Journal of Applied Electrochemistry, Vol.48, No.12, 1381-1388, 2018
On the regeneration of thermally regenerative ammonia batteries
In the past few years, thermally regenerative ammonia battery (TRAB) has been proposed as an effective tool to recover waste heat at temperatures below 130 degrees C. Most of the literature available is devoted to the power production step, with less attention being given to the regeneration step (e.g. the removal of ammonia from the anolyte). In this paper, the TRAB is analyzed with particular attention to the regeneration step and to the study of various generation of energy-regeneration cycles. It was shown that approximately 90 degrees C is necessary for the regeneration step due to the fact that ammonia is present in the anolyte mainly as a complex. Various cycles were performed with success, demonstrating the efficacy of the proposed regeneration step. [GRAPHICS] .
Keywords:Thermally regenerative ammonia battery;TRAB;TREC;Regeneration;Waste heat;Ammonia-copper complex