Preliminary engineering data for scale up of a biomass vacuum pyrolysis reactor

Conference · Wed Apr 01 04:00:00 EST 1987 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6307004

Lemieux, R; Roy, C; De Caumia, B; Blanchette, D

The thermal decomposition of wood into charcoal and tar is an old process. One example of the existing technology for wood carbonization is the Lambiotte process. The ATOCHEM plant located in Premery, France, is based on the principle of external gas circulation and is a completely continuous process. The heating gas moves upward in the retort and constantly releases its heat into the wood, which is moving downward. The annual wood charcoal production of this plant is nowadays 20,000 t. The charcoal finds its use in the barbecue and the iron industries. Another example is the Brazilian beehive kiln for charcoal production in a batch mode. In Brazil, charcoal is mainly sold to the iron, the cement and the barbecue industries. In 1986, the total annual production of wood charcoal in Brazil was 7.5 x 10/sup 6/ t. The recovery of by-products is important for the economy of both processes. The French recover high-value chemicals such as food aromas from the pyroligneous liquors. The Brazilians market the wood tar by-product as a bunker fuel oil. However, further studies are still needed and are being conducted by the industry in order to make a greater and a better use of the tar and oil fraction.

• Research Organization: Universite de Sherbrooke, Chemical Engineering Dept., Sherbrooke (Quebec) J1K 2R1
• OSTI ID: 6307004
• Report Number(s): CONF-870410-
• Conference Information: Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 32:2
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ADSORBENTS
BY-PRODUCTS
CARBONIZATION
CHARCOAL
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DATA ANALYSIS
DECOMPOSITION
EUROPE
FRANCE
FUELS
FUNCTIONAL MODELS
OIL YIELDS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PILOT PLANTS
PRODUCTION
PYROLYSIS
PYROLYSIS PRODUCTS
PYROLYTIC OILS
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES
VACUUM SYSTEMS
WESTERN EUROPE
WOOD
YIELDS