Process for recovering hydrocarbons from hydrocarbon-containing biomass
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
- Country of Publication:
- United States
- Language:
- English
Similar Records
Conversion of cellulosic materials to sugar
Enzymatic hydrolysis of beer brewers' spent grain and the influence of pretreatments
Related Subjects
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
BIOMASS
CARBOHYDRATES
CELLULASE
CELLULOSE
CHEMICAL REACTIONS
CULTURE MEDIA
DECOMPOSITION
ELASTOMERS
ENERGY SOURCES
ENZYMATIC HYDROLYSIS
ENZYME ACTIVITY
ENZYMES
GLYCOSYL HYDROLASES
HEMICELLULOSE
HYDROCARBONS
HYDROLASES
HYDROLYSIS
LATEX
LYSIS
MICROORGANISMS
O-GLYCOSYL HYDROLASES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYSACCHARIDES
PRODUCTION
RECOVERY
RECYCLING
RENEWABLE ENERGY SOURCES
RUBBERS
SACCHARIDES
SOLUBILITY
SOLVOLYSIS