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Ammonia as a Byproduct of Waste Heat Recovery of Oven Exhaust

[+] Author Affiliations
Helen Skop

ERB CORE, Skokie, IL

Alice Chudnovsky

Roycemore School, Evanston, IL

Paper No. HT2013-17723, pp. V004T13A007; 4 pages
  • ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology
  • Volume 4: Heat and Mass Transfer Under Extreme Conditions; Environmental Heat Transfer; Computational Heat Transfer; Visualization of Heat Transfer; Heat Transfer Education and Future Directions in Heat Transfer; Nuclear Energy
  • Minneapolis, Minnesota, USA, July 14–19, 2013
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-5550-8
  • Copyright © 2013 by ASME


The Industrial Revolution in the nineteenth century has introduced chemical leavening agents such as baking soda. In today’s Biscuit and Cracker Industry, ammonia is one of the most common ingredients for the bakery product. According to the EPA, ammonia vapor constitutes about 99% of total emissions from a biscuit oven. Air control equipment, such as catalytic oxidizers, is often installed at bakeries to convert the NH3 to nitrogen and NOx. It is a highly expensive and complicated method of controlling pollution. Integration of waste heat recovery and ammonia extraction processes gives us an effective, non-expensive and more natural solution to this problem. This method can be accomplished by using the solubility property of ammonia for the process of exhaust cooling and condensation with high moisture content.

Copyright © 2013 by ASME



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