Experimental results presented in this paper indicate that coal devolatilization products convectively remove a fraction of the nonvolatile components of inorganic material atomically dispersed in the coal matrix. Results from three facilities burning six different coals illustrate this mechanism of
Sulfur release during the devolatilization of large coal particles
✍ Scribed by Francisco García-Labiano; Juan Adánez; Edward Hampartsoumian; Alan Williams
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 556 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Analysis of devolatilization of predried large coal particles in fluidized beds requires consideration of both the chemical kinetics of coal decomposition and transport processes. Models available either assume the devolatilization particle to be isothermal (whereas it may be shown that, in general,
Devolatilization times of large (0.1 and 0.2 g) Utah hvBb and North Dakota lignite coal particles, in the range 15-30s were measured in air at 101 and 507 kPa, at air temperatures of 900 and 1200K in a convective flow reactor. Visual observations indicated infrequent heterogeneous ignition of the li