Baker Hughes, a Ge Compnay, LLC

Baker Hughes Corporation

Baker Hughes Holdings LLC

Hua Mo

Roger D Metzler

Hsi-Yi Huang

At least one pH-sensitive component may contact a refinery stream for measuring the pH of the refinery stream. A light from a light source may be emitted onto the pH-sensitive component, and a detector may detect a first luminescence or color change of chromophore measurement radiated from the pH-sensitive component. A first pH of the refinery stream may be determined from the first luminescence or color change of chromophore measurement.

Methods of measuring pH in refinery streams

The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include at least one hydroquinone, such as but not limited to, 2,6-di-tert-butyl hydroquinone, 2,5 di-tert-butyl hydroquinone, 3,5 di-tert-butyl hydroquinone, 3,5 di-methyl hydroquinone, 3,6 di-tert-butyl hydroquinone, and combinations thereof. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.

Hydroquinone compounds for inhibiting monomer polymerization

The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include a first compound: 

Quinone compounds for inhibiting monomer polymerization

Sodium borohydride (NaBH) may be used to removing carbonyl sulfide (COS) from a process stream containing it. The method involves contacting the process stream with an amount of effective of NaBHto react with the COS to form reaction products that may be removed by a process of washing away the reaction product by an aqueous basic compound and/or the reaction product having a higher boiling point than carbonyl sulfide which permits trapping the reaction product, such as in a caustic tower.

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Friendswood, TX, United States of America

Hua Mo