HYDROCARBON ADSORBENT AND HYDROCARBON ADSORPTION METHOD

To provide an adsorbent characterized by having a large amount of hydrocarbon adsorption from a gas containing hydrocarbons different in carbon numbers.SOLUTION: A hydrocarbon adsorbent has a specific powder X-ray diffraction pattern and contains zeolite having following characteristics. In the zeol...

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Hauptverfasser:	YOSHIOKA MASATO, NAKAO KEITA, MIHASHI AKIRA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	To provide an adsorbent characterized by having a large amount of hydrocarbon adsorption from a gas containing hydrocarbons different in carbon numbers.SOLUTION: A hydrocarbon adsorbent has a specific powder X-ray diffraction pattern and contains zeolite having following characteristics. In the zeolite, a molar ratio of silica to alumina is 5 or more and 200 or less; and the zeolite has a BET specific surface of 300 m/g or more and 700 m/g or less.SELECTED DRAWING: Figure 1 【課題】炭素数の異なる炭化水素を含むガスからの炭化水素吸着量が大きい吸着剤を提供する。【解決手段】特定の粉末Ｘ線回折パターンを有し、以下の特徴を持つゼオライト、を含む炭化水素吸着剤。・ゼオライトのアルミナに対するシリカのモル比が５以上２００以下である。・ゼオライトのＢＥＴ比表面積が３００ｍ２／ｇ以上７００ｍ２／ｇ以下である。【選択図】図１