Vicki S. Thompson
Idaho National Laboratory
FermentationNuclear chemistryBiotechnologyIonic liquidBioenergyChemistryMaterials scienceMineralogyRaw materialCorn stoverSugarLignocellulosic biomassProduction (economics)BiomassBiorefineryLigninGluconobacter oxydansFood sciencePyrolysisEnvironmental scienceComputer scienceChromatographyPulp and paper industryBiofuelWaste managementMunicipal solid wasteLeaching (metallurgy)HydrolysisBioleaching
Publications 48
#1Quan Sun (Clemson University)H-Index: 6
#2Yidong Xia (INL: Idaho National Laboratory)H-Index: 13
Last. Qiushi Chen (Clemson University)H-Index: 15
view all 7 authors...
Abstract The properties of lignocellulosic biomass, such as bulk physical, thermal, and mechanical properties, as well as the mobility of enzymes or catalysts, are largely affected by porosity, pore structures, and pore size distribution. While X-ray computed tomography (CT) has been introduced to effectively produce 3D volumetric images of material microstructure, a quantitative porosity analysis from the 3D images has never been done. This work introduces a first-of-its-kind X-ray CT-based qua...
1 CitationsSource
#1Utkarsh S. Chaudhari (MTU: Michigan Technological University)H-Index: 1
#2Yingqian Lin (INL: Idaho National Laboratory)H-Index: 3
Last. David R. Shonnard (MTU: Michigan Technological University)H-Index: 33
view all 9 authors...
#1Yuan Guo (SYSU: Sun Yat-sen University)H-Index: 20
#2Qiushi Chen (Clemson University)H-Index: 15
Last. Vicki S. Thompson (INL: Idaho National Laboratory)H-Index: 15
view all 5 authors...
Abstract This work presents an experiment-informed, semi-empirical, elasto-plastic bond model for the discrete element modeling of woody biomass particles. The model renders nonlinear plastic deformation of materials when subjected to compression/tension, bending, and twisting, essential for accurately simulating the behavior of biomass in comminution. The model is implemented in an open-source DEM package LIGGGHTS and is assessed in a number of verification tests. The model is applied to simula...
#1Vicki S. ThompsonH-Index: 15
#2Timothy A. Volk (ESF: State University of New York College of Environmental Science and Forestry)H-Index: 35
Last. Lynn M. WendtH-Index: 9
view all 3 authors...
#1Vicki S. Thompson (INL: Idaho National Laboratory)H-Index: 15
#2Allison E. Ray (INL: Idaho National Laboratory)H-Index: 11
Last. David N. Thompson (INL: Idaho National Laboratory)H-Index: 19
view all 8 authors...
1 CitationsSource
#1Bradley D. Wahlen (INL: Idaho National Laboratory)H-Index: 10
#2Lynn M. Wendt (INL: Idaho National Laboratory)H-Index: 9
Last. Henri Gerken (ASU: Arizona State University)H-Index: 16
view all 7 authors...
Seasonal variation in microalgae productivity is a significant barrier to economical production of algae biofuels and chemicals. Summer production can be 3-5 times higher than in the winter resulting in uneven feedstock supplies at algae biorefineries. A portion of the summer production must be preserved for conversion in the winter in order to maintain a biorefinery running at capacity. Ensiling, a preservation process that utilizes lactic acid fermentation to limit microbial degradation, has b...
1 CitationsSource
#1Sougata Roy (ORNL: Oak Ridge National Laboratory)H-Index: 9
#2Kyungjun Lee (ORNL: Oak Ridge National Laboratory)H-Index: 7
Last. Jun Qu (ORNL: Oak Ridge National Laboratory)H-Index: 35
view all 6 authors...
Biomass, as harvested, is composed of inorganic compounds both intrinsically and extrinsically and can be quite abrasive. The present study investigates the wear modes and mechanisms of two types of blades of hammer mills used in biomass size reduction (impacting particle size and distribution) and densification (impacting size, shape, and density). The dominant wear modes for the stage 1 steel blades are determined to be erosive and polishing wear. For the stage 2 blades with a carbide weld ove...
4 CitationsSource
#1Jordan Klinger (INL: Idaho National Laboratory)H-Index: 9
#2Daniel Carpenter (NREL: National Renewable Energy Laboratory)H-Index: 16
Last. Igor V. Kutnyakov (PNNL: Pacific Northwest National Laboratory)H-Index: 14
view all 11 authors...
Here we report on the effects of loblolly pine residue variability on material throughput, pilot plant uptime, operator intervention, product yield, and product quality for grinding, fast pyrolysis, and hydrotreating operations. Preprocessing throughput using a hammer mill varied between 31-48% of nameplate capacity (5 tons/hr). Grinder overloads in the size reduction step were more prevalent for lower ash and higher moisture materials. Fast pyrolysis throughput varied between 57-72% of nameplat...
4 CitationsSource
#1David A. Sievers (NREL: National Renewable Energy Laboratory)H-Index: 7
#2Erik M. Kuhn (NREL: National Renewable Energy Laboratory)H-Index: 10
Last. Edward J. Wolfrum (NREL: National Renewable Energy Laboratory)H-Index: 24
view all 7 authors...
Early lignocellulosic biorefineries have been plagued with numerous issues that involve feedstock handling problems and variations in conversion efficacy that stem from feedstock variability and complexity in dimensional, physical, chemical, and mechanical attributes. Feedstock ash and moisture content vary considerably in corn stover harvested from farms for bioconversion, and their effects on preprocessing (grinding/milling) and subsequent chemical and enzymatic conversion to fermentable sugar...
8 CitationsSource
#1Sidi Deng (Purdue University)H-Index: 2
#2Jesus Perez-Cardona (Purdue University)H-Index: 1
Last. John W. Sutherland (Purdue University)H-Index: 53
view all 8 authors...