Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Richard W. Hemingway
    Date: 1998
    Source: Proceedings, 2nd biennial residual wood conference; 1997 November 4-5; Richmond, BC. Richmond, BC: MCTI Communications, Inc.: 80-85.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (368 KB)

    Description

    Current forestry practice in North America is to transport pulpwood and logs from the harvest site to the mill with the bark on the wood. Approximately 18 percent of the weight of logs from conifers such as southern pine is bark. The majority of this bark is burned as hog fuel, but its fuel value is low. When compared with natural gas at an average of $2.50/MBTU or electricity at 3.5 cents/KWH, burning wet bark has a gross fuel value of about 1.2 cents/lb on a dry weight basis. Considering the cost of transport, as well as the capital and maintenance costs of boilers, processing bark for fuel is a costly business and seems to be practiced only to avoid a large solid waste management problem. One must not lose sight of the fact that one must handle nearly two lbs of wet bark to recover that 1.2 cents. In addition, concerns about air quality, especially increasingly stringent limits on particulate emissions, has stressed the ability of hog fuel boilers to meet regulatory requirements. The author explores options for producing higher value products from bark.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Hemingway, Richard W. 1998. Opportunities to use bark polyphenols in specialty chemical markets. Proceedings, 2nd biennial residual wood conference; 1997 November 4-5; Richmond, BC. Richmond, BC: MCTI Communications, Inc.: 80-85.

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/773