§98.290. Definition of the source category.
40 C.F.R. § 98.290
A soda ash manufacturing facility is any facility with a manufacturing line that produces soda ash by one of the methods in paragraphs (a)(1) through (3) of this section:
Calcining trona.
Calcining sodium sesquicarbonate.
Using a liquid alkaline feedstock process that directly produces CO<I>2</I>.
In the context of the soda ash manufacturing sector, “calcining” means the thermal/chemical conversion of the bicarbonate fraction of the feedstock to sodium carbonate.
Notes, amendments, and revision history
Authority
Authority: 42 U.S.C. 7401-7671q.
Source
Source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.