Patent ID: 9657249
Date: 2017-05-23
CPC Classifications: B01J,C10J,C10L,Y02E

Claim:
1. A device for discharging pretreated lignocellulosic biomass from a pressurised biomass pretreatment device at high pressure, comprising a substantially cylindrical or conical vessel fitted at the top with pressurised sealing directly to a pressurised biomass pretreatment device through which pretreated biomass can be conveyed at the top of the vessel while maintaining pressures between 5 and 25 atmospheres, a plurality of water or aqueous nozzles or water or aqueous jets situated along the sides of the vessel at a distance from the bottom corresponding to between 0 and 2 times the diameter of the vessel, with two or more nozzles or jets projected into the center of the vessel at an angle downward of between 20 and 60 degrees, such that the water or aqueous nozzles or water or aqueous jets provide a vortex turbulence during operation, and one or more valves at the bottom of the vessel, wherein said vessel is capable of being filled with water or aqueous solution between ½ and ⅘ of the internal volume during operation as controlled by operation or adjustment of said one or more valves responsive to level of water or aqueous solution in the vessel, wherein the level of water or aqueous solution is higher than said plurality of water or aqueous nozzles or water or aqueous jets during operation.