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March 14, 2026Industrial & Engineering Chemistry Research

Coupling Electrochemical NO Reduction with Selective Catalytic Reduction for Off-Gas Treatment Without External Reducing Agents

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Authors

MRMichael J. RixWPWenzel PlischkaAMAdrian Martens

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Overview

Novel process combines electrochemical and catalytic reduction of NOx in industrial off-gas, suggesting improved efficiency.

Key Points

  • To develop a process that integrates electrochemical nitrogen oxide reduction and selective catalytic reduction for efficient off-gas treatment.
  • Combined electrochemical nitrogen oxide reduction (NORR) with selective catalytic reduction (SCR)
  • Converted half of NOx to NH3 using NORR
  • Used produced NH3 to reduce the remaining NOx via SCR
  • Conducted techno-economic analysis of the new configuration
  • Reduced electricity consumption for NORR by approximately 50%
  • Eliminated the need for external reducing agents in SCR
  • The new configuration shows slightly higher costs than traditional SCR, with potential for future cost reductions.

Cite This Study

Rix et al. (2026) studied this question.

synapsesocial.com/papers/69b4fbf9b39f7826a300c8e1https://doi.org/10.1021/acs.iecr.5c04884
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