Shell possesses coal gasification technology which can also be used for gasifying biomass , including wood pellets .
壳牌拥有的煤气化技术也可用于包括木屑颗粒在内的生物质气化。
Gasifying coal to produce chemicals emits less carbon dioxide than does burning coal as fuel , but the process still ejects more carbon dioxide into the atmosphere than using natural gas would produce , says eric larson , a research engineer at the princeton environmental institute .
