Toxic substances from coal combustion -- A comprehensive assessment. Quarterly report number 2, January 1--March 31, 1996

Technical Report · Mon Apr 01 04:00:00 EST 1996

DOI:https://doi.org/10.2172/257357· OSTI ID:257357

Bool, III, L E; Senior, C L ^[1]; Huggins, F; Huffman, G P; Shah, N ^[2]; Wendt, J ^[3]; Sarofim, A F; Zeng, T ^[4]

---

1. PSI Technology Co., Andover, MA (United States)
2. Univ. of Kentucky, Lexington, KY (United States)
3. Univ. of Arizona, Tucson, AZ (United States)
4. Massachusetts Inst. of Tech., Cambridge, MA (United States)

The technical objectives of this project are: to identify the effect of the mode-of-occurrence of toxic elements in coal on the partitioning of these elements among vapor, submicron fume, and fly ash during the combustion of pulverized coal; to identify the mechanisms governing the post-vaporization interaction of toxic elements and major minerals or unburnt char; to determine the effect of combustion environment (i.e., fuel rich or fuel lean) on the partitioning of trace elements between vapor, submicron fume, and fly ash during the combustion of pulverized coal; to model the partitioning of toxic elements between various chemical species in the vapor phase and between the vapor phase and complex aluminosilicate melts; and to develop a frame work for incorporating the results of the program into the Engineering Model for Ash Formation (EMAF). A description of the work plan for accomplishing these objectives is presented in Section 2 of this report. In Section 3 of this report the authors define a detailed list of deliverables expected and consists of a group by group breakdown of the critical experiments to be performed, and a discussion of how that data fits into the overall program. In Section 4 the four coals selected for this program are reported. In Section 5 preliminary XAFs analysis by UKy personnel is discussed. Section 6 consists of a discussion of trace element analysis (INAA) of two size fractions of the Elkhorn-Hazard coal. A discussion of the modifications to the U.Arizona self-sustained combustor is presented in Section 7. Modifications included addition of a baghouse and improvements in the on-line safety and analytical systems. In Section 8 a detailed QA/QC protocol is presented.

• Research Organization: PSI Technology Co., Andover, MA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-95PC95101
• OSTI ID: 257357
• Report Number(s): DOE/PC/95101--T2; ON: DE96012295
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BITUMINOUS COAL
CHARS
CHEMICAL ANALYSIS
CHEMICAL REACTION YIELD
COMBUSTION KINETICS
COMBUSTORS
DISTRIBUTION
EVAPORATION
EXHAUST GASES
FLY ASH
FUEL-AIR RATIO
MATHEMATICAL MODELS
NEUTRON ACTIVATION ANALYSIS
POLLUTION CONTROL EQUIPMENT
PROGRESS REPORT
PULVERIZED FUELS
QUALITY ASSURANCE
SUBBITUMINOUS COAL
TOXIC MATERIALS