Bench-scale studies on fluid-bed pyrolysis of wood
The primary objective of this study was to determine the effects of different contact gases and experimental conditions on product yields from fluid-bed wood pyrolysis. The yield of condensible hydrocarbons was of particular interest. The contact gases employed included carbon dioxide (CO/sub 2/), methane (CH/sub 4/), and hydrogen (H/sub 2/). Reaction temperatures ranged from 650/degree/C to 800/degree/C, and gas contact time was between 1 and 2 s. Tests with CO/sub 2/ contact gas used a secondary vessel of catalyst for cracking of condensibles generated in the primary gasifier. Results of earlier studies at PNL showed the effectiveness of various catalysts for destruction of condensible hydrocarbons. Analyses of results on the effects of contact gas, reaction temperature, gas contact time, and wood feed rate are presented in this report, along with a description of experimental equipment and methods. Data were obtained from single tests at each set of experimental conditions. Conditions were not repeated to determine the amount of experimental error. Material balance closures were generally quite good for the experimental tests, within 10%. 9 refs., 15 figs., 16 tabs.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6833612
- Report Number(s):
- PNL-6114; ON: DE88015834
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BIOMASS CONVERSION PLANTS
BENCH-SCALE EXPERIMENTS
METHANE
PRODUCTION
PYROLYTIC GASES
CHEMICAL COMPOSITION
SYNTHESIS GAS
WOOD
PYROLYSIS
CARBON DIOXIDE
FLUIDIZED BEDS
HYDROGEN
NUMERICAL DATA
RENEWABLE RESOURCES
TEMPERATURE DEPENDENCE
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ELEMENTS
FLUIDS
GASES
HYDROCARBONS
INFORMATION
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS PRODUCTS
RESOURCES
THERMOCHEMICAL PROCESSES
090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry