['Air Programs']
['Greenhouse Gases']
09/24/2025
...
This source category includes any facility that produces caprolactam, glyoxal, or glyoxylic acid. This source category excludes the production of glyoxal through the LaPorte process (i.e., the gas-phase catalytic oxidation of ethylene glycol with air in the presence of a silver or copper catalyst).
[89 FR 31948, Apr. 25, 2024]
['Air Programs']
['Greenhouse Gases']
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