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India | Power Engineering | Volume 14 Issue 8, August 2025 | Pages: 66 - 71
THERMACT-Effective Remedial Solution for Removal of Slag and Clinker in Power Plant Boilers
Abstract: Boiler slagging and clinker formation are persistent challenges in coal-fired power plants, adversely impacting heat transfer, boiler efficiency, and overall plant availability. Conventional mechanical cleaning techniques often require costly shutdowns and offer limited efficacy. This paper presents THERMACT, a multifunctional combustion catalyst developed by Abhitech Energycon Ltd. in collaboration with IIT Bombay, as an effective remedial solution to mitigate slag and clinker formation without additional capital investment. Through catalytic enhancement of combustion, THERMACT reduces activation energy, improves flame stability, and optimizes heat distribution. Field applications demonstrate significant reductions in flue gas exit temperature, unburnt carbon, auxiliary power consumption, and tube metal temperatures. Analytical tools such as furnace temperature mapping, ash fusion temperature analysis and scanning electron microscopy (SEM) confirm the improved combustion characteristics and ash behaviour. This paper consolidates operational insights, performance benefits, and scientific evaluations of THERMACT, establishing it as a proven solution for enhancing boiler reliability and efficiency across diverse coal blends. This product is being used by coal fired power plant of 210 MW to 830 MW capacity in India as well as overseas for more than 15 years.
Keywords: Clinker, Slag, Combustion catalyst, Activation energy, Unburnt carbon, Boiler efficiency, Ash fusion temperature, Deformation Temperature (DT), Softening Temperature (ST), Hemispherical Temperature (HT), Flow Temperature (FT)
How to Cite?: R M Sankhe, "THERMACT-Effective Remedial Solution for Removal of Slag and Clinker in Power Plant Boilers", Volume 14 Issue 8, August 2025, International Journal of Science and Research (IJSR), Pages: 66-71, https://www.ijsr.net/getabstract.php?paperid=SR25731175819, DOI: https://dx.doi.org/10.21275/SR25731175819
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