[특허]Method for removing metals and amines from crude oil

Method for removing metals and amines from crude oil 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C10G-017/04 C10G-017/09 C10G-033/02 C10G-033/04 C10G-017/02
출원번호	US-0563583 (2009-09-21)
등록번호	US-9790438 (2017-10-17)
발명자 / 주소	Garcia, III, Juan M. Lordo, Samuel A. Braden, Michael L.
출원인 / 주소	ECOLAB USA INC.
대리인 / 주소	Babych, Eric D.
인용정보	피인용 횟수 : 0 인용 특허 : 52

초록 ▼

A method of removing metals and amines from crude oil is provided. The method includes adding an effective metal removing amount of one or more hydroxycarboxylic acids selected from lactic acid and malic acid and salts thereof to the crude oil; adding wash water to the crude oil; mixing the crude oil, acid and wash water to form an emulsion; and resolving the emulsion into an aqueous phase and crude oil having a reduced metals content.

대표청구항 ▼

1. A method of removing metals and amines from crude oil comprising adding a 50% aqueous solution of malic acid or a salt thereof to said crude oil; separately adding wash water to said crude oil and mixing said crude oil, acid and wash water to form an emulsion; and resolving said emulsion into an aqueous phase and crude oil having a reduced metals and amines content, wherein the malic acid or salt thereof is added to the crude oil upstream of the wash water, further wherein the malic acid or salt thereof is added to the crude oil before it arrives at any desalter units. 2. The method of claim 1 wherein the metal is calcium. 3. The method of claim 1 wherein the pH of the separated aqueous phase is about 3-6. 4. The method of claim 1 further comprising adding one or more demulsifiers to the crude oil or the wash water. 5. The method of claim 1 further comprising adding one or more corrosion inhibitors to the crude oil or the wash water. 6. The method of claim 1 further comprising adding one or more metal complexing agents, not including malic acid and lactic acid, to the crude oil or the wash water. 7. The method of claim 6 wherein one or more corrosion inhibitors are added to the wash water. 8. The method of claim 1 wherein said emulsion is resolved using electrostatic coalescence. 9. The method of claim 1 wherein the crude oil is petroleum crude. 10. The method of claim 9 wherein the petroleum crude comprises Doba crude. 11. An improved refinery desalting process for removing metals and amines from crude oil comprising (i) providing crude oil;(ii) adding wash water to the crude oil;(iii) mixing said crude oil and said wash water to form an emulsion; and(iv) resolving the emulsion to provide an aqueous phase and crude oil having a reduced metal and amine content, the improvement comprising adding a 50% aqueous solution of malic acid or a salt thereof to the crude oil separate from addition of the wash water, wherein the malic acid or salt thereof is added to the crude oil upstream of the wash water, further wherein the malic acid or salt thereof is added to the crude oil before it arrives at any desalter units. 12. The method of claim 1, wherein an amount of the malic acid or the salt thereof added to the crude oil is from 500 ppm to 2,000 ppm. 13. A method of removing metals and amines from crude oil comprising adding an aqueous solution comprising from about 40 weight % to about 70 weight % of malic acid or a salt thereof to said crude oil; separately adding wash water to said crude oil and mixing said crude oil, acid and wash water to form an emulsion; and resolving said emulsion into an aqueous phase and crude oil having a reduced metals and amines content, wherein the malic acid or salt thereof is added to the crude oil upstream of the wash water, further wherein the malic acid or salt thereof is added to the crude oil before it arrives at a desalter unit.

이 특허에 인용된 특허 (52)

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McCoy David R. (Austin TX) Cuscurida Michael (Austin TX) Speranza George P. (Austin TX), Demulsification of bitumen emulsions using water soluble epoxy-containing polyethers.
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Kremer Lawrence N. (Woodlands TX), Demulsifying composition.
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McCullough T. Miles (Houston TX), Emulsion minimizing corrosion inhibitor for naphtha/water systems.
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Lewis Vincent E. (Missouri City TX) Fisher Sherri L. (Sugar Land TX), Ethylene plant caustic system emulsion breaking with salts of alkyl sulfonic acids.
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Jacobs Jack H. (St. Louis MO) Thomas Matthew M. (Madison IL) Grosskrueger Duane D. (Highlands Ranch CO) Carpenter Bernie F. (Littleton CO) Perry Alan R. (Morrison CO), Fabrication method for composite structure adapted for controlled structural deformation.
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Method for removing metals and amines from crude oil 원문보기

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