Crumbler

Crumbler Waste to Energy Presentation

Application of Crumbler® Technology to Recovered Plastics and MSW for Chemical Recycling and Waste to Energy

Abstract  Crumbler® rotary-shear technology from Forest Concepts is the solution to produce high quality feedstocks. This short presentation explains some of our emerging work in applying this patent-protected technology to recovered plastics and MSW for chemical recycling and waste to energy.  About the Publication  Dooley, J. H. (2020).  Auburn, WA, Forest Concepts, LLC. Read the …

Application of Crumbler® Technology to Recovered Plastics and MSW for Chemical Recycling and Waste to Energy Read More »

Two Crumbler Modules in a Tower Arrangement

Techno-Economic Analysis of Forest Concepts, LLC Crumbler® Operated at Proton Power to Process Crumbles® from Hardwood Chips

Abstract  Developing cost-effective methods for processing biomass into an economic biofuel product is critical to the success for the bioenergy industry in the United States. Size reduction and drying of the material, where used, are two of the most costly and energy-intensive operations that are undertaken during preprocessing. Reducing the energy required during these two …

Techno-Economic Analysis of Forest Concepts, LLC Crumbler® Operated at Proton Power to Process Crumbles® from Hardwood Chips Read More »

Wood chips in Crumbler

Woody Biomass Size Reduction with Selective Material Orientation

Abstract  Roundwood logs from forests and energy plantations must be chipped, ground, or otherwise comminuted into small particles prior to conversion to solid or liquid biofuels. Results & discussion: Rotary veneer followed by cross-grain shearing is demonstrated to be a novel and low energy consuming method for primary breakdown of logs into a raw material …

Woody Biomass Size Reduction with Selective Material Orientation Read More »

Crumbler Cutterset

Beneficiation of Chipped and Shredded Woody Biomass

Abstract Forest Concepts, with funding from USDA NIFA SBIR program, developed methods and equipment to reprocess low-value dirty forest chips, tree service chips, and hog fuel into high value clean wood fiber and other valuable fractions. Traditional clean sources of mill residuals (sawdust, shavings, and chips) are declining rapidly due to improved sawmilling efficiencies and …

Beneficiation of Chipped and Shredded Woody Biomass Read More »

Crumbles with Hand

Shear Processing of Wood Chips into Feedstock Particles

Abstract We have an objective to convert cellulosic biomass raw materials into small particles that are optimized for biochemical and/or thermochemical conversion to liquid transportation fuels. As a side effort, we are interested in producing feedstocks for composite bioproducts, solid biofuels, and other uses. Wood chips that have a typical length of 50mm are a …

Shear Processing of Wood Chips into Feedstock Particles Read More »