The role of pore structure on char reactivity. Quarterly progress report, [April--June 1993]
Studies will be conducted on coal chars in the electrodynamic balance to examine the role of mesopore structure on reactivity. Larger particles will also be examined using a fluidized bed to examine diffusion control reactions. Soots will also be investigated to examine the role of meso- and micro-pores without macro-pore interference. These studies will allow a full range of particles sizes and temperatures to be investigated and eventually modelled. The project continues with to focus on the development and refinement on the equipment that will provide the data needed for modelling. Work has continued on the electrodynamic balance (EDB) for use in measurement of char micropores. While refinements of the system have proceeded at a reasonable pace, and many control tests have been made to characterize the system. The control system still does not work well without heating by the laser source. Most of the work in the last three months has focused on the fluidized bed. The system is essentially complete, and tests have been run to determine the extent of back-mixing and delay time. No significant problems were found with the system.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-91PC91294
- OSTI ID:
- 10191997
- Report Number(s):
- DOE/PC/91294-T7; ON: DE94002174; BR: AA1525050
- Resource Relation:
- Other Information: PBD: Jul 1993
- Country of Publication:
- United States
- Language:
- English
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