Title: Bio-oil fractionation and condensation

Abstract

The present invention relates to a method of fractionating bio-oil vapors which involves providing bio-oil vapors comprising bio-oil constituents. The bio-oil vapors are cooled in a first stage which comprises a condenser having passages for the bio-oil separated by a heat conducting wall from passages for a coolant. The coolant in the condenser of the first stage is maintained at a substantially constant temperature, set at a temperature in the range of 75 to 100.degree. C., to condense a first liquid fraction of liquefied bio-oil constituents in the condenser of the first stage. The first liquid fraction of liquified bio-oil constituents from the condenser in the first stage is collected. Also disclosed are steps for subsequently recovering further liquid fractions of liquefied bio-oil constituents. Particular compositions of bio-oil condensation products are also described.

Inventors:

Brown, Robert C.; Jones, Samuel T.; Pollard, Anthony

Issue Date:

Tue Apr 04 00:00:00 EDT 2017

Research Org.:

Iowa State University Research Foundation, Inc. Ames, IA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1349728

Patent Number(s):

9611439

Application Number:

13/905,112

Assignee:

Iowa State University Research Foundation, Inc.

Patent Classifications (CPCs):

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10B - DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10C - WORKING-UP PITCH, ASPHALT, BITUMEN, TAR

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C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10B - DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS

C10B53/02 - of cellulose-containing material

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10C - WORKING-UP PITCH, ASPHALT, BITUMEN, TAR

C10C5/00 - Production of pyroligneous acid {distillation of wood, dry distillation of organic waste}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS

C10G1/02 - by distillation

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE

C10K1/04 - by cooling to condense non-gaseous materials {

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR

C10L1/1802 - {natural products, e.g. waxes, extracts, fatty oils}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E50/10 - Biofuels

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DOE Contract Number:  

FG36-07GO87003

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 May 29

Country of Publication:

United States

Language:

English

Subject:

09 BIOMASS FUELS