id	keyword
cet-14993	co2
cet-14993	meoh
cet-14993	energy
cet-14993	process
cet-14993	reaction
cet-14993	column
cet-14993	distillation
cet-14993	hydrogenation
cet-14993	chemical
cet-14993	desorption
cet-14993	mea