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Degasification with Liqui-Cel® Membrane Contactors
This paper describes Membrana’s Liqui-Cell membrane contactor. Locating a Liqui-Cell unit after reverse osmosis units can extend the life of ion exchange beds and enhance electrodeionization (EDI) performance.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Membrana, Membrane Filter, Ultrapure Water, Degasification
The reducing environment produced by oxygen scavengers initiates and propagates flow-accelerated corrosion (FAC) in the feedwater system and other components of high-pressure steam generators, including heat recovery steam generators (HRSGs). Since 1986, FAC-induced attack has caused numerous failures, some with fatalities, at a number of power plants in the U.S. Yet, specifications for many new power plants both domestically and globally, and in which the condensate/feedwater system contains no copper alloys, continue to call for oxygen scavenger feed to the condensate. This document is a response to this misguided trend.
Revision Date: 8/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, Kiewit, Boiler Feedwater System, Heat Recovery Steam Generator, Ultrapure Water, Corrosion, Demineralization, Boiler Feedwater Treatment, Degasification
A systematic study of the influence of system design, station operations and cycle chemistry on corrosion product generation and flow-accelerated corrosion (FAC) was carried out at Intergen’s Coryton CCGT in Essex, UK. Coryton is a 779 MW two-by-one combined-cycle natural gas plant equipped with an air-cooled condenser (ACC). The station wanted to invest in advanced monitoring techniques with the objective of reducing corrosion in the air-cooled condenser and the potential for FAC in the heat recovery steam generator (HRSG) during normal and cycling operations, and to determine the impact of cycling operation on unit life expectancy and reliability.
Revision Date: 8/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, Nalco, Heat Recovery Steam Generator, Air Cooled Condenser, Cooling System, Corrosion, Degasification, Demineralization, UK
Our water treatment experts can create a tailor-made ultrapure water system for clients using industry-proven continuous electrodeionization (CEDI) water treatment technologies. These solutions, which meet stringent industry standards, are capable of providing reliable, chemical-free operation. They also deliver users a continuous supply of high-quality water with a resistivity of up to 16 Mohm/cm, that is, <0.1 µS/cm.
Revision Date: 8/20/2014
Tags: Geothermal 地热的, RWL Water, Demineralizer, Electrodialysis, Ion Exchange, Electrodeionization, Ultrapure Water, Degasification, Demineralization
Hach Supplies Instruments to Measure Boiler Feedwater Quality
The performance of the degasification and demineralization system is dependent on accurate measurement of oxygen and other parameters. Hach supplies a variety of instruments to accurately measure the important parameters
Revision Date: 8/18/2014
Tags: 221112 - Fossil Fuel 化石燃料, Hach, Degasification, Boiler Feedwater Monitoring System, Demineralizer, Schematic, Monitoring, Degasification, Boiler Feedwater Treatment, Demineralization