نوع مقاله : مقاله پژوهشی
نویسندگان
گروه پژوهش خوردگی فلزات، پژوهشکده حفاظت صنعتی، پژوهشگاه صنعت نفت، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this study, the reasons for both sediment formation in a chlorinator instrument and erosion of some of its components have been investigated. This system was used to inject chlorine gas to cooling water. Visual examination clearly demonstrated the formation of gray sediments in the inner side of the chlorinator chamber along with the erosion. Furthermore, the excessive accumulation of white precipitated materials has blocked the glassy tube of the chlorinator. These events, however, have made the chlorinator system inefficient. The results of TGA, FTIR, and EDS analyses have clearly shown the best match between both unknown deposits and PVC materials. The portion of minerals in both gray and resinous white sediment materials was determined to be 28.51 and 16.7% respectively. Metallic elements such as iron and copper were also identified in the composition of sediment materials by EDS analysis. Additionally, the existence of intramolecular water in the mineral portion of the deposited materials was clearly demonstrated in the FTIR spectra. On the whole, it seems that wet chlorine has a crucial role in the erosion of chlorinator parts and subsequent deposit formation.
کلیدواژهها [English]
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