EP4457006A1 - Solide dessicant résistant aux hydroxydes alcalins - Google Patents
Solide dessicant résistant aux hydroxydes alcalinsInfo
- Publication number
- EP4457006A1 EP4457006A1 EP22850654.9A EP22850654A EP4457006A1 EP 4457006 A1 EP4457006 A1 EP 4457006A1 EP 22850654 A EP22850654 A EP 22850654A EP 4457006 A1 EP4457006 A1 EP 4457006A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zeolite
- kaolin
- mixtures
- desiccant
- solid
- 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.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—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
- B01D53/0462—Temperature swing adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification
- C01B3/56—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
- C25B15/083—Separating products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/104—Alumina
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/11—Clays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/10—Nitrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/16—Hydrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/18—Noble gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/042—Purification by adsorption on solids
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Definitions
- the present invention relates to the field of the production of dihydrogen and in particular the production of dry dihydrogen, and more specifically the production of dihydrogen dried on a molecular sieve.
- electrolytes can thus be used, and reference will be made here in particular to basic electrolytes, in particular electrolytes based on alkali metal hydroxide, and most particularly sodium hydroxide and potassium hydroxide.
- One of the most effective electrolytes is constituted by aqueous solutions of potassium hydroxide, also called potash, or KOH.
- dihydrogen is obtained on the cathode by the reduction of two protons.
- the hydrogen gas thus recovered is wet, i.e. it contains more or less significant traces of water.
- the wet dihydrogen recovered optionally, but most often, contains traces of alkali metal hydroxide, and for example traces of potassium.
- wet gases are usually dried by different techniques, for example by membrane permeation, by washes gases by formulations based on organic compounds, for example based on glycol.
- desiccant solids such as activated aluminas, silica gels or molecular sieves for drying organic liquids or gases, as described for example in patent EP1597197 B1, where 3A zeolite agglomerates allow the drying of esters and alcohols.
- wet hydrogen is most often dried using solid desiccants.
- Zeolitic agglomerates also known as molecular sieves, are among the most effective desiccants and make it possible to achieve very low water residuals of around one part per million.
- zeolites which are alumino-silicates of controlled crystallinity.
- the zeolite crystals which are in the form of very fine powder, must be shaped to be easier to handle, and for example in the form of balls or threads.
- agglomeration binders are most often clay-type binders, and are now well known and commonly used to control the final shape of zeolite agglomerates.
- clay-based agglomeration binders are most of the time very sensitive to the action of inorganic bases, such as sodium hydroxide or potassium hydroxide, and others.
- This fragility leads to molecular sieves which run the risk of not being sufficiently stable under the conditions for drying gases originating from electrolysis using basic electrolytes, in particular electrolytes based on alkali metal hydroxide, and most particularly electrolytes based on sodium hydroxide and potassium hydroxide.
- the technical problem that the present invention proposes to solve is therefore the supply of a solid desiccant intended for the drying of moist gases produced by basic electrolysis and which is resistant to traces of alkali metal hydroxides present in said moist gases.
- Another object of the present invention is to provide solid desiccants resistant to traces of potassium hydroxide present in humid gases.
- the present invention relates to the use for drying wet gas comprising traces of alkali metal hydroxide, of a desiccant solid comprising at least one kaolin compound.
- the wet gas which can be dried using the aforementioned desiccant solid can be of any type well known to those skilled in the art, and for example and without limitation the gas is chosen from industrial gases such as nitrogen, oxygen, hydrogen, rare gases, carbon dioxide, and mixtures thereof, and in particular hydrogen, optionally mixed with one or more of the other gases listed above, and most particularly hydrogen obtained by electrolysis in a basic medium.
- industrial gases such as nitrogen, oxygen, hydrogen, rare gases, carbon dioxide, and mixtures thereof, and in particular hydrogen, optionally mixed with one or more of the other gases listed above, and most particularly hydrogen obtained by electrolysis in a basic medium.
- the moisture content of the gas to be dried in the context of the use of the present invention can vary in large proportions, in particular depending on the nature of the gas to be dried (wet gas) and the nature of the solid desiccant used. As a general rule, the humidity level is between 5 ppm by volume and 2% by volume. By moisture content is meant the volumetric quantity of water contained in the gas to be dried.
- traces of alkaline hydroxide such as lithium hydroxide, sodium hydroxide, potassium hydroxide, and mixtures thereof, more particularly sodium hydroxide , potassium hydroxide, and mixtures thereof, more specifically traces of potassium hydroxide.
- traces is meant more precisely contents comprised between 1 ppm and 1000 ppm, preferably between 1 ppm and 500 ppm, by volume.
- the solid desiccant which is the subject of the use according to the present invention can be of any type well known to those skilled in the art and by way of non-limiting examples can be chosen from activated aluminas, gels silica, molecular sieves, and others, as well as mixtures thereof in all proportions. Particularly preferred are molecular sieves, and among these zeolite agglomerates, and more specifically zeolite agglomerates comprising crystals of zeolite(s) and at least one kaolin compound.
- the kaolin compound is a kaolin binder which binds together the zeolite crystals (s) in order to confer cohesion to said zeolite agglomerate.
- zeolitic agglomerates with a kaolin binder are very well known to those skilled in the art, and are commercially available or can be prepared according to known procedures and available in the scientific literature and the patent literature or even on the Internet.
- the solid desiccant is a zeolite agglomerate comprising from 70% to 99.99%, preferably from 70% to 99.9%, more preferably from 80% to 99, 9% by weight, limits included, of crystals of at least one zeolite chosen from LTA-type zeolites, FAll-type zeolites, SOD-type zeolites, P-type zeolites, and mixtures thereof, and preferably from 3A, 4A, 5A, 13X zeolites, and mixtures thereof, more preferably from 3A and 4A zeolites, and mixtures thereof.
- the zeolite agglomerate which can be used in the context of the present invention may also comprise crystals of one or more zeolites, other than those already listed above.
- zeolite agglomerates whose zeolite crystals are perfectly suitable for drying gases, for example 3A, 4A, 5A, 13X zeolites, and mixtures thereof, more preferably 3A and 4A zeolites, and mixtures thereof.
- the kaolin compound is advantageously a kaolin binder.
- kaolin binder is meant a kaolin clay or a precursor of kaolin clay and more particularly a clay chosen from kaolins, kaolinites, nacrites, dickites, halloysites and metakaolins, and mixtures thereof.
- the zeolitic agglomerate which can be used in the context of the present invention may also comprise one or more other binders, but also one or more inert fillers, with the aim of further reinforcing the cohesion of the solid desiccant, of modifying its density, of create porosity.
- binders for example, of bentonite, without this example being limiting.
- inert fillers mention may be made, for example, in a non-limiting manner, of sources of silica of any type known to those skilled in the art, specialist in the synthesis of zeolites, such as colloidal silica, diatoms, perlite , the ashes of calcination (“fly ash” in English English), sand, or any other form of solid silica, but also glass fibers, carbon fibers, carbon nanotubes, and others and mixtures thereof.
- sources of silica of any type known to those skilled in the art specialist in the synthesis of zeolites, such as colloidal silica, diatoms, perlite , the ashes of calcination (“fly ash” in English English), sand, or any other form of solid silica, but also glass fibers, carbon fibers, carbon nanotubes, and others and mixtures thereof.
- the other binders and/or inert fillers do not represent more than 33% by weight relative to the total weight of the kaolin compounds, the other binders and the fillers.
- the kaolin compound may also comprise one or more additives, preferably organic, for example lignin, starch, methylcelluloses and their derivatives, surface-active molecules (cationic, anionic, nonionic or amphoteric ), intended to facilitate the preparation of the desiccant solid, in particular the handling of the zeolite(s)/kaolin compound(s) paste by modifying the rheology and/or the tackiness or to confer on the desiccant solid properties satisfactory, in particular of macroporosity. They are introduced during the preparation of the solid desiccant at a rate of 0 to 5%, preferably 0.1% to 2%, by weight relative to the total weight of the adsorbent.
- additives preferably organic, for example lignin, starch, methylcelluloses and their derivatives, surface-active molecules (cationic, anionic, nonionic or amphoteric ), intended to facilitate the preparation of the desiccant solid, in particular the handling of the zeolite(s)/kaolin
- methyl celluloses and their derivatives such as carboxymethylcellulose, lignosulphonates, polycarboxylic acids and the acids of carboxylic copolymers, their amino derivatives and their salts, in particular the alkaline salts and ammonium salts.
- the kaolin compound may be totally or partly, and preferably partly, zeolitized, that is to say that all or part respectively of the compound, or binder, kaolin is transformed into zeolitic material, either before use, or during use, or before and during use.
- the zeolite can be carried out by any means well known to those skilled in the art and for example as described in EP1697042. Zeolithization can also take place, under certain conditions, during the actual use of gas drying. Without wishing to be bound by theory, it is believed that the presence of traces of alkali hydroxide, possibly in association with temperature rises at least locally in the desiccant solid, can lead to at least partial zeoliteization of the kaolin compound or binder.
- desiccant solids comprising a zeolitic compound are particularly resistant to the presence of traces of alkali metal hydroxides, in particular traces of potash present in wet dihydrogen to be dried, in particular in dihydrogen obtained by electrolysis.
- the desiccant solids comprising a kaolin compound resist particularly well and in particular better than the desiccant solids commonly used and known today for the drying of gases.
- the use of the present invention is particularly suitable for zeolite agglomerates with a kaolin binder and more particularly for zeolite agglomerates based on 3A, 4A, 5A and/or 13X zeolite comprising kaolin as an agglomeration binder which can be totally or at least partially zeolited, and preferably for agglomerates based on 3A and/or 4A zeolite, with kaolin binder, non-zeolited or partially or totally zeolited.
- the present invention relates to a process for drying wet gas comprising traces of alkali metal hydroxide, comprising at least one step of bringing said wet gas into contact with a solid desiccant comprising at least one kaolin compound such that it has just been defined.
- the contacting of said moist gas with the solid desiccant can be carried out according to any method well known to those skilled in the art and in particular in an adsorber, which is for example and most often a column containing the solid desiccant.
- the method of the invention can be implemented according to various techniques and methods and for example according to a method chosen from:
- pressure-modulated processes for example of the PSA type (Pressure Swing Adsorption or “Pressure Swing Adsorption” in English) or of the VSA type (Vacuum Swing Adsorption or “Vacuum Swing Adsorption”), or of the VPSA (hybrid process of the 2 previous ones), or of the RPSA type (“Rapid Pressure Swing Adsorption” in English), preferably of the PSA type,
- the wet gas intended to be dried in the process of the present invention may have been subjected to a first drying beforehand, if desired or if desired, and in particular if the water content of the wet gas is too high.
- This first drying step can be carried out according to any method well known to those skilled in the art and for example by cooling the gas and purging the condensed water or by passage through a membrane.
- the method of the invention is generally carried out at pressure between atmospheric pressure and 10 MPa, preferably between atmospheric pressure and 5 MPa and at room or moderate temperature, preferably below the boiling temperature of the water at the considered pressure.
- the method of the invention is particularly well suited for drying wet dihydrogen obtained by electrolysis with basic electrolyte and in particular electrolyte based on potash.
- the dihydrogen drying process obtained by basic electrolysis in the presence of potash is particularly effective when the desiccant solid is a zeolite agglomerate as defined previously, and for example a zeolite agglomerate based on 3A, 4A, 5A and/or 13X zeolite comprising kaolin as agglomeration binder, and preferably for a zeolite agglomerate based on 3A and/or 4A zeolite, with a kaolin binder.
- the desiccant solid as described in the present invention unlike the desiccant solids used today, is much more stable and resistant to basic attacks. This results in less contamination of the gas to be dried by dust or the like and above all a limited increase in the pressure drops in the desiccant systems, in particular the adsorbers, as they operate. Thus the use for the drying of wet gases of a solid desiccant as described above is more effective and has a significant and certain economic advantage.
- the stabilities of the desiccant solids were evaluated according to the following test. In an Erlenmeyer flask, 5 g of sieve activated beforehand at 550° C. for 2 hours, are suspended in 100 mL of a potassium hydroxide solution at 110 g L' 1 .
- the solid particles are left in contact with the solution for 1 hour, with manual stirring from time to time.
- the solutions are then recovered by filtration for the determination of silicon and aluminum.
- the sieve is then dried at approximately 50°C for 8 hours (without washing with water) then activated in a ventilated oven at 230°C for 3 hours (direct instruction).
- Sample 1 (comparative) 4A zeolite agglomerate with 20% attapulgite binder weight
- Sample 2 (invention) 4A zeolite agglomerate with 20% weight of kaolin binder
- Sample 3 (invention): 4A zeolite agglomerate with 20% weight of zeolite kaolin binder (2% residual binder) with an aqueous solution of 110 g L′ 1 of sodium hydroxide (NaOH) at 95° C. for 2 hours, with an aqueous NaOH solution to zeolite agglomerate mass ratio of 2.1.
- the water adsorption capacity (H50), expressed in %, is determined by the ratio of the increase in the mass of 1 g of desiccant solid activated after water saturation at the end of a stay 24 hours in a closed enclosure at 23 ⁇ 2°C, the relative humidity of which is equal to 50%, on the mass of reference activated desiccant solid (here 1 g), multiplied by 100.
- the Mechanical Resistance (RM) measured corresponds to the crushing resistance in grains.
- the mechanical grain crushing strengths are determined with a "Grain Crushing Strength” device marketed by Vinci Technologies, according to the ASTM D 4179 and D 6175 standards.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Drying Of Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2114669A FR3131545A1 (fr) | 2021-12-30 | 2021-12-30 | Solide dessicant résistant aux hydroxydes alcalins |
| PCT/FR2022/052419 WO2023126595A1 (fr) | 2021-12-30 | 2022-12-19 | Solide dessicant résistant aux hydroxydes alcalins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4457006A1 true EP4457006A1 (fr) | 2024-11-06 |
Family
ID=81326722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22850654.9A Pending EP4457006A1 (fr) | 2021-12-30 | 2022-12-19 | Solide dessicant résistant aux hydroxydes alcalins |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20250170522A1 (fr) |
| EP (1) | EP4457006A1 (fr) |
| JP (1) | JP2024546344A (fr) |
| KR (1) | KR20240116927A (fr) |
| CN (1) | CN118450934A (fr) |
| AU (1) | AU2022425599B2 (fr) |
| CA (1) | CA3240689A1 (fr) |
| FR (1) | FR3131545A1 (fr) |
| TW (1) | TWI864540B (fr) |
| WO (1) | WO2023126595A1 (fr) |
| ZA (1) | ZA202404795B (fr) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3123057B2 (ja) * | 1990-04-11 | 2001-01-09 | 東ソー株式会社 | X型ゼオライト成形体の製造方法 |
| JP3066430B2 (ja) * | 1991-12-10 | 2000-07-17 | 東ソー株式会社 | ゼオライトx型成形体の製造方法 |
| US6168720B1 (en) * | 1997-06-20 | 2001-01-02 | Uop Llc | Process for drying CH2F2 refrigerant utilizing zeolite |
| US6183539B1 (en) * | 1998-07-01 | 2001-02-06 | Zeochem Co. | Molecular sieve adsorbent for gas purification and preparation thereof |
| JP4686889B2 (ja) * | 2000-04-20 | 2011-05-25 | 東ソー株式会社 | 水素ガスの精製方法 |
| FR2850963B1 (fr) | 2003-02-11 | 2005-03-25 | Ceca Sa | Adsorbants agglomeres, leur procede de preparation et leur utilisation pour le sechage de composes organiques |
| FR2863909B1 (fr) | 2003-12-22 | 2006-05-26 | Ceca Sa | Methode de purification de flux gazeux pollue par co2 et hydrocarbure(s) et/ou oxyde(s) d'azote par adsorbant zeolitique agglomere |
| JP2006236776A (ja) * | 2005-02-24 | 2006-09-07 | Osamu Ichimaru | 燃料電池 |
| US20070077480A1 (en) * | 2005-10-05 | 2007-04-05 | Curello Andrew J | Scavenger materials in fuel cartridge |
| DE102008046155B4 (de) * | 2008-03-03 | 2017-01-26 | Chemiewerk Bad Köstritz GmbH | Verfahren zur Herstellung eines Adsorptionsmittelgranulates |
| JP6231296B2 (ja) * | 2013-05-16 | 2017-11-15 | エア・ウォーター株式会社 | ガスの減湿装置および方法 |
| FR3009299B1 (fr) * | 2013-08-05 | 2019-11-15 | Arkema France | Materiau zeolithique a base de zeolithe mesoporeuse |
| KR20140092274A (ko) * | 2014-06-03 | 2014-07-23 | 주식회사 리빙케어 | 수소연료전지와 그 수소연료전지에서 발생 된 전기에너지로 작동하는 열전반도체가 구비된 제습기를 이용한 물 생성 및 식수장치 |
| WO2021198166A1 (fr) * | 2020-03-30 | 2021-10-07 | Total Se | Procédé de conversion de gaz en oléfines avec coproduction d'hydrogène conjointement à un procédé d'intégration thermique |
| WO2021195704A1 (fr) * | 2020-04-01 | 2021-10-07 | Jarrod Ward | Système intégré de refroidissement et de capture d'eau |
-
2021
- 2021-12-30 FR FR2114669A patent/FR3131545A1/fr active Pending
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2022
- 2022-12-19 WO PCT/FR2022/052419 patent/WO2023126595A1/fr not_active Ceased
- 2022-12-19 KR KR1020247021773A patent/KR20240116927A/ko active Pending
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- 2022-12-19 CA CA3240689A patent/CA3240689A1/fr active Pending
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| TW202333847A (zh) | 2023-09-01 |
| KR20240116927A (ko) | 2024-07-30 |
| ZA202404795B (en) | 2025-09-25 |
| JP2024546344A (ja) | 2024-12-19 |
| WO2023126595A1 (fr) | 2023-07-06 |
| AU2022425599B2 (en) | 2025-08-28 |
| US20250170522A1 (en) | 2025-05-29 |
| CA3240689A1 (fr) | 2023-07-06 |
| AU2022425599A1 (en) | 2024-06-27 |
| CN118450934A (zh) | 2024-08-06 |
| FR3131545A1 (fr) | 2023-07-07 |
| TWI864540B (zh) | 2024-12-01 |
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