Method of separation of hydrogen from gas mixtures

0385662 - ÚMCH 2013 RIV eng P - Patent Document
Pientka, Zbyněk
Method of separation of hydrogen from gas mixtures.
2012. Owner: Ústav makromolekulární chemie AV ČR, v. v. i. Date of the patent acceptance: 14.08.2012. Patent Number: US8241402
R&D Projects: GA ČR GA104/09/1165
Institutional research plan: CEZ:AV0Z40500505
Keywords : polymer foam * hydrogen separation
Subject RIV: CB - Analytical Chemistry, Separation
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8241402.PN.

In the present invention, there is disclosed a method of separation of hydrogen from gas mixtures, said method consisting in that a gas mixture with an arbitrary amount of hydrogen is introduced into a closed space in which polymer foam containing non-communicating pores is disposed. Owing to the fact that the hydrogen partial pressure in pores of the polymer foam is lower, hydrogen penetrates into the pores. Hence, the gas mixture leaving the closed space is deficient in hydrogen. The supply of the gas mixture into the closed space can be interrupted at the time when the leaving mixture is of the same composition as the introduced gas mixture or earlier. Then the pressure in the closed space is decreased and, due to the balance of its partial pressure, hydrogen is liberated from the polymer foam and can be received for further use. Its concentration is higher than in the starting gas mixture.
Permanent Link: http://hdl.handle.net/11104/0216043