[특허]Pumping apparatus for slurry polymerization in loop reactors

Chevron Phillips Chemical Company, LP

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

검색도움말
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

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Pumping apparatus for slurry polymerization in loop reactors

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08F-002/01 B01J-008/08 B01J-008/10
미국특허분류(USC)	422/135; 422/131; 422/132; 526/064
출원번호	US-0663322 (2002-09-16)
발명자 / 주소	Hottovy,John D. Zellers,Dale A. Franklin,Robert K.
출원인 / 주소	Chevron Phillips Chemical Company, LP
대리인 / 주소	Fletcher Yoder
인용정보	피인용 횟수 : 29 인용 특허 : 9

초록
▼

An olefin polymerization process and apparatus wherein a fluid slurry comprising monomer, diluent and catalyst is circulated in a continuous loop reactor by two or more pumps. The process and apparatus allow operating the reaction at significantly higher solids content in the circulating fluid slurry. In a preferred embodiment, the fluid slurry is circulated by two impellers arranged so that the downstream impeller benefits from the rotational energy imparted by the upstream impeller. An olefin polymerization process operating at higher reactor solids by...

대표
청구항
▼

What is claimed is: 1. A loop reactor apparatus comprising: a plurality of major segments; a plurality of minor segments; wherein each of the major segments is connected at a first end to one of the minor segments, and is connected at a second end to another of the minor segments, such that the major and minor segments form a continuous flow path adapted to convey a fluid slurry; at least two pumps for imparting motive force to the fluid slurry within the reactor, each pump operably connected to an impeller disposed in the continuous flow path; wherein two of the impellers face each other and rotate in opposite directions and the two impellers are spaced sufficiently close so that one of the impellers benefits from the rotational energy of the other of the impellers; means for introducing an olefin monomer into the continuous flow path; means for introducing a diluent into the continuous flow path; means for introducing a polymerization catalyst into the continuous flow path; and means for removing a portion of a fluid slurry from the continuous flow path. 2. A loop reactor apparatus according to claim 1 wherein the two impellers are disposed in the same segment. 3. A loop reactor apparatus according to claim 1 wherein a portion of the continuous flow path upstream of at least one of the impellers houses at least one guide vane arranged to impart rotational motion in a direction opposite to the rotational motion of the impeller. 4. A loop reactor apparatus according to claim 1 wherein at least one impeller is situated in an enlarged section of one of the segments, and the enlarged section and the at least one impeller have diameters greater than a diameter of the segments. 5. A loop reactor apparatus according to claim 1 wherein at least one impeller and the segment which houses the impeller define a clearance, and the clearance is 1/16 inch or less. 6. A loop reactor apparatus according to claim 5 wherein the clearance is 1/64 inch or less. 7. A loop reactor apparatus according to claim 1 wherein each impeller has a diameter greater than the average diameter of the segments. 8. A loop reactor apparatus according to claim 1 wherein each impeller consists of a material selected from the group consisting of titanium, aluminum and steel. 9. A loop reactor apparatus according to claim 1 wherein each impeller is a solid mass of metal having no substantial voids. 10. A loop reactor apparatus according to claim 1 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 30,000 gallons or more. 11. A loop reactor apparatus according to claim 1 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 33,000 gallons or more. 12. A loop reactor apparatus according to claim 1 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 35,000 gallons or more. 13. A loop reactor apparatus according to claim 1 wherein the major segments are vertical. 14. A loop reactor apparatus according to claim 1 wherein the major segments are horizontal. 15. A loop reactor apparatus comprising: a plurality of major segments; a plurality of minor segments, each minor segment connecting two of the major segments to each other, whereby the major and minor segments form a continuous flow path; a monomer feed attached to one of the segments; a catalyst feed attached to one of the segments; a product take-off attached to one of the segments; an upstream pump and a downstream pump, wherein the pumps each are attached to an impeller disposed in the interior of the continuous flow path, and the pumps are arranged so that the impellers rotate in opposite directions and are sufficiently close so that the rotational energy imparted by the upstream pump is at least partially recovered by the downstream pump; wherein the impellers are situated in at least one enlarged section of one of the segments, the enlarged section and the impellers having diameters greater than diameter of the segments. 16. A loop reactor apparatus according to claim 15 wherein the two impellers are disposed in the same segment. 17. A loop reactor apparatus according to claim 15 wherein a portion of the continuous flow path upstream of at least one of the impellers houses at least one guide vane arranged to impart rotational motion in a direction opposite to the rotational motion of the impeller. 18. A loop reactor apparatus according to claim 15 wherein at least one impeller is situated in an enlarged section of one of the segments, and the enlarged section and the at least one impeller having diameters greater than a diameter of the segments. 19. A loop reactor apparatus according to claim 15 wherein at least one impeller and the segment which houses the impeller define a clearance, and the clearance is 1/16 inch or less. 20. A loop reactor apparatus according to claim 19 wherein the clearance is 1/64 inch or less. 21. A loop reactor apparatus according to claim 15 wherein each impeller has a diameter greater than the average diameter of the segments. 22. A loop reactor apparatus according to claim 15 wherein each impeller consists of a material selected from the group consisting of titanium, aluminum and steel. 23. A loop reactor apparatus according to claim 15 wherein each impeller is a solid mass of metal having no substantial voids. 24. A loop reactor apparatus according to claim 15 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 30,000 gallons or more. 25. A loop reactor apparatus according to claim 15 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 33,000 gallons or more. 26. A loop reactor apparatus according to claim 15 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 35,000 gallons or more. 27. A loop reactor apparatus comprising: a plurality of major segments; a plurality of minor segments, each minor segment connecting two of the major segments to each other, whereby the major and minor segments form a continuous flow path; a monomer feed attached to one of the segments; a catalyst feed attached to one of the segments; a product take-off attached to one of the segments; at least one guide vane disposed within the continuous flow path; and a pump, wherein the pump is attached to an impeller disposed in the interior of the flow path downstream of the guide vane, wherein the guide vane and the impeller impart rotational motion on the flow path in opposite directions and are sufficiently close so that the slurry is engaged in rotational motion upon engaging the downstream pump. 28. A loop reactor apparatus according to claim 27 wherein at least one impeller is situated in an enlarged section of one of the segments, and the enlarged section and the at least one impeller having diameters greater than a diameter of the segments. 29. A loop reactor apparatus according to claim 27 wherein at least one impeller and the segments which houses the impeller define a clearance,and the clearance is 1/16 inch or less. 30. A loop reactor apparatus according to claim 29 wherein the clearance is 1/64 inch or less. 31. A loop reactor apparatus according to claim 27 wherein each impeller has a diameter greater than the average diameter of the segments. 32. A loop reactor apparatus according to claim 27 wherein each impeller consists of a material selected from the group consisting of titanium, aluminum and steel. 33. A loop reactor apparatus according to claim 27 wherein each impeller is a solid mass of metal having no substantial voids. 34. A loop reactor apparatus according to claim 27 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 30,000 gallons or more. 35. A loop reactor apparatus according to claim 27 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 33,000 gallons or more. 36. A loop reactor apparatus according to claim 27 wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 35,000 gallons or more. 37. A loop reactor apparatus according to claim 27 wherein the major segments are vertical. 38. A loop reactor apparatus according to claim 27 wherein the major segments are horizontal. 39. A loop reactor apparatus comprising: a plurality of major segments; a plurality of minor segments, each minor segment connecting two of the major segments to each other, whereby the major and minor segments form a continuous flow path for carrying slurry; a monomer feed attached to one of the segments; a catalyst feed attached to one of the segments; a product take-off attached to one of the segments; a pump within an arced pump case, the pump case being positioned in one of the segments, the pump having at least one impeller mounted on a shaft, the impeller having blades that are oriented at an angle between 0 to 90 degrees to the shaft, the pump having a bulge positioned along the shaft proximate the at least one impeller, such that a curved flow path is defined between the bulge and the pump case, the flow path being disposed such that the slurry flows by the blades and is redirected out of the pump case by the flow path. 40. A loop reactor apparatus according to claim 39, further including guide vanes situates along the flow path to redirect the rotational flow of the slurry upon discharge from the impeller. 41. A loop reactor apparatus according to claim 39, further including a second pump having an impeller opposite the pump, wherein the impellers of the pumps face each other and rotate in opposite directions and the impellers are spaced sufficiently close so that one of the impellers benefits from the rotational energy of the other of the impellers. 42. A loop reactor apparatus according to claim 41, wherein at least one of the impellers is situated in at least one enlarged section of one of the segments, and the enlarged section and the impeller situated therein have diameters greater than the diameter of the segments. 43. A loop reactor apparatus according to claim 39, wherein the pump is a mixed pump having at least two impellers. 44. A loop reactor apparatus according to claim 39, wherein a portion of the continuous flow path upstream of the impeller houses at least one guide van arranged to impart rotational motion in a direction opposite to the rotational motion of the impeller. 45. A loop reactor apparatus according to claim 39, wherein the impeller and the segment which houses the impeller define a clearance, and the clearance is 1/16 inch or less. 46. A loop reactor apparatus according to claim 39, wherein the impeller has a diameter greater than the average diameter of the segments. 47. A loop reactor apparatus according to claim 39, wherein the impeller consists of a material selected from the group consisting of titanium, aluminum and steel. 48. A loop reactor apparatus according to claim 39, wherein the impeller is a solid mass of metal having no substantial voids. 49. A loop reactor apparatus according to claim 39, wherein the loop reactor apparatus defines a reactor volume, and the reactor volume is 50,000 gallons or more. 50. A loop reactor apparatus according to claim 39, wherein the major segments are vertical. 51. A loop reactor apparatus according to claim 39, wherein the major segments are horizontal.

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 (29)

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

연합인증

특허 상세정보

Pumping apparatus for slurry polymerization in loop reactors

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 (29)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Pumping apparatus for slurry polymerization in loop reactors

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 (29)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼