Flammable gas concentration device and flammable gas concentration method

A flammable gas concentration device comprises an adsorption tower filled by an adsorbent for adsorbing a flammable gas. Raw gas containing air and a flammable gas is fed to the adsorption tower via a feeding path and an exhaust gas in the raw gas which has not been adsorbed to the adsorbent is disc...

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Bibliographische Detailangaben
Hauptverfasser:	SHITO ETSUO, SEKI KENJI, HIRAO KATSUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG] GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING
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Beschreibung
Zusammenfassung:	A flammable gas concentration device comprises an adsorption tower filled by an adsorbent for adsorbing a flammable gas. Raw gas containing air and a flammable gas is fed to the adsorption tower via a feeding path and an exhaust gas in the raw gas which has not been adsorbed to the adsorbent is discharged to an outside of the adsorption tower via a discharge path. Pressure in the adsorption tower is reduced lower than an atmospheric pressure, and the flammable gas adsorbed by the adsorbent is desorbed and collected through a collection path. A flammable gas adsorption step of feeding the raw gas to the adsorption tower and discharging the exhaust gas from the adsorption tower, and a flammable gas desorption step of collecting the desorbed flammable gas are sequentially executed.