Alternative Binders and Extenders - Coal

WRI has been working with the School of Energy Resources at the University of Wyoming to turn massively abundant subbituminous Powder River Basin (PRB) coal into asphalt binder material for paving and roofing applications. PRB coal has about 1/3 the CO2 footprint to take from the ground and transport to a refinery for conversion into asphalt compared to a conventional crude oil. PRB is upgraded using renewable carbon solvents to produce a black viscoelastic binder. This process produces little gas or other byproducts and incorporates biogenic carbon through a chemical reaction. Using renewable solvents from bio-oils allows nature to sequester CO2 form the atmosphere, and once this is reacted with coal this CO2 is turned into a long-term material for infrastructure. Calculations for the hybrid coal/bio-based asphalt show that 1 ton of the product can store about 1.43 tons of CO2—due to its biogenic carbon content. If all the roads in North America could be paved with this product it would store about 7 million cars CO2e/year.

For more information, contact:

Jeramie Adams / Bio
Vice President
(307) 721-2324

Western Research Institute
3474 N. 3rd Street
Laramie, WY 82072

(307) 721-2011
(888) 463-6974 or (888) Info-WRI

You can contact WRI directly by phone (8 a.m. – 5 p.m. MST, Monday-Friday) at the numbers above.
Also, you are welcome to contact the appropriate WRI representative directly.


Copyright © 2024 Western Research Institute. All Rights Reserved. | Terms of Use