id	keyword
brj-22856	catalyst
brj-22856	gas
brj-22856	production
brj-22856	pyrolysis
brj-22856	min
brj-22856	biomass
brj-22856	doi
brj-22856	et al
brj-22856	znzr
brj-22856	straw
brj-22856	nickel