EP4397931A1 - Verfahren zur thermischen trocknung von holz unter co2-atmosphäre - Google Patents
Verfahren zur thermischen trocknung von holz unter co2-atmosphäre Download PDFInfo
- Publication number
- EP4397931A1 EP4397931A1 EP24150450.5A EP24150450A EP4397931A1 EP 4397931 A1 EP4397931 A1 EP 4397931A1 EP 24150450 A EP24150450 A EP 24150450A EP 4397931 A1 EP4397931 A1 EP 4397931A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wood
- temperature
- drying
- hygrometry
- dried
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/40—Arrangements for supplying or controlling air or other gases for drying solid materials or objects using gases other than air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/001—Air generating units, e.g. movable or independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/20—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/202—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with means for changing the flow pattern, e.g. by reversing gas flow or by moving the materials or objects through subsequent compartments, at least two of which have a different flow direction
- F26B21/206—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with means for changing the flow pattern, e.g. by reversing gas flow or by moving the materials or objects through subsequent compartments, at least two of which have a different flow direction by reversing fan rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/20—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/202—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with means for changing the flow pattern, e.g. by reversing gas flow or by moving the materials or objects through subsequent compartments, at least two of which have a different flow direction
- F26B21/208—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with means for changing the flow pattern, e.g. by reversing gas flow or by moving the materials or objects through subsequent compartments, at least two of which have a different flow direction by air valves, movable baffles or nozzle arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/20—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/25—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/30—Controlling, e.g. regulating, parameters of gas supply
- F26B21/33—Humidity
- F26B21/333—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/30—Controlling, e.g. regulating, parameters of gas supply
- F26B21/35—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/30—Controlling, e.g. regulating, parameters of gas supply
- F26B21/37—Velocity of flow; Quantity of flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying goods
- F26B2210/16—Wood, e.g. lumber, timber
Definitions
- industrial wood means wood intended for use in secondary wood processing sectors, particularly for industry, construction, carpentry, or for urban, industrial, exterior and interior design. collective and domestic.
- the disadvantages in use include, but are not limited to, an unequal distribution of forces at any point of said material which can cause structural weaknesses, deformations rendering the material unusable, accelerated wear of the material over time, and significant volume shrinkage between the non-functional state. dried and the dried state, and therefore poor material yield from the drying process.
- the step of activating the heating means to adjust the hygrometry of the wood includes a sub-step of monitoring the hygrometry of the wood. in real time and that the heating step includes a sub-step for monitoring the hygrometry of the wood in real time.
- the step of activating the recycling means comprises a sub-step of implementing a sequence of activation/deactivation of a flow reversal module according to a chosen F1 frequency.
- the step of reducing the temperature of the heating chamber according to a first phase comprises a temperature limit according to a first set temperature T3 between 50°C and 100°C, according to a gradient temperature chosen G3 of 2°C/hour.
- metrological data and parameters of the wood to be dried are acquired by measuring the metrological means 5.
- the measurement of the various parametric data is carried out to calibrate the setpoint values to be applied.
- the maximum quantity of CO 2 sequestered is 250kg/m 3 of wood.
- the activation step S42 of the recycling means 600 further comprises starting an activation/deactivation sequence of a flow inversion module according to a chosen, configured frequency F1 to reverse the direction of the flow of the gas mixture circulating in the drying chamber 1 according to a chosen frequency in two directions of circulation.
- the heating means 2 are activated so that heating is carried out with a limit temperature defined by a second set temperature T2 of 120°C according to a chosen temperature gradient G2, and as a function of the drying profile specific to the wood to be dried allowing the bound water to be extracted from the wood to be dried more precisely.
- the chosen temperature gradient G2 is between 1 and 3°C/hour.
- the chosen intermediate target value Hi of the measured wood hygrometry is equal to the desired final target hygrometry Hc + 1.5 to 2.5%.
- the temperature gradient G2 is chosen according to the specific drying profile of the wood to be dried, making it possible to extract the bound water from the wood to be dried, and dynamic, so as to be adjusted when approaching the Intermediate target value Hi of wood humidity chosen.
- the step of maintaining the wood to dry S5 is implemented by deactivating S51 the recycling means 600, and by modulating the activity of the heating means 2 to reduce the temperature S52 of the heating chamber 1 according to a first phase, up to a third stabilization set temperature T3 chosen according to a temperature gradient G3, when the average hygrometry measured of the wood via the means for measuring the hygrometry 54 of the wood reaches the chosen intermediate target value Hi, the hygrometry is stabilized S53.
- the temperature of the drying chamber 1 is stabilized S54, and maintained for a chosen duration of time D, even if the set temperature T3 is not achievement.
- stabilizing the temperature for a chosen duration D when the measured hygrometry reaches a value included in a range of chosen target hygrometry values less than or equal to Hi allows hygroscopic rebalancing of the wood to be dried.
- the temperature in the drying chamber 1 is reduced according to chosen conditions.
- the deactivation sub-step S61 further comprises stopping the flow inversion module.
- the chosen temperature gradient G3 is 2°C/hour.
- the temperature gradient G3 is chosen identically, regardless of the specific drying profile of the wood to be dried, this being also dynamic, so as to be adjusted when approaching the final target value Hc chosen wood hygrometry.
- the final target value Hc for wood hygrometry is between 0% and 18%.
- the method according to the invention further comprises a step S7 of evacuating the atmosphere from the drying chamber including CO 2 , configured to desaturate the drying chamber 1 with CO 2 and thus extract the dried wood when the hygrometry measured wood is less than or equal to the final target hygrometry value Hc, and after stabilization of the temperature for the chosen duration.
- the drying profile is specific for each type of wood, each type of wood therefore having a hygrometric evolution curve at the heart of the wood depending on the drying time specific to it and the sequencing of the increase in temperature specific associates, which dictate the temperature increase profile to be applied during the heating phases, and serves as a basis for comparison with the metrology measurements recorded so that the computer control system 6 retro-adjusts these same measurements to set values , this in order to obtain optimal and industrial drying of the wood.
- Variation in water content in cell walls normally causes wood to deform. Wood “swells” when it absorbs water, and it contracts when it loses water. These dimensional variations of a wood sample, which generates a variation in volume, are not the same according to the three reference directions: radial, tangential and longitudinal.
- low tangential and radial shrinkage allows a material saving of up to 20% when the lignocellulosic material is used.
- the use of dried wood-type lignocellulosic material makes it possible to obtain manufacturing products having improved mechanical properties, with reduced swelling following moisture absorption and improved durability, while limiting material losses during of manufacturing linked to deformations, detachments, cracks which generates a yield between 40 and 50% during the transformation of wood via conventional drying. In other words, 50 to 60% less waste is obtained per cubic meter of processed wood.
- the process according to the invention therefore makes it possible, via fine regulation of the hygrometry of the wood, to obtain dried wood with precise hygrometry, with a shrinkage less than or equal to 5%, a negligible deformation rate, and with a limitation , or even elimination of the appearance of cracks in the wood thus dried.
- the method according to the invention can be implemented by a drying installation under a CO 2 atmosphere comprising at least one drying module C1, each drying module C1 having several functional groups among which a heating chamber 1 comprising at least a drying tube into which the wood to be dried is introduced, heating means 2, CO 2 supply means 3, gas circulation means 4 allowing the renewal of the atmosphere inside the drying chamber drying 1, several metrology measurement units forming metrological means 5, and finally a computer control system 6 equipped with an API application programming interface.
- the drying module C1 has a drying chamber 1 composed of one or more hollow cylindrical drying tubes allowing the introduction of the wood to be dried.
- the drying chamber is connected to the heating means 2 by an inlet conduit 206a, and has an outlet conduit 206b configured to evacuate a gas mixture CO 2 , or CO 2 /H 2 O from said drying chamber 1 depending on the progress of drying.
- inlet conduit 206a is arranged at a first end of the drying chamber 1 and the outlet conduit 206b at a second end of the drying chamber 1 so as to allow longitudinal circulation of the CO2 gas mixture compared to the wood to be dried.
- the drying chamber 1 comprises a minimum volume of 10m3 saturable with CO2.
- the drying chamber 1 comprises metrological means 5 configured to measure parameters belonging to the group formed by hygrometry of the wood to be dried, hygrometry in the drying chamber 1, temperature of the wood to be dried, temperature in the chamber drying chamber 1, pressure in drying chamber 1.
- the drying chamber 1 comprises at least one probe for measuring the temperature and hygrometry in the drying chamber 53.
- the drying chamber 1 comprises two probes for measuring the temperature and hygrometry in the drying chamber 53
- the drying chamber 1 comprises at least one probe for measuring the hygrometry of the wood to be dried 54.
- the drying chamber 1 further comprises a pressure measuring probe 55 in said drying chamber 1, allowing the emergency evacuation of part of the atmosphere contained in the drying chamber 1 in the event of critical pressure therein.
- the critical pressure can be 1.5 bar.
- the drying chamber 1 further comprises door closing sensors 62, configured to detect the closing status of the doors for inserting the wood to be dried.
- the drying chamber 1 measures 5.5m long with a circulation diameter of 2.4 meters, cylindrical or quasi-cylindrical in shape and contained in a maritime container insulated with wood wool panels. thickness 60mm.
- This box is connected at one end to the other by a heat-insulated pipe, a heating system 2 and four centrifugal circulation fans withstanding temperatures of up to 250°C.
- the drying module C1 comprises CO 2 3 supply means configured to control the injection of the CO 2 gas mixture coming from at least one CO 2 source.
- the CO 2 3 supply means comprise at least one probe for measuring the temperature and the circulating flow rate 51.
- the drying means 1 consist of a plurality of drying modules C1, each connected to individual heating means 2.
- the heating means 2 are also connected to an outlet conduit 206b connecting an outlet end of the drying chamber 1 to said heating means 2, and forming a closed loop circulation conduit for the CO 2 gas mixture.
- the outlet duct 206b comprises at least two ducts connected to the drying chamber 1, each duct comprising at least one fan 42. These fans 42 are configured to each operate in one direction of circulation, i.e. at least one fan towards the drying chamber 1 and a fan from the drying chamber to the heating means 2.
- the circulation means 4 of the fan type 41, 42 are of the medium pressure centrifugal fan type and single suction with sheath and turbine made of sheet steel, said fan comprising a turbine with blades inclined towards the front made of galvanized steel sheet, the fan 51 being capable of withstanding a maximum temperature of the air or CO 2 to be transported from -20°C to 250°C.
- the circulation means 4 of the inlet conduit 206a in combination with the circulation means 4 of the outlet conduit 206b form a flow reversal module capable of allowing the circulation of the CO 2 gas mixture from the heating means 2 to from the drying chamber 1 in a first direction of operation and from the drying chamber 1 towards the heating means 2 in a second direction of operation, and thus force the circulation of the CO 2 gas mixture in a closed circuit, through the chamber drying 1 in two directions of circulation.
- monitoring the CO 2 /CH4 of the gas mixture during drying makes it possible to record the evolution of the concentration of the different compounds in the circulating gas mixture and thus allow the adjustment of the operation of the drying module 1, but also ensure the safety of the drying module C1 in the event of a drastic increase in the quantity of CH 4 .
- the outlet conduit 206b further comprises metrological means 5 configured to measure parameters belonging to the group formed by flow rate of the injected circulating CO 2 gas mixture, temperature of the injected circulating CO 2 gas mixture, and hygrometry of the circulating gas mixture.
- the outlet conduit 206b comprises at least one temperature and humidity measurement probe 53 placed upstream and a temperature and humidity measurement probe 53 placed downstream of means of recycling 600 CO 2 .
- the outlet conduit 206b comprises at least one temperature and humidity measurement probe 53 placed upstream and a temperature and humidity measurement probe 53 placed downstream of recycling means 600 of the CO 2 , and at least one temperature and circulating flow measurement probe 51 placed upstream and a temperature and circulating flow measurement probe 51 placed downstream of CO 2 recycling means 600.
- such an arrangement makes it possible to monitor the composition of the circulating gas mixture but also the activity of the CO 2 recycling means 600 as well as their modulation.
- the heat exchanger of the recycling means 600 also makes it possible to heat the dehydrated gas mixture before reinjection into said installation.
- the heat exchanger is configured to heat the cooled gas mixture after extraction of the water up to a temperature differential of 50°C with the temperature of the circulating gas mixture, for reinjection into drying chamber 1.
- the recycling means 600 make it possible to control the hygrometry of the gas mixture and thus control the quality of drying of the wood, thus optimizing the drying process and the quality of the material obtained, while limiting energy expenditure and maintaining a temperature difference. low between the CO 2 leaving the heating means 2 and coming from the recirculation module 206c.
- the drying module C1 also includes an energy consumption meter.
- the computer control system 6 is configured to control the supply means 3, circulation 4, heating 2, and recycling means 600 according to appropriate programs, set values and drying times depending on the quality of the dried wood sought, and processing means for measuring, comparing and readjusting the operating parameters to the set values in the event of a deviation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HRP20251514TT HRP20251514T1 (hr) | 2023-01-05 | 2024-01-04 | Metoda termičkog sušenja drva u co₂ atmosferi |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2300136A FR3144861B1 (fr) | 2023-01-05 | 2023-01-05 | Procédé de séchage thermique de bois sous atmosphère CO2 |
| FR2300130A FR3144860B1 (fr) | 2023-01-05 | 2023-01-05 | installation de séchage thermique de bois par séquestration CO2 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4397931A1 true EP4397931A1 (de) | 2024-07-10 |
| EP4397931C0 EP4397931C0 (de) | 2025-09-10 |
| EP4397931B1 EP4397931B1 (de) | 2025-09-10 |
Family
ID=88020799
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23768836.1A Pending EP4623259A1 (de) | 2023-01-05 | 2023-09-11 | Anlage zur verarbeitung von co2 aus einer co2-gasquelle mit hoher ausgangsleistung und mittel zum trocknen von holz in einer co2-atmosphäre |
| EP24150447.1A Active EP4397930B1 (de) | 2023-01-05 | 2024-01-04 | Thermische holztrocknungsanlage durch co2-sequestration |
| EP24150450.5A Active EP4397931B1 (de) | 2023-01-05 | 2024-01-04 | Verfahren zur thermischen trocknung von holz unter co2-atmosphäre |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23768836.1A Pending EP4623259A1 (de) | 2023-01-05 | 2023-09-11 | Anlage zur verarbeitung von co2 aus einer co2-gasquelle mit hoher ausgangsleistung und mittel zum trocknen von holz in einer co2-atmosphäre |
| EP24150447.1A Active EP4397930B1 (de) | 2023-01-05 | 2024-01-04 | Thermische holztrocknungsanlage durch co2-sequestration |
Country Status (9)
| Country | Link |
|---|---|
| US (3) | US20260104202A1 (de) |
| EP (3) | EP4623259A1 (de) |
| CN (1) | CN120530296A (de) |
| CA (2) | CA3225457A1 (de) |
| ES (2) | ES3044038T3 (de) |
| HR (2) | HRP20251514T1 (de) |
| HU (1) | HUE073069T2 (de) |
| PL (2) | PL4397931T3 (de) |
| WO (3) | WO2024146703A1 (de) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178966A (zh) * | 2017-07-03 | 2017-09-19 | 阜南县铭钰柳木工艺品有限公司 | 半成品柳编篮中期烘干方法 |
| CN109163547A (zh) * | 2018-08-24 | 2019-01-08 | 湖州市南浔三亚家私有限公司 | 杨树木单板的干燥方法 |
| WO2020127026A1 (fr) | 2018-12-19 | 2020-06-25 | Ways Sas | Procédé de séchage thermique du bois sous atmosphère de co2, installation de séchage pour la mise en oeuvre dudit procédé et produit obtenu |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB849613A (en) | 1958-07-11 | 1960-09-28 | Gordon Albert Gray | An improved machine for drying copra |
| CA2732034C (fr) * | 2011-02-14 | 2013-04-30 | Yves Lacoursiere | System de sechage de bois sur rails a ventilation en ligne |
| CA2809873A1 (fr) * | 2013-03-25 | 2013-05-29 | Yves Lacoursiere | Systeme pour secher des morceaux de bois |
| CN110715541B (zh) * | 2019-10-14 | 2024-05-28 | 南京航空航天大学 | 基于超临界二氧化碳储能的高温农产品干燥设备及方法 |
| CN114034167A (zh) * | 2021-11-30 | 2022-02-11 | 罗洋 | 一种超临界二氧化碳干燥装置 |
-
2023
- 2023-09-11 US US19/145,609 patent/US20260104202A1/en active Pending
- 2023-09-11 EP EP23768836.1A patent/EP4623259A1/de active Pending
- 2023-09-11 WO PCT/EP2023/074864 patent/WO2024146703A1/fr not_active Ceased
- 2023-09-11 CN CN202380090520.3A patent/CN120530296A/zh active Pending
-
2024
- 2024-01-04 ES ES24150447T patent/ES3044038T3/es active Active
- 2024-01-04 EP EP24150447.1A patent/EP4397930B1/de active Active
- 2024-01-04 CA CA3225457A patent/CA3225457A1/fr active Pending
- 2024-01-04 PL PL24150450.5T patent/PL4397931T3/pl unknown
- 2024-01-04 WO PCT/EP2024/050163 patent/WO2024146925A1/fr not_active Ceased
- 2024-01-04 HU HUE24150447A patent/HUE073069T2/hu unknown
- 2024-01-04 HR HRP20251514TT patent/HRP20251514T1/hr unknown
- 2024-01-04 HR HRP20251228TT patent/HRP20251228T1/hr unknown
- 2024-01-04 US US18/404,698 patent/US20240240863A1/en active Pending
- 2024-01-04 CA CA3225462A patent/CA3225462A1/fr active Pending
- 2024-01-04 PL PL24150447.1T patent/PL4397930T3/pl unknown
- 2024-01-04 EP EP24150450.5A patent/EP4397931B1/de active Active
- 2024-01-04 US US18/404,732 patent/US20240230229A1/en active Pending
- 2024-01-04 ES ES24150450T patent/ES3055837T3/es active Active
- 2024-01-04 WO PCT/EP2024/050171 patent/WO2024146929A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178966A (zh) * | 2017-07-03 | 2017-09-19 | 阜南县铭钰柳木工艺品有限公司 | 半成品柳编篮中期烘干方法 |
| CN109163547A (zh) * | 2018-08-24 | 2019-01-08 | 湖州市南浔三亚家私有限公司 | 杨树木单板的干燥方法 |
| WO2020127026A1 (fr) | 2018-12-19 | 2020-06-25 | Ways Sas | Procédé de séchage thermique du bois sous atmosphère de co2, installation de séchage pour la mise en oeuvre dudit procédé et produit obtenu |
| FR3090835A1 (fr) * | 2018-12-19 | 2020-06-26 | Ways | [Procédé de séchage thermique de bois sous atmosphère CO2, installation de séchage pour la mise en œuvre dudit procédé et produit obtenu] |
Also Published As
| Publication number | Publication date |
|---|---|
| PL4397930T3 (pl) | 2025-11-24 |
| HRP20251514T1 (hr) | 2026-01-02 |
| ES3044038T3 (en) | 2025-11-26 |
| US20240240863A1 (en) | 2024-07-18 |
| US20260104202A1 (en) | 2026-04-16 |
| CA3225462A1 (fr) | 2024-07-05 |
| EP4397930B1 (de) | 2025-07-09 |
| EP4397931C0 (de) | 2025-09-10 |
| US20240230229A1 (en) | 2024-07-11 |
| EP4397931B1 (de) | 2025-09-10 |
| EP4397930C0 (de) | 2025-07-09 |
| EP4623259A1 (de) | 2025-10-01 |
| CN120530296A (zh) | 2025-08-22 |
| EP4397930A1 (de) | 2024-07-10 |
| WO2024146703A1 (fr) | 2024-07-11 |
| PL4397931T3 (pl) | 2026-02-02 |
| ES3055837T3 (en) | 2026-02-16 |
| HRP20251228T1 (hr) | 2025-12-05 |
| WO2024146925A1 (fr) | 2024-07-11 |
| CA3225457A1 (fr) | 2024-07-05 |
| HUE073069T2 (hu) | 2025-12-28 |
| WO2024146929A1 (fr) | 2024-07-11 |
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