Study on synthesis of nonionic surfactants from recovered phenol in Vietnam for use in enhanced oil recovery and oil well stimulation
Abstract
Surface active agents (Surfactants) are used the most in industries [4, 5, 7], particularly in the petroleum sector for enhanced oil recovery [3, 8 - 11] and well stimulation with acidic emulsion [2]. Nonionic surfactants in alkylphenol ethoxylate form can be produced from recovered phenol in local factories such as coal tar (Thai Nguyen province) with the amount of phenol that can be recovered reaching nearly 1000 tons per year. Currently, the use of recovered phenol from coal tar of the coke plants in Vietnam has not been economically efficient and Vietnam still has to import nonionic surfactant alkylphenol ethoxylate for use in the domestic industries. In this paper, the authors present a study on synthesis of nonionic surfactants used in enhanced oil recovery and oil well stimulation from recovered phenol of coal tar from the coke factory in Thai Nguyen province.
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