专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5106398A Air separation 失效
标题翻译：空气分离
公开(公告)号：US5106398A
公开(公告)日：1992-04-21
申请号：US445074
申请日：1989-12-04
申请人： Graeme J. Dunn , Robert Owen , John D. Oakey , David J. Kamrath , Robert A. Mostello
发明人： Graeme J. Dunn , Robert Owen , John D. Oakey , David J. Kamrath , Robert A. Mostello
IPC分类号： F25J3/02 , F25J3/04 , F25J3/08
CPC分类号： F25J3/04412 , F25J3/08 , F25J2200/02 , F25J2200/32 , F25J2200/72 , F25J2205/02 , F25J2205/60 , F25J2215/44 , F25J2235/50 , F25J2250/20
摘要： In order to provide `ultra high purity` nitrogen having diminished concentrations of light and heavy impurities in comparison with nitrogen produced by conventional cryogenic air separation, the nitrogen product from a conventional cryogenic air separation column is introduced into the bottom of a liquid-vapor contract column 2 fitted with a condenser 8 to provide reflux. A liquid nitrogen stream having a reduced concentration of heavy impurities is withdrawn from the column 2 through an outlet 22 situated at a level a few trays below the top tray in the column 2. The liquid nitrogen is then subjected to two stages of flash separation. In the first stage the liquid is passed through valve 24 into a phase separator 26. In the second stage, the resulting liquid from the first stage, having a reduced concentration of light impurities, is passed through valve 32 into a phase separator 34. Liquid nitrogen product is withdrawn from the phase separator 34 through outlet 38.
摘要翻译：为了提供与常规低温空气分离产生的氮气相比，具有减少的轻质和重杂质浓度的“超高纯度”氮，将来自常规低温空气分离塔的氮产物引入液 - 气合同的底部柱2装有冷凝器8以提供回流。具有降低的重杂质浓度的液氮物流通过出口22从塔2中排出，出口22位于塔2中顶部托盘下方几个托盘的水平面上。然后液氮经受两级闪蒸分离。在第一阶段中，液体通过阀24进入相分离器26.在第二阶段，来自第一级的所得液体具有降低的轻杂质浓度，通过阀32进入相分离器34.液体氮产物通过出口38从相分离器34排出。

2. 发明授权

US07373790B2 Nitrogen rejection method and apparatus 有权
标题翻译：氮排除方法和装置
公开(公告)号：US07373790B2
公开(公告)日：2008-05-20
申请号：US11453206
申请日：2006-06-14
申请人： Stephen R. Clare , John D. Oakey
发明人： Stephen R. Clare , John D. Oakey
IPC分类号： F25J3/00
CPC分类号： F25J3/0257 , F25J3/0209 , F25J3/0233 , F25J2200/06 , F25J2200/72 , F25J2200/78 , F25J2205/04 , F25J2235/60 , F25J2240/02 , F25J2240/12 , F25J2240/44 , F25J2270/04 , F25J2280/02 , Y10S62/927
摘要： Nitrogen is rejected from a pressurized feed gas stream comprising methane and nitrogen by cooling the feed gas stream in a main heat exchanger and rectifying the cooled feed gas stream in a double rectification column comprising a higher pressure rectification column, a lower pressure rectification column, and a condenser-reboiler placing the higher pressure column in heat exchange relationship with the lower pressure column. A pump withdraws a methane product stream from the column. The methane product stream is pressurized by the pump and is vaporized in the main heat exchanger. The pressurized feed gas stream is expanded with the performance of external work in an expansion turbine 6 upstream of the main heat exchanger.
摘要翻译：通过冷却主热交换器中的进料气流并将冷却的进料气流精馏在包括较高压力精馏塔，低压精馏塔和低压精馏塔的双精馏塔中，将氮气从包含甲烷和氮气的加压进料气流中排出，将高压塔放置在与低压塔热交换关系的冷凝器再沸器中。泵从塔中取出甲烷产物流。甲烷产物流由泵加压并在主热交换器中蒸发。加压进料气流在主热交换器上游的膨胀涡轮机6中进行外部作业的膨胀。

3. 发明授权

US4747859A Air separation 失效
标题翻译：空气分离
公开(公告)号：US4747859A
公开(公告)日：1988-05-31
申请号：US95287
申请日：1987-09-10
申请人： David C. F. Gladman , John D. Oakey
发明人： David C. F. Gladman , John D. Oakey
IPC分类号： F25J3/04
CPC分类号： F25J3/0429 , F25J3/04193 , F25J3/04303 , F25J3/04393 , F25J3/04412 , F25J3/04678 , F25J3/0469 , F25J2200/52 , F25J2200/54 , F25J2245/40 , F25J2290/10 , Y10S62/924
摘要： Air is fractionated in a double distillation column comprising lower pressure and higher pressure columns. A condenser/reboiler provides reboiled oxygen to the bottom of the column. Liquid nitrogen reflux is introduced into the top of the column. Oxygen, nitrogen and argon-enriched streams are withdrawn from the column. The argon-enriched stream is separated in a further distillation column and a product argon stream is withdrawn therefrom. A liquid stream comprising oxygen and nitrogen is withdrawn from an intermediate level of the column, is at least partially reboiled in a heat exchanger, and is returned to the column at a level where the composition of the vapor corresponds approximately to that of the reboiled liquid. Heating for the heat exchanger is provided by a fluid stream withdrawn from the second distillation column. The fluid stream is returned to the second column. The reboiling of the stream from the intermediate level of the first distillation column enhances the efficiency of the air separation.
摘要翻译：空气在包含较低压力和较高压力的塔的双蒸馏塔中分馏。冷凝器/再沸器向塔底提供再沸氧。将液氮回流引入塔顶。从塔中取出氧气，氮气和富氩流。在另外的蒸馏塔中分离富氩流，从其中取出产物氩气流。包含氧和氮的液体物流从柱的中间水平排出，在热交换器中至少部分地再沸腾，并以蒸汽的组成大致对应于再沸化液体的水平的水平返回到塔。热交换器的加热由从第二蒸馏塔排出的流体流提供。流体流返回到第二列。来自第一蒸馏塔的中间水平的物流的再沸腾增强了空气分离的效率。

4. 发明授权

US4638639A Gas refrigeration method and apparatus 失效
标题翻译：气体制冷方法及装置
公开(公告)号：US4638639A
公开(公告)日：1987-01-27
申请号：US758001
申请日：1985-07-23
申请人： John Marshall , John D. Oakey
发明人： John Marshall , John D. Oakey
IPC分类号： F25J1/00 , F25B9/10 , F25J1/02
CPC分类号： F25J1/004 , F25J1/0015 , F25J1/0022 , F25J1/0037 , F25J1/0045 , F25J1/0072 , F25J1/0208 , F25J2270/06 , F25J2270/90 , F25J2290/10
摘要： A method of liquefying a permanent gas stream, includes the steps of reducing the temperature of the permanent gas stream at elevated pressure to below its critical pressure and performing at least two working fluid cycles to provide at least part of the refrigeration necessary to reduce the temperature of the permanent gas to below its critical temperature. Each working fluid cycle comprises work-expanding the cooled working fluid in countercurrent heat exchange with the permanent gas stream and with the working fluid being cooled, refrigeration thereby being provided for the permanent gas stream. In at least one working fluid cycle, work-expanded working fluid is brought into countercurrent heat exchange relationship with the permanent gas stream at a temperature below the critical temperature of the permanent gas and in the or each such cycle on completion of the work expansion the working fluid is at a pressure of at least 10 atmospheres.
摘要翻译：一种液化永久性气体流的方法包括以下步骤：将永久气体流在升高的压力下降低至其临界压力以下，并执行至少两个工作流体循环以提供必要的至少一部分制冷以降低温度的永久气体低于其临界温度。每个工作流体循环包括使冷却的工作流体与永久气流逆流热交换并且工作流体被冷却的工作膨胀，由此为永久气流提供制冷。在至少一个工作流体循环中，工作膨胀的工作流体在低于永久气体的临界温度的温度下与永久性气体流形成逆流热交换关系，并且在工作膨胀完成时或每个这样的循环中工作流体处于至少10个大气压的压力。

5. 发明授权

US4638638A Refrigeration method and apparatus 失效
标题翻译：制冷方法及装置
公开(公告)号：US4638638A
公开(公告)日：1987-01-27
申请号：US758000
申请日：1985-07-23
申请人： John Marshall , John D. Oakey
发明人： John Marshall , John D. Oakey
IPC分类号： F25J1/00 , F25B9/10 , F25J1/02
CPC分类号： F25J1/0208 , F25J1/0015 , F25J1/0022 , F25J1/004 , F25J1/0045 , F25J2270/06 , F25J2270/90
摘要： A method of liquefying a permanent gas stream includes the step of reducing the temperature of the permanent gas stream at elevated pressure to below its critical temperature. The reduction in temperature is effected at least in part by countercurrent heat exchange with work expanded working fluid, at least some of which is at a temperature below the critical temperature of the permanent gas when it is brought into heat exchange relationship with the permanent gas stream. The permanent gas stream after being cooled to below its critical temperature is then subjected to at least three successive isenthalpic expansions. Resulting flash gas is separated from the resulting liquid. At least some of the flash gas is heat exchanged with the permanent gas stream at elevated pressure.
摘要翻译：液化永久性气流的方法包括将升高的压力下的永久气体流的温度降低到其临界温度以下的步骤。至少部分地通过与工作膨胀的工作流体进行逆流热交换来实现温度的降低，当工作膨胀的工作流体与永久气流成热交换关系时，其至少一些温度低于永久气体的临界温度。然后将冷却至其临界温度之后的永久气流经历至少三次连续的等焓膨胀。产生的闪蒸气体与所得液体分离。至少一些闪蒸气体在升高的压力下与永久气流热交换。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式