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Physical Chemistry of Aqueous Systems: Meeting the Needs of Industry

ISBN 印刷: 978-1-56700-034-4

ISBN オンライン: 978-1-56700-445-8

BERAVIOUR OF EXTREMELY SMALL AMOUNT OF CORROSIVE IONS IN CYCLE WATER IN A FOSSIL PLANT AND STATE-OF-THE-ARTS CONDENSATE MANAGEMENT SYSTEM FOR FOSSIL PLANTS

要約

To avoid troubles from the influences of corrosive ions in the water and steam of supercritical pressure units, it is important to improve the analytical technology and more accurately control the plant cycle water quality. Electric Power Development Co., Ltd. with Organo Corporation repeated demonstration tests over approx. 2 years at unit No.3 of The Takehara Thermal Power Plant. We developed a new system for greatly improving the operation and management of the condensate demineralizer by continuously measuring the concentration of corrosive ions (Na+, Cl-, and SO42- ) in the plant cycle water, including the inlet water and outlet water of the condensate demineralizer at a very low level of concentration. We measured these concentrations with strict accuracy by means of an on-line ion chromatograph and used the measurement results for feed back to the operation of the condensate demineralizer.
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