Macromolecular structural changes in bituminous coals during extraction and solubilizatio. Final technical report, September 1, 1980-August 31, 1983

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5842999

Peppas, N A; Lucht, L M; Hill-Livense, M E; Hooker, D R

The macromolecular structure of coals was investigated via equilibrium and dynamic solvent swelling experiments. The values of the effective molecular weight between crosslinks and number of repeating units between crosslinks, the amount of crosslinking due to hydrogen bonding, and the effect on the network structure of temperature changes, oxidation, extraction with pyridine and removal of hydrogen bonds via methylation of hydroxyl and carboxylic groups were determined. This report consists of the following three parts: (1) macromolecular network structure of coal-interpretation of equilibrium and dynamic swelling experiments; (2) analysis of fractions obtained from coal solubilization; and (3) analysis of molecular weight distribution of coal extracts and coal derived liquids. Numerous figures, tables and references are provided for each part.

• Research Organization: Purdue Univ., Lafayette, IN (USA). School of Chemical Engineering
• DOE Contract Number: FG22-80PC30222
• OSTI ID: 5842999
• Report Number(s): DOE/PC/30222-T3; ON: DE83017760
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
AZINES
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL BONDS
CHEMICAL REACTIONS
COAL
COAL EXTRACTS
COAL LIQUIDS
CROSS-LINKING
DATA
DISSOLUTION
ENERGY SOURCES
EXPERIMENTAL DATA
EXTRACTION
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
INFORMATION
LIQUIDS
MASS SPECTROSCOPY
MATERIALS
MOLECULAR STRUCTURE
MOLECULAR WEIGHT
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERIZATION
PYRIDINE
PYRIDINES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SWELLING