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Title:
METHOD FOR WASHING BIOMASS, METHOD FOR PRODUCING BIOMASS CHARCOAL AND METHOD FOR OPERATING VERTICAL FURNACE
Document Type and Number:
Japanese Patent JP2010270320
Kind Code:
A
Abstract:

To provide a method for washing a biomass, a method for producing a biomass charcoal and a method for operating a vertical furnace to produce the biomass charcoal having a low alkali metal content even by using the biomass containing an alkali metal such as potassium and sodium.

The method for washing the biomass includes: a first step of subjecting the biomass to at least one treatment for drying, softening or breaking cell membrane; and a second step of washing the biomass treated in the first step with water. The treatment for softening or breaking cell membrane is conducted by pressurizing the biomass under a superatmospheric pressure. The method for producing the biomass charcoal includes dry-distilling the washed biomass. The method for operating the vertical furnace includes injecting the produced biomass charcoal, as a biomass charcoal to be injected into the vertical furnace, through a tuyere of the vertical furnace.


Inventors:
TSURUTA HIDEKAZU
ASANUMA MINORU
FUJIBAYASHI TERUO
TOMURA KEIJI
IWASAKI TOSHIHIKO
TAKASU NOBUO
Application Number:
JP2010098654A
Publication Date:
December 02, 2010
Filing Date:
April 22, 2010
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
C10B57/08; B09B3/00; C10B53/02; C21B5/00
Domestic Patent References:
JP2005008662A2005-01-13
JP2008519687A2008-06-12
JP2008266228A2008-11-06
JP2004351308A2004-12-16
JP2006225483A2006-08-31
JP2005008662A2005-01-13
JP2008519687A2008-06-12
Attorney, Agent or Firm:
Kenichiro Ochiai