Abstract
Formation of mineral scales poses significant problem in cooling water system. Fouling and scaling on heat transfer surface reduces the efficiency of heat exchangers. The design of heat exchangers takes into account the decrease of heat transfer by increasing the heat transfer area. The water soluble polyelectrolyte of maleic acid and acrylic acid was synthesized for testing of their antiscaling and sequestering properties. The characterization of these polyelectrolytes was done by measuring the viscosity and through FTIR analysis. Antiscaling properties of polymaleic acid and sequestering capacity of polyacrylic acid were studied at different concentrations from 100–500 ppm and temperatures from 60–80°C. It was found that the polymaleic acid showed good inhibition efficacy, i.e., 88.95% at 60°C and the 500 ppm concentration for calcium carbonate scale formation, while the sequestering capacity of the polyacrylic acid was 327.50 at 100 ppm concentration and at 60°C. These results were confirmed by measuring the conductivity of the solution.
Published Version
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