AMINE SULFIDE SCAVENGERS, METHODS OF USING, AND METHODS OF MAKING
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
Nov 23, 2011
filing date -
Nov 23, 2011
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Abstract
Methods for making sulfide scavenging compositions are provided. The compositions are secondary amine-formaldehyde adduct (SAFA) scavengers comprising less than about 40 wt % N-methyl secondary amines therein. The methods include reacting secondary amines with formaldehyde. Methods for removing sulfides from fluid streams are also provided. The methods include adding secondary amine-formaldehyde adduct (SAFA) scavengers to fluid streams. SAFA scavengers comprising less than about 40 wt % N-methyl secondary amines of the total weight of SAFA scavengers are also disclosed.
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