Pyrolysis of sawdust in a conical spouted-bed reactor with a HZSM-5 catalyst

The effect was studied of using in-situ catalyst based on a HZSM-5 zeolite in flash pyrolysis with an inert gas (N-2) of sawdust of pinus insignis in a conical spouted-bed reactor in the 400-500 degrees C range and for a gas residence time of 50 ms The use of the catalyst increases the yield of gase s and decreases the yields of liquid and char. Likewise, the yield of CO2 d ecreases, whereas the yield of C4- hydrocarbons increases (15.9 wt. % at 45 0 degrees C). The catalyst is efficient for partial deoxygenation of the li quid product.