id	keyword
cet-15008	process
cet-15008	butylene
cet-15008	oxide
cet-15008	production
cet-15008	chlorohydrin
cet-15008	reaction
cet-15008	butene
cet-15008	chp
cet-15008	butylene oxide
cet-15008	market
cet-15008	chinese