Co-Generation of Low-Energy, CO2-Free Hydrogen and Ordinary Portland Cement from Ca-Rich Basalts

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Exploratory Topics
Berkeley, California
Project Term:
04/22/2020 - 10/21/2021

Critical Need:

This topic seeks to support entrepreneurial energy discoveries, by identifying and supporting disruptive concepts in energy-related technologies within small businesses and collaborations with universities and national labs. These projects have the potential for large-scale impact, and if successful could create new paradigms in energy technology with the potential to achieve significant reductions in U.S. energy consumption, energy-related imports, or energy-related emissions. These specific projects address technology areas across ARPA-E’s mission spaces, with particular focus on: Advanced bioreactors; Approaches and tools to create enhanced geothermal systems; Non-evaporative dehydration and drying technologies; Approaches to significantly enhance the rate and/or potential scale of carbon mineralization; Separation of CO2 from ambient air (direct air capture); High-rate separation of dissolved inorganic carbon from the ocean to produce a CO2 stream; Advanced trees and other engineered biological systems for carbon sequestration; Innovative deep ocean collector designs for mining polymetallic nodules; Environmental sensors capable of operation in deep ocean environments for mining polymetallic nodules; and Non-carbothermic smelting technologies. Awards under this topic are working to support research and establish potential new areas for technology development, while providing ARPA-E with information that could lead to new focused funding programs. The focus of these projects is to support exploratory research to establish viability, proof-of-concept demonstration for new energy technology, and/or modeling and simulation efforts to guide development for new energy technologies.

Project Innovation + Advantages:

Brimstone Energy is advancing three next-generation reactor technologies related to fertilizer and cement production. These processes could potentially produce 0.5 quads/year of clean H2 and reduce U.S. energy consumption by 0.55 quads/year, carbon dioxide (CO2) emissions by 200 megatons/year, and industrial expenditures by $4.8 billion/year across the cement, hydrogen, and fertilizer industries.


ARPA-E Program Director:
Dr. Joseph King
Project Contact:
Dr. Cody Finke
Press and General Inquiries Email:
Project Contact Email:

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