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公开(公告)号：US20240343578A1
公开(公告)日：2024-10-17
申请号：US18606018
申请日：2024-03-15
IPC分类号： C01B23/00 , B01D53/00 , B01D53/047 , B01D53/14 , B01D53/22 , B01D53/26 , B01D53/46 , C01B32/50 , F25J3/02
CPC分类号： C01B23/0094 , B01D53/002 , B01D53/047 , B01D53/1475 , B01D53/229 , B01D53/26 , B01D53/46 , C01B32/50 , F25J3/029 , B01D2251/102 , B01D2252/20431 , B01D2252/20447 , B01D2252/20489 , B01D2256/18 , B01D2257/102 , B01D2257/108 , B01D2257/504 , B01D2257/702 , B01D2257/80 , C01B2210/0004 , C01B2210/001 , C01B2210/0014 , C01B2210/0025 , C01B2210/0031 , C01B2210/0046 , C01B2210/0051 , C01B2210/0053 , C01B2210/0062 , C01B2210/007 , F25J2205/30 , F25J2205/40 , F25J2205/64 , F25J2205/80 , F25J2205/82 , F25J2210/20 , F25J2215/30 , F25J2220/02 , F25J2240/40 , F25J2270/30 , F25J2270/42 , F25J2270/58
摘要： The present provides a helium gas separation and recovery process involving cryogenic fractionation process, which comprises cooling a dehydrated high-pressure gas stream while maintain velocity and pressure of the stream; reducing pressure of the dehydrated high-pressure gas stream via a Joule-Thompson's process to obtain a partially liquefied gas stream; and iii) subjecting the partially liquefied gas stream to at least one gas-liquid separation process to obtain at least one liquid stream and a gaseous stream comprising helium, and a residual amount of the gaseous components; recycling the liquid stream obtained in step iii) for use as cooling refrigerant to cool the dehydrated high-pressure gas stream; and purifying the unrefined helium gas stream using pressure swing adsorption (PSA) and/or membrane separation process to obtain a helium product stream having a purity of 98.0 mole % or more.
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公开(公告)号：US20160228813A1
公开(公告)日：2016-08-11
申请号：US14618702
申请日：2015-02-10
IPC分类号： B01D53/22 , B01J19/24 , B01D53/047
CPC分类号： B01D53/229 , B01D53/047 , B01D53/226 , B01D2053/221 , B01D2256/18 , B01D2257/108 , B01J19/24 , B01J2219/24 , C01B23/0021 , C01B23/0047 , C01B2210/0004 , C01B2210/001 , C01B2210/0012 , C01B2210/0031 , C01B2210/0046 , C01B2210/0053 , C01B2210/007 , C01B2210/0082 , Y02P20/125
摘要： The present invention relates a process and apparatus that recovers a helium rich stream from a mixed gas having low concentrations of helium therein. More specifically, the invention relates to an integrated process and apparatus for treating a mixed feed gas from an operating process that produces a fluid product from natural gas containing helium, such as processes that produce ammonia, methanol, or liquid hydrocarbons.
摘要翻译： 本发明涉及从其中具有低浓度氦气的混合气体回收富氦气流的方法和装置。 更具体地，本发明涉及一种用于处理来自生产来自含有氦的天然气的流体产物的操作过程的混合进料气体的一体化方法和装置，例如产生氨，甲醇或液体烃的方法。
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公开(公告)号：US20160115029A1
公开(公告)日：2016-04-28
申请号：US14919816
申请日：2015-10-22
申请人： UOP LLC
IPC分类号： C01B23/00 , B01D53/22 , B01D53/047
CPC分类号： C01B23/0094 , B01D53/002 , B01D53/047 , B01D53/228 , B01D53/229 , B01D53/72 , B01D53/75 , B01D53/864 , B01D2251/102 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2256/18 , B01D2257/108 , B01D2257/502 , B01D2257/504 , B01D2257/7022 , B01D2257/7025 , B01D2257/80 , C01B2210/0004 , C01B2210/001 , C01B2210/0014 , C01B2210/0031 , Y02C10/10 , Y02C20/20 , Y02P20/152 , Y02P20/156
摘要： A process and apparatus for increasing recovery of helium are described. The process includes introducing the stream containing helium and at least one oxidizable component into an oxidation zone in the presence of oxygen to oxidize the oxidizable component forming a first vapor stream and a first liquid stream. The first vapor stream is introduced into a pressure swing adsorption zone to form a purified helium stream and a tail gas stream. The tail gas stream is compressed. The compressed tail gas stream is introduced into a membrane separation zone to form a helium rich permeate stream and a retentate stream. The helium rich permeate stream is compressed and introduced into the oxidation system.
摘要翻译： 描述了用于提高氦回收率的方法和装置。 该方法包括在氧的存在下将含有氦和至少一种可氧化组分的物流引入氧化区，以氧化形成第一蒸气流和第一液流的可氧化组分。 将第一蒸气流引入变压吸附区以形成纯化的氦气流和尾气流。 尾气流被压缩。 将压缩的尾气流引入膜分离区以形成富氦渗透物流和滞留物流。 将富氦的渗透物流压缩并引入氧化体系。
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公开(公告)号：US11691875B2
公开(公告)日：2023-07-04
申请号：US16619594
申请日：2018-06-07
申请人： BRACCO IMAGING SPA
IPC分类号： C01B7/14
CPC分类号： C01B7/14 , C01B2210/0004 , C01B2210/007
摘要： The invention relates to a process for the recovery and recycling of the iodine from aqueous solutions comprising iodine-comprising aromatic compounds in which the iodine contained in said aromatic compounds is directly converted into molecular iodine at a pH lower than 1, in the absence of a catalyst.
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公开(公告)号：US20180244523A1
公开(公告)日：2018-08-30
申请号：US15758189
申请日：2016-09-05
IPC分类号： C01B23/00
CPC分类号： C01B23/0094 , B01D53/005 , B01D53/007 , B01D53/14 , B01D2251/40 , B01D2256/18 , B01D2259/4533 , C01B2210/0004 , C01B2210/0009 , C01B2210/0029 , C01B2210/0046 , C01B2210/0053 , C01B2210/007
摘要： A method of removing buffer gas from a mixture comprising the buffer gas and hyperpolarized noble gas is described. The method includes reacting the buffer gas to produce a reaction product different to the buffer gas. The buffer gas may be reactively removed by one or more of oxidation, reduction, polymerization and binding reactions with solid surfaces. The buffer gas may be molecular hydrogen and/or molecular nitrogen. Apparatus for carrying out the method are also disclosed.
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公开(公告)号：US09623370B2
公开(公告)日：2017-04-18
申请号：US14618702
申请日：2015-02-10
IPC分类号： B01D53/22 , B01D53/047 , C01B23/00 , B01J19/24
CPC分类号： B01D53/229 , B01D53/047 , B01D53/226 , B01D2053/221 , B01D2256/18 , B01D2257/108 , B01J19/24 , B01J2219/24 , C01B23/0021 , C01B23/0047 , C01B2210/0004 , C01B2210/001 , C01B2210/0012 , C01B2210/0031 , C01B2210/0046 , C01B2210/0053 , C01B2210/007 , C01B2210/0082 , Y02P20/125
摘要： The present invention relates a process and apparatus that recovers a helium rich stream from a mixed gas having low concentrations of helium therein. More specifically, the invention relates to an integrated process and apparatus for treating a mixed feed gas from an operating process that produces a fluid product from natural gas containing helium, such as processes that produce ammonia, methanol, or liquid hydrocarbons.
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7.发明申请公开(公告)号：US20130149226A1
公开(公告)日：2013-06-13
申请号：US13693673
申请日：2012-12-04
申请人： Lingyan Song , Lloyd Anthony Brown
发明人： Lingyan Song , Lloyd Anthony Brown
IPC分类号： C01B23/00
CPC分类号： C01B23/0094 , C01B23/0021 , C01B2210/0004 , C01B2210/0034 , C01B2210/0045 , C01B2210/005 , C01B2210/0053 , C01B2210/007 , C01B2210/0098 , C30B15/00 , C30B15/20 , C30B29/06 , F25J3/08 , F25J2200/02 , F25J2205/40 , F25J2205/50 , F25J2205/82 , F25J2215/30 , F25J2215/58 , F25J2245/02 , F25J2245/58 , Y02C10/12
摘要： This invention is directed to a method for recovering, purifying and recycling an inert gas on a continual basis in connection with a silicon crystal pulling process. Silicon oxide impurities generated during the crystal growth process are completely oxidized by in-situ oxidation with a regulated amount of an oxidizing source gas mixture to form silicon dioxide impurities, which can be removed by a particulate removal device. The particulate-free effluent enters a purification unit to remove the remaining impurities. The inert gas emerging from the purification unit can be fed back into the crystal puller apparatus and/or mixed with the oxidizing source gas mixture. As a result, the ability to increase silicon crystal throughput, quality and at the same time reduce the costs associated with recycling the inert gas can be achieved.
摘要翻译： 本发明涉及一种连续地回收，净化和再循环惰性气体的方法，其结合硅晶体拉制工艺。 在晶体生长过程中产生的氧化硅杂质通过用调节量的氧化源气体混合物进行原位氧化而完全氧化，形成二氧化硅杂质，其可通过微粒去除装置除去。 无颗粒流出物进入净化单元以除去剩余的杂质。 从净化单元排出的惰性气体可以反馈到晶体拉出装置中和/或与氧化源气体混合物混合。 结果，可以实现提高硅晶体产量，质量并同时降低与惰性气体再循环相关的成本的能力。
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公开(公告)号：US11926525B2
公开(公告)日：2024-03-12
申请号：US15758189
申请日：2016-09-05
CPC分类号： C01B23/0094 , B01D53/005 , B01D53/007 , B01D53/14 , B01D2251/40 , B01D2256/18 , B01D2259/4533 , C01B2210/0004 , C01B2210/0009 , C01B2210/0029 , C01B2210/0046 , C01B2210/0053 , C01B2210/007
摘要： A method of removing buffer gas from a mixture comprising the buffer gas and hyperpolarized noble gas is described. The method includes reacting the buffer gas to produce a reaction product different to the buffer gas. The buffer gas may be reactively removed by one or more of oxidation, reduction, polymerization and binding reactions with solid surfaces. The buffer gas may be molecular hydrogen and/or molecular nitrogen. Apparatus for carrying out the method are also disclosed.
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公开(公告)号：US06511640B1
公开(公告)日：2003-01-28
申请号：US09606886
申请日：2000-06-29
申请人： Ravi Kumar , Shuguang Deng
发明人： Ravi Kumar , Shuguang Deng
IPC分类号： B01D5300
CPC分类号： C01B21/0494 , B01D53/0462 , B01D53/261 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2257/504 , B01D2257/80 , B01D2259/4146 , B01D2259/4148 , B01D2259/416 , B01J23/44 , B01J23/8892 , C01B2210/0004 , C01B2210/0014 , C01B2210/005 , C01B2210/0053 , C01B2210/0062 , F25J3/04163 , F25J3/04169 , F25J2205/82 , F25J2215/44 , Y02C10/08 , Y02P20/152
摘要： A process for producing a purified gaseous product from a gaseous feedstream such as air containing impurities is disclosed. The impurities such as hydrogen, water vapor, carbon monoxide and carbon dioxide are removed from the gaseous feedstream in a vessel having layers of adsorbents and oxidation catalysts. The placement of the hydrogen to water vapor conversion catalyst downstream of the step of contacting the feedstream with a catalyst to convert the carbon monoxide to the carbon dioxide and the step of removing the carbon dioxide from the feedstream improves not only performance but also the economies of the purification system.
摘要翻译： 公开了一种从含有杂质的空气等气态原料流中制备纯化气体产物的方法。 在具有吸附剂和氧化催化剂层的容器中，从气态进料流中除去氢，水蒸气，一氧化碳和二氧化碳等杂质。 在将进料流与催化剂接触以将一氧化碳转化为二氧化碳的步骤和从进料流中除去二氧化碳的步骤之后将氢置于水蒸气转化催化剂的下游不仅改善了性能，而且改善了 净化系统。
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公开(公告)号：US06113869A
公开(公告)日：2000-09-05
申请号：US719832
申请日：1996-09-30
申请人： Ravi Jain , James K. Tseng
发明人： Ravi Jain , James K. Tseng
IPC分类号： B01D53/34 , B01D53/02 , B01D53/04 , B01D53/26 , B01D53/28 , B01D53/81 , B01D53/86 , B01J20/08 , B01J20/10 , B01J20/18 , B01J23/34 , B01J23/42 , B01J23/44 , B01J23/72 , B01J23/755 , C01B21/04 , C01B23/00 , B01D53/46 , B01D53/62
CPC分类号： C01B23/0094 , B01D53/04 , C01B21/0494 , B01D2253/104 , B01D2253/108 , B01D2257/102 , B01D2257/104 , B01D2257/108 , B01D2257/50 , B01D2257/504 , B01D2257/80 , B01D2258/0216 , B01D2259/402 , B01D2259/404 , B01D2259/4146 , B01D2259/416 , C01B2210/0003 , C01B2210/0004 , C01B2210/0014 , C01B2210/0034 , C01B2210/005 , C01B2210/0053 , C01B2210/0062 , C01B2210/007 , Y02C10/08 , Y02P20/152
摘要： An argon gas stream containing hydrogen, carbon monoxide, water vapor, oxygen carbon dioxide, nitrogen and methane is purified by drying the gas stream with a desiccant, oxidizing the hydrogen and carbon dioxide to water vapor and carbon dioxide by contact with oxidizing catalysts in the presence of excess oxygen, removing the water vapor and carbon dioxide from the gas stream by adsorption, removing excess oxygen by chemisorption at elevated temperature and removing the nitrogen and methane by adsorption at cryogenic temperature. Alternatively, excess oxygen is removed from the gas stream by adsorption at a cryogenic temperature.
摘要翻译： 通过用干燥剂干燥气流来纯化含有氢气，一氧化碳，水蒸气，氧气二氧化碳，氮气和甲烷的氩气流，通过与氢气和二氧化碳接触，将氧气和二氧化碳氧化成水蒸汽和二氧化碳 存在过量的氧气，通过吸附从气流中除去水蒸气和二氧化碳，通过高温下的化学吸附除去过量的氧气，并在低温下通过吸附除去氮气和甲烷。 或者，通过在低温下的吸附从气流中除去过量的氧气。
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