Dual gate outfeed for hydrolyzer

A hydrolyzer outfeed system, comprising:

• a hydrolyzer having a hydrolyzer outlet, the hydrolyzer having a hydrolyzer volume;
• an intermediate pressure chamber having a pressure chamber inlet and a pressure chamber outlet, the intermediate pressure chamber having a pressure chamber volume, the hydrolyzer volume being at least 20 times the pressure chamber volume;
• an expansion chamber, the expansion chamber having an expansion chamber volume at least 400 times the pressure chamber volume;
• a pressure chamber inlet valve selectively communicating the hydrolyzer outlet with the pressure chamber inlet, the inlet valve having an inlet valve cross-sectional area in a fully open position;
• and
• a pressure chamber outlet valve selectively communicating the pressure chamber outlet with the expansion chamber, wherein the pressure chamber outlet valve has an outlet valve cross-sectional area in a fully open position, the outlet valve cross-sectional area being smaller less than 50% the inlet valve cross-sectional area;
• and
• a controller operatively connected to the pressure chamber inlet valve and the pressure chamber outlet valve, the controller being configured to:
• (a) open the pressure chamber inlet valve while the pressure chamber outlet valve is closed and thereby charge the intermediate pressure chamber with hydrolyzed material under pressure;
• (b) close the pressure chamber inlet valve and trap the hydrolyzed material under pressure in the intermediate pressure chamber;
• (c) open the pressure chamber outlet valve and allow a rapid depressurization of the hydrolyzed material through the pressure chamber outlet valve into the expansion chamber;
• and
• (d) repeat steps (a), (b) and (c) at a regular time interval in a range of from 2 to 20 seconds.