JP7174205B1 - 空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム - Google Patents
空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
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- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
- C01B32/55—Solidifying
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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
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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
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- B01D53/06—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 moving adsorbents, e.g. rotating beds
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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Abstract
Description
日本国内では、製品二酸化炭素ガスは2021年一年間で110万トンが販売され、用途のトップは溶接用の33%で、第二位はドライアイス用の32%であるとされている。
ドライアイス製造の効率化では、特許文献7に貯蔵タンクの液体二酸化炭素からドライアイスを製造する装置について、ドライアイスの収率を高める方法が開示されている。特許文献8は液化二酸化炭素を用いてドライアイスを製造する装置において、凝華(ドライアイス化)しなかった二酸化炭素ガスを回収液化する装置が開示されている。
本発明は前記湿式TSA法においてさらに収着材の熱酸化劣化の防止と回収率と回収濃度の向上と省エネ性をたかめるように創意構成した。
最初に二酸化炭素ガス分離濃縮装置について図2により細部説明する。二酸化炭素ガスの収着可能なロータ1はロータ駆動モータ2でベルト3により駆動回転させる。大型であればチェーン駆動も選択できる。ロータの処理ゾーン4に送風機7によって処理空気を導入すると湿った状態のロータは気化冷却されながら二酸化炭素ガスが収着され、同時に収着熱も冷却除去される。
2 ロータ駆動モータ
3 ロータ駆動ベルト
4 処理ゾーン
5-1 脱着ゾーン
5-2 回収ゾーン1
5-3 回収ゾーン2
6 パージゾーン
6-1 脱着ガスパージゾーン
6―2 処理空気パージゾーン
7 処理空気送風機
8 蒸気発生装置
9 クーリングタワー
10-1ガス冷却コイル1
10-2ガス冷却コイル2
10-3ガス冷却コイル3
11-1ガス圧縮機1
11-2ガス圧縮機2
12 ハニカムロータ回転式吸着除湿機
12-1再生ゾーン
12-2処理ゾーン
13 吸着式2塔除湿機
14 冷凍機
15 二酸化炭素ガス液化装置
16 液化二酸化炭素精製タンク
17 ドライアイス製造装置
18 循環パージポンプ
Claims (4)
- システム中の二酸化炭素ガスを圧縮、冷却、液化する装置の排熱を回収して蒸気を発生させる蒸気発生ヒートポンプ装置と、空気中の二酸化炭素ガスを分離濃縮して前記蒸気を導入して飽和蒸気の凝縮熱で脱着回収する二酸化炭素ガス分離濃縮装置と、分離濃縮装置で回収された飽和蒸気と二酸化炭素ガスの混合ガスを冷却除湿する装置と、冷却除湿した二酸化炭素ガスを液化するために圧縮する一段以上の圧縮装置と、圧縮された二酸化炭素ガスを除湿する吸着式除湿装置と、除湿された二酸化炭素ガスを液化温度まで冷却するガス液化装置と冷凍機と、液化した二酸化炭素ガスを導入して液化した二酸化炭素を貯留し、液化しなかったガスを抜く液化二酸化炭素精製タンクと、液化二酸化炭素精製タンクから液化二酸化炭素を送り大気圧下に放出してその気化潜熱で炭酸ガスが冷却凝華されてドライアイスを生成するドライアイス製造装置と、ドライアイス生成時の未凝華ガスを前記圧縮装置に戻して回収するドライアイス製造システムにおいて、二酸化炭素ガス分離濃縮装置が、二酸化炭素ガスの収着能力を有するロータを、少なくとも回転方向の順に、処理ゾーンと、パージゾーンと脱着ゾーンとを有する夫々シールされたケーシング内に収納回転させ、処理ゾーンにてロータの湿った状態で空気を導入して気化冷却しながら二酸化炭素ガスを吸着させ、パージゾーンでは前記液化二酸化炭素精製タンクから抜いた未液化ガスを導入させてロータ空隙に含まれる空気をパージ排気し、脱着ゾーンでは蒸気発生ヒートポンプ装置で発生させた100℃前後の飽和蒸気を導入し、蒸気の凝縮熱により二酸化炭素ガスを脱着させて濃縮回収する湿式TSA二酸化炭素ガス分離濃縮装置である、空調給気も可能な空気中二酸化炭素をガス源とする、ドライアイス製造システム。
- 湿式TSA二酸化炭素ガス分離濃縮装置が二酸化炭素ガスの吸着能力を有するロータを回転方向の順に、処理ゾーンと、パージゾーンと、一段以上の複数の回収ゾーンと、脱着ゾーンを有する夫々シールされたケーシング内に収納回転させる湿式TSA二酸化炭素ガス分離濃縮装置であって、処理ゾーンはロータの湿った状態で空気を導入して気化冷却しながら二酸化炭素ガスを収着し、パージゾーンは液化二酸化炭素精製タンクからの未液化ガスを導入してロータ空隙に含まれる空気を排気し、脱着ゾーンは100℃前後の飽和蒸気を導入して蒸気の凝縮熱により高濃度の二酸化炭素ガスを脱着させて、回収ゾーンは前記脱着ガスを回転方向前段側に向けて一段以上の回収ゾーンを順次通過させて回収する湿式TSA二酸化炭素ガス分離濃縮装置である請求項1に記載の、空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム。
- 湿式TSA二酸化炭素ガス分離濃縮装置の処理ゾーンを通過した空気を冷却コイルで冷却除湿して空調給気として利用し、冷却コイルのドレイン水を回収して飽和蒸気発生装置の給水として利用する請求項1に記載の、空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム。
- 吸着式除湿装置が、処理ゾーンと再生ゾーンを有するハニカムロータ除湿機の再生ゾーンに、ガス圧縮装置からの圧縮高温ガスを導入してロータの吸着水を脱着し、その出口ガスを冷却コイルに通して冷却・除湿して、前記処理ゾーンに導入して吸着除湿する除湿装置である、請求項1に記載の空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム。
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JP2022084014A JP7174205B1 (ja) | 2022-05-23 | 2022-05-23 | 空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム |
DE112022002680.4T DE112022002680T5 (de) | 2022-05-23 | 2022-12-22 | Trockeneisherstellungssystem, bei dem auch eine Luftzufuhr zur Klimatisierung möglich ist und bei dem Kohlendioxid in der Luft zu einer Gasquelle gemacht wird |
PCT/JP2022/047374 WO2023228457A1 (ja) | 2022-05-23 | 2022-12-22 | 空調給気も可能な空気中二酸化炭素をガス源とするドライアイス製造システム |
CN202280067221.3A CN118382598A (zh) | 2022-05-23 | 2022-12-22 | 既能够提供空调送风功能也能够以空气中的二氧化碳为气源的干冰生产系统 |
CA3227971A CA3227971A1 (en) | 2022-05-23 | 2022-12-22 | Dry ice production system using carbon dioxide in air as gas source that can also be supplied by air conditioning |
KR1020247009279A KR102670625B1 (ko) | 2022-05-23 | 2022-12-22 | 공조 급기도 가능한 공기 중 이산화탄소를 가스원으로 하는 드라이아이스 제조 시스템 |
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US20210310927A1 (en) * | 2018-08-10 | 2021-10-07 | Industry-Academic Cooperation Foundation, Yonsei University | Real time continuous measurement apparatus for airborne microbial |
WO2024090105A1 (ja) * | 2022-10-26 | 2024-05-02 | 三菱重工業株式会社 | 二酸化炭素回収システム及び二酸化炭素回収方法 |
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