id	keyword
brj-22464	heat
brj-22464	ash
brj-22464	energy
brj-22464	et al
brj-22464	waste heat
brj-22464	doi
brj-22464	recovery
brj-22464	utilization
brj-22464	heat recovery
brj-22464	temperature
brj-22464	phase
brj-22464	change
brj-22464	materials
brj-22464	efficiency
brj-22464	coal
brj-22464	article