[Gasification] Combustion vs. gasification

[Robert Kana]

Good morning,
Does anybody know any scientific comparison between combustion and 
gasification? Argument is that  wood chips fired steam boilers and 
turbines are more efficient than syngas fired duel fuel diesel 
generators. Any manufacturer has gas turbines small enough to use in 2 
MW power generating? Thanks in advance,
Robert Kana, Biomass Energy Indonesia