Resources Contact Us Home
System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process

Image Number 9 for United States Patent #8057639.

A system has been developed for pretreating cellulosic biomass feed stock including: a first pressurized reactor receiving the feed stock, wherein the feed stock undergoes hydrolysis in the first pressurized reactor; a sealing device having a first pressurized coupling to a feedstock discharge port of the first pressurized reactor, and a second pressurized coupling to a second pressurized reactor; a drain for a liquid including dissolved hemi-cellulosic material extracted from the feed stock in at least one of the first pressurized reactor and the sealing and extraction device; the second pressurized reactor assembly receiving the pressurized feed stock from the sealing device at a pressure substantially greater than the pressure in the first pressurized reactor, wherein cells of the feed stock are infused with water in the second pressurized reactor, and an expansion device downstream of the second pressurized reactor assembly, wherein the expansion device rapidly releases the pressure of the feed stock discharged from the second pressurized reactor such that the feed stock undergoes a steam explosion reaction.

  Recently Added Patents
Headset electronics
Method for programming non-volatile memory device and apparatuses performing the method
Authenticating messages sent between a vehicle and a central facility
Method for controlling a motor
Method for transmitting a signal
LED-array package
  Randomly Featured Patents
Tap connections for circuits with leakage suppression capability
Rotary valve system for motors and the like having improved sealing means
Polymer alloy of polyarylene thioether and a process for producing the same
Imaging lens system
Wearable record tracking device and method of using
Apparatus and process for forming alternate twist plied yarn and product therefrom
Low bend loss optical fiber
Methods for making and delivering rho-antagonist tissue adhesive formulations to the injured mammalian central and peripheral nervous systems and uses thereof
Optical information recording medium comprising two magneto-optical layers which are made of GDFECO and TBFETI, respectively
Process integrated messaging