|         The reportBreaking the Chemical and Engineering        Barriers to Lignocellulosic Biofuels: Next Generation Hydrocarbon        Biorefineriesis one of the outcomes of a workshop on the topic held last June with        more than 70 leading biofuels scientists and engineers. The workshop was        sponsored by NSF, the Department of Energy (DOE) and the American Chemical        Society; it was chaired by George W. Huber, University of        Massachusetts-Amherst.        The report identifies the basic research needs and        opportunities in catalytic chemistry and materials science that underpin        biomass conversion and fuel utilization, with a focus on new, emerging and        scientifically challenging areas that have the potential for significant        impact. The report illuminates the principal technological barriers and        the underlying scientific limitations associated with efficient processing        of biomass resources into finished fuels.                  The limiting factor to biofuels production is simply          that low-cost processing technologies to efficiently convert a large          fraction of the lignocellulosic biomass energy into liquid fuels do not          yet exist.          "Breaking the Chemical and Engineering          Barriers..."         The report focuses on six primary areas:                 -          
Selective thermal processing of lignocellulosic biomass          to produce liquid fuels (bio-oils) in distributed          biorefineries.           -          
Utilization of petroleum refining technology for          conversion of biomass-derived oxygenates within existing petroleum          refineries.           -          
Hydrocarbon production by liquid phase processing of          sugars to a heretofore "sleeping giant" intermediate,          hydroxymethylfurfural (HMF), followed by HMF conversion to "green"          diesel and jet fuel.           -          
Process intensification for diesel and gasoline          production from synthesis gas (CO and H2) by Fisher-Tropsch          synthesis (FTS), which dramatically decreases the economically viable          size compared to traditional FTS processes with petroleum derived          feedstocks.           -          
Conceptual design of biorefining processes in          conjunction with experimental studies at the beginning of research          projects to allow rapid development of commercial biofuel          technologies.           -          
Design of recyclable, highly active and selective          heterogeneous catalysts for biofuel production using advanced          nanotechnology, synthesis methods and quantum chemical          calculations.          Resources         |