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21. 发明授权

US06708523B2 Process and apparatus for producing high-purity nitrogen by low-temperature fractionation of air 失效
$Process and apparatus for producing high-purity nitrogen by low-temperature fractionation of air$
标题翻译：通过空气低温分馏生产高纯度氮的工艺和设备
公开(公告)号：US06708523B2
公开(公告)日：2004-03-23
申请号：US10264261
申请日：2002-10-04
申请人： Stefan Lochner , Ralph Spöri , Michael Lauter
发明人： Stefan Lochner , Ralph Spöri , Michael Lauter
IPC分类号： F25J304
CPC分类号： F25J3/04412 , F25J3/04254 , F25J3/04309 , F25J3/0486 , F25J2200/54 , F25J2200/90 , F25J2210/42 , F25J2215/44 , F25J2220/42 , F25J2245/42 , Y10S62/912
摘要： The invention relates to a process and apparatus for producing nitrogen by low-temperature fractionation of air in a rectification system which has a high-pressure column (4) and a low-pressure column (5). Feed air (1, 3) is introduced into the high-pressure column (4). An oxygen-containing liquid fraction (11) is removed from the high-pressure column (4) and fed into the low-pressure column (5). Gaseous nitrogen (18) is extracted from the low-pressure column (5) above a mass transfer section (25), which has at least one theoretical or practical plate, and is at least partially condensed in a top condenser (17) by indirect heat exchange with a refrigerant (13). High-purity nitrogen is removed from the low-pressure column below the mass transfer section (25), and is obtained as a nitrogen product (26, 27, 30). The process and apparatus have a refrigeration-supply system, in which a refrigeration fluid (31) flows. At least part of the refrigeration fluid from the refrigeration-supply system is introduced into the low-pressure column (5) above the mass transfer section (25).
摘要翻译：本发明涉及一种在具有高压塔（4）和低压塔（5）的精馏系统中通过空气的低温分馏来生产氮的方法和装置。进料空气（1,3）被引入高压塔（4）。从高压塔（4）除去含氧液体馏分（11）并进料到低压塔（5）中。气体氮（18）从传质部分（25）上方的低压塔（5）中提取，该传质部分具有至少一个理论或实用的板，并且通过间接的方式在顶部冷凝器（17）中至少部分地冷凝与制冷剂（13）进行热交换。从质量传递部（25）下方的低压塔除去高纯氮，作为氮产物（26,27,30）得到。该方法和装置具有其中制冷流体（31）流动的制冷供应系统。来自制冷供应系统的制冷流体的至少一部分被引入到传质部分25上方的低压塔（5）中。

22. 发明授权

US06666049B1 Method for operating a cryogenic plant 有权
标题翻译：操作低温设备的方法
公开(公告)号：US06666049B1
公开(公告)日：2003-12-23
申请号：US10391557
申请日：2003-03-20
申请人： Edward Katende , Amit Gupta , Paul F. Scharf
发明人： Edward Katende , Amit Gupta , Paul F. Scharf
IPC分类号： F25J304
CPC分类号： F25J3/0409 , F25J3/0223 , F25J3/0252 , F25J3/0261 , F25J3/0266 , F25J3/0295 , F25J3/04412 , F25J3/04678 , F25J3/048 , F25J3/04848 , F25J2280/50 , F25J2290/10 , G05B23/0229 , G05B23/0289 , Y02C10/12
摘要： A method for operating a cryogenic plant using an online real-time monitoring and diagnostic system that continually compares actual versus expected plant key performance indicators, alerts operating personnel to any significant performance shortfall, assists in required diagnostics, and suggests corrective actions, preferably using a top-down diagnostic tree methodology that presents calculated key performance indicators to the operator in a manner which logically flows from plant overview to detailed breakdown by plant area and equipment component.
摘要翻译：一种使用在线实时监测和诊断系统来操作低温设备的方法，该系统不断比较实际与预计的工厂关键性能指标，提醒操作人员任何显着的性能不足，协助进行所需的诊断，并提出纠正措施，优选使用从自下而上的诊断树方法，以从工厂概述逻辑流动到工厂区域和设备部件详细细分的方式向操作员呈现计算的关键性能指标。

23. 发明授权

US06397632B1 Gryogenic rectification method for increased argon production 失效
标题翻译：用于提高氩气产量的Gryogenic精馏方法
公开(公告)号：US06397632B1
公开(公告)日：2002-06-04
申请号：US09901895
申请日：2001-07-11
申请人： James Patrick Meagher
发明人： James Patrick Meagher
IPC分类号： F25J304
CPC分类号： F25J3/04678 , F25J3/04303 , F25J3/04412 , F25J3/04672 , F25J2205/02 , F25J2245/42 , Y10S62/924
摘要： A cryogenic rectification method for increasing the recovery of argon produced in an argon column of a cryogenic air separation plant wherein liquid nitrogen is mixed with higher pressure column kettle liquid to produce a liquid refrigeration mixture to drive the top condenser.
摘要翻译：一种用于提高在低温空气分离装置的氩塔中产生的氩的回收率的低温精馏方法，其中液氮与高压塔釜液体混合以产生液体制冷混合物以驱动顶部冷凝器。

24. 发明授权

US06378331B1 Cold box for cryogenic distilling plant 失效
标题翻译：冷藏箱用于低温蒸馏厂
公开(公告)号：US06378331B1
公开(公告)日：2002-04-30
申请号：US09554585
申请日：2000-09-06
申请人： Roger Vancauwenberghe , Jean-Pierre Gourbier , Laurent Ballanger
发明人： Roger Vancauwenberghe , Jean-Pierre Gourbier , Laurent Ballanger
IPC分类号： F25J304
CPC分类号： F25J3/04872 , F25J3/04878 , F25J3/0489 , F25J3/04945 , F25J3/04987
摘要： The distillation unit includes at least one cryogenic distilling column and at least one heat exchanger, arranged in a chamber with a double casing in which the intermediate partition contains a solid insulator. The unit can be on board offshore floating terminals and drilling platforms.
摘要翻译：蒸馏单元包括至少一个低温蒸馏塔和至少一个热交换器，其布置在具有双壳体的室中，其中中间隔板包含固体绝缘体。该单元可以在海上浮动终端和钻井平台上。

25. 发明授权

US06347534B1 Cryogenic distillation system for air separation 失效
标题翻译：用于空气分离的低温蒸馏系统
公开(公告)号：US06347534B1
公开(公告)日：2002-02-19
申请号：US09317958
申请日：1999-05-25
申请人： Bao Ha
发明人： Bao Ha
IPC分类号： F25J304
CPC分类号： F25J3/04454 , F25J3/0409 , F25J3/04303 , F25J3/04351 , F25J3/04387 , F25J3/04709 , F25J3/04715 , F25J2200/10 , F25J2200/20 , F25J2200/50 , F25J2235/50 , F25J2240/10 , F25J2240/28 , F25J2245/50 , Y10S62/924
摘要： Air is separated in a triple column comprising a high pressure column, an intermediate pressure column and a low pressure column, the intermediate pressure column being fed by oxygen enriched liquid from the high pressure column. The low pressure column feeds an argon column with argon enriched liquid and operates at a higher pressure than the argon column. Heat is supplied to the bottom of the argon column by sending gas to a bottom reboiler. This gas is preferably rich in nitrogen and may come from the top of the low pressure column.
摘要翻译：空气在包括高压塔，中压塔和低压塔的三塔中分离，中压塔由富含高压塔的富氧液体进料。低压塔向氩塔供应富氩液体，并在比氩塔高的压力下运行。通过将气体送到底部再沸器将热量供应到氩塔的底部。该气体优选富含氮气，并且可以来自低压塔的顶部。

26. 发明授权

US06330812B2 Method and apparatus for producing nitrogen from air by cryogenic distillation 有权
标题翻译：通过低温蒸馏从空气中生产氮的方法和装置
公开(公告)号：US06330812B2
公开(公告)日：2001-12-18
申请号：US09775362
申请日：2001-02-01
申请人： Robert Anthony Mostello
发明人： Robert Anthony Mostello
IPC分类号： F25J304
CPC分类号： F25J3/04284 , F25J3/04254 , F25J3/04424 , F25J3/04884 , F25J2205/02 , F25J2210/42 , F25J2235/42 , F25J2245/42 , F25J2250/20 , F25J2250/40 , F25J2250/52
摘要： Nitrogen gas at a single pressure is produced from a two-column cryogenic distillation of air. The bottoms liquid product from the high pressure column is divided into portions, at least one of which does not enter the low pressure column as a feed stream. By these means, a portion of an oxygen-rich stream is removed from the distillation, further enhancing nitrogen recovery and achieving low specific energy consumption for nitrogen product.
摘要翻译：单一压力下的氮气由空气的两列低温蒸馏产生。来自高压塔的底部液体产物被分成多个部分，其中至少一个不作为进料流进入低压塔。通过这些方法，从蒸馏中除去一部分富氧物流，进一步增强氮回收率并实现氮产物的低比能量消耗。

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