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

Georgia Tech Research Corporation

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

특허 상세정보

MyON담기

내보내기

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	Singh, Rachana Koros, William John
출원인 / 주소	Georgia Tech Research Corporation
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 conducted at between 400 and 500° C. 3. The carbon molecular sieve of claim 1, wherein the first oxygen environment comprises less than 2 ppm oxygen. 4. The carbon molecular sieve of claim 1, wherein the second oxygen environment comprises more than 5 ppm oxygen. 5. The carbon molecular sieve of claim 1, wherein the second oxygen environment comprises about more than 10 ppm oxygen. 6. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 7.1, and an oxygen permeance of at least 13.8 GPU (1 GPU=10−6 cm3(STP)/(cm2 sec cmHg)=3.35×10−10 mol/(m2 s Pa)). 7. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 8, and an oxygen permeance of at least 13.8 GPU. 8. The carbon molecular sieve of claim 1, wherein subjecting the pyrolyzed polymer membrane to the second heat treatment is conducted at a temperature of greater than or equal to 500° C. 9. The carbon molecular sieve of claim 1, wherein subjecting the pyrolyzed polymer membrane to the second heat treatment is conducted at a temperature of greater than or equal to 525° C. 10. The carbon molecular sieve of claim 1, wherein subjecting the pyrolyzed polymer membrane to the second heat treatment is conducted at a temperature of greater than or equal to 550° C. 11. The carbon molecular sieve of claim 1, wherein the first oxygen environment comprises less than 1 ppm oxygen. 12. The carbon molecular sieve of claim 1, wherein the second oxygen environment comprises between 5 ppm oxygen and 60 ppm oxygen. 13. The carbon molecular sieve of claim 1, wherein the second oxygen environment comprises between 10 ppm oxygen and 53 ppm oxygen. 14. The carbon molecular sieve of claim 1, wherein the polymer membrane is a hollow fiber polymer membrane. 15. The carbon molecular sieve of claim 1, wherein the polymer membrane has a carbon content of at least 60 wt % and a hydrogen content of less than 5 wt. %. 16. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 7.5. 17. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 8. 18. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen permeance of greater than 25 GPU. 19. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen permeance of greater than 30 GPU. 20. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 7.5 and an oxygen permeance of at least 30 GPU. 21. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of at least 8.7 and an oxygen permeance of at least 13.8 GPU. 22. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of at least 8 and an oxygen permeance of at least 30 GPU. 23. The carbon molecular sieve of claim 1, wherein the carbon molecular sieve comprises a pyrolyzed hollow fiber polymer membrane. 24. The carbon molecular sieve of claim 1, wherein the polymer membrane is a hollow fiber polymer membrane with a bore or lumen passing through the length thereof. 25. A method of decreasing the content of a gas in a mixture of gases, comprising: contacting the mixture with the carbon molecular sieve of claim 1, andseparating two gas streams at the carbon molecular sieve. 26. The method of claim 25, wherein the two gas streams comprise a first gas stream enriched in a first gas and a second gas stream that is depleted in the first gas. 27. The method of claim 25, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 7.5. 28. The method of claim 25, wherein the carbon molecular sieve has an oxygen/nitrogen selectivity of greater than 8. 29. The method of claim 25, wherein the carbon molecular sieve has an oxygen permeance of greater than 25 GPU. 30. The method of claim 25, wherein the gas mixture is selected from the group consisting of a mixture containing oxygen and nitrogen, a mixture containing carbon dioxide and methane, a mixture containing helium and nitrogen, and a mixture containing helium and sulfur hexafluoride. 31. The method of claim 25, wherein the gas mixture is selected from the group consisting of a mixture containing ethylene and ethane, and a mixture containing propylene and propane. 32. The method of claim 25, wherein the gas mixture comprises oxygen and nitrogen.

이 특허에 인용된 특허 (15)

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

특허 상세정보

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

초록

대표
청구항
▼

이 특허에 인용된 특허 (15)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

특허 상세정보

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

초록

대표청구항 ▼

이 특허에 인용된 특허 (15)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

대표
청구항
▼