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US 12,637,404 B2Granted
Methods and systems for concentrating acetic acid solutions with a multi-tier, ultrahigh pressure reverse osmosis
AssigneePorifera, Inc.
InventorCharles Knight Benton
Life of this patent
Estimating the term…
Abstract
Examples relate to systems and methods for concentrating acetic acid solutions using multi-tier ultrahigh pressure (“UHP”) reverse osmosis. Along with an acetic acid product having a concentration of at least 25 weight percent (wt %), the systems and methods disclosed herein simultaneously provide water with an acetic acid concentration of 2 wt % or less in at little as three tiers.
Claims18
A method for concentrating acetic acid solutions, the method comprising:
- subjecting a feed stream including an acetic acid solution to a first ultrahigh pressure reverse osmosis process to form a first concentrate stream and a first permeate stream;
- subjecting the first concentrate stream to a second ultrahigh pressure reverse osmosis process to form a second concentrate stream and a second permeate stream;
- subjecting the first permeate stream to a third ultrahigh pressure reverse osmosis process to form a third permeate stream and a third concentrate stream;
- and
- combining the feed stream, the second permeate stream, and the third concentrate stream prior to subjecting the feed stream to the first ultrahigh reverse osmosis process.
2 more elements
A method for concentrating acetic acid solutions, the method comprising:
- subjecting a feed stream including an acetic acid solution to a first ultrahigh pressure reverse osmosis process to form a first concentrate stream and a first permeate stream;
- subjecting the first concentrate stream to a second ultrahigh pressure reverse osmosis process to form a second concentrate stream and a second permeate stream;
- and
- subjecting the first permeate stream to a third ultrahigh pressure reverse osmosis process to form a third permeate stream and a third concentrate stream, wherein subjecting a feed stream including an acetic acid solution to a first ultrahigh pressure reverse osmosis process includes circulating the feed stream through a first ultrahigh pressure membrane module array at an ultrahigh pressure, wherein subjecting the first concentrate stream to a second ultrahigh pressure reverse osmosis process to form a second concentrate stream and a second permeate stream includes circulating the first concentrate stream through a second ultrahigh pressure membrane module array at the ultrahigh pressure.
1 more element
A system for concentrating acetic acid solutions, the system comprising:
- a first ultrahigh pressure reverse osmosis membrane module array configured to receive a feed stream including an acetic acid solution and produce a first concentrate stream and a first permeate stream;
- a second ultrahigh pressure reverse osmosis membrane module array configured to receive the first concentrate stream and produce a second concentrate stream and a second permeate stream;
- and
- a third ultrahigh pressure reverse osmosis membrane module array configured to receive the first permeate stream and produce a third concentrate stream and a third permeate stream, wherein the second permeate stream is fluidly connected to the third concentrate stream and the feed stream prior to the first ultrahigh pressure reverse osmosis membrane module array.
1 more element
A method for concentrating acetic acid solutions, the method comprising:
- circulating a feed stream including an acetic acid solution through a first ultrahigh pressure reverse osmosis membrane module array at a first pressure of at least 1500 psi to form a first concentrate stream and a first permeate stream;
- circulating the first concentrate stream through a second ultrahigh pressure reverse osmosis membrane module array at a second pressure of at least 1500 psi to form a second concentrate stream and a second reverse osmosis permeate;
- circulating the first permeate stream through a third ultrahigh pressure reverse osmosis membrane module array at a third pressure of at least 1500 psi to form a third permeate stream and a third reverse osmosis concentrate;
- and
- combining the feed stream, the second reverse osmosis permeate, and the third reverse osmosis concentrate prior to circulating the feed stream through the first ultrahigh pressure reverse osmosis membrane module array.
2 more elements
Dependencies are inferred from the claim text.