Coal transformation chemistry. Second quarterly progress report, June 1, 1980-August 31, 1980

Technical Report · Tue Jan 01 00:00:00 EST 1980

DOI:https://doi.org/10.2172/6740652· OSTI ID:6740652

Stock, Leon M.; Alemany, L. B.; Handy, C. I.; King, H. -H.

A review of the information concerning the structure of Illinois No. 6 coal obtained in this laboratory and elsewhere provides the basis for a proposed structure for this bituminous coal. All the available facts concerning reduction, reductive alkylation, hydrogen atom exchange, oxidation, functional group analysis and so forth have been used to define a structural segment consisting of about 1000 atoms with a molecular weight in excess of 6000. This work is discussed in Part A. The study of the reductive alkylation reaction of Illinois No. 6 coal in liquid ammonia has been directed toward the optimization of the reaction conditions for the achievement of maximum solubility. The latest results indicate that about 55% of the original Illinois No. 6 coal can be converted to products which are soluble in tetrahydrofuran using potassium in liquid ammonia as the reducing agent and n-butyl iodide in tetrahydrofuran as the reducing alkylating agent. These observations are treated in Part B. The effort on donor solvent coal chemistry was directed to the role played by pericyclic reactions in the liquefaction process. The reactivity of a number of donors has been examined including 1,2- and 1,4-dihydronaphthalene. Although the research is not yet complete, the preliminary results indicate that free radical processes occur preferentially. Thus, the pericyclic reactions appear to be unimportant at the threshold reaction temperatures of 350 to 425/sup 0/C. This work is described in Part C.

• Research Organization: Univ. of Chicago, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC22-80PC30088
• OSTI ID: 6740652
• Report Number(s): DOE/PC/30088-2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
STRUCTURAL CHEMICAL ANALYSIS
ALKYLATION
AMMONIA
CHEMISTRY
COAL LIQUEFACTION
EXPERIMENTAL DATA
HYDROGEN TRANSFER
OXIDATION
RADICALS
REDUCTION
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DATA
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
LIQUEFACTION
MATERIALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
THERMOCHEMICAL PROCESSES
010600* - Coal
Lignite
& Peat- Properties & Composition