shahzad, khurram, Mahmood Saleem, Waqar Ali Khan, Najaf Awan, and Niaz Ahmed Akhtar. “Parametric Study of NOx Emissions in Circulating Fluidized Bed Combustor”. Journal of the Pakistan Institute of Chemical Engineers 40, no. 1 (November 14, 2012): 61–68. Accessed April 19, 2024. http://piche.org.pk/journal/index.php/jpiche/article/view/71.