TY - JOUR
T1 - Physical separation of straw stem components to reduce silica
AU - Hess, J. Richard
AU - Thompson, David N.
AU - Hoskinson, Reed L.
AU - Shaw, Peter G.
AU - Grant, Duane R.
N1 - Funding Information:
We thank the University of Idaho Aberdeen Research and Extension Center for assistance with the in-field fractionation. Dr. Judi Steciak (University of Idaho) played a large role in obtaining support and will be involved in future tasks on this project. This project is administered by the Idaho Department of Water Resources Energy Division. This work is supported in part by the US Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy (EE) under DOE Idaho Operations Office Contract DE-AC07-99ID13727. Additional support for this work, both in kind and financial, is provided by the Idaho Wheat Commission, Grant 4-D Farms, and Energy Products of Idaho, Inc.
PY - 2003
Y1 - 2003
N2 - In this paper, we describe ongoing efforts to solve challenges to using straw for bioenergy and bioproducts. Among these, silica in straw forms a low-melting eutectic with potassium, causing slag deposits, and chlorides cause corrosion beneath the deposits. Straw consists principally of stems, leaves, sheaths, nodes, awns, and chaff. Leaves and sheaths are higher in silica, while chaff, leaves, and nodes are the primary sources of fines. Our approach to reducing silica is to selectively harvest the straw stems using an in-field physical separation, leaving the remaining components in the field to build soil organic matter and contribute soil nutrients.
AB - In this paper, we describe ongoing efforts to solve challenges to using straw for bioenergy and bioproducts. Among these, silica in straw forms a low-melting eutectic with potassium, causing slag deposits, and chlorides cause corrosion beneath the deposits. Straw consists principally of stems, leaves, sheaths, nodes, awns, and chaff. Leaves and sheaths are higher in silica, while chaff, leaves, and nodes are the primary sources of fines. Our approach to reducing silica is to selectively harvest the straw stems using an in-field physical separation, leaving the remaining components in the field to build soil organic matter and contribute soil nutrients.
KW - Bioenergy
KW - Combustion
KW - Selective harvest
KW - Silica
KW - Wheat straw
KW - Whole crop utilization
UR - http://www.scopus.com/inward/record.url?scp=0037510022&partnerID=8YFLogxK
U2 - 10.1385/ABAB:105:1-3:43
DO - 10.1385/ABAB:105:1-3:43
M3 - Article
C2 - 12721474
AN - SCOPUS:0037510022
SN - 0273-2289
VL - 105
SP - 43
EP - 51
JO - Applied Biochemistry and Biotechnology
JF - Applied Biochemistry and Biotechnology
IS - 1-3
ER -