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1. 发明授权

US5153015A Decaffeinating coffee and tea 失效
标题翻译：减肥咖啡和茶
公开(公告)号：US5153015A
公开(公告)日：1992-10-06
申请号：US815895
申请日：1991-12-31
申请人： Peter Theissing , Peter Saamer , Jorg-Peter Korner
发明人： Peter Theissing , Peter Saamer , Jorg-Peter Korner
IPC分类号： A23F3/36 , A23F5/20 , B01D11/02 , C07D473/12 , C07G99/00 , C11B9/02
CPC分类号： B01D11/0203 , A23F3/366 , A23F5/206 , C07D473/12
摘要： A process and apparatus for extracting ingredient substances from natural products by means of a pressurized fluid, particularly for decaffeinating tea leaves by means of carbon dioxide, wherein the ingredient substances are bound by an adsorbent, preferably activated carbon. The fluid is conducted through a product layer, the thickness of which in flow direction is small in comparision with that transversely of the flow direction and the fluid is passed through the product layer with changing, especially increasing, velocity. The apparatus includes a cylindrical high-pressure vessel with annular cylindrical baskets for accommodating the natural product and/or the adsorbent, and the gas flows from a cylindrical outer range to a cylindrical inner range. The time required for the treatment of leafy natural product is reduced, the flow paths of the fluid are shortened, thus diminishing the risk of clogging, and the fluid flow velocity is reduced.
摘要翻译：一种通过加压流体，特别是通过二氧化碳去除咖啡因的茶叶从天然产物中提取成分物质的方法和装置，其中成分物质被吸附剂，优选活性炭结合。流体通过产品层传导，其厚度与流动方向的横向相比在流动方向上较小，并且流体以改变，特别是增加的速度通过产品层。该装置包括一圆柱形高压容器，其具有用于容纳天然产物和/或吸附剂的环形圆柱形篮，并且气体从圆柱形外部范围流动到圆柱形内部范围。减少叶片天然产物处理所需的时间，流体的流动路径缩短，从而降低堵塞的风险，降低流体流动速度。

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