2012 Annual Report
1a.Objectives (from AD-416):
Evaluate the relationship between yield and properties of bio-oil, biochar, and noncondensable gas co-products from catalytic treatments during fast pyrolysis and of the bio-oil products to produce a stable, refinable bio-oil.
1b.Approach (from AD-416):
Carry out in-situ catalytic pyrolysis jointly at the micro- and pilot-scale reactor systems developed at ARS using heterogeneous catalysts formulated and produced at the University of Oklahoma so as to evaluate pathways to producing fungible liquid transportation fuels such as gasoline, diesel and jet grade fuels that retain carbon and minimize hydrogen consumption. The approach will involve iterative procedures to provide feedback for catalyst formulation at the collaborator’s facility so as to develop highly stable catalyst types, structures and morphology, with active sites capable of removing reactive oxygen from the oxygenated, sugar-derived and phenolic compounds formed in the initial pyrolysis process so as to produce a stable, refinable pyrolysis oil with molecules that have transportation fuel carbon structures (e.g. from 6 to 17 carbons). State of the art analytical techniques including GCxGC, NMR, LC, etc., will be used to evaluate product quality and mass and energy balances will be closed to establish product recovery efficiencies.
PI from the University of Oklahoma visited ARS in May 2012 to conduct experiments on ex situ catalytic processing of switchgrass pyrolysis vapors under a hydrogen atmosphere modifying and using ARS’ py-GC/MS. These tests aided in the acquisition of a custom designed system to perform these tests at the University of Oklahoma.