CN112619627A - Silica gel adsorbent regeneration device and method - Google Patents
Silica gel adsorbent regeneration device and method Download PDFInfo
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- CN112619627A CN112619627A CN202011398455.5A CN202011398455A CN112619627A CN 112619627 A CN112619627 A CN 112619627A CN 202011398455 A CN202011398455 A CN 202011398455A CN 112619627 A CN112619627 A CN 112619627A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000000741 silica gel Substances 0.000 title claims abstract description 80
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 80
- 239000003463 adsorbent Substances 0.000 title claims abstract description 31
- 230000008929 regeneration Effects 0.000 title claims abstract description 12
- 238000011069 regeneration method Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 84
- 238000001354 calcination Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 90
- 239000003345 natural gas Substances 0.000 claims description 45
- 230000001172 regenerating effect Effects 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000013213 extrapolation Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 26
- 239000000126 substance Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005457 optimization Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003712 decolorant Substances 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- -1 firstly Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- 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
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Drying Of Gases (AREA)
- Silicon Compounds (AREA)
Abstract
The invention relates to a silica gel adsorbent regeneration device and a method, which comprises a device main body, wherein the upper end of the device main body is connected with a motor, the upper end of the device main body is provided with a silica gel adsorbent feeding port and a smoke exhaust port, the silica gel adsorbent feeding port and the smoke exhaust port are symmetrically distributed on two sides of the motor, the lower end of the device main body is provided with a discharge port, the device main body is internally provided with a drying part and a calcining part, the calcining part is positioned below the drying part, the inner wall of the device main body is connected with a plurality of small drying discs and a plurality of large drying discs, the small drying discs and the large drying discs are alternately distributed up and down, an output shaft of the motor is connected with a middle rotating shaft, and the middle rotating shaft is connected with a plurality of first rake arms matched with the small drying discs and a plurality of second rake arms matched with the large. The silica gel adsorbent regeneration device and the method integrate the drying and the calcining of the silica gel containing oil and water in one device, and have the advantages of high energy utilization rate, low energy consumption and good production effect.
Description
Technical Field
The invention belongs to the technical field of silica gel regeneration, and particularly relates to a silica gel adsorbent regeneration device and method.
Background
The silica gel has the alias: the silicic acid gel is a high-activity adsorption material and belongs to an amorphous substance. The main component of the silica gel is silicon dioxide, and the silica gel is stable in chemical property and does not burn. Inorganic silica gel is a high-activity adsorbing material, and is usually prepared by reacting sodium silicate with sulfuric acid, and performing a series of post-treatment processes such as aging, acid soaking and the like. Silica gel is an amorphous substance and has a chemical molecular formula of mSiO2.nH 2O. Insoluble in water and any solvent, non-toxic, odorless, stable in chemical property, and non-reactive with any substance except strong alkali and hydrofluoric acid. Different types of silica gel form different microporous structures due to different manufacturing methods. The chemical composition and physical structure of silica gel determine that the silica gel has the characteristics of difficult substitution of other similar materials: the adsorbent has high adsorption performance, good thermal stability, stable chemical property, higher mechanical strength and the like, and is used as a drying agent, a humidity regulator, a deodorant and the like for families; the catalyst is industrially used as an oil hydrocarbon decolorant, a catalyst carrier, a pressure swing adsorbent and the like; separating and purifying agent for fine chemical industry, beer stabilizer, paint thickener, toothpaste friction agent, delustering agent, etc.
Silica gel is a common adsorbent in a lubricating oil regeneration technology, after the silica gel is used, a large amount of oil can be contained in the silica gel, the properties of the silica gel are stable, the oil contained in the silica gel can be burnt and removed through modes such as calcination, but the oil content in the oil-containing silica gel is high, the oil-containing silica gel can be directly processed in a calcination mode, so that the large amount of oil cannot be recycled, the resource waste is large, boiling point stripping is adopted to extract most of the oil in the oil-containing silica gel, the oil-containing silica gel is obtained, the oil content in the silica gel is greatly reduced, the loss of oil resources can be reduced when the silica gel is dried and calcined, but the drying and calcination of the oil-containing silica gel and the water are separately carried out at present, the energy consumption is large, and the preparation cost of a device is high.
Disclosure of Invention
The invention aims to solve the problems and provide a silica gel adsorbent regeneration device and method which are simple in structure and reasonable in design.
The invention realizes the purpose through the following technical scheme:
a silica gel adsorbent regenerating unit, includes the device main part, the upper end of device main part is connected with the motor, and the upper end of device main part is equipped with silica gel adsorbent and throws into mouth and flue gas discharge port, and silica gel adsorbent throws into mouth and flue gas discharge port symmetric distribution in the both sides of motor, the lower extreme of device main part is equipped with the discharge gate, be equipped with drying portion and calcination portion in the device main part, calcination portion is located the below of drying portion, be connected with a plurality of little drying tray and a plurality of big drying tray on the inner wall of device main part, a plurality of little drying tray and a plurality of big drying tray are from top to bottom alternate distribution, be connected with the pivot on the output shaft of motor, be connected with a plurality of and little drying tray matched with first harrow arm and with big drying tray matched with second harrow arm on the pivot, the position that the outer wall of device main part is close to the bottom is connected with, and the natural gas combustor is connected with an air blower.
As a further optimized solution of the present invention, the first rake arm is connected to a plurality of extrapolation rake blades, and the second rake arm is connected to a plurality of interpolation rake blades.
As a further optimization scheme of the natural gas burner, a hot air input pipeline is arranged between the natural gas burner and the device main body, the natural gas burner is connected with the natural gas input pipeline, and a valve is arranged on the natural gas input pipeline.
As a further optimization scheme of the invention, the small drying disk is connected with the device main body through a plurality of connecting rods, a blanking gap is arranged between the small drying disk and the device main body, and the middle rotating shaft penetrates through the small drying disk.
As a further optimization scheme of the invention, the middle part of the large drying disc is provided with a blanking hole, and the middle rotating shaft penetrates through the blanking hole.
A method for regenerating silica gel adsorbent by adopting the device comprises the following steps:
s1, introducing natural gas and air provided by an air blower into a natural gas combustor, wherein the natural gas combustor introduces the heated air from the bottom of a device main body and raises the temperature of a calcining part in the device main body to 500-600 degrees;
s2, putting the silica gel containing oil and water into the device main body from a silica gel adsorbent feeding port, firstly dropping the silica gel containing oil and water on a drying disc in a drying part, fully drying the silica gel containing oil and water through the drying disc and hot air rushing from the bottom of the device main body, and dropping the silica gel containing oil and water after drying and dewatering on the drying disc in a calcining part;
and S3, after the oily silica gel falls on a drying disc in the calcining part, burning oil in the silica gel and radiating heat, and discharging the calcined and deoiled silica gel from a discharge port.
As a further optimized scheme of the present invention, after the oily silica gel is combusted in the calcination part to dissipate heat in step S3, the natural gas input amount in the natural gas combustor is controlled to gradually decrease until only air is input into the natural gas combustor.
The invention has the beneficial effects that:
1) according to the invention, drying and calcining are integrated in one device, the device is divided into a drying part and a calcining part, the drying part and the calcining part are both provided with drying discs, silica gel is fully contacted with the high-temperature drying disc and fully dried and calcined by hot air on the bottom bump, water and oil in the silica gel can be effectively removed, the manufacturing cost of the device is low, and the processing effect is good;
2) according to the invention, natural gas and air are introduced into the natural gas burner, the natural gas is burned in the natural gas burner, high-temperature air is finally introduced into the device main body, the temperature in the device main body is raised through the high-temperature air, so that silica gel is contacted with the high-temperature drying disc to achieve the drying and calcining effects, when the oily silica gel is burned in the calcining part, a large amount of heat energy can be emitted, at the moment, the input amount of external natural gas can be gradually reduced until only the air is introduced into the device main body, and the energy consumption is greatly reduced;
3) the invention has simple structure, high stability, reasonable design and convenient realization.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a device main body; 101. a silica gel adsorbent inlet; 102. a flue gas outlet; 103. a motor; 104. a middle rotating shaft; 105. a small drying tray; 106. a first rake arm; 107. a large drying tray; 108. a second rake arm; 109. a connecting rod; 110. a discharge port; 111. a calcination section; 112. a drying section; 2. a blower; 3. a natural gas burner; 301. a hot air input pipeline; 302. and (4) inputting natural gas into a pipeline.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in figure 1, a silica gel adsorbent regenerating device comprises a device body 1, wherein the upper end of the device body 1 is connected with a motor 103, the upper end of the device body 1 is provided with a silica gel adsorbent feeding port 101 and a flue gas exhaust port 102, the silica gel adsorbent feeding port 101 and the flue gas exhaust port 102 are symmetrically distributed on two sides of the motor 103, the lower end of the device body 1 is provided with a discharge port 110, the device body 1 is internally provided with a drying part 112 and a calcining part 111, the calcining part 111 is positioned below the drying part 112, the inner wall of the device body 1 is connected with a plurality of small drying discs 105 and a plurality of large drying discs 107, the plurality of small drying discs 105 and the plurality of large drying discs 107 are alternately distributed up and down, an output shaft of the motor 103 is connected with a middle rotating shaft 104, the middle rotating shaft 104 is connected with a plurality of first rake arms 106 matched with the small drying discs 105 and a second rake arm 108 matched with, the outer wall of the device main body 1 is connected with a natural gas burner 3 at a position close to the bottom, and the natural gas burner 3 is connected with an air blower 2.
A plurality of outward-pushing type harrow blades are connected to the first harrow arm 106, a plurality of inward-pushing type harrow blades are connected to the second harrow arm 108, the small drying disk 105 and the device body 1 are connected through a plurality of connecting rods 109, a blanking gap is formed between the small drying disk 105 and the device body 1, and the middle rotating shaft 104 penetrates through the small drying disk 105; the middle part of the large drying tray 107 is provided with a blanking hole, the middle rotating shaft 104 penetrates through the blanking hole, the extrapolation rake blade can enable the silica gel falling on the small drying tray 105 to flow on the surface of the small drying tray 105 along an exponential spiral line, the silica gel on the small drying tray 105 is transferred to the outer edge and falls to the outer edge of the large drying tray 107 below from a blanking gap, the material on the large drying tray 107 moves to the center and falls into the next layer of small drying tray 105 from the middle blanking hole, the large drying tray and the small drying tray are alternately arranged up and down, and the material can continuously flow through all the drying trays from top to bottom;
through hot-blast input pipeline 301 between natural gas combustion machine 3 and the device main part 1, be connected with natural gas input pipeline 302 on the natural gas combustion machine 3, be equipped with the valve on the natural gas input pipeline 302.
When the device is used for circularly regenerating and manufacturing the silica gel containing oil and water, firstly, natural gas and air provided by the air blower 2 are introduced into the natural gas burner 3, the natural gas burner 3 introduces the heated air from the bottom of the device main body 1 and raises the temperature of the calcining part 111 in the device main body 1 to 500-600 degrees; then, the silica gel containing oil and water is put into the device main body 1 from the silica gel adsorbent inlet 101, the silica gel containing oil and water firstly falls on a drying tray in the drying part 112, the silica gel containing oil and water is fully dried by the drying tray and hot air rushing from the bottom of the device main body 1, and the silica gel containing oil after drying and dewatering falls on the drying tray in the calcining part 111; after the oil-containing silica gel falls on the drying tray in the calcining part 111, the oil in the silica gel starts to burn and heat dissipation, and the calcined and deoiled silica gel is discharged from the discharge port 110.
And after the oily silica gel is combusted and radiated in the calcining part 111, the input amount of the natural gas in the natural gas combustor 3 is controlled to be gradually reduced until only air is input into the natural gas combustor 3, so that the energy consumption can be effectively reduced, and when the temperature in the device main body 1 is reduced to some extent, a valve on the natural gas input pipeline 302 can be opened to appropriately supplement the natural gas, so as to ensure that the temperature in the device main body 1 is kept in a certain range.
The temperatures in the drying section 112 and the calcining section 111 in the apparatus main body 1 can be monitored in real time by temperature sensors.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. The utility model provides a silica gel adsorbent regenerating unit, includes device main part (1), its characterized in that: the device is characterized in that the upper end of the device body (1) is connected with a motor (103), the upper end of the device body (1) is provided with a silica gel adsorbent feeding port (101) and a smoke exhaust port (102), the silica gel adsorbent feeding port (101) and the smoke exhaust port (102) are symmetrically distributed on two sides of the motor (103), the lower end of the device body (1) is provided with a discharge port (110), a drying part (112) and a calcining part (111) are arranged in the device body (1), the calcining part (111) is positioned below the drying part (112), the inner wall of the device body (1) is connected with a plurality of small drying discs (105) and a plurality of large drying discs (107), the plurality of small drying discs (105) and the plurality of large drying discs (107) are alternately distributed up and down, a middle rotating shaft (104) is connected on an output shaft of the motor (103), and a plurality of first rake arms (106) matched with the small drying discs (105) and a plurality of first rake arms (106) matched with the large drying discs (107) are The second harrow arm (108), the position that the outer wall of device main part (1) is close to the bottom is connected with natural gas combustor (3), and is connected with air-blower (2) on the natural gas combustor (3).
2. The silica gel adsorbent regeneration device of claim 1, wherein: the first rake arm (106) is connected with a plurality of extrapolation rake blades, and the second rake arm (108) is connected with a plurality of interpolation rake blades.
3. The silica gel adsorbent regeneration device of claim 1, wherein: through hot-blast input pipeline (301) between natural gas combustion machine (3) and device main part (1), be connected with natural gas input pipeline (302) on natural gas combustion machine (3), be equipped with the valve on natural gas input pipeline (302).
4. The silica gel adsorbent regeneration device of claim 1, wherein: the small drying disc (105) is connected with the device main body (1) through a plurality of connecting rods (109), a blanking gap is formed between the small drying disc (105) and the device main body (1), and the middle rotating shaft (104) penetrates through the small drying disc (105).
5. The silica gel adsorbent regeneration device of claim 1, wherein: the middle part of the large drying disc (107) is provided with a blanking hole, and the middle rotating shaft (104) penetrates through the blanking hole.
6. A method for regenerating a silica gel adsorbent using the apparatus of any one of claims 1 to 5, comprising the steps of:
s1, introducing natural gas and air provided by an air blower (2) into a natural gas burner (3), wherein the natural gas burner (3) introduces the heated air from the bottom of a device main body (1) and raises the temperature of a calcining part (111) in the device main body (1) to 500-600 degrees;
s2, putting the silica gel containing oil and water into the device main body (1) from a silica gel adsorbent feeding port (101), firstly dropping the silica gel containing oil and water on a drying disc in a drying part (112), fully drying the silica gel containing oil and water through the drying disc and hot air rushing from the bottom of the device main body (1), and dropping the silica gel containing oil after drying and dewatering on the drying disc in a calcining part (111);
and S3, after the oil-containing silica gel falls on a drying disc in the calcining part (111), oil in the silica gel starts to burn and heat dissipation, and the calcined and deoiled silica gel is discharged from a discharge hole (110).
7. The method for regenerating a silica gel adsorbent as set forth in claim 6, wherein: and in the step S3, after the oily silica gel is combusted and radiated in the calcining part (111), controlling the input amount of the natural gas in the natural gas burner (3) to be gradually reduced until only air is input into the natural gas burner (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011398455.5A CN112619627A (en) | 2020-12-04 | 2020-12-04 | Silica gel adsorbent regeneration device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011398455.5A CN112619627A (en) | 2020-12-04 | 2020-12-04 | Silica gel adsorbent regeneration device and method |
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Cited By (3)
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| CN115739059A (en) * | 2022-12-29 | 2023-03-07 | 安徽国孚润滑油工业有限公司 | Desorption regenerating unit of useless silicone oil glue |
| RU2793047C1 (en) * | 2022-08-18 | 2023-03-28 | Общество с ограниченной ответственностью "Газпром трансгаз Чайковский" | Silica gel regeneration device |
| EP4450145A1 (en) * | 2023-04-19 | 2024-10-23 | Toyota Jidosha Kabushiki Kaisha | Recycling method for direct air capture device |
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Application publication date: 20210409 |