Evaluation of calorific value of gas under assumption of pine combustion in a steelmaking converter.

For achievement of more energy, this work proposes an idea that using high temperature physic heat in a steelmaking converter to carbonise and combust pine timber generates more CO. By establishing the various pine injection systems, the calorific value of gas generated is evaluated and discussed based on heat balance. Results show that the best time for pine injection is at the middle stage of gas recovery. Under a heat supplement of 50 K, the masses of carbon consumed and CO generated in steelmaking systems with pine injection are respectively 61 to 610 kg and 142 to 1442 kg, and the increased percentage of calorific value of CO is 6.59% to 65.9%. To sum up, this novel process is promising for tackling waste timber to generate gas. [ABSTRACT FROM AUTHOR]