Pyrite thermochemistry, ash agglomeration, and char fragmentation during pulverized coal combustion

Technical Report · Tue Oct 01 00:00:00 EDT 1991

DOI:https://doi.org/10.2172/5683888· OSTI ID:5683888

Akan-Etuk, A; Diaz, R; Niksa, S

The objective of the present work is to introduce an experimental program that will eventually lead to time-resolved iron ash composition over the technological operating domain. The preceding literature survey suggests two important stipulations on any such experimental program. The first stipulation is that good control must be established over the operating conditions, to accurately quantify their effects. The other is that data must be obtained rapidly, to thoroughly cover the important operating domain. This work presents a series of studies that has characterized the desulfurization of pyrite during the early stages of combustion. An experimental system was established and used to monitor the effects of oxygen, temperature, and residence time on the evolution of condensed phase products of the combustion of pure pyrite. (VC)

• Research Organization: Stanford Univ., CA (United States). High Temperature Gasdynamics Lab.
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-87PC79909
• OSTI ID: 5683888
• Report Number(s): DOE/PC/79909-T3; ON: DE92004845
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ASHES
AGGLOMERATION
CHARS
FRAGMENTATION
CHEMICAL REACTION KINETICS
S CODES
COAL
COMBUSTION
COMMINUTION
PYRITE
CHEMICAL REACTORS
COMPUTERIZED SIMULATION
PROGRESS REPORT
X-RAY DIFFRACTION
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COHERENT SCATTERING
COMBUSTION PRODUCTS
COMPUTER CODES
DIFFRACTION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
KINETICS
MATERIALS
MINERALS
OXIDATION
PYROLYSIS PRODUCTS
REACTION KINETICS
RESIDUES
SCATTERING
SIMULATION
SULFIDE MINERALS
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion