Additive and method for removal of impurities formed due to sulfur compounds in crude oils containing calcium naphthenate
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United States of America Patent
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Mar 25, 2014
Grant Date -
Nov 15, 2012
app pub date -
Dec 28, 2010
filing date -
Dec 31, 2009
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Abstract
An additive capable of avoiding formation of impurities and capable of removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound including H2S in presence of water in mixture of crude oils containing calcium naphthenate and sulfur compound or H2S, wherein the additive is glyoxylic acid is provided. A method for avoiding formation of impurities and for removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound including H2S in presence of water in mixture of crude oils containing calcium naphthenate and sulfur compound including H2S, comprising treating mixture of crude oils containing calcium naphthenate and sulfur compound or H2S with glyoxylic acid is also provided.
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