AdvocacyBiofuelsABFA MembersFor MediaBetter Fuels Blog
Sundrop Fuels




Corporate headquarters
Longmont, Colorado

Inaugural facility (in construction)
Alexandria, Louisiana

Member Profile Video:

Conversion Technology:

Sundrop Fuels has developed a combination of propriety technologies and end-to-end process for converting renewable biomass into high-quality synthesis gas and subsequent transformation into tank-ready transportation fuels.  The Sundrop Fuels overall conversion process eliminates the numerous challenges and barriers that historically have hindered attempts to economically produce transportation fuels from biomass using traditional thermal-chemical methods.

Sundrop Fuels’ unique biomass gasification-based production method differs from conventional thermal chemical conversion systems by using indirect radiation heat transfer to achieve the extreme temperatures needed to create exceptionally clean, high-quality renewable synthesis gas. 

Using natural gas as its heat source, temperatures inside the Sundrop Fuels radiation-driven gasifier reach more than 1,300 degrees Celsius (2,372 degrees Fahrenheit).  By steadily maintaining these ultrahigh temperatures to drive the endothermic gasification reaction, the Sundrop Fuels process operates with extraordinary high-efficiency, producing more yield of renewable liquid fuel per ton of biomass feedstock than any other production method.

On an energy-equivalent basis, our process creates the highest fuel energy yield per ton of biomass of all biofuels processes, and almost twice as much as conventional gasification processes or the biochemical-based processes typically used to make cellulosic ethanol.

As importantly, the Sundrop Fuels biogasoline production path significantly reduces greenhouse gas emissions as compared to the production of conventional petroleum fuels. Every gallon of Sundrop Fuels drop-in cellulosic advanced biofuel will generate RIN credits under the U.S. Renewable Fuel Standard (RFS).


Sundrop Fuels technology provides for complete flexibility to produce any type of renewable, liquid advanced biofuel, from “green gasoline” to diesel and aviation fuels. These drop-in biofuels are fully compatible with today’s internal combustion engines, pipelines and other distribution infrastructure.  In addition, these biofuels create immediate benefits for both consumers and the environment: A gallon of Sundrop Fuels renewable gasoline contains more than 30 percent more energy value than a gallon of ethanol, while significantly reducing the amount of greenhouse gas emissions compared to petroleum fuels.


When completed, a single commercial-scale Sundrop Fuels biorefinery will efficiently produce more than 250 million gallons of transportation fuel annually.  We will replicate biorefinery units in targeted areas, creating a capacity for producing more than a billion gallons annually by 2022 – a significant portion of the nation’s RFS goal.

Sundrop Fuels plans to begin construction in early 2014 of its inaugural combined commercial/demonstration facility, which will produce more than five million gallons of biogasoline annually. Our next commercial biorefinery fuels unit is planned for completion by 2019 and will produce more than 250 million gallons of renewable fuel per year.