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1. 发明公开

EP0256096A4 PRIMARY REFRIGERANT EUTECTIC FREEZING (PREUF) PROCESS. 失效
标题翻译：与主冷却剂共晶冷冻机系统内。
公开(公告)号：EP0256096A4
公开(公告)日：1988-12-01
申请号：EP87901252
申请日：1987-01-30
申请人： CHENG CHEN-YEN , CHENG WU CHING , CHENG WU CHEH
发明人： CHENG CHEN-YEN
IPC分类号： B01D9/04 , B01D9/00 , B01D9/02 , C02F1/22 , F25J5/00
CPC分类号： C02F1/22 , B01D9/0013 , B01D9/0036
摘要： A process of separating a multi-component liquid mixture containing n major components by forming crystals of m components, denoted as m crystallizing components, in a crystallization zone, denoted as a first processing zone, having k crystallization sub-zones, the value of m being equal to or greater than 2 and equal to or less than n, the value of k being equal to or greater than 1 and equal to or less than m, comprising a first step of crystallizing the m components in the k crystallization sub-zones to form a first condensed mass and a second step of vaporizing a mass of the volatile component(s) from the liquid mixture to form a first vapor in each sub-zone under a first pressure that is lower than the eutectic pressure defined as the equilibrium pressure at which the m solid phases and the liquid mixture co-exist with a vapor phase containing the volatile component(s), wherein the said first step and the second step are conducted simultaneously so that at least a major fraction of the heat released in Step 1 operation is removed by the Step 2 operation in each sub-zone.

2. 发明公开

EP0256096A1 PRIMARY REFRIGERANT EUTECTIC FREEZING (PREUF) PROCESS AND APPARATUSES FOR USE THEREIN 失效
标题翻译：与主冷却剂共晶冷冻机系统内。
公开(公告)号：EP0256096A1
公开(公告)日：1988-02-24
申请号：EP87901252.0
申请日：1987-01-30
申请人： Cheng, Chen-Yen , CHENG, Wu-Ching , CHENG, Wu-Cheh
发明人： Cheng, Chen-Yen , CHENG, Wu-Ching , CHENG, Wu-Cheh
IPC分类号： B01D9 , C02F1
CPC分类号： C02F1/22 , B01D9/0013 , B01D9/0036
摘要： A process of separating a multi-component liquid mixture containing n major components by forming crystals of m components, denoted as m crystallizing components, in a crystallization zone, denoted as a first processing zone, having k crystallization sub-zones, the value of m being equal to or greater than 2 and equal to or less than n, the value of k being equal to or greater than 1 and equal to or less than m, comprising a first step of crystallizing the m components in the k crystallization sub-zones to form a first condensed mass and a second step of vaporizing a mass of the volatile component(s) from the liquid mixture to form a first vapor in each sub-zone under a first pressure that is lower than the eutectic pressure defined as the equilibrium pressure at which the m solid phases and the liquid mixture co-exist with a vapor phase containing the volatile component(s), wherein the said first step and the second step are conducted simultaneously so that at least a major fraction of the heat released in Step 1 operation is removed by the Step 2 operation in each sub-zone.

3. 发明专利

AU6895387A PRIMARY REFRIGERANT EUTECTIC FREEZING (PREUF) PROCESS AND APPARATUSES FOR USE THEREIN 未知
公开(公告)号：AU6895387A
公开(公告)日：1987-08-25
申请号：AU6895387
申请日：1987-01-30
申请人： CHENG CHEN YEN , CHENG WU CHING , CHENG WU CHEH
发明人： CHEN-YEN CHENG , WU-CHING CHENG , WU-CHEH CHENG
IPC分类号： B01D9/04 , B01D9/00 , B01D9/02 , C02F1/22 , F25J5/00
摘要： A process of separating a multi-component liquid mixture containing n major components by forming crystals of m components, denoted as m crystallizing components, in a crystallization zone, denoted as a first processing zone, having k crystallization sub-zones, the value of m being equal to or greater than 2 and equal to or less than n, the value of k being equal to or greater than 1 and equal to or less than m, comprising a first step of crystallizing the m components in the k crystallization sub-zones to form a first condensed mass and a second step of vaporizing a mass of the volatile component(s) from the liquid mixture to form a first vapor in each sub-zone under a first pressure that is lower than the eutectic pressure defined as the equilibrium pressure at which the m solid phases and the liquid mixture co-exist with a vapor phase containing the volatile component(s), wherein the said first step and the second step are conducted simultaneously so that at least a major fraction of the heat released in Step 1 operation is removed by the Step 2 operation in each sub-zone.

4. 发明申请

WO1987004778A1 PRIMARY REFRIGERANT EUTECTIC FREEZING (PREUF) PROCESS AND APPARATUSES FOR USE THEREIN 审中-公开
标题翻译：主要制冷机保护（预制）工艺及其使用的装置
公开(公告)号：WO1987004778A1
公开(公告)日：1987-08-13
申请号：PCT/US1987000205
申请日：1987-01-30
申请人： CHENG, Chen-Yen , CHENG, Wu-Ching , CHENG, Wu-Cheh
IPC分类号： F25J05/00
CPC分类号： C02F1/22 , B01D9/0013 , B01D9/0036
摘要： The primary refrigerant eutectic freezing (PREUF) process is designed to separate mixtures containing at least one volatile component and two or more crystal-forming components (1). Heat is removed from a eutectic mixture at near its eutectic temperature by inducing vaporization of a portion of the volatile component(s) at a pressure below the vapor pressure of the eutectic mixture at its eutectic temperature (2). The vapor is liquefied by a two-step process (a) mixed condensation/desublimation and (b) desublimate-melting (3). Co-crystallization of different components in the same zone of the freezer (4) or selective crystallization of different components in different sub-zones of the freezer (5) are possible with several different flow schematics possible (6). Separation of crystals of different components formed in co-crystallization in the same liquid pool followed by separation of individual component crystals from adhering liquids give purified products (7). Separation of crystals of different components is not required where selective crystallization is effective (8).
摘要翻译：初级制冷剂共晶冷冻（PREUF）工艺被设计成分离含有至少一种挥发性组分和两种或多种结晶形成组分（1）的混合物。通过在低于共晶混合物的共晶温度（2）的低于蒸汽压的压力下引发一部分挥发性组分的蒸发，在共晶温度附近从共晶混合物中除去热。蒸汽通过两步法（a）混合冷凝/分离和（b）稀释熔融（3）液化。冷冻机（4）的同一区域中不同组分的共结晶或冷冻机（5）的不同子区域中不同组分的选择性结晶是可能的，可能有几种不同的流程原理图（6）。在相同的液体池中在共结晶中形成的不同组分的晶体分离，然后将单独的组分晶体从粘附液体中分离，得到纯化的产物（7）。当选择性结晶有效时，不需要分离不同组分的晶体（8）。

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