# US 10,119,077 B2 · Pyroligneous acid production methods, products, and systems

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- Number: US 10,119,077 B2
- Document ID: US10119077B2
- Status: Granted
- Kind: B2
- Application number: 15/424,835
- Filed: 2017-02-04
- Published: 2017-09-21
- Granted: 2018-11-06
- Earliest claimed: 2016-02-04
- Assignees: Proton Power, Inc.
- Applicants: Proton Power, Inc.
- Inventors: Samuel C. Weaver; Priyanka Bhattacharya; Anthony Justin Lundy; Joseph William Hargrove
- Web page: https://patentgrep.com/patent/US10119077B2

## CPC

- C10C 5/00: Production of pyroligneous acid {distillation of wood, dry distillation of organic waste}(carbonisation of wood C10B)
- C10B 53/02: of cellulose-containing material (production of pyroligneous acid C10C5/00)
- Y02E 50/10: Biofuels, e.g. bio-diesel
- C10C: WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID (compositions of bituminous materials C08L95/00; carbon filaments by decomposition of organic filaments D01F9/14)
- C10B: DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS (cracking oils C10G; underground gasification of minerals E21B43/295)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Tools and techniques for pyroligneous acid production are provided in accordance with various embodiments. For example, a method of pyroligneous acid production is provided. The method may include: introducing a compound that includes at least carbon, oxygen, and hydrogen into a reaction chamber; heating the compound to a temperature of at least 700 degrees Celsius in the reaction chamber such that the compound reacts through a pyrolysis reaction to produce a liquid, where the liquid may include pyroligneous acid; and/or collecting the produced liquid. In some cases, the residence time of the compound may be less than 1,000 seconds. Temperatures above 1,000 degrees Celsius may be utilized in some cases. The produced liquid may be separated into an oil component and a water component that includes the pyroligneous acid. A lighter fraction may be distilled from the water component, where the lighter component includes the pyroligneous acid.

## Claims

### Claim 1

A method of pyroligneous acid production comprising:
introducing a compound that includes at least carbon, oxygen, and hydrogen into a reaction chamber;
heating the compound to a temperature of at least 700 degrees Celsius in the reaction chamber such that the compound reacts through a pyrolysis reaction to produce a liquid, wherein the liquid includes pyroligneous acid;
collecting the produced liquid;
separating the produced liquid into at least an oil component and a water component, wherein the water component includes a portion of the pyroligneous acid;
distilling a lighter fraction from the water component, wherein the lighter fraction includes a portion of the pyroligneous acid;
sparging the distilled lighter fraction, wherein the distilled lighter fraction includes a portion of the pyroligneous acid; and
flaring a gas produced from sparging the distilled lighter fraction, wherein the gas includes at least benzene or toluene.

### Claim 2 (depends on 1)

The method of claim 1, further comprising distilling a heavier fraction from the water component.

### Claim 3 (depends on 2)

The method of claim 2, further comprising burning the heavier fraction.

### Claim 4 (depends on 2)

The method of claim 2, further comprising utilizing the heavier fraction as a binder.

### Claim 5 (depends on 1)

The method of claim 1, wherein the temperature is at least 800 degrees Celsius.

### Claim 6 (depends on 5)

The method of claim 5, wherein the temperature is at least 900 degrees Celsius.

### Claim 7 (depends on 6)

The method of claim 6, wherein the temperature is at least 1,000 degrees Celsius.

### Claim 8 (depends on 7)

The method of claim 7, wherein the temperature is less than or equal to 1,100 degrees Celsius.

### Claim 9 (depends on 1)

The method of claim 1, wherein the compound has a residence time in the reaction chamber between 10 seconds and 1,000 seconds.

### Claim 10 (depends on 9)

The method of claim 9, wherein the compound has a residence time in the reaction chamber of 300 seconds or less.

### Claim 11 (depends on 10)

The method of claim 10, wherein the compound has a residence time in the reaction chamber of 120 seconds or less.

### Claim 12 (depends on 1)

The method of claim 1, wherein the pyrolysis reaction includes a hydrous pyrolysis reaction.

### Claim 13 (depends on 1)

The method of claim 1, wherein the compound includes at least a biomass or a waste product.

### Claim 14 (depends on 1)

The method of claim 1, further comprising filtering the water component.

### Claim 15 (depends on 1)

The method of claim 1, further comprising filtering the lighter fraction.

### Claim 16 (depends on 1)

The method of claim 1, further comprising drying the compound prior to introducing the compound into the reaction chamber.

### Claim 17 (depends on 16)

The method of claim 16, wherein drying the compound reduces a water content of the compound to 10 percent or less.

### Claim 18 (depends on 1)

The method of claim 1, wherein the compound includes a wet compound formed from mixing the compound with water outside the reaction chamber.

### Claim 19

A method of pyroligneous acid production comprising:
introducing a compound that includes at least carbon, oxygen, and hydrogen into a reaction chamber;
heating the compound to a temperature of at least 700 degrees Celsius in the reaction chamber such that the compound reacts through a pyrolysis reaction to produce a liquid, wherein the liquid includes pyroligneous acid;
collecting the produced liquid;
separating the produced liquid into at least an oil component and a water component, wherein the water component includes a portion of the pyroligneous acid; and
adding a surfactant to the water component.
