id	keyword
cet-14988	process
cet-14988	energy
cet-14988	carbon
cet-14988	ctbdo
cet-14988	coal
cet-14988	production
cet-14988	unit
cet-14988	hydrogen
cet-14988	carbide
cet-14988	gas
cet-14988	reconfiguration
cet-14988	emissions