Title:
DEVICE AND METHOD FOR PURIFYING GAS
Document Type and Number:
WIPO Patent Application WO/2010/038684
Kind Code:
A1
Abstract:
A device and method for purifying a gas are provided in which a chemical substance is inhibited from condensing on the surface of an adsorbent falling gravitationally, whereby the flow of the adsorbent is stabilized and the adsorbent is satisfactorily regenerated. Also provided are the gas purifier and gas purification method in which a chemical substance, e.g., ethyl acetate, is inhibited from decomposing and the chemical substance having a high purity can be recovered.
The gas purifier (1) has: an adsorption part (A) in which a gas (G) containing a chemical substance is brought into contact with an adsorbent (K) to adsorb the chemical substance onto the adsorbent (K); and a desorption part (D) in which a non-condensable gas (Ga) is brought into countercurrent contact with the adsorbent (K) which is descending via the adsorption part (A) while forming a moving layer, whereby the chemical substance is desorbed from the adsorbent (K). The gas purifier (1) further has an adsorbent-temperature control part (C) disposed between the adsorption part (A) and the desorption part (D) and for keeping the descending adsorbent (K) at a temperature between the dew point of the chemical-substance-containing non-condensable gas (Ga) which has passed through the desorption part (D) and [(the dew point) + 50ºC].
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Inventors:
HIRUTA Kazuo (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
蛭田一雄 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
WATANABE Yukio (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
渡辺幸夫 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
SATO Katsushi (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
蛭田一雄 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
WATANABE Yukio (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
渡辺幸夫 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
SATO Katsushi (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
Application Number:
JP2009/066725
Publication Date:
April 08, 2010
Filing Date:
September 28, 2009
Export Citation:
Assignee:
KUREHA ENGINEERING CO., LTD. (135 Ochiai, Nishiki-machi Iwaki-sh, Fukushima 32, 〒9748232, JP)
株式会社クレハエンジニアリング (〒32 福島県いわき市錦町落合１３５番地 Fukushima, 〒9748232, JP)
HIRUTA Kazuo (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
蛭田一雄 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
WATANABE Yukio (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
渡辺幸夫 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
株式会社クレハエンジニアリング (〒32 福島県いわき市錦町落合１３５番地 Fukushima, 〒9748232, JP)
HIRUTA Kazuo (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
蛭田一雄 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
WATANABE Yukio (135, Ochiai, Nishiki-machi, Iwaki-sh, Fukushima 32, 〒9748232, JP)
渡辺幸夫 (〒32 福島県いわき市錦町落合１３５番地 株式会社クレハエンジニアリング内 Fukushima, 〒9748232, JP)
International Classes:
B01D53/44; B01D53/08; B01D53/81
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (Kamiya-cho MT Bldg. 19F, 3-20 Toranomon 4-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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