Transport of penetrants in the macromolecular structure of coals. 6. Amine transport mechanisms

Journal Article · · Energy Fuel; (United States)

DOI:https://doi.org/10.1021/ef00002a007· OSTI ID:6574811

Barr-Howell, B D; Howell, J M; Peppas, N A

Dynamic transport studies of n-propylamine, n-butylamine, diethylamine, and dipropylamine were performed on unextracted and pyridine-extracted coal samples. The results were analyzed by an exponential expression of the penetrant uptake as a function of time and by an in-series additive model including terms for the diffusional and relaxational mechanisms. It was shown that the amine transport mechanism is highly non-Fickian, approaching case II transport, and that it depends on carbon content and sample size. 20 references, 5 figures, 12 tables.

• Research Organization: Purdue Univ., West Lafayette, IN
• DOE Contract Number: FG22-83PC60792
• OSTI ID: 6574811
• Journal Information: Energy Fuel; (United States), Journal Name: Energy Fuel; (United States) Vol. 1:2; ISSN ENFUE
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AMINES
CARBON
CARBONACEOUS MATERIALS
COAL
COAL LIQUEFACTION
CRYSTAL STRUCTURE
DIFFUSION
ELEMENTS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
KINETICS
LIQUEFACTION
MASS TRANSFER
MATERIALS
MICROSTRUCTURE
NONMETALS
ORGANIC COMPOUNDS
PARTICLE SIZE
PERMEABILITY
POROSITY
QUANTITY RATIO
REACTION KINETICS
SEPARATION PROCESSES
SIZE
SOLVENT EXTRACTION
SOLVENT-REFINED COAL
SORPTION
SWELLING
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE