Production of Wood Fuel Feedstocks Projected to Rise

A recent study by FPL economists Peter Ince (retired) and Prakash Nepal finds that U.S. output of wood fuel feedstock did not decline significantly during the recent recession. What’s more, production is projected to rise in the coming decades.

The study, Effects on U.S. Timber Outlook of Recent Economic Recession, Collapse in Housing Construction, and Wood Energy Trends (FPL-GTR-219), is a veritable banquet of economic insight. For a snack-like bite of data, feast your eyes on these two graphs:

wood fuel feedstock projections by region

The above graph represents historical and projected U.S. production of wood fuel feedstock by region. Production in all U.S. regions is projected to increase with a nearly two-fold increase by 2060.

wood fuel feedstock projections by source

Likewise, this graph represents historical and projected U.S. production of wood fuel feedstock by source. Ince and Nepal report that the projected expansion in U.S. wood fuel feedstock will include conventional fuelwood harvest, increased supply of fuel residues from mills, and eventual expansion in the recovery of logging residues for energy purposes as demand increases. The use of pulpwood for energy is also projected to increase. Pulpwood is already used to produce wood pellets, including pellets for export.

Ince and Nepal define wood fuel feedstock to include residential fuelwood, wood and wood residues used in the production of biofuels such as wood fuel pellets, and wood fuels used for industrial processes, such as wood or bark burned for energy at forest product mills or wood that is co-fired with coal at power plants.

For a more in-depth look at this research, see the Winter 2013 edition of FPL’s quarterly newsletter, NewsLine.

FPL Research Supports USDA’s $80 Million Biofuels Investment

By Rebecca Wallace, Public Affairs Specialist

Washington State University and University of Washington have each been awarded a five-year, $40 million grant from the U.S. Department of Agriculture to help develop alternatives to petroleum-based fuels and chemicals. As a partner in the Washington State University (WSU)-led Northwest Advanced Renewables Alliance (NARA), the Forest Products Laboratory (FPL) will receive $1.1 million to pretreat woody biomass for conversion to aviation fuel.

“This is an opportunity to create thousands of new jobs and drive economic development in rural communities across America by building the framework for a competitively priced, American-made biofuels industry,” Vilsack said. “Public-private partnerships like these will drive our nation to develop a national biofuels economy that continues to help us grow and out-compete the rest of the world while moving our nation toward a clean-energy economy.”

NARA includes a broad consortium of scientists from universities, government laboratories and private industry. The WSU-led grant aims to address the urgent national need for a domestic biofuel alternative for U.S. commercial and military air fleets. NARA researchers envision developing a new, viable, aviation fuel industry using wood and wood waste.  The project also will focus on increasing the profitability of wood-based fuels through development of high-value, bio-based co-products to replace petrochemicals that are used in products such as plastics.

FPL research engineer JunYong Zhu will demonstrate his patent-pending technique, SPORL (Sulfite Pretreatment to Overcome Recalcitrance of Lignocellulose) in the NARA program. Zhu has successfully used SPORL on lodgepole pine woody biomass (juvenile wood with a high lignin content), but his contribution to NARA will be using SPORL on biomass of another softwood, Douglas-fir, grown by Weyerhaeuser.

SPORL was developed on the basis of sulfite pulping technology, which has been carried out at a large commercial scale for decades. By making use of existing equipment, processes, and knowledge of the pulp and paper industry, SPORL presents fewer technical barriers to building new plants or to retrofitting existing pulp mills to production of biofuels.  The process also reduces energy requirements and will address feedstock variability of bark, needles, and branches. This pretreatment process is an integral part of converting woody biomass to aviation fuel. The pretreated materials will be sent to Weyerhaeuser and Gevo for conversion to renewable chemicals and advanced biofuels, respectively.