BINGO

This process under development by Dynamotive, involves biooil hydro-reforming and overcomes the defects of biooil that retard its acceptance. It involves pyrolysis of biomass to produce a first liquid, biooil, hydroreforming of biooil to a first improved liquid that can either be directly utilized in blends with hydrocarbon fuels as an industrial fuel or be further upgraded in a second step to transportation grade liquid hydrocarbon fuels. The major by-product from biomass pyrolysis is so-called Biochar/Agrichar which has emerging value for soil productivity enhancement and carbon sequestration.

In comparison with the Bioliq process where only the total yield of char + biooil is relevant, Dynamotives’ pyrolysis stage is designed to maximize liquid yields which means the pyrolysis process is somewhat more complex since conditions must be established for rapid heating of biomass particles. However since the water will separate during the reforming stage of BINGO, the moisture content of the biooil is not as crucial, thus minimizing potential biomass drying costs.

Comparison of BTL Process and BINGO Process

For comparison with the Bioliq BTL process, the BINGO yields will in fact be somewhat greater for straw containing 15% moisture. Thus the overall yield of hydrocarbon liquids from wheat straw is estimated to be 24% UBB. As far as we can determine this would be the highest yield of hydrocarbon liquids from whole biomass ever reported. It far exceeds the 14% biomass to diesel reported for the Bioliq BTL process; even when account is taken of the likelihood that yields of motor fuels -as opposed to unspecified hydrocarbons – in the final step will be somewhat lower on account of the higher severity hydrotreatment that would be required.

Note that the Dynamotive’s pyrolysis process typically would give biooil yields of about 70-75% from woody biomass and 60-65% from bone dry wheat straw.