# US 10,767,114 B2 · Pyrolysis system and method for bio-oil component extraction

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- Number: US 10,767,114 B2
- Document ID: US10767114B2
- Status: Granted
- Kind: B2
- Application number: 14/568,422
- Filed: 2014-12-12
- Published: 2015-04-23
- Granted: 2020-09-08
- Earliest claimed: 2013-05-31
- Assignees: Tolero Energy, LLC
- Applicants: Tolero Energy, LLC
- Inventors: Raymond Bélanger; Christopher Churchill
- Web page: https://patentgrep.com/patent/US10767114B2

## CPC

- C10B 53/02: of cellulose-containing material (production of pyroligneous acid C10C5/00)
- B01D 5/0027: {by direct contact between vapours or gases and the cooling medium}
- B01D 5/006: {with evaporation or distillation}
- B01D 5/0087: {Recirculating of the cooling medium}
- C10C 5/00: Production of pyroligneous acid {distillation of wood, dry distillation of organic waste}(carbonisation of wood C10B)
- C10K 1/04: by cooling to condense non-gaseous materials {(C10K1/001 takes precedence)}
- C10K 1/08: by washing with liquids; Reviving the used wash liquors (gas washers B01D)
- C10K 1/18: hydrocarbon oils {(C10K1/165 takes precedence)}
- C10L 1/026: {for compression ignition}
- C10L 1/1817: {Compounds of uncertain formula; reaction products where mixtures of compounds are obtained}
- B01D 5/003: {within column(s)}
- C10G 1/02: by distillation
- C10L 2200/0469: Renewables or materials of biological origin
- C10L 2270/026: for diesel engines, e.g. automobiles, stationary, marine
- C10L 2290/02: Combustion or pyrolysis
- C10L 2290/544: Extraction for separating fractions, components or impurities during preparation or upgrading of a fuel
- Y02E 50/10: Biofuels, e.g. bio-diesel
- Y02E 50/30: Fuel from waste, e.g. synthetic alcohol or diesel
- C10B: DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS (cracking oils C10G; underground gasification of minerals E21B43/295)
- 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)
- C10C: WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID (compositions of bituminous materials C08L95/00; carbon filaments by decomposition of organic filaments D01F9/14)
- C10K: PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10L: FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A system is described that includes a pyrolyzer and a primary condenser. The primary condenser is coupled to the pyrolyzer and configured to receive pyrolytic vapors from the pyrolyzer. The primary condenser is further configured to condense the pyrolytic vapors by contacting the pyrolytic vapors with a condensing liquid, to form a bio-oil component mixture having multiple separated phases. At least a portion of the condensing liquid includes a component that is extracted as a separated stable phase from a second bio-oil component mixture resulting from a prior pyrolysis cycle.

## Claims

### Claim 1

A pyrolysis system comprising:
a pyrolyzer;
a primary condenser, coupled to the pyrolyzer and configured to receive pyrolytic vapors from the pyrolyzer, and further configured to condense the pyrolytic vapors by contacting the pyrolytic vapors with a non-polar condensing liquid, to form a component mixture, such that the component mixture is phase separated into multiple separated phases, the component mixture including a non-polar bio-oil component originating from the pyrolytic vapors and a non-polar solvent component not originating from a pyrolysis process;
wherein at least a portion of the non-polar condensing liquid comprises a fraction that is extracted as a separated stable phase from a second bio-oil component mixture resulting from a prior pyrolysis cycle.

### Claim 2 (depends on 1)

The system according to claim 1, wherein at least a portion of the non-polar condensing liquid is loaded with chemical properties associated with the second bio-oil component mixture.

### Claim 3 (depends on 1)

The system according to claim 1, further comprising:
an extractor to extract at least one of the multiple separated phases from the bio-oil component mixture to obtain a second non-polar condensing liquid.

### Claim 4 (depends on 3)

The system according to claim 3, wherein at least a portion of the second non-polar condensing liquid is recycled for use with the non-polar condensing liquid.

### Claim 5 (depends on 4)

The system according to claim 4, and further comprising:
a capture vessel to receive the bio-oil component mixture having multiple separated phases; and
a recirculator coupled to the capture vessel and the primary condenser, the recirculator configured to provide at least a portion of the second non-polar condensing liquid to the primary condenser.

### Claim 6 (depends on 1)

The system of claim 1, wherein the non-polar solvent component comprises a higher alkane.

### Claim 7

A system for pyrolyzing material, the system comprising:
a pyrolyzer;
a primary condenser, coupled to the pyrolyzer and configured to receive pyrolytic vapors from the pyrolyzer, and further configured to condense the pyrolytic vapors by contacting the pyrolytic vapors with a non-polar condensing liquid, to form a bio-oil component mixture, such that the bio-oil component mixture is phase separated into multiple separated phases, the component mixture including a non-polar bio-oil component originating from the pyrolytic vapors and a non-polar solvent component not originating from a pyrolysis process;
a capture vessel to receive the bio-oil component mixture; and
a recirculator coupled to the capture vessel and the primary condenser, the recirculator configured to provide at least one of the multiple phases of the bio-oil component mixture as a second non-polar condensing liquid for use as at least a portion of the non-polar condensing liquid used in the primary condenser.

### Claim 8 (depends on 7)

The system according to claim 7, further comprising:
an extractor to extract the second non-polar condensing liquid from the bio-oil component/solvent mixture.

### Claim 9 (depends on 8)

The system according to claim 8, wherein the extractor operates to extract the second non-polar condensing liquid in a batch or continuous basis.

### Claim 10 (depends on 8)

The system according to claim 8, wherein the extractor comprises one from the group of an atmospheric or reduced pressure distiller, evaporator, flash evaporator, or others.

### Claim 11 (depends on 7)

The system of claim 7, wherein the non-polar solvent component comprises a higher alkane.
