[특허]Recovery of slurry unsupported catalyst

Recovery of slurry unsupported catalyst 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-038/48 B01D-061/14 C10G-031/09 C10G-031/11 B01J-027/051
출원번호	US-0004015 (2007-12-20)
등록번호	US-8765622 (2014-07-01)
발명자 / 주소	Shah, Lalit S. Powers, Christopher A. Stoy, James R. Brent, Fred D. Reynolds, Bruce E. Da Costa, Andre R.
출원인 / 주소	Chevron U.S.A. Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 123

초록 ▼

A method of recovering unsupported fine catalyst from heavy oil comprises combining a slurry comprising unsupported fine catalyst in heavy oil with solvent to form a combined slurry-solvent stream. The combined slurry-solvent stream is filtered in a deoiling zone. A stream comprising unsupported fine catalyst and solvent is recovered from the deoiling zone. Unsupported fine catalyst is separated from the stream comprising unsupported fine catalyst and solvent. Filtering in the deoiling zone can comprise filtering the slurry and solvent through a cross-flow microfiltration unit, recovering a retentate stream of the cross-flow microfiltration unit, combining the retentate stream of the cross-flow microfiltration unit with solvent to form a combined retentate-solvent stream, and filtering the combined retentate-solvent stream through a cross-flow microfiltration unit.

대표청구항 ▼

1. A method of recovering unsupported fine catalyst from heavy oil, the method comprising: a) combining a slurry comprising unsupported fine catalyst in heavy oil with solvent to form a combined slurry-solvent stream;b) filtering the combined slurry-solvent stream in a deoiling zone employing at least a membrane that is rapidly displaced in a horizontal direction thereby generating a second stream comprising solvent and heavy oil and a retentate stream;c) recovering from the deoiling zone the retentate stream comprising unsupported fine catalyst and solvent; andd) separating the unsupported fine catalyst from the retentate stream comprising unsupported fine catalyst and solvent by a drying step generating a dry solid containing the unsupported fine catalyst with less than 0.5 wt % heavy oil. 2. The method of claim 1, wherein the slurry and solvent are combined prior to the deoiling zone. 3. The method of claim 1, wherein the slurry and solvent are combined in the deoiling zone. 4. The method of claim 1, wherein the deoiling zone comprises diafiltration. 5. The method of claim 1, wherein the filtering in the deoiling zone comprises the following steps: i) filtering the slurry and solvent through a cross-flow microfiltration unit;ii) recovering a retentate stream of the cross-flow microfiltration unit;iii) combining the retentate stream of the cross-flow microfiltration unit with solvent to form a combined retentate-solvent stream; andiv) filtering the combined retentate-solvent stream through a cross-flow microfiltration unit. 6. The method of claim 1, wherein the catalyst comprises particles having a size distribution in the range of about 0.2-20 microns and a mean particle size of about 4-5 micron, wherein a mode of the size distribution is about 6-7 micron. 7. The method of claim 1, wherein: the catalyst comprises a Group VI and/or Group VIII metal compound sulfide;the heavy oil comprises unconverted heavy oil; andthe solvent is selected from the group consisting of toluene, propane, diesel boiling range hydrocarbon material, light naphtha, and mixtures thereof. 8. The method of claim 1, wherein the catalyst comprises partially or completely deactivated slurry hydroprocessing catalyst. 9. The method of claim 1, wherein the slurry comprises about 5-50 weight % unsupported fine catalyst in heavy oil. 10. The method of claim 1, wherein the filtering in the deoiling zone comprises filtering the slurry and solvent through a cross-flow microfiltration unit. 11. The method of claim 1, further comprising prior to separating unsupported fine catalyst from the stream comprising unsupported fine catalyst and solvent, concentrating the stream comprising unsupported fine catalyst and solvent to provide a concentrated stream comprising unsupported fine catalyst and a reduced amount of solvent. 12. The method of claim 1, further comprising, prior to combining the slurry with solvent, concentrating the slurry to provide a concentrated slurry comprising unsupported fine catalyst and a reduced amount of heavy oil. 13. A method of recovering unsupported fine catalyst from heavy oil, the method comprising: a) combining a slurry comprising unsupported fine catalyst in heavy oil with a first solvent to form a combined slurry-solvent stream;b) filtering the combined slurry-solvent stream through a first cross-flow microfiltration unit;c) recovering a first retentate stream comprising a slurry of unsupported fine catalyst and solvent from the cross-flow microfiltration unit;d) combining the first retentate stream of the cross-flow microfiltration unit with a second solvent which is the same or different from the first solvent to form a combined retentate-solvent stream;e) filtering the combined retentate-solvent stream through another cross-flow microfiltration unit to recover a second retentate stream comprising unsupported fine catalyst and solvent; andseparating unsupported fine catalyst from the second retentate stream by a drying step generating a dry solid containing unsupported fine catalyst with less than 0.5 wt. % heavy oil. 14. The method of claim 13, comprising cycling steps c), d), and e) at least two times. 15. The method of claim 13, wherein the first retentate stream of the cross-flow microfiltration unit and solvent are combined prior to the cross-flow microfiltration unit of step e). 16. The method of claim 13, wherein the first retentate stream of the cross-flow microfiltration unit and solvent are combined in the cross-flow microfiltration unit of step e). 17. The method of claim 13, further comprising recycling a permeate stream of a cross-flow microfiltration unit other than the cross-flow microfiltration unit of step b) to be used as the solvent in step a).

이 특허에 인용된 특허 (123)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 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

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Recovery of slurry unsupported catalyst 원문보기

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Recovery of slurry unsupported catalyst 원문보기

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