High-pressure condensate recycle in the manufacture of purified aromatic carboxylic acids
AssigneeBP Corporation North America Inc.
InventorsFred T. Clark, Thomas M. Bartos, Allen Nelson
Life of this patent
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Abstract
Processes for manufacturing purified aromatic carboxylic acids include: generating high-pressure steam from boiler feed water supplied to a boiler; heating a crude aromatic carboxylic acid using the high-pressure steam, whereby the high pressure steam is condensed to form a high-pressure condensate; and purifying the crude aromatic carboxylic acid to form a purified aromatic carboxylic acid. The boiler feed water includes at least a portion of the high-pressure condensate and makeup boiler feed water from at least one additional source.
Claims12
A process for manufacturing a purified aromatic carboxylic acid comprising:
- generating high-pressure steam from boiler feed water supplied to a boiler;
- heating a crude aromatic carboxylic acid in a heating zone using the high-pressure steam, whereby the high pressure steam is condensed in the heating zone to form a high-pressure condensate;
- and
- purifying the crude aromatic carboxylic acid to form a purified aromatic carboxylic acid;
- wherein the boiler feed water comprises at least a portion of the high-pressure condensate.
Dependencies are inferred from the claim text.