Patent ID: 8523496
Filing Date: 2013-09-03
Classification: B01J,B65G,F23G,F23K

Abstract:
1. A process for conveying solid particulate biomass material to a pyrolysis reactor, said process comprising the steps of: a) providing a spool piece having a pressure vent, an inlet valve and an outlet valve; wherein said outlet valve is connected in fluid flow communication with said pyrolysis reactor; b) closing said outlet valve; c) opening said inlet valve; d) charging a quantity of said solid particulate biomass material to said spool piece through said inlet valve at a pressure P e) closing said inlet valve; f) pressurizing said spool piece to a pressure P g) opening said outlet valve and conveying said quantity of said solid particulate biomass material from said outlet valve to said pyrolysis reactor operated at or below pressure P h) closing said outlet valve; i) opening said pressure vent to reduce the pressure in said spool piece to P j) closing said pressure vent, wherein at least a portion of said conveying of step g) is by use of a screw feeder connected in fluid flow communication with said spool piece and with said reactor.