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10050 Optimization of Cooling Water System Passivation of Brass Alloys in Petrochemical Facilities

Picture for 10050 Optimization of Cooling Water System Passivation of Brass Alloys in Petrochemical Facilities
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Product Number: 51300-10050-SG
ISBN: 10050 2010 CP
Author: Bill G. Santos, Chris Friesen and Mohammed Kashanian
Publication Date: 2010
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$20.00
$20.00
In order to optimize a corporate cooling water program, real-world plant experience along with a series of laboratory experimental studies is being used. All aspects of the program are being considered, including passivation treatments for individual bundles, system pre-film solutions, and long-term cooling water chemistries. The aim of the optimization plan is to select the most favorable combination of passivation, pre-film, and cooling water solutions that provides the most cost-effective protection of the system within defined performance targets that the vendor must deliver.

This paper will present results of electrochemical laboratory studies designed to provide an understanding of how each part of the program functions. The focus in this paper will be on the passivation and protection of brass (Admiralty and Naval) heat exchangers with various yellow metal inhibitors including benzotriazole (BZT), comparing its performance with a new proprietary azole inhibitor (PTA) and their compatibility with a phosphate-based cooling water program.

Keywords: cyclic voltammetry, cooling water, Naval brass, benzotriazole, open circuit potential
In order to optimize a corporate cooling water program, real-world plant experience along with a series of laboratory experimental studies is being used. All aspects of the program are being considered, including passivation treatments for individual bundles, system pre-film solutions, and long-term cooling water chemistries. The aim of the optimization plan is to select the most favorable combination of passivation, pre-film, and cooling water solutions that provides the most cost-effective protection of the system within defined performance targets that the vendor must deliver.

This paper will present results of electrochemical laboratory studies designed to provide an understanding of how each part of the program functions. The focus in this paper will be on the passivation and protection of brass (Admiralty and Naval) heat exchangers with various yellow metal inhibitors including benzotriazole (BZT), comparing its performance with a new proprietary azole inhibitor (PTA) and their compatibility with a phosphate-based cooling water program.

Keywords: cyclic voltammetry, cooling water, Naval brass, benzotriazole, open circuit potential
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Failures of Brass Components in Water and Steam Systems

Product Number: 51317--9123-SG
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Case histories will illustrate failures that occurred in components that were made of different brass alloys in water and steam systems. Recommendations will be made to mitigate the damage that occurred in each case.
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96263 ENVIRONMENTAL ASSISTED CRACKING OF BRASS VALVES IN POTABLE WATER SERVICE

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