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
Methods and apparatus for voltage selection for a MOSFET switch device
Pixel structure of organic light emitting device
System and method for ranking content and applications through human assistance
Moulded tie strips
Buckle (tube)
Electronic device, display, image processing apparatus and electronic calculating apparatus
Method and apparatus for detecting an intermittent path to a storage system
  Randomly Featured Patents
Fluid brake device and variable valve timing apparatus
Method of allocating frequency bands to different cells, and TDMA cellular radio system
Device and process for making coffee and espresso beverages in microwave oven
Image forming unit and apparatus that performs stand-by charging of toner
Method of managing beams formed by phased array antennas and apparatus therefor
Medicament container/dispenser assembly
Solid state diode amplifier
Heat pump containing a piston compressor and driven by a piston engine
Driving apparatus for oscillation of a mold within a continuous casting machine
Rowing machine