DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Engineered plant biomass feedstock particles

Abstract

A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. At least 80% of the particles pass through a 1/4 inch screen having a 6.3 mm nominal sieve opening but are retained by a No. 10 screen having a 2 mm nominal sieve opening. The feedstock particles are manufacturedmore » from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

Inventors:
 [1];  [1];  [2]
  1. Federal Way, WA
  2. Lake Forest Park, WA
Issue Date:
Research Org.:
Forest Concepts, LLC (Auburn, WA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028786
Patent Number(s):
8039106
Application Number:
12/966,198
Assignee:
Forest Concepts, LLC (Auburn, WA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL B27L - REMOVING BARK OR VESTIGES OF BRANCHES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
SC0002291
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Dooley, James H, Lanning, David N, and Broderick, Thomas F. Engineered plant biomass feedstock particles. United States: N. p., 2011. Web.
Dooley, James H, Lanning, David N, & Broderick, Thomas F. Engineered plant biomass feedstock particles. United States.
Dooley, James H, Lanning, David N, and Broderick, Thomas F. Tue . "Engineered plant biomass feedstock particles". United States. https://www.osti.gov/servlets/purl/1028786.
@article{osti_1028786,
title = {Engineered plant biomass feedstock particles},
author = {Dooley, James H and Lanning, David N and Broderick, Thomas F},
abstractNote = {A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. At least 80% of the particles pass through a 1/4 inch screen having a 6.3 mm nominal sieve opening but are retained by a No. 10 screen having a 2 mm nominal sieve opening. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {10}
}

Works referenced in this record:

Assessing Activity Access of Forage or Biomass
journal, January 2008


Modelling of flash pyrolysis of a single wood particle
journal, May 2000


Mode of Failure Model for Cutting Solid Section Biomass
conference, January 2008