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특허 상세정보

Carbon molecular sieve membrane (CMSM) performance tuning by dual temperature secondary oxygen doping (DTSOD

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/22    C01B-031/02    C01B-013/02    B01D-063/00    B01D-069/08   
미국특허분류(USC) 095/050;
출원번호 US-0906143 (2013-05-30)
등록번호 US-8999037 (2015-04-07)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Troutman Sanders LLP
인용정보 피인용 횟수 : 0  인용 특허 : 15
초록

The various embodiments of the disclosure relate generally to carbon molecular sieve membranes (CMSM) and their associated fabrication processes, and more particularly to CMSM that maintain high gas selectivities without losing productivity. Methods for enriching a mixture of gases in one gas via the use of the CMS membranes, and gas enrichment devices using the same, are also disclosed.

대표
청구항

1. A carbon molecular sieve prepared by a method comprising: pyrolyzing a polymer membrane in a first heat treatment in a first oxygen environment comprising less than 5 ppm oxygen; andsubjecting the pyrolyzed polymer membrane to a second heat treatment in a second oxygen environment;wherein the second heat treatment occurs at a temperature above the first heat treatment; andwherein the second oxygen environment has a higher concentration of oxygen than the first oxygen environment. 2. The carbon molecular sieve of claim 1, wherein the pyrolysis is condu...

이 특허에 인용된 특허 (15)

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  2. Koros, William John; Vu, De Quang. High carbon content filamentary membrane and method of making the same. USP2003056565631.
  3. Liu, Chunqing; Minkov, Raisa; Faheem, Syed A.; Bowen, Travis C.; Chiou, Jeffrey J.. High permeance polyimide membranes for air separation. USP2013028366804.
  4. Kumar, Ashwani; Kurdi, Jamal. Highly microporous thermoplastic/bismaleimide semi-interpenetrating polymer network. USP2010087785397.
  5. Chau C. C. (Midland MI) Im Jang-hi (Midland MI) Raspor Otto C. (Midland MI) Tung Lu H. (Midland MI). Method for preparing an asymmetric semi-permeable membrane. USP1989104873037.
  6. Kiyono, Mayumi; Williams, Paul Jason; Koros, William John. Method for producing carbon molecular sieve membranes in controlled atmospheres. USP2013078486179.
  7. Kiyono, Mayumi; Williams, Paul Jason; Koros, William John. Method for producing carbon molecular sieve membranes in controlled atmospheres. USP2014048709133.
  8. Miller,Stephen J.; Kuperman,Alexander; Vu,De Q.. Mixed matrix membranes with low silica-to-alumina ratio molecular sieves and methods for making and using the membranes. USP2006117138006.
  9. Miller,Stephen J.; Kuperman,Alexander; Vu,De Q.. Mixed matrix membranes with small pore molecular sieves and methods for making and using the membranes. USP2007017166146.
  10. Beers, Karl S.; Anderson, Charles L.. Multiple ASM OBIGGS with different permeability and selectivity membranes. USP2012088245978.
  11. Wang, Hsing Lin; Mattes, Benjamin R.. Permeable polyaniline articles for gas separation. USP2009077563484.
  12. Wang, Hsing-Lin; Mattes, Benjamin R.. Permeable polyaniline articles for gas separation. USP2004096797325.
  13. Burgoyne ; Jr. William F. (Emmaus PA) Langsam Michael (Allentown PA). Polyimide membrane having improved flux. USP1990014897092.
  14. Hosseini, Seyed Saeid; Chung, Tai-Shung. Polymer blends and carbonized polymer blends. USP2014018623124.
  15. Mullhaupt, Joseph Timothy; Stephenson, Neil Andrew; Notaro, Frank; Prasad, Ravi. Process for making microporous membranes having selected gas-selective sites and the membranes so made. USP2003046547859.