Process for fractionating fast-pyrolysis oils, and products derived therefrom

Patent · Tue Jul 17 00:00:00 EDT 1990

OSTI ID:6467766

Chum, H L; Black, S K

This patent describes a process for fractionating fast-pyrolysis oils from biomass materials to produce phenolic compounds/neutral fractions extract, wherein the neutral fractions have molecular widths of 100 to 800; the extract being substitutable for a part of the phenol in phenol-formaldehyde resins. It comprises: admixing the oils with an organic solvent having a solubility parameter of approximately 8.4-9.1 polar components in the 1.8-3.0 range and hydrogen bonding components in the 2-4.8 range; separating the organic solvent-soluble fraction containing the phenolic compounds/neutral fraction from the mixture and admixing it with water to extract water-soluble materials therefrom; separating the organic solvent-soluble fraction for the water fraction and admixing the solvent fraction with an aqueous alkali metal bicarbonate solution to extract strong organic acids and highly polar compounds from the solvent fractions; and separating the residual organic solvent-soluble fraction and removing the organic solvent therefrom to produce the phenolic compounds/neutral fractions extract.

• Assignee: Midwest Research Inst., Kansas City, MO (USA)
• Patent Number(s): US 4942269; A
• Application Number: PPN: US s 7-169506
• OSTI ID: 6467766
• Resource Relation: Patent File Date: 17 Mar 1988
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
PYROLYTIC OILS
FRACTIONATION
AQUEOUS SOLUTIONS
BIOMASS
ORGANIC ACIDS
ORGANIC SOLVENTS
PHENOLS
SODIUM CARBONATES
ALKALI METAL COMPOUNDS
AROMATICS
CARBON COMPOUNDS
CARBONATES
DISPERSIONS
ENERGY SOURCES
FUELS
HYDROXY COMPOUNDS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PYROLYSIS PRODUCTS
RENEWABLE ENERGY SOURCES
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLUTIONS
SOLVENTS
SYNTHETIC FUELS
090900* - Biomass Fuels- Processing- (1990-)