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"Our process is a renewable, thermo chemical sledgehammer because of the ultra-high temperatures we’re working at. We’re trailblazing a new path to clean energy through biomass conversion."

University of Colorado professor Alan Weimer, Sundrop Fuels chief technology officer and director of the Colorado Center for Biorefining and Biofuels.


1. Sundrop Fuels uses clean-burning natural gas, electricity, concentrated solar power or a hybrid energy source to generate ultra-high temperatures inside the proprietary radiant particle reactor – the Sundrop Fuels RP Reactor™.

2. Finely ground cellulosic biomass material is delivered by entrained flow into a feeder unit above the RP Reactor™.

3. Hydrogen-rich natural gas is added to the biomass feedstock to create a two-to-one hydrogen-to-carbon ratio necessary for “drop-in” transportation fuels that can be used in today’s engines.

4. The feedstock is dropped into the RP Reactor™ processing tank, where temperatures of more than 1,300°C instantly gasify the material.

5. Synthesis gas (syngas) is collected and delivered to the adjacent processing unit to create biobased “green gasoline”, diesel or aviation fuels.


Sundrop Fuels gasification technology almost instantly turns any plant material into synthesis gas, a mixture of carbon monoxide and hydrogen that is then converted into drop-in biobased “green gasoline”, diesel or aviation fuel using well-established commercial processes.

Our process is similar to conventional biomass gasification except for one major difference: We use radiation heat transfer to rapidly drive the extremely high temperatures needed to create the syngas that is then converted into advanced biofuels. At the center of our patented approach is the Sundrop Fuels RP Reactor™ , a radiation-driven biomass gasifier that generates temperatures of more than 1,300 degrees Celsius (2,372 degrees Fahrenheit).

We can use clean-burning natural gas, electricity or even concentrated solar to power the RP Reactor™, which by maintaining ultra-high temperatures to drive the endothermic gasification reaction ensures the most efficient use of biomass feedstock. In fact, the Sundrop Fuels process produces more yield of biofuel per ton of biomass feedstock than any other production method in the world.

As importantly, the Sundrop Fuels product lifecycle significantly reduces greenhouse gas emissions compared to conventional petroleum fuels.


Radiant Particle Reactor
Feedstock Flexibility
Advanced Biofuels


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