A5038691652- Biofuel production and bioconversion
- Microbial Metabolic Engineering and Bioproduction
- Catalysis for Biomass Conversion
- Lignin and Wood Chemistry
- Thermochemical Biomass Conversion Processes
- Biodiesel Production and Applications
- Advanced Cellulose Research Studies
- Catalysis and Hydrodesulfurization Studies
- Enzyme Production and Characterization
- biodegradable polymer synthesis and properties
- Enzyme Catalysis and Immobilization
- Marine Bivalve and Aquaculture Studies
- Anaerobic Digestion and Biogas Production
- Bioenergy crop production and management
- Marine and fisheries research
- Microbial metabolism and enzyme function
- Freezing and Crystallization Processes
- Fermentation and Sensory Analysis
- Carbohydrate Chemistry and Synthesis
- Phosphorus and nutrient management
- Wastewater Treatment and Nitrogen Removal
- Industrial Technology and Control Systems
- Food Drying and Modeling
- Chemical Synthesis and Reactions
- Advanced Control Systems Optimization
University of Maine
2010-2023
Four Directions Development Corporation
2021
Research Institute of Innovative Technology for the Earth
2018
Hudson Institute
2018
Baylor University
2001-2008
Dartmouth College
1996-1998
McGill University
1993
In this paper we report a novel four-step process for the production of jet and diesel fuel range alkanes from hemicellulose extracts derived northeastern hardwood trees. The extract is representative byproduct that could be produced by wood-processing industries such as biomass boilers or pulp mills in U.S. tested study contained mainly xylose oligomers (21.2 g/l after acid hydrolysis) well 0.31 glucose, 0.91 arabinose, 0.2 lactic acid, 2.39 acetic formic other minor products. first step an...
A variety of potentially inhibitory degradation products are produced during pretreatment lignocellulosic biomass. Qualitative and quantitative interrogation hydrolysates is paramount to identifying potential correlations between chemistries microbial inhibition in downstream bioconversion processes. In the present study, corn stover, poplar, pine feedstocks were pretreated under eight different chemical conditions, which representative leading Pretreatment processes included: 0.7%...
Mixed southern hardwood chips were extracted with an alkaline wood pulping solution called kraft green liquor. This aqueous containing mainly sodium carbonate and sulfide was applied at different alkali charges (expressed as Na2O) of 0, 2, 4, 6% on dry weight. The extractions performed 160 °C for effective times ranging from about 1−2 h to determine the effect extraction severity pulp yield composition hemicellulose time charge controls concentration acetic acid monosaccharide sugars...
Aquaculture has been responsible for an impressive growth in the global supply of seafood. As 2016, more than half all seafood production comes from aquaculture. To meet future demands, there is need and opportunity to expand marine aquaculture ways that are both socially ecologically sustainable. This requires integrating biophysical, social, engineering sciences. Such interdisciplinary research difficult due complexity multi-scale aspects inherent challenges researchers face working across...
A variety of degradation products are produced upon pretreatment lignocellulosic biomass with dilute acid. To date, the complexity these samples has significantly limited scope efforts to perform summative analyses products. Qualitative and quantitative interrogation hydrolysates is also paramount identifying potential correlations between chemistry microbial inhibition in downstream bioconversion processes. recently developed reversed-phase high performance liquid chromatography technique...
Abstract Extraction characteristics are shown for trioctylphosphine oxide (TOPO) dissolved in alkane recovery of acetic acid from dilute water solution and hardwood-derived hemicellulose extracts. The with TOPO is significantly influenced by the pH aqueous phase lightly affected temperature. In a one-stage extraction, 76.0% could be extracted below 3. yield fractional extractions increase increasing concentration phase. It was found that carried out at 70°C 1, solvent extraction effective...
Liquid hot water pretreatment has been proposed as a possible means of improving rates enzymatic hydrolysis biomass while maintaining low levels inhibitory compounds. Supplementation liquid with dissolved carbon dioxide, yielding carbonic acid, shown to improve some substrates compared the use alone. Previous studies on application acid have noted higher pH hydrolyzates treated samples prepared This study applied recently developed analytical methods quantify concentration organic acids in...
Thermal Deoxygenation (TDO) is a reaction converting calcium-neutralized, biomass-derived acids to crude hydrocarbons at 450 °C in an inert atmosphere ambient pressure. In this work, TDO applied hydrolyzate produced by the Biofine process determine effects of impurities on oil yield and composition. The oils were characterized for fuel material properties according ASTM methods. found have low total acid number (<1.4) consistent boiling point distribution high temperature simulated...