Fundamental reaction pathways during coprocessing. Fourteenth quarterly technical progress report and milestone status report

Technical Report · Tue Mar 31 04:00:00 EST 1992

OSTI ID:10152187

Stock, L M; Gatsis, J

Coal petroleum resid coprocessing is fast becoming a cost effective means of coal liquefaction. The reaction mechanisms, however, are not well understood and are very important to the development and improvement of the technology. We have been carrying out an investigation that is studying the role of dihydrogen in the coprocessing reaction. Initial research on this project focused on coprocessing reactions that were carried out with Illinois No. 6 coal or Wyodak coal and Lloydminster resid or Hondo resid under severe conditions. Quantitative {sup 1}H and {sup 2}H NMR analyses yielded similar results for the four combinations of coals and resids in that the degree of deuteration, (D/H+D), of the coprocessed products approached 0.27. The value that was expected for complete equilibration of the isotopes among the available positions in the oil, resin, and asphaltene. These results established the ultimate unselective character of the chemical reactions in the severe coprocessing reaction.

• Research Organization: Chicago Univ., IL (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-88PC88811
• OSTI ID: 10152187
• Report Number(s): DOE/PC/88811--T14; ON: DE92015411
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405
ASPHALTENES
BITUMINOUS COAL
CHEMICAL REACTION KINETICS
COAL LIQUEFACTION
COPROCESSING
DEUTERATION
HYDROGENATION
HYDROGENATION AND LIQUEFACTION
NUCLEAR MAGNETIC RESONANCE
PETROLEUM RESIDUES
PROGRESS REPORT
SUBBITUMINOUS COAL