Molecular-beam sampling/mass spectrometric studies of the primary pyrolysis mechanisms of biomass, fossil organic matter, and synthetic polymers
To accomplish the determination of primary product composition, the flash pyrolysis of samples in 900/sup 0/C steam/He has been coupled with a molecular-beam sampling system for a mass spectrometer that permits real-time sampling and rapid quenching from ambient hot environments, while preserving reactive and condensible species. The major emphasis of this report is on the determination of the primary pyrolysis mechanisms of the fast pyrolysis of lignocellulosic biomass and its major constituents: cellulose, hemicellulose (particularly the pentoses, xylan and arabinan), and lignin. Other carbonaceous materials are also included for the purposes of comparison and demonstrating the technique, but pyrolysis mechanisms will not be discussed. These materials include Texas lignite, Pittsburgh number8 coal, Utah tar sand, Colorado oil shale, high-moor and low-moor peat, polyethylene, and polystyrene. The plastics are included because they are an important component of municipal solid waste and refuse-derived fuel.
- Research Organization:
- Solar Energy Res. Inst., Golden, CO
- OSTI ID:
- 6089117
- Journal Information:
- Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States), Vol. 29:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
BIOMASS
PYROLYSIS
PYROLYSIS PRODUCTS
STRUCTURAL CHEMICAL ANALYSIS
ORGANIC MATTER
POLYMERS
MASS SPECTROSCOPY
QUENCHING
SAMPLING
CELLULOSE
COAL
CONTROLLED ATMOSPHERES
FLASH HEATING
HELIUM
LIGNIN
MOLECULAR BEAMS
OIL SANDS
OIL SHALES
PEAT
POLYETHYLENES
POLYSTYRENE
REFUSE DERIVED FUELS
SOLID WASTES
SYNTHETIC MATERIALS
ATMOSPHERES
BEAMS
BITUMINOUS MATERIALS
CARBOHYDRATES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HEATING
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYOLEFINS
POLYSACCHARIDES
POLYVINYLS
RARE GASES
RENEWABLE ENERGY SOURCES
SACCHARIDES
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
WASTES
010600* - Coal
Lignite
& Peat- Properties & Composition
040500 - Oil Shales & Tar Sands- Properties & Composition