Baker Hughes, a Ge Compnay, LLC

Baker Hughes Holdings LLC

Baker Hughes Corporation

David N Fulmer

Mary Jane Legaspi Felipe

Khac Truc Nguyen

Montgomery A Pifer

Bing Bing Guo

Lawrence N Kremer

Corina Sandu

Joey Dacula Mangadlao

Mary Jane Felipe

Stephen J Wiacek

Sidney A Dunn

Ramakrishna Ponnapati

Regis R Rumpf

Anthony Taglione

Sara Hartranft

William Mansfield

William Watson

Timothy Ray Underwood

Chelsea Eaton

Albert Sidney Dunn

Hiaiping Lu

Montgomery Pifer

A cleaning agent comprising a polyacrylate terpolymer and a maleic olefin compound may be added to an aqueous system having a metal surface, such as a metal surface of a heat exchanger, in a concentration sufficient to remove fouling deposits from the metal surface in neutral or alkaline conditions. The removal of fouling deposits with the application of the cleaning agent may occur while the system is shut down or in service.

Cleaning agent comprising a polyacrylate terpolymer for removal of fouling deposits from metal surfaces

A polyhydroxypolycarboxylic acid and a water soluble phosphino polycarboxylate may be added to an aqueous system, such as a cooling water system, in order to inhibit corrosion as well as the deposition of corrosion within the system. The water soluble phosphino polycarboxylate may be derived from a phosphinyl unsaturated monomer and an ethylenically unsaturated carboxylic acid monomer. The aqueous system may be a cooling water system such as a cooling tower, a closed cooling water system, an air-conditioning water systems, a wastewater treatment system as well as a deionized water production system.

Use of phosphino polymer and polyhydroxypolycarboxylic acid as corrosion inhibitor

An additive comprising one or more C-Chydroxycarboxylic acids and/or one or more C-Chydroxycarboxylic acid salts may be added to an aqueous system having galvanized metallurgy or a carbon steel surface in an effective amount to passivate a galvanized coating on the metallurgy or to decrease white rust formation or other types of corrosion upon the galvanized metallurgy or carbon steel surface in an aqueous system. In a non-limiting embodiment, the C-Chydroxycarboxylic acid or the C-Chydroxycarboxylic acid salt additive may utilize the zinc in the galvanized coating to achieve passivation. The passivation may occur while the system is shut down or in service. The aqueous system may be or include a cooling tower, a cooling water system, and combinations thereof. The additive may be used with or in the absence of a phosphorous-containing compound.

Corrosion inhibitors for passivation of galvanized coatings and carbon steel

Monitoring of conductivity within a steam generating system may proceed in real time and without interruption of the steam generating system by use of a boron doped diamond based electrochemical band sensor placed within the steam generating system. The boron doped diamond based electrochemical band sensor has a diamond body and a plurality of boron doped diamond band electrodes disposed within the diamond body. At least a portion of each of the plurality of boron doped diamond band electrodes is doped with boron to provide metallic conduction.

Method of measuring and monitoring conductivity in-situ in high temperature aqueous systems

Water-soluble polymers may be added to an aqueous system to inhibit or decrease scale deposition within the aqueous system. In a non-limiting embodiment, the water-soluble polymer(s) may be or include polymaleates, polyacrylates, copolymers thereof, and combinations thereof. The treated aqueous system may include a decreased amount of scale deposition as compared to an otherwise identical aqueous system absent the water-soluble polymer(s).

Methods of decreasing scale in aqueous systems

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Missouri City, TX, United States of America

David N Fulmer