Our Process

USABE has selected technologies and suppliers with a history of success in the field. Many biomass to liquid fuels demonstration plants have been built and operated; successfully producing fuels. However, full scale development has been difficult to finance and there weren’t enough governmental incentives to make them profitable. The plant cost is substantial.

Today, the “climate” has changed. State and Federal Governments have mandated greenhouse gas reductions. New programs including California LCFS, US federal RIN credits, US federal 45Q tax credits, and US federal Blender’s Credits provide the financial incentives necessary to make building an advanced biorefinery feasible, and the demand for renewable fuels, including cellulosic fuels, and their accompanying credits is tremendous. Once USABE’s first full scale plant is built, the extensive engineering costs and construction specifications and plans, except for those that are site specific, are reduced on subsequent plants, reducing the overall investment and development time significantly.

Creating Renewable Fuels

Carbon-based biomass to fuels designs, begins with a process block (flow) diagram. The solid feedstock (woody biomass) are first gasified in oxygen and steam, with subsequent gas conditioning that includes cleaning of the raw synthesis gas (syngas) and in some cases adjusting the composition of the syngas in preparation for downstream synthesis of Fischer-Tropsch liquids (FTL). Prior to synthesis, CO2 and sulfur compounds are removed in the acid gas removal step. In the USA BioEnergy process, the CO2 is captured and transported for geologic storage (CCS). In the synthesis area, most of the syngas that is not converted in the synthesis reactor after a single pass is recycled to the reactor for additional conversion to optimize production. Following synthesis, the crude product (syncrude) is refined into finished (renewable) diesel or sustainable aviation fuel (SAF) and gasoline blendstock (Naphtha).