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1. 发明申请

US20170167788A1 Method and System for Separating Nitrogen from Liquefied Natural Gas Using Liquefied Nitrogen 审中-公开
公开(公告)号：US20170167788A1
公开(公告)日：2017-06-15
申请号：US15347968
申请日：2016-11-10
申请人： Fritz PIERRE, JR. , Richard A. Huntington
发明人： Fritz PIERRE, JR. , Richard A. Huntington
IPC分类号： F25J3/02
CPC分类号： F25J3/0214 , F25J1/0015 , F25J1/0022 , F25J1/0042 , F25J1/0223 , F25J1/0264 , F25J1/0265 , F25J1/0283 , F25J3/0209 , F25J3/0233 , F25J3/0257 , F25J2200/02 , F25J2200/04 , F25J2200/40 , F25J2200/70 , F25J2200/78 , F25J2205/30 , F25J2210/06 , F25J2210/42 , F25J2210/62 , F25J2215/04 , F25J2220/50 , F25J2235/42 , F25J2235/60 , F25J2240/12 , F25J2240/30 , F25J2245/90 , F25J2270/16 , F25J2270/904 , F25J2290/34 , F25J2290/62
摘要： A method for separating nitrogen from an LNG stream with a nitrogen concentration of greater than 1 mol %. A pressurized LNG stream is produced at a liquefaction facility by liquefying natural gas, where the pressurized LNG stream has a nitrogen concentration of greater than 1 mol %. At least one liquid nitrogen (LIN) stream is received from storage tanks, the at least one LIN stream being produced at a different geographic location from the LNG facility. The pressurized LNG stream is separated in a separation vessel into a vapor stream and a liquid stream. The vapor stream has a nitrogen concentration greater than the nitrogen concentration of the pressurized LNG stream. The liquid stream has a nitrogen concentration less than the nitrogen concentration of the pressurized LNG stream. At least one of the one or more LIN streams is directed to the separation vessel.

2. 发明申请

US20170016668A1 Increasing Efficiency In An LNG Production System By Pre-Cooling A Natural Gas Feed Stream 审中-公开
标题翻译：通过预冷天然气进料流在LNG生产系统中提高效率
公开(公告)号：US20170016668A1
公开(公告)日：2017-01-19
申请号：US15182050
申请日：2016-06-14
申请人： Fritz PIERRE, JR. , Parag A. Gupte , Richard A. Huntington , Robert D. Denton
发明人： Fritz PIERRE, JR. , Parag A. Gupte , Richard A. Huntington , Robert D. Denton
IPC分类号： F25J3/08 , F25J3/02 , F25J1/00
CPC分类号： F25J3/08 , F25J1/0022 , F25J1/0035 , F25J1/0042 , F25J1/0072 , F25J1/0221 , F25J1/023 , F25J1/025 , F25J3/0233 , F25J3/0257 , F25J2200/02 , F25J2200/40 , F25J2200/74 , F25J2200/76 , F25J2205/02 , F25J2210/42 , F25J2210/60 , F25J2215/02 , F25J2215/04 , F25J2215/42 , F25J2220/44 , F25J2230/08 , F25J2230/30 , F25J2230/42 , F25J2230/60 , F25J2235/42 , F25J2240/02 , F25J2240/44 , F25J2245/02 , F25J2260/20 , F25J2270/14 , F25J2270/16 , F25J2270/58 , F25J2270/904
摘要： Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit. The LNG is compressed prior to being cooled by the LIN.
摘要翻译：本文描述了使用液化氮（LIN）作为制冷剂来生产液化天然气（LNG）的系统和方法。使用温室气体清除装置，从LIN中除去温室气体污染物。 LNG在被LIN冷却之前被压缩。

3. 发明申请

US20150362250A1 Natural Gas Isobaric Liquefaction Apparatus 有权
标题翻译：天然气等压液化装置
公开(公告)号：US20150362250A1
公开(公告)日：2015-12-17
申请号：US14763760
申请日：2014-01-24
申请人： NANJING RECLAIMER ENVIRONMENTAL TEKNIK CO., LTD.
发明人： Haibo WANG
IPC分类号： F25J1/00
CPC分类号： F25J1/0022 , F25J3/0209 , F25J3/0233 , F25J3/0257 , F25J2200/06 , F25J2200/20 , F25J2205/04 , F25J2210/42 , F25J2215/04 , F25J2220/64 , F25J2235/42 , F25J2240/12 , F25J2240/90 , F25J2270/904
摘要： This invention is about a natural gas isobaric liquefaction apparatus, which is based on the Rankine cycle system of similar thermal energy power circulation apparatus at cryogenic side, a cryogenic liquid pump is used to input power and the refrigerating media makes up cold to the natural gas liquefying apparatus, so as to realize the isobaric liquefaction of natural gas. The natural gas liquefying apparatus of this invention can save energy by over 30% as compared with the traditional advanced apparatus with the identical refrigerating capacity, therefore it constitutes a breakthrough to the traditional natural gas liquefaction technology, with substantial economic, social and environmental protection benefits.
摘要翻译：本发明涉及一种基于低温侧相似热能动力循环装置的兰金循环系统的天然气同量异位液化装置，采用低温液泵输入动力，制冷介质冷却至天然气液化装置，以实现天然气的等压液化。本发明的天然气液化装置与传统的具有相同制冷能力的先进装置相比，能节约30％以上的能量，因此构成传统天然气液化技术的突破，具有重大的经济，社会和环境保护效益。

4. 发明申请

US20150354888A1 Air Separation Apparatus for Isobaric Separation and Production of Oxygen and Nitrogen 审中-公开
标题翻译：用于等压分离和生产氧气和氮气的空气分离装置
公开(公告)号：US20150354888A1
公开(公告)日：2015-12-10
申请号：US14763708
申请日：2014-01-24
申请人： NANJING RECLAIMER ENVIRONMENTAL TEKNIK CO., LTD.
发明人： Haibo WANG
IPC分类号： F25J3/04
CPC分类号： F25J3/0426 , F25J3/04084 , F25J3/0409 , F25J3/04127 , F25J3/04157 , F25J3/04163 , F25J3/04224 , F25J3/04248 , F25J3/04254 , F25J3/04278 , F25J3/04412 , F25J3/04418 , F25J2200/06 , F25J2200/20 , F25J2205/24 , F25J2210/42 , F25J2235/42 , F25J2240/44 , F25J2270/14
摘要： This invention is about an air separation apparatus to produce oxygen and nitrogen through isobaric separation, which is based on the Rankine cycle system of similar thermal energy power circulation apparatus at cryogenic side, a liquid pump is used to input work and the cold is made up to the air separation apparatus with refrigerating media, so as to realize the isobaric separation of air to produce nitrogen and oxygen. The air separation apparatus of this invention can save energy by over 30% as compared with the traditional advanced apparatus with the identical refrigerating capacity, and it can also realize centralize gas supply via the air separation apparatus, therefore it constitutes a breakthrough to the traditional air separation technology and refrigeration theory, with substantial economic, social and environmental protection benefits.
摘要翻译：本发明涉及一种通过等压分离产生氧和氮的空气分离装置，其基于在低温侧类似的热能动力循环装置的兰金循环系统，液体泵用于输入工作，并且冷组成到具有制冷介质的空气分离装置，以实现空气的等压分离以产生氮和氧。本发明的空气分离装置与具有相同制冷能力的传统先进装置相比可以节约30％以上的能量，并且还可以通过空气分离装置实现集中供气，从而构成对传统空气的突破分离技术和制冷理论，具有重大的经济，社会和环境保护效益。

5. 发明申请

US20130042647A1 Production Of High-Pressure Gaseous Nitrogen 审中-公开
标题翻译：高压气态氮的生产
公开(公告)号：US20130042647A1
公开(公告)日：2013-02-21
申请号：US13212461
申请日：2011-08-18
申请人： Paul Musicus
发明人： Paul Musicus
IPC分类号： F25J3/08
CPC分类号： F25J3/04212 , F25J3/0406 , F25J3/04218 , F25J3/04303 , F25J3/04351 , F25J3/04424 , F25J3/0486 , F25J2200/20 , F25J2200/54 , F25J2235/42 , F25J2245/42
摘要： The present invention is an improved process for producing elevated pressure nitrogen. This method includes providing an air separation unit with at least two columns, an LP column and an MP column, and cooling a compressed feed air stream in a heat exchanger, then expanding the resulting cooled feed air stream in an expander, thereby producing a quantity of work and a cooled inlet air stream, feeding the cooled inlet air stream into the LP column. Then extracting a nitrogen stream from the MP column, and warming a first portion of the nitrogen stream in the heat exchanger, thereby producing a product nitrogen stream. Then compressing a second portion of the nitrogen stream in a compressor, thereby producing medium pressure nitrogen stream, and introducing the medium pressure nitrogen stream into an LP column vaporizer. Then extracting a second nitrogen stream from the LP column, and cooling the second nitrogen stream in a condenser thereby producing a liquid nitrogen stream. Then introducing a first portion of the liquid nitrogen stream into the LP column, increasing the pressure of a second portion of the liquid nitrogen stream, thereby producing a pressurized liquid nitrogen stream, and introducing a first portion of the pressurized liquid nitrogen stream into the MP column, and export a second portion of the pressurized liquid nitrogen stream as product.
摘要翻译：本发明是用于生产高压氮的改进方法。该方法包括提供具有至少两个柱的空气分离单元，LP塔和MP塔，并且在热交换器中冷却压缩的进料空气流，然后将所得到的冷却的进料空气流膨胀在膨胀机中，从而产生一定量的工作和冷却的入口空气流，将冷却的入口空气流供给到LP塔中。然后从MP柱中提取氮气流，并且在热交换器中加热氮气流的第一部分，从而产生产物氮气流。然后压缩压缩机中氮气流的第二部分，从而产生中压氮气流，并将中压氮气流引入LP塔蒸发器。然后从LP塔提取第二氮气流，并在冷凝器中冷却第二氮气流，从而产生液氮流。然后将液氮流的第一部分引入LP塔中，增加液氮流的第二部分的压力，从而产生加压液氮流，并将第一部分加压液氮流引入MP 柱，并将加压液氮流的第二部分作为产物输出。

6. 发明授权

US06546748B1 Cryogenic rectification system for producing ultra high purity clean dry air 有权
标题翻译：用于生产超高纯洁净干燥空气的低温精馏系统
公开(公告)号：US06546748B1
公开(公告)日：2003-04-15
申请号：US10166361
申请日：2002-06-11
申请人： Richard Martin Kelly , Thomas John Bergman, Jr.
发明人： Richard Martin Kelly , Thomas John Bergman, Jr.
IPC分类号： F25J300
CPC分类号： F25J3/04078 , F25J3/04206 , F25J3/0429 , F25J3/04424 , F25J2215/02 , F25J2215/40 , F25J2215/44 , F25J2215/52 , F25J2220/40 , F25J2235/02 , F25J2235/42 , F25J2235/52 , F25J2245/42 , F25J2250/40
摘要： A cryogenic rectification system wherein feed air is provided into the lower portion of a cryogenic rectification column, and liquid having a defined oxygen concentration is withdrawn from a defined intermediate level of the column above the feed air introduction level, vaporized and optionally diluted with nitrogen for recovery as ultra high purity clean dry air.
摘要翻译：一种低温精馏系统，其中进料空气被提供到低温精馏塔的下部，并且具有确定的氧浓度的液体从进料空气引入水平的规定的中间水平中排出，蒸发并任选用氮气稀释，恢复为超高纯洁净干燥空气。

7. 发明授权

US06276172B1 Process for producing ultrapure nitrogen 失效
标题翻译：超纯氮生产工艺
公开(公告)号：US06276172B1
公开(公告)日：2001-08-21
申请号：US09437263
申请日：1999-11-10
申请人： Dietrich Rottman , Christian Kunz
发明人： Dietrich Rottman , Christian Kunz
IPC分类号： F25J300
CPC分类号： F25J3/04218 , F25J3/04084 , F25J3/04212 , F25J3/04284 , F25J3/04351 , F25J3/04454 , F25J3/04963 , F25J3/08 , F25J2200/04 , F25J2200/10 , F25J2200/50 , F25J2200/72 , F25J2210/42 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2235/42 , F25J2245/42 , F25J2250/20 , F25J2250/42 , F25J2270/42 , F25J2290/62 , Y10S62/92
摘要： For producing ultrapure nitrogen by low-temperature fractionation of air in a rectification system having at least one rectification column, compressed and purified feed air is conducted into a high pressure column, an oxygen-free pressurized nitrogen fraction is produced from the high pressure column, conducted into a low-pressure column and in the low-pressure column carbon-monoxide-free low-pressure nitrogen is produced as overhead gas. The oxygen-free pressurized nitrogen fraction (1) is either taken off in the liquid state from an upper region of the high pressure column or is provided from a liquid tank (22) containing stored oxygen-free nitrogen and the oxygen-free pressurized nitrogen fraction (1) is expanded into the bottom-heated low-pressure column (2). Ascending vapour in the lowpressure column (2) by mass transfer with and an ultrapure nitrogen reflux applied at the top of the low-pressure column (2) and is freed from carbon monoxide using ultrapure nitrogen, withdrawn as carbon-monoxide-free overhead gas (5) at the top of the low-pressure column (2). After a pressure increase the overhead (5), is partially liquefied, and the liquefied part (17, 18) is expanded into a bottom-heated He—Ne—H2 column (4) from which the ultrapure nitrogen (19) is withdrawn in the liquid state.
摘要翻译：为了在具有至少一个精馏塔的精馏系统中通过空气的低温分馏制备超纯氮，将压缩和纯化的进料空气进入高压塔，由高压塔产生无氧加压氮馏分，进入低压塔，在低压塔中产生一氧化碳的低压氮作为塔顶气体。无氧加压氮馏分（1）从高压塔的上部区域以液态取出，或者由含有储存无氧氮的液体罐（22）和无氧加压氮馏分（1）膨胀到底部加热的低压塔（2）中。在低压塔（2）的顶部通过传质和超纯氮回流在低压塔（2）中升高蒸气，并使用超纯氮从一氧化碳中除去一氧化碳，作为一氧化碳的塔顶气体（5）在低压塔（2）的顶部。在压力增加之后，顶部（5）部分液化，液化部分（17,18）膨胀成底部加热的He-Ne-H2柱（4），超纯氮（19）从该塔中取出液态。

8. 发明授权

US06276171B1 Integrated apparatus for generating power and/or oxygen enriched fluid, process for the operation thereof 有权
标题翻译：用于产生动力和/或富氧流体的集成装置，其操作过程
公开(公告)号：US06276171B1
公开(公告)日：2001-08-21
申请号：US09481681
申请日：2000-01-12
申请人： Jean-Renaud Brugerolle
发明人： Jean-Renaud Brugerolle
IPC分类号： F25J300
CPC分类号： F25J3/04218 , F25J3/0409 , F25J3/04254 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04339 , F25J3/04351 , F25J3/044 , F25J3/04412 , F25J3/04442 , F25J3/04478 , F25J3/04515 , F25J3/04545 , F25J3/04575 , F25J3/046 , F25J3/04606 , F25J3/04618 , F25J3/0489 , F25J3/04963 , F25J3/04969 , F25J2200/20 , F25J2200/70 , F25J2205/30 , F25J2210/42 , F25J2235/42 , F25J2240/80 , F25J2245/42 , Y02E20/14
摘要： In an integrated power generation system, part of the air from a gas turbine compressor is separated in a single nitrogen wash column to remove oxygen and the gaseous nitrogen produced at the top of the column is sent back to a point upstream of the expander of the gas turbine. The wash column may be fed with liquid nitrogen from an independent air separation unit in which air is separated. Liquid from the bottom of the wash column may be fed back to the air separation unit. In order to boost production of an air separation plant, an additional plant is linked with the original plant. For example, air may be separated in a single nitrogen wash column to remove oxygen and gaseous nitrogen is produced at the top of the column. The wash column is fed with liquid nitrogen from the high pressure column of the air separation unit. Liquid from the bottom of the wash column may be fed back to the air separation unit.
摘要翻译：在集成发电系统中，来自燃气轮机压缩机的部分空气在单个氮气洗涤塔中分离以除去氧气，并且在塔顶产生的气态氮被送回到燃气轮机。洗涤塔可以从分离空气的独立空气分离单元供给液氮。来自洗涤塔底部的液体可以被反馈到空气分离单元。为了提高空分设备的生产，一个额外的工厂与原厂相连。例如，空气可以在单个氮气洗涤塔中分离以除去氧气，并且在塔顶部产生气态氮。洗涤塔从空气分离单元的高压塔供给液氮。来自洗涤塔底部的液体可以被反馈到空气分离单元。

9. 发明授权

US6141989A Air separation 失效
标题翻译：空气分离
公开(公告)号：US6141989A
公开(公告)日：2000-11-07
申请号：US215592
申请日：1998-12-17
申请人： John Douglas Oakey
发明人： John Douglas Oakey
IPC分类号： F25J3/04 , F25J3/00
CPC分类号： F25J3/04303 , F25J3/04084 , F25J3/04206 , F25J3/04212 , F25J3/04412 , F25J3/04448 , F25J3/04454 , F25J2200/50 , F25J2200/52 , F25J2200/54 , F25J2235/42 , F25J2245/42 , F25J2250/40 , F25J2250/42
摘要： Air is separated in a double rectification column comprising a higher pressure rectification column, a lower pressure rectification column, and a first condenser-reboiler, of which the condensing passages communicate with an upper region of the higher pressure rectification column, and the reboiling passage communicate with a lower region of the lower pressure rectification column. A second condenser-reboiler is operated so as to reboil a liquid fraction obtained in the higher pressure rectification column. A stream of the air to be separated is partially or totally condensed by indirect heat exchange with a stream of nitrogen condensed in the first condenser-reboiler. At least part of the stream of condensed nitrogen is taken as product downstream of its heat exchange with the second stream of compressed air.
摘要翻译：空气在包括高压精馏塔，低压精馏塔和第一冷凝器 - 再沸器的双精馏塔中分离，其中冷凝通道与高压精馏塔的上部区域连通，再沸通路连通低压精馏塔的下部区域。操作第二冷凝器 - 再沸器以使在高压精馏塔中获得的液体馏分再沸腾。通过与在第一冷凝器再沸器中冷凝的氮气流的间接热交换，待分离的空气流部分或全部冷凝。将冷凝氮气流的至少一部分作为其与第二压缩空气流的热交换下游的产物。

10. 发明授权

US5964104A Method and device for obtaining nitrogen by low-temperature separation of air 失效
标题翻译：通过空气低温分离获得氮的方法和装置
公开(公告)号：US5964104A
公开(公告)日：1999-10-12
申请号：US79236
申请日：1998-05-15
申请人： Dietrich Rottmann
发明人： Dietrich Rottmann
IPC分类号： F25J3/04 , F25J3/00
CPC分类号： F25J3/04212 , F25J3/04309 , F25J3/04412 , F25J2200/20 , F25J2200/54 , F25J2235/42 , F25J2245/42 , F25J2250/42 , F25J2250/50
摘要： In the method and device, nitrogen is obtained by two-stage rectification of air in a double column. Double column contains a high-pressure column and a medium-pressure column that are in a heat-exchange relationship with each other. Entering air is compressed, purified, cooled in a main heat exchanger against separation products, and fed to rectification. At least one nitrogen product fraction is taken from high-pressure column. A nitrogen gas fraction from double column is heated, expanded, and brought into indirect heat exchange with an oxygen-enriched liquid from the lower region of medium-pressure column. In this way, the nitrogen gas fraction is at least partially condensed and the oxygen-enriched liquid is at least partially evaporated. The condensate formed in the indirect heat exchange is at least partially fed to medium-pressure column. The nitrogen gas fraction is heated upstream of expansion to an intermediate temperature that is between the temperatures at the cold end and the warm end of main heat exchanger.
摘要翻译：在该方法和装置中，氮气通过双塔中空气的两级精馏获得。双柱包含彼此处于热交换关系的高压塔和中压塔。进入空气被压缩，净化，在主热交换器中冷却分离产物，并进料进行精馏。从高压塔取出至少一个氮气产物馏分。来自双塔的氮气馏分被加热，膨胀，并与来自中压塔的下部区域的富氧液体进行间接热交换。以这种方式，氮气部分至少部分冷凝，富氧液体至少部分蒸发。在间接热交换中形成的冷凝物至少部分地供给中压塔。将氮气馏分在膨胀的上游加热至在主热交换器的冷端和暖端之间的温度之间的中间温度。

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