Process for reducing the naphthenic acidity of petroleum oils
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-025/00
C10G-025/12
출원번호
US-0513013
(2006-08-31)
등록번호
US-7504023
(2009-03-17)
우선권정보
BR-0202552(2002-07-05)
발명자
/ 주소
Chamberlain Pravia,Oscar Ren��
Cerqueira,Henrique Soares
Moreira,Elizabeth M.
Alvarenga Baptista,Cl��udia Maria de L.
Gomes,Jefferson Roberto
Bugueta,Paulo C��sar Peixoto
출원인 / 주소
Petroleo Brasileiro S.A.
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
10인용 특허 :
22
초록▼
A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compo
A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compounds. Preferred adsorbents are the spent or coked FCC catalysts.
대표청구항▼
What is claimed is: 1. A method for reducing a naphthenic acidity of a feedstock of petroleum oils or of their liquid fractions, the method comprising the steps of: feeding the feedstock to a reactor; contacting, in the reactor, the feedstock with an adsorbent to cause a reduction of the napthenic
What is claimed is: 1. A method for reducing a naphthenic acidity of a feedstock of petroleum oils or of their liquid fractions, the method comprising the steps of: feeding the feedstock to a reactor; contacting, in the reactor, the feedstock with an adsorbent to cause a reduction of the napthenic acidity of the feedstock, wherein the adsorbent comprises a spent or coked FCC catalyst having a surface area of 60 to 250 m2/g, wherein a ratio of adsorbent to feedstock ranges from 0.1 to 5, wherein the reactor has a temperature between 200�� C. and 500�� C. and a pressure of 0.01 to 0.3 MPag, wherein the reactor has a residence time of between 1 second and 2 hours, wherein an effluent exiting the reactor comprises a treated feedstock with a reduced naphthenic acidity and the adsorbent, and wherein the reduction of the napthenic acidity of the feedstock occurs substantially by thermal treatment; and separating, in a liquid/solid separation system, the treated feedstock from the adsorbent. 2. The method of claim 1, wherein the reduction of the napthenic acidity of the feedstock does not occur as a result of either contacting the feedstock with an alkali aqueous solution or a reaction in the presence of hydrogen. 3. The method of claim 1, wherein the reactor has a temperature between 250�� C. and 350�� C. 4. The method of claim 1, wherein the feedstock has a water content of less than 0.1% by weight. 5. The method of claim 1, wherein the surface area of the adsorbent is from 100 to 200 m2/g. 6. The method of claim 1 further comprising the steps of: treating the adsorbent with an alkaline solution prior to the step of contacting the feedstock with the adsorbent, wherein the concentration of an alkaline base of the alkaline solution is in the range of from 5 to 15% by weight, and wherein a mass ratio of alkaline base to mass of the adsorbent is from 0.05 to 0.5; and drying the adsorbent through exposure to a temperature between 100 and 120�� C. for 10 to 16 hours. 7. The method of claim 6, wherein the alkaline base comprises a metal hydroxide of group IA. 8. The method of claim 6, wherein the alkaline base comprises a metal hydroxide of group IIA. 9. The method of claim 6, wherein the alkaline base comprises ammonium hydroxide. 10. The method of claim 6, wherein the alkaline base is selected from the group consisting of a metal hydroxide of group IA, a metal hydroxide of group IIA, ammonium hydroxide, and a mixture thereof. 11. The method of claim 1, wherein the liquid/solid separation system is selected from the group consisting of a cyclone, a hydrocyclone, and a centrifuge.
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이 특허에 인용된 특허 (22)
Bricker Jeffery C. (Buffalo Grove IL) Frame Robert R. (Glenview IL), Catalytic composite and process for mercaptan sweetening.
Carlson ; David H. J. ; Urban ; Peter, Catalytic oxidation of mercaptans and removal of naphthenic acids, catalyst toxins, and toxin precursors from petroleum.
Stine Laurence O. (Western Springs IL) Bricker Jeffery C. (Buffalo Grove IL) Thompson Gregory J. (Waukegan IL) Verachtert Thomas A. (Wheeling IL), Elimination of caustic prewash in the fixed bed sweetening of high naphthenic acids hydrocarbons.
Furuta Akio (Handa JPX) Sato Kunio (Handa JPX) Sato Kazuo (Handa JPX) Matsuzawa Tooru (Handa JPX), Method for removing mercury from a liquid hydrocarbon.
Gorbaty Martin L. ; Martella David J. ; Sartori Guido ; Savage David William ; Ballinger Bruce Henry ; Blum Saul Charles ; Anderson Michael Paul ; Ramanarayanan Trikur Anantharaman, Process for neutralization of petroleum acids using overbased detergents.
Sartori Guido ; Savage David William ; Olmstead William Neergaard ; Robbins Winston Karl ; Dalrymple David Craig ; Ballinger Bruce Henry, Process for treatment of petroleum acids with ammonia.
Ohsol Ernest O. ; Gillespie Thomas E. ; Pinkerton John W., Process to upgrade crude oils by destruction of naphthenic acids, removal of sulfur and removal of salts.
Gordon, John Howard; Alvare, Javier, Device and method for upgrading petroleum feedstocks and petroleum refinery streams using an alkali metal conductive membrane.
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