Decarbonisation Technology - August 2024 Issue

Examples of typical MBHE installations



( Source: Solex Thermal Science)

on reducing carbon footprints through smart technologies and smarter energy consumption. Global climate policies, geopolitical factors, and public pressure for net zero commitments will continue to ramp up, thereby pushing industries to keep adopting advanced carbon-reducing strategies and enhance their energy efficiency. HPHEs and MBHEs will play leading roles in this energy transition. One offers a proven solution for capturing difficult-to-recover heat such as hot and/or dirty exhausts, while the other provides a means to transfer energy to and from free-flowing granular materials. Both enhance overall industrial efficiency and stability, contributing to a shift in what is considered possible in both traditional and non-traditional processing industries. Whether it comes to reusing industrial waste heat in metallurgical processes or providing a more efficient heat exchange solution during automotive parts casting, we are only beginning to uncover the potential of today’s heat integration technologies.

on continuous operations, including nearly 12 tons of net CO₂ reduction. Case study 3: Slag cooling and vertical tube MBHE Platinum is an essential material in vehicle catalytic converters, which reduce nitrogen oxide emissions from hydrocarbon fuel combustion. During platinum production, the slag byproduct must be cooled from a molten state at around 1,500°C to ambient temperature for safe handling. This cooling is typically achieved through granulation, transforming the liquid slag into a solid form. Even after solidification, the slag retains a significant amount of energy. With a slag production rate of 100 tons per hour, a vertical tube MBHE can cool granulated slag from 1,000°C to 350°C, recovering about 20 MW of thermal energy. When this thermal energy is used with a heat recovery steam generator and a steam turbine operating at roughly 65% efficiency, it can generate nearly 13 MW of electrical energy, enough to power approximately 100 electric vehicle superchargers. Conclusion Achieving a more sustainable energy future relies

Warren Chung warren.chung@solexthermal.com

www.decarbonisationtechnology.com

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