DEHYDRATING AND DESALTING COMPOSITIONS OF CRUDE OILS, USING TRIBLOCK COPOLYMERS ALPHA,OMEGA-BIFUNCTIONALIZED WITH AMINES
申请人:INSTITUTO MEXICANO DEL PETROLEO
公开号:US20140238901A1
公开(公告)日:2014-08-28
Compositions consisting of block copolymers α,ω-di-aryl or alkyl sulfonates of poly(ethylene oxide)
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-poly(propylene oxide)-poly(ethylene oxide)
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of bis-ammonium and block copolymers α,ω-di-amine of poly(ethylene oxide)
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-poly(propylene oxide)-poly(ethylene oxide)
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, are provided that are effective in the dewatering and desalting crude oils whose specific gravities are within the range of 14 to 20° API. A method of dewatering and desalting heavy crude oil adds a mixture of the copolymer bifunctionalized with an aliphatic or aromatic secondary amine and a copolymer bifunctionalized with an aliphatic or aromatic tertiary amine.