Goal
Convert plant-derived sugars directly into gasoline-compatible hydrocarbons (biogasoline) to replace fossil fuels.
Problem
Dependence on fossil fuels and the need for biofuels that can be blended into existing gasoline infrastructure without engine modifications.
Concept Summary
Virent's BioForming platform uses a patented aqueous-phase reforming (APR) catalytic process to convert aqueous solutions of biomass sugars (e.g., glucose, glycerol, corn stover) into hydrogen and then into hydrocarbon fuels (gasoline, diesel, jet fuel). The process operates at relatively low temperature and pressure, relies on metal-based catalysts (Ni-Sn, Pt, Cu, etc.) supported on carbon or silica, and produces fuels with higher net energy yields than ethanol.
Principles
- Aqueous-phase reforming (APR)
- Catalytic hydrogen production
- Hydrocarbon synthesis from hydrogen and oxygenated feedstocks
- Low-temperature catalytic conversion
Scientific Domains
Materials
- Nickel
- Tin
- Platinum
- Copper
- Silica
- Activated carbon
Mechanisms of Action
- Catalyst-mediated dehydrogenation of sugars to generate H_2
- Hydrogen-driven hydrogenation/condensation of oxygenated intermediates to alkanes
- Aqueous-phase reactions that avoid high-temperature steam reforming
Energy Sources
Applications
- Gasoline
- Diesel fuel
- Jet fuel
Claimed Performance
2x net energy yield per acre compared with ethanol; 20-30% lower BTU cost than ethanol; gasoline-like fuel properties matching petroleum gasoline.
Experimental Evidence
Multiple peer-reviewed papers (Science 2005, Nature 2002, Angewandte Chemie 2004) demonstrate APR catalysis; patents describe commercial-scale processes; Virent reports pilot-scale production and cost-competitiveness.
Replication Status
Technology has been demonstrated at pilot scale and is being scaled up for larger-volume commercial production.
Limitations
- Catalyst deactivation over time
- Feedstock logistics for large-scale biomass supply
- Economic competitiveness depends on scale and carbon pricing
