AUBURN, WASHINGTON, UNITED STATES, August 11, 2025 — We have revamped our website and added a few new pages, including: Transportable Integrated Modular M Series Customizable Feed modules Comminution modules Drying modules and more… Featured with comminution module with 2 M24M series rotary shears Small footprint Can handle a wide range of materials Learn more […]
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Abstract Biomass has potential as a carbon-neutral alternative to petroleum for chemical and energy products. However, complete replacement of fossil fuel is contingent upon efficient processes to eliminate undesirable characteristics of biomass, e.g., low bulk density, variability, and storage-induced quality problems. Mechanical size reduction via comminution is a processing operation to engineer favorable biomass flowability
Abstract Lignocellulosic biomass has a complex, species-specific microstructure that governs heat and mass transport during conversion processes. A quantitative understanding of the evolution of pore size and structure is critical to optimize conversion processes for biofuel and bio-based chemical production. Further, improving our understanding of the microstructure of biochar coproduct will accelerate development of its
Abstract A Crumbler® rotary shear system was recently developed to process fuel-grade woodchips into feedstocks having more uniform particle sizes for improved flowability and higher thermochemical output yield than a traditional hammer mill. It represents a significant innovation in the state of the art of biomass comminution equipment. However, the milling unit has experienced significant
Investigation of Cutter-Woodchip Contact Pressure in a New Biomass Comminution System Read More »
Pacific Gas and Electric (PG&E) sponsored a project to explore methods to gather powerline vegetation management woody biomass and process it into feedstocks optimized for delivery to distributed-scale gasifiers. A pilot study was conducted in Lake County, California where powerline trimmings were either chipped or baled, then ground at a central biomass processing facility, and finally milled / screened to achieve particle size distributions specified by a gasifier manufacturer. The vegetation included oak, pine, walnut, and other hardwoods. All materials were successfully processed into feedstocks.
Idaho National Lab is undergoing a $15 million upgrade to the Process Development Unit (PDU) and Biomass Feedstocks National User Facility in Idaho Falls, Idaho. Researchers at the lab can assist with analytics, supply/logistics issues, and characterization to help industry players scale up their technology for the bioeconomy. Today, the lab is one of the largest feedstock
Forest Concepts’ custom processing equipment size reducing and screening of switchgrass materials.
Crumbling and Screening Switchgrass Read More »
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
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
Abstract Baled corn stover at 10% +/- moisture (wet-basis) was comminuted and sorted to obtain a particle size with a geometric mean diameter (Xgm) of 1.34 mm and particle size distribution to match the Idaho National Laboratory (INL) feedstock used to produce densified corn stover pellets for this project. Comminution (milling) was performed using four
Production of corn stover feedstocks using rotary shear mill and screen system Read More »
