(616b) Application of Induction Heating to Endothermic Reactions
AIChE Annual Meeting
2024
2024 AIChE Annual Meeting
Topical Conference: Decarbonization of the Chemical Industry through Electrification
Decarbonization by Electrification: Thermal Reactors and Reactions II
Wednesday, October 30, 2024 - 3:53pm to 4:11pm
The application of induction heating to supply heat for chemical reactions has garnered attention due to its potential to electrify chemical processes. Induction heating has the potential to enhance both production and energy efficiency, making it a compelling and environmentally friendly heating method for the chemical industry. Induction heating involves the use of a high-frequency alternating magnetic field on ferromagnetic materials, which then produce heat in response to the magnetic field through hysteresis loss and eddy currents. By placing ferromagnetic susceptors inside the catalytic bed, the catalysts can be internally heated within an induction coil. This improves the temperature distribution in the catalyst bed and provides a prompt heating response for temperature control. Traditionally, catalytic reactions rely on furnace reactors that heat the catalyst bed from the reactor walls, resulting in non-uniform temperature distribution and inefficient dehydrogenation. In contrast, induction heating offers the potential to internally heat the catalyst bed, thereby homogenizing temperature distribution and enhancing catalytic performance.
Endothermic reactions play a critical role in the petrochemical industry, but they are known for being highly energy-intensive and facing challenges such as temperature control, catalyst deactivation, and energy consumption. In this presentation, we will provide an overview of the application of induction heating for endothermic reactions, including ethanol-to-1,3 butadiene, propane dehydrogenation, and ethanol-to-acetone processes. We will demonstrate the impact of induction heating on selectivity and reaction mechanism and discuss the impact of temperature distribution and the rapid compensation of heat loss through induction heating on catalyst behavior.