# US 11,439,925 B2 · Multiple-stream pressurized low polarity water extraction apparatus, system, and methods of use

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- Number: US 11,439,925 B2
- Document ID: US11439925B2
- Status: Granted
- Kind: B2
- Application number: 16/979,208
- Filed: 2019-03-08
- Published: 2020-12-31
- Granted: 2022-09-13
- Earliest claimed: 2018-03-09
- Assignees: Sensient Natural Extraction Inc.
- Applicants: Sensient Natural Extraction Inc.
- Inventors: Keegan Blank; Steve Tordiffe; Lisa Ranken
- Web page: https://patentgrep.com/patent/US11439925B2

## CPC

- B01D 11/0284: {Multistage extraction}
- B01D 11/0203: {with a supercritical fluid}
- B01D 11/0207: {Control systems}
- B01D 11/0215: {Solid material in other stationary receptacles}
- B01D 11/0292: {Treatment of the solvent}
- B01J 4/001: {Feed or outlet devices as such, e.g. feeding tubes}
- B01D 11/0288: {Applications, solvents}
- B01J 2204/007: Aspects relating to the heat-exchange of the feed or outlet devices
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

An apparatus for extraction and recovery of components from biomass feedstocks with pressurized low polarity water. The apparatus is configured with four or more reaction columns, wherein each column is in separate communication with a supply of hot water, a first supply of pressurized heated water, a second supply of pressurized heated water, and a supply of pressurized cooling water. Components may be extracted concurrently from two or more batches of the biomass by, first placing the two batches of biomass into two selected columns, separately flooding the two columns with pressurized water, heating the columns and their contents to the point where the water becomes pressurized low polarity (PLP) water, recovering the PLP water comprising the extracted components from the two selected columns, cooling the columns with PLP water, and removing the spent biomass material from the columns.

## Claims

### Claim 1

An apparatus for extracting and recovering components from a biomass feedstock with pressurized low polarity water, comprising:
four or more reaction columns, each column separately communicating with: (i) a supply of heated water, (ii) a first supply of heated pressurized water, (iii) a second supply of heated pressurized water, and (iv) a supply of cooled pressurized water, each column having an outlet for egressing a liquids product flow, configured such that one of the reaction columns optionally receives a flow of heated pressurized water from the first supply of heated pressurized water while a second of the reaction columns is receiving a flow of heated pressurized water from the second supply of heated pressurized water;
a first pump pressurizing a first portion of the supply of heated water to provide said first supply of heated pressurized water downstream of the first pump;
a second pump pressurizing a second portion of the supply of heated water to provide said second supply of heated pressurized water downstream of the second pump;
a first plurality of valves cooperating with each of said reaction columns and (i) the supply of heated water, (ii) the first supply of heated pressurized water, (iii) the second supply of heated pressurized water, and (iv) the supply of cooled pressurized water, for controlling a flow from each of said supplies of hot water, heated pressurized water and cooled pressurized water into each of said reaction columns;
a second plurality of valves cooperating with each of said reaction columns and (i) the supply of heated water, (ii) the first supply of heated pressurized water, (iii) the second supply of heated pressurized water, and (iv) the supply of cooled pressurized water, for controlling a flow of each of said supplies of hot water, heated pressurized water and cooled pressurized water out of each of said reaction columns; and
a collection vessel for receiving a liquids product flow from each of said columns during a period of time when at least one of said columns is receiving a flow from the first supply of pressurized heated water or from the second supply of pressurized heated water.

### Claim 2 (depends on 1)

The apparatus of claim 1, additionally comprising one or more water treatment apparatuses for receiving and purifying therein a waste water flow egressing from each of said reaction columns after each of said reaction columns has been de-pressurized.

### Claim 3 (depends on 2)

The apparatus of claim 2, additionally comprising an apparatus for processing the purified water by one or more of heating and pH adjustment.

### Claim 4 (depends on 1)

The apparatus of claim 1, additionally comprising a reservoir for storing a portion of a water source in fluid communication with the supply of heated water.

### Claim 5 (depends on 1)

The apparatus of claim 1, additionally comprising a reservoir for storing a portion of a waste water flow egressing from each of said reaction columns after each of said reaction columns has been de-pressurized.

### Claim 6 (depends on 1)

The apparatus of claim 1, additionally comprising one or more additional collection vessels for receiving therein the liquids product flow from each of said columns during a period of time when each of said columns is receiving a flow of hot pressurized water from the first supply of hot pressurized water or from the second supply of hot pressurized water.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the supply of heated water comprises a first piping infrastructure communicating with a water source, at least one first heat exchanger, at least one first heater, and a first back pressure regulator for flooding each of said reaction columns with hot water and generating pressurized low polarity water.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the supply of heated water comprises a second piping infrastructure communicating with a water source, at least one second heat exchanger, at least one second heater, and a second back pressure regulator for warming each of said reaction columns to a selected temperature.

### Claim 9 (depends on 1)

The apparatus of claim 1, wherein the supply of heated water comprises a third piping infrastructure communicating with a water source, at least one third heat exchanger, at least one third heater, and a third back pressure regulator for continuously flowing hot pressurized low polarity water through one of said reaction columns, said third piping infrastructure additionally communicating with said collection vessel.

### Claim 10 (depends on 1)

The apparatus of claim 1, wherein the supply of heated water comprises a fourth piping infrastructure communicating with a water source, at least one fourth heat exchanger, at least one fourth heater, and a fourth back pressure regulator for cooling each of said reaction columns to a selected temperature.

### Claim 11 (depends on 1)

The apparatus of claim 1, additionally comprising an automated control system communicating with the four or more reaction columns, the supply of heated water, the first and second supplies of heated pressurized water, the supply of cooled pressurized water, the pumps for pressurizing each of said reaction columns, and the first and second pluralities of valves for controllably sequentially directing the flow of water into a first piping infrastructure, a second piping infrastructure, a third piping infrastructure, and a fourth piping infrastructure.

### Claim 12 (depends on 11)

The apparatus of claim 11, wherein the automated control system is programmable.

### Claim 13 (depends on 11)

The apparatus of claim 11, wherein the automated control system is manually operable.

### Claim 14 (depends on 1)

The apparatus of claim 1, additionally comprising a manual control system communicating with the four or more reaction columns, the supply of heated water, the first and second supplies of heated pressurized water, the supply of cooled pressurized water, the pumps for pressurizing each of said reaction columns, and the first and second pluralities of valves for controllably sequentially directing the flow of water into a first piping infrastructure, a second piping infrastructure, a third piping infrastructure, and a fourth piping infrastructure.