专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

161. 发明授权

US5609040A Process and plant for producing carbon monoxide 失效
标题翻译：生产一氧化碳的工艺和设备
公开(公告)号：US5609040A
公开(公告)日：1997-03-11
申请号：US411878
申请日：1995-03-28
申请人： Jean Billy , Fran.cedilla.ois Granier
发明人： Jean Billy , Fran.cedilla.ois Granier
IPC分类号： F25B43/00 , C01B3/02 , C01B3/50 , C01B32/40 , F25J3/02 , F25J3/04 , F25J3/00
CPC分类号： F25J3/0285 , C01B3/025 , C01B3/506 , C01B31/18 , F25J3/0223 , F25J3/0261 , F25J3/04539 , F25J3/04545 , F25J3/04587 , C01B2203/046 , C01B2203/0465 , C01B2203/047 , C01B2203/048 , F25J2200/30 , F25J2200/72 , F25J2200/74 , F25J2200/76 , F25J2205/04 , F25J2270/02 , F25J2270/04 , F25J2270/08 , F25J2270/24 , Y10S62/92 , Y10S62/931
摘要： Carbon monoxide is recovered by a cryogenic route from a gas mixture, for example from the tail gas of an operation for scrubbing with nitrogen in the preparation of an ammonia synthesis mixture, this mixture containing carbon monoxide, hydrogen and other constituents including nitrogen. The hydrogen is separated off by partial condensation and the other components by distillation of the condensate. The carbon monoxide is produced by distillation in two columns, of which only one has a head condenser fed with a flow of liquid carbon monoxide. A liquid flow is drawn at an intermediate level in the column with the head condenser and directed to the head of the other column.
摘要翻译：一氧化碳通过低温路线从气体混合物回收，例如来自用于在氨合成混合物的制备中用氮气洗涤的操作的尾气，该混合物含有一氧化碳，氢气和包括氮的其它组分。通过部分冷凝分离氢气，通过蒸馏冷凝物分离出其他组分。一氧化碳通过蒸馏在两个塔中产生，其中只有一个具有供应有液体一氧化碳流的头部冷凝器。液体流在柱头的中间水平处用头部冷凝器拉出并且被引导到另一个柱的头部。

162. 发明授权

US5123947A Cryogenic process for the separation of air to produce ultra high purity nitrogen 失效
标题翻译：用于分离空气以产生超高纯氮的低温工艺
公开(公告)号：US5123947A
公开(公告)日：1992-06-23
申请号：US638853
申请日：1991-01-03
申请人： Rakesh Agrawal
发明人： Rakesh Agrawal
IPC分类号： F25J3/04
CPC分类号： F25J3/04872 , F25J3/044 , F25J3/0443 , F25J3/04448 , F25J3/04454 , F25J2200/30 , F25J2200/32 , F25J2200/50 , F25J2200/54 , F25J2200/74 , F25J2200/94 , F25J2205/02 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2250/20
摘要： This invention relates to a cryogenic process for the separation of air utilizing an integrated multi-column distillation system wherein an ultra high purity nitrogen product is generated. In the cryogenic distillation separation of air, air is initially compressed, pretreated and cooled for separation into its components. Ultra high purity, e.g., nitrogen typically having less than 0.1 ppm impurities is generated in a multi-column distillation system comprising a first column and an ultra high purity nitrogen column with enhanced nitrogen product recovery by withdrawing a gaseous nitrogen fraction from a first column and charging the fraction as a feed to the ultra high purity nitrogen column, withdrawing a nitrogen stream which is rich in volatile contaminants from the top of the ultra high purity nitrogen column and recovering a nitrogen product at a point below the removal point of the nitrogen rich stream containing volatile components. Removal of volatile components in the distillation process is effected by partially condensing a nitrogen vapor stream from either the first column or the ultra high purity column and removing at least one of the uncondensed portions of the nitrogen rich stream containing volatile components as a purge stream.
摘要翻译：本发明涉及一种使用集成的多塔蒸馏系统分离空气的低温方法，其中产生超高纯氮产物。在空气的低温蒸馏分离中，空气最初被压缩，预处理并冷却以分离成其组分。在包括第一塔和超高纯度氮塔的多塔蒸馏系统中产生超高纯度，例如通常具有小于0.1ppm杂质的氮，通过从第一塔中取出气态氮馏分而提高氮产物回收率，将该馏分作为进料加入到超高纯氮塔中，从超高纯度氮塔的顶部排出富含挥发性污染物的氮气流，并在低于富氮的去除点的一个点回收氮产物流含有挥发性成分。通过将来自第一塔或超高纯度塔的氮蒸汽流部分冷凝并除去含有挥发性组分的富氮流的至少一个未冷凝部分作为吹扫流来实现蒸馏过程中挥发性组分的去除。

163. 发明授权

US4934147A Cryogenic gas purification process and apparatus 失效
标题翻译：低温气体净化工艺及装置
公开(公告)号：US4934147A
公开(公告)日：1990-06-19
申请号：US407569
申请日：1989-09-15
申请人： Douglas V. Eyre
发明人： Douglas V. Eyre
IPC分类号： F25J3/04 , F25J3/08
CPC分类号： F25J3/08 , F25J3/0426 , F25J3/04278 , F25J3/04351 , F25J3/04412 , F25J2200/02 , F25J2200/04 , F25J2200/30 , F25J2200/34 , F25J2205/40 , F25J2205/84 , F25J2210/42 , F25J2210/50 , F25J2215/44 , F25J2215/56 , F25J2215/58 , F25J2220/42 , F25J2220/44 , F25J2220/50 , F25J2220/52 , F25J2235/02 , F25J2270/42 , F25J2270/904 , F25J2280/02
摘要： A process and apparatus for the ultrapurification of cryogenic low boiling liquified gases such as oxygen and nitrogen which contain trace impurities. The impure gas is introduced into a first distillation column provided with a top column condenser and a bottom column reboiler. The impure gas is substantially at its liquid-gas equilibrium temperature at the pressures within the first distillation column. Here the gas is separated by distillation into a first vapor fraction containing low boiling point impurities and a first liquid fraction containing high boiling point impurities. The first vapor fraction is withdrawn and introduced into a second distillation column provided with a top column condenser and a bottom column reboiler. The first vapor fraction is substantially at the liquid-gas equilibrium temperature at the pressures within the second distillation column. Here the vapor fraction is separated by distillation into a second vapor fraction containing low boiling point impurities and a second liquid fraction free of trace impurities which is withdrawn as product. Cooling for the process is provided by indirect heat exchange with a cryogenic low boiling gas such as nitrogen, oxygen, or air. The gas to be purified as well as the heat exchange gas can be obtained from a standard air separation unit or the process can be conducted using gases and liquids obtained from storage.
摘要翻译：用于低温低沸点液化气体如氧气和氮气超纯化的方法和设备，其含有微量杂质。将不纯气体引入设置有顶塔冷凝器和底塔再沸器的第一蒸馏塔中。不纯气体在第一蒸馏塔内的压力下基本处于液 - 气平衡温度。这里，通过蒸馏将气体分离成含有低沸点杂质的第一蒸气馏分和含有高沸点杂质的第一液体馏分。取出第一蒸气馏分并将其引入设置有顶塔冷凝器和底塔再沸器的第二蒸馏塔中。第一蒸气馏分在第二蒸馏塔内的压力下基本处于液 - 气平衡温度。这里通过蒸馏将蒸气馏分分离成含有低沸点杂质的第二蒸气馏分和作为产物取出的无痕量杂质的第二液体部分。通过与低温低沸点气体如氮气，氧气或空气的间接热交换来提供该方法的冷却。待净化的气体以及热交换气体可以从标准空气分离单元获得，或者可以使用从储存器获得的气体和液体进行该过程。

164. 发明授权

US4895584A Process for C.sub.2 recovery 失效
标题翻译： C2恢复过程
公开(公告)号：US4895584A
公开(公告)日：1990-01-23
申请号：US296432
申请日：1989-01-12
申请人： Loren L. Buck , Ronald D. Key
发明人： Loren L. Buck , Ronald D. Key
IPC分类号： C07C7/04 , F25J3/02
CPC分类号： F25J3/0238 , C07C7/04 , F25J3/0209 , F25J3/0219 , F25J3/0233 , F25J2200/02 , F25J2200/30 , F25J2200/78 , F25J2205/04 , F25J2210/12 , F25J2230/30 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2270/90
摘要： An improved process for separating a hydrocarbon bearing feed gas containing methane and lighter, C.sub.2 (ethylene and ethane) and heavier components into a fraction containing predominantly methane and lighter components and a fraction containing predominantly C.sub.2 and heavier hydrocarbon components including the steps of cooling and partially condensing and delivering the feed stream to a separator to provide a first residue vapor and a C.sub.2 containing liquid, directing a portion of the C.sub.2 containing liquid into a heavy ends fractionation column wherein the liquid is separated into a second hydrocarbon bearing vapor residue and a C.sub.2 containing product, conducting a portion of the first residue vapors with at least part of the partially condensed second residue into a light ends fractionating column to thereby obtain third residue vapors and liquids, supplying the liquids recovered from the light ends fractionating column to the heavy ends fractionation column as the liquid feed thereto and directing part of the C.sub.2 containing liquid from the first step into intimate contact with the second residue, which liquid provides additional liquefied methane which acts with the partially condensed second residue as a direct contact refrigerant to thereby condense C.sub.2 and heavier components while the methane itself is evaporated in the light ends fractionation column.

165. 发明授权

US4599096A Process for fractionation of a gaseous mixture employing side stream withdrawal, separation, and recycle 失效
$Process for fractionation of a gaseous mixture employing side stream withdrawal, separation, and recycle$
标题翻译：使用侧流取出，分离和再循环分馏气体混合物的方法
公开(公告)号：US4599096A
公开(公告)日：1986-07-08
申请号：US610725
申请日：1984-05-16
申请人： Peter S. Burr
发明人： Peter S. Burr
IPC分类号： B01D3/36 , B01D53/14 , C07C7/04 , F25J3/02
CPC分类号： F25J3/0233 , B01D3/36 , B01D53/14 , C07C7/04 , F25J3/0209 , F25J3/0238 , F25J3/0242 , F25J3/0247 , F25J3/0266 , F25J2200/30 , F25J2200/90 , F25J2205/40 , F25J2205/50 , F25J2205/80 , F25J2220/66 , Y02C10/12 , Y02P20/152 , Y10S203/20
摘要： In fractionating a gaseous mixture, e.g. an acid gas and hydrocarbon, in a column wherein, during distillation, components of the gaseous mixture tend to form a substantially azeotropic mixture, or at least one of the components of the gaseous mixture tends to freeze out, withdrawing a side stream fluid from the column during fractionation, and separating said side stream fluid, e.g. by membranes or scrubbing, so as to remove preferentially at least a portion of one of the components of the substantially azeotropic mixture, or of at least one of the components tending to freeze out, and recycling resultant depleted side stream to said fractionating column.
摘要翻译：在分馏气体混合物，例如在塔中的酸性气体和烃，其中在蒸馏期间，气体混合物的组分倾向于形成基本上共沸的混合物，或者气态混合物中的至少一种组分倾向于冷凝，将侧流流体从在分馏期间分离所述侧流流体，例如通过膜或洗涤，以便优先除去基本上共沸的混合物中的一种组分的至少一部分，或倾向于冷冻的至少一种组分，并将所得的贫化侧流再循环到所述分馏塔。

166. 发明授权

US4496380A Cryogenic gas plant 失效
标题翻译：低温天然气厂
公开(公告)号：US4496380A
公开(公告)日：1985-01-29
申请号：US511448
申请日：1983-07-07
申请人： John M. Harryman
发明人： John M. Harryman
IPC分类号： F25J3/02
CPC分类号： F25J3/0233 , F25J3/0209 , F25J3/0238 , F25J2200/02 , F25J2200/30 , F25J2200/76 , F25J2230/08 , F25J2230/60 , F25J2290/40
摘要： A process for separating substantially all of the C.sub.3 and heavier components and a major portion of the C.sub.2 component from a natural gas stream using a cryogenic process. The process uses a rectifying column in combination with a fractionating column to separate the C.sub.2 and heavier components with the reflux for the rectifying column being supplied by compressing a small portion of the overheads and condensing it via heat exchange with the overheads stream.
摘要翻译：使用低温工艺从天然气流中分离基本上所有的C3和较重组分以及大部分C2组分的方法。该方法使用精馏塔与分馏塔组合，以分离C2和较重的组分与用于精馏塔的回流，通过压缩一小部分塔顶馏出物并通过与塔顶馏出物流的热交换使其冷凝。

167. 发明授权

US4192662A Process for liquefying and rectifying air 失效
标题翻译：液化和整流空气的过程
公开(公告)号：US4192662A
公开(公告)日：1980-03-11
申请号：US863889
申请日：1977-12-23
申请人： Shunji Ogata , Yohei Yamamoto
发明人： Shunji Ogata , Yohei Yamamoto
IPC分类号： F17C9/04 , F25J3/04
CPC分类号： F25J3/044 , F17C9/04 , F25J3/0406 , F25J3/04157 , F25J3/04193 , F25J3/04224 , F25J3/04272 , F25J3/04351 , F25J2200/30 , F25J2200/76 , F25J2210/62 , F25J2230/60 , F25J2270/904 , F25J2290/12 , Y10S62/912
摘要： Separation of air to produce oxygen, nitrogen and other materials is done by liquefaction and rectification under low pressure to achieve a large saving of the power requirement. The cold of LNG (liquefied natural gas) is utilized for cooling feed air and compressed gas (principally nitrogen), and this gas is compressed at an extremely low temperature so as to achieve further saving of power.
摘要翻译：通过在低压下进行液化和精馏分离空气来生产氧气，氮气等物质，实现了大量的电力需求的节省。 LNG（液化天然气）的冷却用于冷却进料空气和压缩气体（主要是氮气），并且该气体在极低的温度下被压缩，从而进一步节省功率。

168. 发明授权

US2953905A Hydrocarbon separation 失效
公开(公告)号：US2953905A
公开(公告)日：1960-09-27
申请号：US64626957
申请日：1957-03-15
申请人： KELLOGG M W CO
发明人： JAMES CHRONES , GRECO SAVERIO G , JOHN HANISIAN
IPC分类号： C07C7/04 , F25J3/02
CPC分类号： C07C7/04 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J3/0247 , F25J3/0252 , F25J3/0257 , F25J2200/02 , F25J2200/30 , F25J2200/74 , F25J2205/02 , F25J2210/02 , F25J2210/04 , F25J2210/12 , F25J2245/02

169. 发明授权

US2577701A Fractionation process 失效
标题翻译：分馏过程
公开(公告)号：US2577701A
公开(公告)日：1951-12-04
申请号：US67094146
申请日：1946-05-20
申请人： SHELL DEV
发明人： HARVEY DEMING PHILIP , LEE SAGENKAHN MALCOLM
IPC分类号： C07C7/04
CPC分类号： C07C7/04 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J3/0247 , F25J3/0252 , F25J2200/30 , F25J2200/50 , F25J2200/74 , F25J2200/94 , F25J2205/02 , F25J2205/04 , F25J2205/50 , F25J2210/12 , F25J2215/62 , F25J2215/64 , F25J2230/08 , F25J2270/02 , F25J2270/88 , C07C11/04

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