorrichtung zur Regenerierung von physikalisch wirkenden organischen Waschflüssigkeiten | |
| DD242755A5 (de) | Verfahren zur regenerierung eines beladenen waschmittels | |
| EP2353701A1 (de) | Rauchgaswäscher mit zugeordnetem Kühlturm | |
| WO2014191160A1 (de) | Abscheidevorrichtung für kohlendioxid aus einem gasstrom, sowie verfahren zur abscheidung von kohlendioxid aus einem gasstrom | |
| EP3132840A1 (de) | Verfahren und vorrichtung zur abtrennung von gasförmigen schadstoffen aus einem gasstrom | |
| DE2912115B2 (de) | Verfahren zur selektiven Entschwefelung von Gasen | |
| EP0011228B1 (de) | Verfahren zur Entfernung unerwünschter gasförmiger Bestandteile aus heissen Abgasen | |
| DE19631332A1 (de) | Entfernung störender Komponenten aus dem Lösemittelkreislauf von Gaswäschen | |
| DE2645384A1 (de) | Verfahren zur herstellung von gereinigtem schwefeloxiddampf | |
| EP2481469A1 (de) | Lösungsmittel, Verfahren zur Bereitstellung einer Absorptionsflüssigkeit, Verwendung des Lösungsmittels und Verfahren zur Aktivierung eines Lösungsmittels | |
| EP2228117B1 (de) | Absorberflüssigkeit, Verfahren zur Herstellung einer Absorberflüssigkeit sowie Verwendung einer Absorberflüssigkeit | |
| DE2940412A1 (de) | Verfahren und anlage zum abkuehlen und abscheiden von chloriden und fluoriden aus ammoniakhaltigem gas | |
| WO2013013750A1 (de) | Wärmerückgewinnung bei absorptions- und desorptionsprozessen bei reduzierter wärmeaustauschfläche | |
| CN106984152A (zh) | 一种用于捕集二氧化碳的新型两相混合物 | |
| DE313918C (de) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20120924 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20140204 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: B01D 1/14 20060101AFI20180730BHEP Ipc: B01D 53/14 20060101ALI20180730BHEP Ipc: B01D 3/14 20060101ALI20180730BHEP Ipc: B01D 3/38 20060101ALI20180730BHEP |
|
| INTG | Intention to grant announced |
Effective date: 20180903 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20190115 |