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Condensate system Company: Hynix Semiconductor, South Korea Description of the problem and its negative consequences To manufacture microchips there is a lot of steam needed. This steam is produced central in several big steam boilers, and is distributed to separate buildings of the plant. The condensate is in a special piping system brought back to the boilers and reused to produce steam. The condensate system at Hynix is several kilometres long and has started to corrode. Measurements of the condensate have an average of 2,5ppm iron shown. The internal quality requires feed water for the boilers with an iron content of less than 0,1ppm. Due to this fact, the condensate which has already a high purity and temperature couldn't be used again in the boilers. Several 100m3 condensate per day couldn't be reused. The solution Merus was installed at several strategic places throughout the condensate system. During the test, where several more place located where more devices has to be installed in order to get a satisfying result. In which way the customer checked the results of the trial The iron content in the condensate was regularly checked by the laboratory of the client. The first weeks after the installation, not so much difference could be seen. All of a sudden, the iron content has increased very much. During several month of operation the iron in the condensate got less and less, until the value has stabilized at an average of 0,05ppm iron. The client is now again able to reuse the condensate to produce new steam. It is not only a lot of water saved, but as well the expensive chemical preparation and the energy for heating fresh water. See
Video Presentation of Merus USA®
(English) |
