US Patent Issued to VALMET on Nov. 3 for "Reactor discharge" (Swedish Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,432, issued on Nov. 3, was assigned to VALMET AB (Sundsvall, Sweden).

"Reactor discharge" was invented by Olof Melander (Sundsvall, Sweden) and Peter Bjorklund (Umea, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for processing lignocellulosic materials includes: a pressurization vessel configured to perform hydrothermal treatment of the lignocellulosic materials using saturated or superheated steam; a pressure sealing screw configured to continuously discharge hydrothermally treated lignocellulosic material from the pressurization vessel to a discharge chamber; a control valve configured to add steam to the discharge chamber for pre...