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US 10,099,988 B2Granted
Process for production of acrylic acid
AssigneeNovomer, Inc.
InventorsJay J. Farmer, Peter Galebach, Kyle Sherry, Sadesh H. Sookraj
Life of this patent
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Abstract
Provided are integrated processes for the conversion of beta propiolactone to acrylic acid. Systems for the production of acrylic acid are also provided.
Claims12
A method for producing acrylic acid, comprising:
- (a) providing a feedstock stream comprising beta propiolactone;
- (b) directing the feedstock stream to a reaction zone;
- (c) contacting the feedstock stream with a polymerization catalyst in the reaction zone;
- (d) polymerizing at least a portion of the beta propiolactone to poly(propiolactone) in the reaction zone, wherein the temperature of the reaction zone is at or above the pyrolysis temperature of poly(propiolactone);
- (e) thermally decomposing the poly(propiolactone) in the reaction zone to produce acrylic acid;
- and
- (f) withdrawing an acrylic acid product stream comprising the acrylic acid from the reaction zone;
- wherein steps (b) and (e) occur in the same reaction zone.
5 more elements
Dependencies are inferred from the claim text.