Process for removing refractory nitrogen compounds from vacuum gas oil
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-021/24
C10G-021/12
C10G-021/06
C07C-007/10
출원번호
US-0555769
(2012-07-23)
등록번호
US-8574427
(2013-11-05)
발명자
/ 주소
Mezza, Beckay J.
Wang, Haiyan
Bhattacharyya, Alakananda
Nicholas, Christopher P.
출원인 / 주소
UOP LLC
대리인 / 주소
Goldberg, Mark
인용정보
피인용 횟수 :
1인용 특허 :
22
초록▼
A process for removing a refractory nitrogen compound from a hydroprocessed vacuum gas oil feed includes contacting the hydroprocessed vacuum gas oil feed comprising the nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a hydroprocessed vacuum gas oil and VGO-immiscible pho
A process for removing a refractory nitrogen compound from a hydroprocessed vacuum gas oil feed includes contacting the hydroprocessed vacuum gas oil feed comprising the nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a hydroprocessed vacuum gas oil and VGO-immiscible phosphonium ionic liquid mixture, and separating the mixture to produce a hydroprocessed vacuum gas oil effluent having a reduced refractory nitrogen compound content relative to the vacuum gas oil feed.
대표청구항▼
1. A process for removing a refractory nitrogen compound from a vacuum gas oil comprising: (a) hydroprocessing the vacuum gas oil;(b) contacting the vacuum gas oil comprising the refractory nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a mixture comprising the vacuum ga
1. A process for removing a refractory nitrogen compound from a vacuum gas oil comprising: (a) hydroprocessing the vacuum gas oil;(b) contacting the vacuum gas oil comprising the refractory nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a mixture comprising the vacuum gas oil and the VGO-immiscible phosphonium ionic liquid; and(c) separating the mixture to produce a vacuum gas oil effluent and a VGO-immiscible phosphonium ionic liquid effluent, the VGO-immiscible phosphonium ionic liquid effluent comprising the refractory nitrogen compound;wherein said refractory nitrogen compound comprises at least one compound selected from the group consisting of indoles and naphthenic indoles, quinolines and naphthenic quinolines, carbazoles and naphthenic carbazoles, acridines and naphthenic acridines, benzocarbazole and naphthenic benzocarbazoles, benzacridines and naphthenic benzacridines, and dibenzocarbazoles and naphthenic dibenzocarbazoles;wherein the VGO-immiscible phosphonium ionic liquid comprises at least one ionic liquid selected from the group consisting of tetraalkylphosphonium dialkylphosphates, tetraalkylphosphonium dialkyl phosphinates, tetraalkylphosphonium phosphates, tetraalkylphosphonium tosylates, tetraalkylphosphonium sulfates, tetraalkylphosphonium sulfonates, tetraalkylphosphonium carbonates, tetraalkylphosphonium metalates, oxometalates, tetraalkylphosphonium mixed metalates, tetraalkylphosphonium polyoxometalates, tetraalkylphosphonium halides, trihexyl(tetradecyl)phosphonium chloride, trihexyl(tetradecyl)phosphonium bromide, tributyl(methyl)phosphonium bromide, tributyl(methyl)phosphonium chloride, tributyl(hexyl)phosphonium bromide, tributyl(hexyl)phosphonium chloride, tributyl(octyl)phosphonium bromide, tributyl(octyl)phosphonium chloride, tributyl(decyl)phosphonium bromide, tributyl(decyl)phosphonium chloride, tetrabutylphosphonium bromide, tetrabutylphosphonium chloride, triisobutyl(methyl)phosphonium tosylate, tributyl(methyl)phosphonium methylsulfate, tributyl(ethyl)phosphonium diethylphosphate, and tetrabutylphosphonium methanesulfonate;wherein the refractory nitrogen compound content of the vacuum gas oil is reduced by at least 10 wt %. 2. The process of claim 1 wherein the mixture further comprises water in an amount less than about 50% relative to the amount of VGO-immiscible phosphonium ionic liquid in the mixture on a weight basis. 3. The process of claim 1 wherein the ratio of the vacuum gas oil to the VGO-immiscible phosphonium ionic liquid in the mixture ranges from about 1:1000 to about 1000:1 on a weight basis. 4. The process of claim 1 wherein the refractory nitrogen compound is reduced by greater than 40% on a weight basis. 5. The process of claim 1 further comprising passing at least a portion of the vacuum gas oil effluent to a hydrocarbon conversion process. 6. The process of claim 5 wherein said hydrocarbon conversion process comprises catalytic cracking or hydroprocessing. 7. The process of claim 1 further comprising washing at least a portion of the vacuum gas oil effluent with water to produce a washed vacuum gas oil stream and a spent water stream. 8. The process of claim 7 further comprising passing at least a portion of the washed vacuum gas oil stream to a hydrocarbon conversion process. 9. The process of claim 1 further comprising contacting the VGO-immiscible phosphonium ionic liquid effluent with a regeneration solvent and separating the VGO-immiscible phosphonium ionic liquid effluent from the regeneration solvent to produce an extract stream comprising the refractory nitrogen compound and a regenerated VGO-immiscible phosphonium ionic liquid stream. 10. The process of claim 9 further comprising recycling at least a portion of the regenerated VGO-immiscible phosphonium ionic liquid stream to the refractory nitrogen compound removal contacting step. 11. The process of claim 9 wherein the regeneration solvent comprises a lighter hydrocarbon fraction relative to the vacuum gas oil and the extract stream further comprises the lighter hydrocarbon fraction, the lighter hydrocarbon fraction being immiscible with the VGO-immiscible phosphonium ionic liquid. 12. The process of claim 9 wherein the regeneration solvent comprises water. 13. The process of claim 12 wherein the vacuum gas oil effluent comprises VGO-immiscible phosphonium ionic liquid, further comprising washing at least a portion of the vacuum gas oil effluent with water to produce a washed vacuum gas oil and a spent water stream, the spent water stream comprising the VGO-immiscible phosphonium ionic liquid; wherein at least a portion of the spent water stream is at least a portion of the regeneration solvent. 14. The process of claim 13 further comprising drying at least a portion of the regenerated VGO-immiscible phosphonium ionic liquid stream to produce a dried VGO-immiscible phosphonium ionic liquid stream and recycling at least a portion of the dried VGO-immiscible phosphonium ionic liquid stream to the refractory nitrogen compound removal contacting step. 15. A process for removing a refractory nitrogen compound from a vacuum gas oil comprising: (a) hydroprocessing the vacuum gas oil;(b) contacting the vacuum gas oil comprising the refractory nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a mixture comprising the vacuum gas oil, and the VGO-immiscible phosphonium ionic liquid;(c) separating the mixture to produce a vacuum gas oil effluent with a refractory nitrogen compound level reduced in comparison to the hydroprocessed vacuum gas oil and a VGO-immiscible phosphonium ionic liquid effluent, the VGO-immiscible phosphonium ionic liquid effluent comprising the nitrogen compound;(d) washing at least a portion of the vacuum gas oil effluent with water to produce a washed vacuum gas oil stream and a spent water stream;(e) contacting the VGO-immiscible phosphonium ionic liquid effluent with a regeneration solvent and separating the VGO-immiscible phosphonium ionic liquid effluent from the regeneration solvent to produce an extract stream comprising the nitrogen compound and a regenerated VGO-immiscible phosphonium ionic liquid stream; and(f) drying at least a portion of at least one of the VGO-immiscible phosphonium ionic liquid effluent, the spent water stream, and the regenerated VGO-immiscible phosphonium ionic liquid stream to produce a dried VGO-immiscible phosphonium ionic liquid stream. 16. The process of claim 15 further comprising recycling at least a portion of at least one of the VGO-immiscible phosphonium ionic liquid effluent, the spent water stream, the regenerated VGO-immiscible phosphonium ionic liquid stream, and the dried VGO-immiscible phosphonium ionic liquid stream to the refractory nitrogen compound removal contacting step. 17. The process of claim 15 wherein the refractory nitrogen compound level is reduced by at least 25% by weight. 18. A process for removing a refractory nitrogen compound from a vacuum gas oil comprising: (a) contacting the vacuum gas oil comprising the refractory nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a mixture comprising the vacuum gas oil, and the VGO-immiscible phosphonium ionic liquid;(b) separating the mixture to produce a vacuum gas oil effluent with a refractory nitrogen compound level reduced by greater than 25% by weight in comparison to the vacuum gas oil and a VGO-immiscible phosphonium ionic liquid effluent, the VGO-immiscible phosphonium ionic liquid effluent comprising the nitrogen compound;(c) contacting the VGO-immiscible phosphonium ionic liquid effluent with a regeneration solvent and separating the VGO-immiscible phosphonium ionic liquid effluent from the regeneration solvent to produce an extract stream comprising the nitrogen compound and a regenerated VGO-immiscible phosphonium ionic liquid stream;(d) drying at least a portion of at least one of the VGO-immiscible phosphonium ionic liquid effluent, and the regenerated VGO-immiscible phosphonium ionic liquid stream to produce a dried VGO-immiscible phosphonium ionic liquid stream; and(e) passing the vacuum gas oil effluent to a hydroprocessing step wherein the desulfurization efficiency of the hydroprocessing step is greater than that obtained by hydroprocessing the untreated vacuum gas oil.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (22)
Naeger Dennis P. (The Woodlands TX) Perugini Joseph J. (The Woodlands TX), Crude oil desalting process.
Howard Kent A. (Baton Rouge LA) Mitchell Howard L. (Baton Rouge LA) Waghorne Robert H. (Baton Rouge LA), Liquid salt extraction of aromatics from process feed streams.
Gore, Walter; Bonde, Steve; Dolbear, Geoffrey E.; Skov, Ebbe R., Method of desulfurization and dearomatization of petroleum liquids by oxidation and solvent extraction.
Morris, George Ernest; Lucy, Andrew Richard; Gong, William H.; Regalbuto, Monica Cristina; Huff, Jr., George A., Preparation of components for transportation fuels.
Wasserscheid, Peter; Bösmann, Andreas; Jess, Andreas; Datsevich, Leonid; Schmitz, Christoph; Wendt, Andrea, Process for removing polar impurities from hydrocarbons and mixtures of hydrocarbons.
Olivier Bourbigou,Helene; Uzio,Denis; Magna,Lionel; Diehl,Fabrice, Processing for eliminating sulfur-containing compounds and nitrogen-containing compounds from hydrocarbon.
Kuk Myong S. (Monroeville PA) Albaugh Edgar W. (Monroeville PA) Montagna John C. (O\Hara Township ; Allegheny County PA), Removal of nitrogen from a synthetic hydrocarbon oil.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.