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Press Release

ClearSign Technologies Corporation Announces Successful Testing of Ultra-Low NOx Hydrogen Burner

Published by Todd Bush on April 10, 2023

Company Submitting Application for Phase 2 Commercial Development

TULSA, Okla., April 5, 2023 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announces the successful development and demonstration of a ClearSign Core™ Ultra Low NOx burner fueled with 100% Hydrogen. 

"We had high confidence going into this project about the capabilities of our ClearSign Core™  technology," said Jim Deller, Ph.D., Chief Executive Officer of ClearSign.  "We very much appreciate the DOE for this grant and opportunity to advance and demonstrate the capabilities of ClearSign Core™ technology to provide burners for the developing hydrogen economy, which we believe has potential massive global ramifications, reducing the pollutant emissions necessary to maintain a healthy environment today," continued Dr. Deller.  "Additionally, this project has raised the visibility of ClearSign and garnered the attention of customers and other stakeholders in the industry who have expressed interest in adopting this technology or providing sponsorship and collaboration to accelerate its deployment." 

This project is being funded by a government grant through the Small Business Innovative Research (SBIR) program with the Department of Energy to Support Scientific Innovation in Clean Energy Development and Climate Solutions.  The project and funding are in phases.  The initial funding amount was approximately $250,000 and commenced in June.  With this completion of the Phase 1 work, the Company will submit a follow-up proposal with testing data and documented industry support to continue the development work with a Phase 2 grant. The application is for the maximum Phase 2 grant funding, which can be up to $1.6 million over a two-year duration.

As a reminder, the goal of this project is to develop ultra-low NOx hydrogen burner technology, which we believe will enable the adoption of hydrogen fuel for industrial heating, leading to reductions in the industrial emissions of both carbon dioxide and nitrogen oxides. Current burners and previous efforts to decarbonize industrial combustion processes through the utilization of hydrogen fuel are inhibited by the lack of industrial hydrogen burners capable of burning pure hydrogen while preventing additional Nitrogen Oxides (NOx) emissions.

ClearSign Technologies Corporation

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core™ and ClearSign Eye™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visit

SOURCE ClearSign Technologies Corporation

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