Continuous steam hydrolysis of tulip poplar

Conference · Sun Aug 01 04:00:00 EDT 1982 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:5516010

Fieber, C; Colcord, A R; Faass, S; Muzzy, J D; Roberts, R S

To produce ethanol from hardwood it is desirable to fractionate the hardwood in order to produce a relatively pure cellulosic pulp for dilute acid hydrolysis. An experimental investigation of continuous steam hydrolysis of tulip poplar wood chips indicates that over 90% of the lignin present can be extracted by 0.1N sodium hydroxide, resulting in a cellulose pulp containing over 90% hexosan. The study was performed using a Stake Technology, Ltd., continuous digester rated at one oven dry ton per hour of wood chips. The yields of hexosans, hexoses, xylan, xylose, lignin, furfural, acetic acid and methanol were determined as a function of residence time and steam pressure in the digester. The information provides a basis for establishing a material and energy balance for a hardwood to ethanol plant.

• Research Organization: Georgia Inst. of Technology, Atlanta, GA
• OSTI ID: 5516010
• Report Number(s): CONF-820814-
• Conference Information: Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
299003* -- Energy Planning & Policy-- Unconventional Sources & Power Generation-- Other-- (-1989)
ACETIC ACID
ACID HYDROLYSIS
ALCOHOLS
ALDEHYDES
ALKALI METAL COMPOUNDS
BIOCONVERSION
BIOMASS
CARBOHYDRATES
CARBOXYLIC ACIDS
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ENERGY BALANCE
ENERGY SOURCES
ETHANOL
EXTRACTION
FRACTIONATION
FURANS
FURFURAL
HEMICELLULOSE
HETEROCYCLIC COMPOUNDS
HEXOSES
HYDROGEN COMPOUNDS
HYDROLYSIS
HYDROXIDES
HYDROXY COMPOUNDS
LIGNIN
LYSIS
MATERIALS TESTING
METHANOL
MIXTURES
MONOCARBOXYLIC ACIDS
MONOSACCHARIDES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PENTOSES
PLANTS
POLYSACCHARIDES
POPLARS
PRODUCTION
RENEWABLE ENERGY SOURCES
SACCHARIDES
SEPARATION PROCESSES
SLURRIES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOLVENT EXTRACTION
SOLVOLYSIS
STEAM
SUSPENSIONS
TESTING
TREES
WOOD
XYLANS
XYLOSE