id	keyword
ajst-20220	carbon
ajst-20220	energy
ajst-20220	coal
ajst-20220	efficiency
ajst-20220	cogeneration
ajst-20220	emissions
ajst-20220	system
ajst-20220	method
ajst-20220	consumption
ajst-20220	power
ajst-20220	heat
ajst-20220	heating