期刊
DESALINATION
卷 355, 期 -, 页码 33-44出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2014.10.010
关键词
Calcium sulphate; YMR-polymers; Antiscalants; Pipe flow system; Temperature effects
资金
- Research Administration of Kuwait University [RE 05/06]
The precipitation of calcium sulphate scale on heat transfer surfaces widely occurs in numerous industrial processes. For the control of calcium sulphate scale and in response to environmental guidelines, the low molecular weight maleic anhydride copolymers (YMR-series polymers) were evaluated for their scale inhibition property towards CaSO4 scales in the artificial cooling water for steel (316L) and copper (90/10, Cu-Ni alloy) pipes using a pipe flow system at various temperatures. The relationship between deposited scale mass and temperature was deduced from experimental data. The effect of antiscalants on formation of CaSO4 was investigated with scanning electronic microscopy (SEM). Several forms of hydrated calcium sulphate were created at high temperature. The results showed that the low molecular weight YMR-polymers were excellent calcium sulphate scale inhibitor in copper and steel pipe flow system showing inhibition up to 95% at 70 degrees C. (C) 2014 Elsevier B.V. All rights reserved.
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