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JP2008296179A Apparatus and method for separating and recovering voc using pressurized carbon dioxide 审中-公开
标题翻译：使用加压二氧化碳分离和回收VOC的装置和方法
公开(公告)号：JP2008296179A
公开(公告)日：2008-12-11
申请号：JP2007147360
申请日：2007-06-01
申请人： Ikutoku Gakuen Kanagawa Koka Daigaku , Tama Tlo Kk , タマティーエルオー株式会社 , 学校法人幾徳学園神奈川工科大学
发明人： KOJIMA HIROMITSU , OBA TAKEYASU , ISHIDA MASARU
IPC分类号： C02F1/26 , B01D11/00
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for separating and recovering VOC, which can realize complete treatment not involving the occurrence of secondary waste after the separation and recovery of VOC, and a method for separating and recovering the VOC.
SOLUTION: VOC contained in contaminated underground water is extracted with supercritical carbon dioxide. Thereafter, the step of extracting VOC using carbon dioxide and water alternately as an extraction medium is repeated under two conditions which have rendered the equilibrium constant of an aqueous VOC solution-pressurized carbon dioxide system significantly different. The repetition of this step can realize the concentration of VOC corresponding to the equilibrium constant difference, and, finally, a substantially 100% VOC phase can be separated. Accordingly, VOC can be recovered at low cost without use of any additional constitution such as an adsorbent.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：提供一种用于分离和回收挥发性有机化合物的装置，其可以实现在分离和回收挥发性有机化合物之后不涉及二次废物的完全处理，以及分离和回收挥发性有机化合物的方法。
解决方案：用超临界二氧化碳提取含污染地下水中的VOC。此后，在使VOC水溶液 - 加压二氧化碳体系的平衡常数显着不同的两个条件下重复使用二氧化碳和水交替提取VOC作为萃取介质的步骤。该步骤的重复可以实现对应于平衡恒定差的VOC浓度，最后可以分离基本上100％的VOC相。因此，可以以低成本回收VOC，而不使用任何附加结构如吸附剂。版权所有（C）2009，JPO＆INPIT

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