Pyrolysis and gasification of coal at high temperatures

Technical Report · Mon Feb 10 00:00:00 EST 1992

DOI:https://doi.org/10.2172/5348405· OSTI ID:5348405

Zygourakis, K

The macropore structure of chars is a major factor in determining their reactivity during the gasification stage. The major objectives of this contract were to (a) quantify by direct measurements the effect of pyrolysis conditions of the macropore structure, and (b) establish how the macropores affected the reactivity pattern, the ignition behavior and the fragmentation of the char particles during gasification in the regime of strong diffusional limitations. Results from this project provide much needed information on the factors that affect the quality of the solid products (chars) of coal utilization processes (for example, mild gasification processes). The reactivity data will also provide essential parameters for the optimal design of coal gasification processes. (VC)

• Research Organization: Rice Univ., Houston, TX (United States). Dept. of Chemical Engineering
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-87PC79930
• OSTI ID: 5348405
• Report Number(s): DOE/PC/79930-T8; ON: DE92013241
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
PYROLYSIS
CHARS
COAL GASIFICATION
COMBUSTION
PARTICLE SIZE
POROSITY
PROGRESS REPORT
THERMAL GRAVIMETRIC ANALYSIS
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DECOMPOSITION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
GRAVIMETRIC ANALYSIS
MATERIALS
OXIDATION
PYROLYSIS PRODUCTS
QUANTITATIVE CHEMICAL ANALYSIS
SIZE
THERMAL ANALYSIS
THERMOCHEMICAL PROCESSES
010409* - Coal
Lignite
& Peat- Pyrolysis & Carbonization- (1987-)
010404 - Coal
Lignite
& Peat- Gasification