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
Packet-based timing measurement
Apparatus, method, system, and computer program product for creating operation definition file, and image forming apparatus
Method for manufacturing semiconductor device and method for growing graphene
Activators of executioner procaspases 3, 6 and 7
Bone imagery segmentation method and apparatus
Document processing system and method therefor
Form-less electronic device assemblies and methods of operation
  Randomly Featured Patents
Method of producing a protective device for use with containers having handhold openings
Automobile tire
Manually and electrically commanded automatic hooklock
Wind fairing
Connector for an electrical cable
Trench resistor structures for compact semiconductor memory and logic devices
Power saving apparatus and method of a monitor
Liner for a mixing container and an assembly and method for mixing fluid components
Articles of protective clothing adapted for deflecting chemical permeation and methods therefor
Magnetostrictive actuator with load compensating operational modification