Process for recovering hydrocarbons from hydrocarbon-containing biomass

Patent · Tue Jul 06 00:00:00 EDT 1982

OSTI ID:6658883

Dzadzic, P M; Price, M C; Shih, C J; Weil, T A

A process is disclosed for enzymatically converting whole plant biomass containing hydrocarbon-containing laticifers to soluble sugars and recovering hydrocarbons in increased yields. The process comprises hydrolyzing whole plant cellulosic material in the presence of enzymes, particularly cellulase, hemicellulase, and pectinase, to produce a hydrocarbon product and recovering from the hydrolysis products a major proportion of the cellulase, hemicellulase and pectinase enzymes for reuse. At least some portion of the required make-up of cellulase, hemicellulase and pectinase enzymes is produced in a two-stage operation wherein, in the first stage, a portion of the output sugar solution is used to grow enzyme secreting microorganisms selected from the group consisting of cellulase-secreting microorganisms, hemicellulase-secreting microorganisms, pectinase-secreting microorganisms, and mixtures thereof, and in the second stage, cellulase, hemicellulase and pectinase enzyme formation is induced in the microorganism-containing culture medium by the addition of an appropriate inducer such as biomass. The cellulase, hemicellulase and pectinase enzymes are then recycled for use in the hydrolysis reaction.

• Assignee: Standard Oil Co (indiana)
• Patent Number(s): US 4338399
• OSTI ID: 6658883
• Resource Relation: Patent File Date: Filed date 15 Sep 1980; Other Information: PAT-APPL-187492
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
CELLULASE
RECYCLING
CELLULOSE
ENZYMATIC HYDROLYSIS
HYDROCARBONS
RECOVERY
BIOMASS
CULTURE MEDIA
ENZYME ACTIVITY
HEMICELLULOSE
LATEX
MICROORGANISMS
PRODUCTION
SACCHARIDES
SOLUBILITY
CARBOHYDRATES
CHEMICAL REACTIONS
DECOMPOSITION
ELASTOMERS
ENERGY SOURCES
ENZYMES
GLYCOSYL HYDROLASES
HYDROLASES
HYDROLYSIS
LYSIS
O-GLYCOSYL HYDROLASES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYSACCHARIDES
RENEWABLE ENERGY SOURCES
RUBBERS
SOLVOLYSIS
140504* - Solar Energy Conversion- Biomass Production & Conversion- (-1989)