- Biofuel production and bioconversion
- Thermochemical Biomass Conversion Processes
- Forest Biomass Utilization and Management
- Enzyme Production and Characterization
- Bioenergy crop production and management
- Microbial Metabolic Engineering and Bioproduction
- Microplastics and Plastic Pollution
- Catalysis and Oxidation Reactions
- biodegradable polymer synthesis and properties
- Microbial bioremediation and biosurfactants
- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Zeolite Catalysis and Synthesis
- Nuclear and radioactivity studies
- Enzyme-mediated dye degradation
- Biodiesel Production and Applications
- Lignin and Wood Chemistry
- Mineral Processing and Grinding
- Catalytic Processes in Materials Science
- Composting and Vermicomposting Techniques
- Silicon Effects in Agriculture
- Phase Equilibria and Thermodynamics
- Food composition and properties
- Advanced Cellulose Research Studies
- Algal biology and biofuel production
Idaho National Laboratory
2015-2024
Michigan State University
1992-2013
South Dakota State University
2013
Shell (Germany)
2013
Institut für Nachhaltige Landbewirtschaftung (Germany)
2006
Marathon (United States)
2002-2005
Ashland (United States)
2002-2005
Lockheed Martin (United States)
1999
Poultry CRC
1998
Securing biofuels project financing is challenging, in part because of risks feedstock supply. Commoditization the and decoupling its supply from biorefinery will promote greater economies scale, reduce risk need for overdesign pretreatment technologies. We present benefits detractions applying low-severity chemical treatments or 'chemical preconversion treatments' to enable this approach through modification densification early chain. General structural modifications biomass that support...
Operational inefficiencies due to wide variability in physical and compositional attributes characteristic of existing corn stover supply systems threaten the development a sustainable bioeconomy. We utilized discrete event simulation conduct stochastic feedstock property-dependent throughput analysis conventional logistics-preprocessing-conversion system. Pilot scale preprocessing equipment data experiential information were used inform failure frequency down time. A new metric was...
During long-term operation of a biofilter, the mandatory absence net cell growth forces cells into maintenance metabolism, which is relatively low rate compared to substrate consumption during active acclimation phase. A model based on this shift in metabolism can explain postacclimation decrease activity sometimes reported for biofilters. The cessation be caused by nutrient depletion bed. Postacclimation addition increases primarily allowing return high growth, and only secondarily helps...
Biofuels made from biomass and waste residues will largely contribute to United States' 2050 decarbonization goal in the aviation sector. While cellulosic biofuels have potential fuel performance equivalent petroleum-based jet fuel, biofuel industry needs overcome supply chain barrier caused by temporal spatial variability of yield quality. This study highlights importance incorporating during planning via optimization modeling that incorporates 10 years drought index data, a primary factor...
Biomass feedstock costs remain one of the largest impediments to biofuel production economics. Municipal solid waste (MSW) represents an attractive with year-round availability, established collection infrastructure paid for by generators, low cost, and potential be blended higher cost feedstocks reduce overall costs. Paper waste, yard construction demolition (C&D) were examined their applicability in pyrolysis conversion pathway. consisted nonrecyclable paper such as mixed grade paper, food...
Pretreatment and densification of biomass can increase the viability bioenergy production by providing a feedstock that is readily hydrolyzed able to be transported over greater distances. Ammonia fiber expansion (AFEX™) one such method targeted for use at distributed depots create value-added densified use. However, pretreatment process results in high-moisture material must dried, further size reduced, pelletized, all which are energy-intensive processes. This work quantifies energy...