Woody Feedstock 2018 State of Technology Report

Supply Chain Sustainability Analysis of Renewable Hydrocarbon Fuels via Indirect Liquefaction, Fast Pyrolysis, and Hydrothermal Liquefaction: Update of the 2016 State-of-Technology Cases and Design Cases

“…INL modeled a woody blended feedstock for the 2016 SOT that is used by the IDL and fast pyrolysis pathways (Hartley et al, 2016), while NREL modeled an algal feedstock that is used for the algae HTL pathway (Markham and Davis, 2017). The biomass blending approach to produce the woody blended feedstock takes advantage of low cost woody biomass resources (i.e., forest residues), while producing a feedstock with a low ash content.…”

“…This is mostly attributable to three factors: (1) woody biomass preprocessing to the feedstock blend, which is the largest contributor to the supply chain GHG emissions for both the 2015 SOT (50%) and 2016 SOT cases (49%), has significantly reduced the amount of energy it consumes for size reduction, drying, and densification of the feedstock compared to the 2015 feedstock SOT case. Two technological improvements are responsible for bringing about this change: replacement of a portion of the field-side preprocessing of forest residues with air classification during in-plant preprocessing, which removes soil ash from the feedstock with reduced dry matter loss and overall energy consumption; and replacement of the hammer mill for size reduction with rotary shear, which reduces energy consumption and dry matter loss (Hartley et al, 2016); (2) a 59% reduction in energy consumption associated with feedstock landing preprocessing and sorting is achieved in the 2016 feedstock SOT. The use of air-classification during in-plant preprocessing eliminated the use of a chain flail on the landing to clean the residues, which caused a loss of 40% of the material.…”

High-Octane Gasoline from Lignocellulosic Biomass via Syngas and Methanol/Dimethyl Ether Intermediates: 2018 State of Technology and Future Research

“…The updated dry basis elemental composition of the feedstock is different from that in the NREL design report, which used woody material with <1 wt% ash [1]. INL has recently updated the feedstock specification and cost for the forest residues-based material [4]. The current feedstock contains 3 wt% ash (i.e., mineral matter contained in the biomass feedstock) as opposed to 0.92 wt% in the previous study.…”

“…The supply chain sustainability assessment (SCSA) of the syngas conversion pathway was conducted using ANL's 2018 version of the GREET model [10]. The SCSA incorporated the 2018 SOT feedstock (100% logging residues) and the 2022 feedstock design (100% logging residues) that INL has modeled [4] for the syngas conversion pathway. For the conversion step, fossil energy consumption is about 0.035 and 0.029 MJ/MJ for the 2018 SOT and 2022 projection cases, respectively, and GHG emission intensities are about 2.9 and 2.4 g CO2e/MJ for the 2018 SOT and 2022 projection cases, respectively.…”

Biomass market dynamics supporting the large‐scale deployment of high‐octane fuel production in the United States

“…The initial price for logging residues is set at $44.09 per dry tonne. Both mill and logging residue prices are converted to delivered prices by adding transportation and handling cost of $20.35 per dry tonne, which resemble an average between clean pine and forest residue values from the most recent Idaho National Laboratory (INL) Woody Feedstock State of Technology report (Hartley et al, 2016).…”