13-06-2019 дата публикации
Номер: US20190177599A1
Принадлежит:
Methods of treating a petroleum hydrocarbon fluid are described wherein the petroleum hydrocarbon fluid is contacted with an asphaltene inhibitor composition having an ionic liquid and an asphaltene inhibitor. The ionic liquid has a cation of RRRRN or RRRNRNRRRand an anion, wherein R, R, R, R, R, Rand Rare independently selected from hydrogen, a straight or branched Calkyl group, benzyl, a Calkylbenzyl group, a Carylalkyl group, a straight or branched Calkenyl group, a Chydroxyalkyl group, a Chydroxyalkylbenzyl group, an oxyalkylene or a polyoxyalkylene group or a zwitterion; Ris a straight or branched Calkylene, an alkylene oxyalkylene or an alkylene polyoxyalkylene; and the anion includes halides, hydroxyl, bicarbonate, carbonate, alkyl carbonates, alkoxides, carboxylates, hydroxycarboxylates or a combination thereof. 1. A method of enhancing the performance of an asphaltene inhibitor during production , storage , transportation or refining of a petroleum hydrocarbon fluid , the method comprising contacting the asphaltene inhibitor with an ionic liquid during a production or refining operation or prior to or during storage or transportation of the petroleum hydrocarbon fluid , wherein the ionic liquid has a cation of RRRRN or RRRNRNRRRand an anion , wherein R , R , R , R , R , Rand Rare independently selected from hydrogen , a straight or branched Calkyl group , benzyl , a Calkylbenzyl group , a Carylalkyl group , a straight or branched Calkenyl group , a Chydroxyalkyl group , a Chydroxyalkylbenzyl group , an oxyalkylene or a polyoxyalkylene group or a zwitterion; Ris a straight or branched Calkylene , an alkylene oxyalkylene or an alkylene polyoxyalkylene; and the anion comprises halides , hydroxyl , bicarbonate , carbonate , alkyl carbonates , alkoxides , carboxylates , hydroxycarboxylates or a combination thereof.2. The method of claim 1 , wherein at least one of the following conditions prevail:{'sup': 1', '2', '3', '4', '5', '6', '7, 'sub': '1-20', '(a) R, R, ...
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