公开(公告)号：US09433888B2

公开(公告)日：2016-09-06

申请号：US14584465

申请日：2014-12-29

申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

发明人： Sudhir S. Kulkarni

IPC分类号： B01D53/22 ,  C01B23/00

CPC分类号： B01D53/226 ,  B01D2256/18 ,  B01D2257/11 ,  B01D2311/25 ,  B01D2317/02 ,  B01D2317/022 ,  B01D2317/025 ,  B01D2319/02 ,  C01B23/0042 ,  C01B2210/0028 ,  C01B2210/0031 ,  C01B2210/0032 ,  C01B2210/004 ,  C01B2210/007

摘要： A first gas present at low concentration in a source gas is recovered from the source gas (comprising a fast first gas and a slow second gas) at a relatively high recovery using a particular scheme of three gas separation membrane stages. The non-permeate from the first stage is a product gas comprising the slow gas. The second stage feeds non-permeate to the third stage. The third stage non-permeate is combined with the gas fed to the first stage. The permeate from the second stage is divided into two portions. The second portion is a product gas comprising the fast gas. The first portion is combined with the permeates from the first and third stages and the combination is compressed and fed to the second stage. The invention is particularly applicable for separation of Helium from natural gas.

摘要翻译： 使用三个气体分离膜级的特定方案，以相对高的回收率从源气体（包括快速第一气体和慢速第二气体）回收源气体中低浓度存在的第一气体。 来自第一阶段的非渗透物是包含慢气体的产物气体。 第二阶段不渗透到第三阶段。 第三级非渗透物与供给到第一级的气体组合。 来自第二阶段的渗透物被分成两部分。 第二部分是包含快速气体的产物气体。 第一部分与来自第一和第三阶段的渗透物组合，并将组合物压缩并进料至第二阶段。 本发明特别适用于从天然气中分离氦气。

公开(公告)号：US20160184769A1

公开(公告)日：2016-06-30

申请号：US14584465

申请日：2014-12-29

申请人： L'Air Liquide, Societe Anonyme pour I'Etude et I' Exploitation des Procedes Georges Claude

发明人： Sudhir S. KULKARNI

IPC分类号： B01D53/22 ,  C01B23/00

CPC分类号： B01D53/226 ,  B01D2256/18 ,  B01D2257/11 ,  B01D2311/25 ,  B01D2317/02 ,  B01D2317/022 ,  B01D2317/025 ,  B01D2319/02 ,  C01B23/0042 ,  C01B2210/0028 ,  C01B2210/0031 ,  C01B2210/0032 ,  C01B2210/004 ,  C01B2210/007

摘要： A first gas present at low concentration in a source gas is recovered from the source gas (comprising a fast first gas and a slow second gas) at a relatively high recovery using a particular scheme of three gas separation membrane stages. The non-permeate from the first stage is a product gas comprising the slow gas. The second stage feeds non-permeate to the third stage. The third stage non-permeate is combined with the gas fed to the first stage. The permeate from the second stage is divided into two portions. The second portion is a product gas comprising the fast gas. The first portion is combined with the permeates from the first and third stages and the combination is compressed and fed to the second stage. The invention is particularly applicable for separation of Helium from natural gas.

摘要翻译： 使用三个气体分离膜级的特定方案，以相对高的回收率从源气体（包括快速第一气体和慢速第二气体）回收源气体中低浓度存在的第一气体。 来自第一阶段的非渗透物是包含慢气体的产物气体。 第二阶段不渗透到第三阶段。 第三级非渗透物与供给到第一级的气体组合。 来自第二阶段的渗透物被分成两部分。 第二部分是包含快速气体的产物气体。 第一部分与来自第一和第三阶段的渗透物组合，并将组合物压缩并进料至第二阶段。 本发明特别适用于从天然气中分离氦气。

公开(公告)号：US06440196B1

公开(公告)日：2002-08-27

申请号：US09674834

申请日：2000-11-30

申请人： Remo Chiappini ,  Jean-Pierre Fontaine ,  Michel Hamonet ,  Michel Thouard

发明人： Remo Chiappini ,  Jean-Pierre Fontaine ,  Michel Hamonet ,  Michel Thouard

IPC分类号： B01D5304

CPC分类号： B01D53/229 ,  B01D53/04 ,  B01D59/12 ,  B01D59/22 ,  B01D59/50 ,  B01D2253/102 ,  B01D2256/18 ,  C01B23/0094 ,  C01B2210/001 ,  C01B2210/0014 ,  C01B2210/0026 ,  C01B2210/0028 ,  C01B2210/0037

摘要： A method for purifying a minority constituent and concentrating it in a majority constituent of a gas mixture that also contains one or more other minority constituent(s) employs (i) a selective permeation step, (ii) next, a purification step, and (iii) finally a concentration step. In the selective permeation step, an initial gas mixture is passed through a membrane to yield a gas mixture that is enriched in the first minority constituent. In the purifying step, the first minority constituent is absorbed by a solid adsorbent which has a strong affinity for the first minority constituent, then following an elution step, a gas mixture that contains essentially only the majority constituent and the first minority constituent is formed. Finally, in the concentrating step, one or more successive adsorption and elution operations on a solid adsorbent, which has a strong specific affinity for the first minority constituent, are employed until an end gas mixture having the desired concentration of the majority constituent and the first minority constituent is obtained. This end gas mixture is highly enriched in the first minority constituent relative to the initial gas mixture. The procedure is particularly suited for detecting rare gases, e.g., xenon, and especially for detecting the natural and radioactive species in the atmosphere. The procedure can be employed in association with nuclear spectrometry to detect and monitor the presence of trace gases in the environment around nuclear installations.

摘要翻译： 纯化少数成分并将其浓缩在还含有一种或多种其它少数成分的气体混合物的主要成分中的方法使用（i）选择性渗透步骤，（ii）接下来，纯化步骤和（ iii）最后一个集中步骤。 在选择性渗透步骤中，使初始气体混合物通过膜以产生富含第一少数成分的气体混合物。 在纯化步骤中，第一少数成分被对第一少数成分具有强亲和力的固体吸附剂吸收，然后在洗脱步骤之后，形成基本上仅含有多数成分和第一少数成分的气体混合物。 最后，在浓缩步骤中，对固体吸附剂进行一次或多次连续的吸附和洗脱操作，其对第一少数成分具有很强的特异性亲和力，直到具有所需浓度多数成分和第一 获得少数成分。 这种末端气体混合物相对于初始气体混合物高度富集在第一少数成分中。 该方法特别适用于检测稀有气体，例如氙气，特别是用于检测大气中的天然和放射性物质。 该方法可以与核光谱联用来检测和监测核装置周围环境中痕量气体的存在。