Air Quality Implications of Using Ammonia as a Renewable Fuel: How Low Can NOx Emissions Go?
Source abstract
Abstract
High Resolution Image Download MS PowerPoint Slide In addition to their lifecycle carbon emissions, another important issue with decarbonized energy pathways is their air quality, water, or land use implications. This paper considers the air quality issue for ammonia combustion. When directly combusting ammonia, reactions of its N atom with atmospheric oxygen lead to NO x emissions that are O(10 3 ) ppm, 2 orders of magnitude higher than EPA limits or the amount emitted by current natural-gas-fired technologies. In order to provide guidance to policymakers and technologists on what is fundamentally possible, this Perspective analyzes the fundamental minimum NO x emissions that can be produced from ammonia combustion. The analysis shows that it is possible to achieve quite low NO x emission levels of O(10) ppm, but these designs differ markedly from those used in today’s lean, premixed combustion systems.
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Research context
OpenAlex topics: Atmospheric chemistry and aerosols · Advanced Combustion Engine Technologies · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
EPRI, Charlotte, North Carolina 28262, United States
Funding
National Energy Technology Laboratory · Electric Power Research Institute · GTI Energy
References (25)
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