skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Industrial wood/coal co-utilization in the Northeast: technology assessment and case studies. Final report

Technical Report ·
OSTI ID:5537130

This report examines the opportunities and constraints for wood/coal co-utilization in industrial boilers in the Coalition of Northeast Governors (CONEG) region. Coal is the leading solid fuel in much of the CONEG region, but its share of the industrial energy market has not increased as quickly as expected due to concerns about sulfur emissions. Congressional, EPA and state initiatives to curb sulfur dioxide emissions may create a major impetus for blending wood fuels in coal-fired plants in lieu of installing costly desulfurization equipment. This analysis suggests that mixing wood feedstocks with coal may be a cost-effective alternative to complying with increasingly stringent state emissions standards. While wood fuels are not less expensive than coal in all subareas of the CONEG region, wood offers environmental advantages in addition to reduced sulfur emissions. Per unit of heat output, it emits less nitrogen oxide, produces less bottom ash, and reduces opacity and particulate emissions when fired with coal. Additional costs of blending wood with coal include fuel handling, storage and grate retrofitting on existing boilers. For operators of wood-fired boilers, coal supplements provide some insurance against price swings in wood residues markets as well as a more responsive fuel to meet peak thermal demands. State regulators are in a position to foster wood/coal blends by enacting emissions regulations which account for the inherent environmental advantages of wood fuels.

Research Organization:
Boston Planning Group, Inc., MA (USA)
DOE Contract Number:
FG05-83OR21389
OSTI ID:
5537130
Report Number(s):
DOE/OR/21389-T3; ON: DE86013105
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English