Applications of molecular modeling in coal research

Conference · Sat Jan 01 00:00:00 EST 1994

OSTI ID:10117082

Carlson, G A; Faulon, J L

Over the past several years, molecular modeling has been applied to study various characteristics of coal molecular structures. Powerful workstations coupled with molecular force-field-based software packages have been used to study coal and coal-related molecules. Early work involved determination of the minimum-energy three-dimensional conformations of various published coal structures (Given, Wiser, Solomon and Shinn), and the dominant role of van der Waals and hydrogen bonding forces in defining the energy-minimized structures. These studies have been extended to explore various physical properties of coal structures, including density, microporosity, surface area, and fractal dimension. Other studies have related structural characteristics to cross-link density and have explored small molecule interactions with coal. Finally, recent studies using a structural elucidation (molecular builder) technique have constructed statistically diverse coal structures based on quantitative and qualitative data on coal and its decomposition products. This technique is also being applied to study coalification processes based on postulated coalification chemistry.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 10117082
• Report Number(s): SAND-93-2626C; CONF-940301-7; ON: DE94005574; TRN: 94:001969
• Resource Relation: Conference: 207. spring national meeting of the American Chemical Society (ACS),San Diego, CA (United States),13-18 Mar 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COAL
MOLECULAR STRUCTURE
COMPUTERIZED SIMULATION
COALIFICATION
MOLECULAR MODELS
CHEMICAL BONDS
COMPUTER-AIDED DESIGN
010600
360602
990200
PROPERTIES AND COMPOSITION
STRUCTURE AND PHASE STUDIES
MATHEMATICS AND COMPUTERS