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

Technical Report · Mon Apr 15 00:00:00 EDT 1991

OSTI ID:10150956

Stock, L M

Deuterium incorporation into Lloydminster resid and asphaltene was accomplished via acid and base-catalyzed hydrogen-deuterium exchange reactions. More specifically, the acid-catalyzed exchanged reaction was carried out with trifluoromethanesulfonic acid-d (triflic acid-d). The acid-catalyzed deuteration of Lloydminster resid was measured by {sup 2}H NMR spectroscopy and the results are presented in Table 1. The base-catalyzed exchange reaction was carried out with Lochmann`s Base. As shown in Figure III and Table III, Lochmann`s Base Catalyzes the H-D exchange of a wide variety of protons, principally benzylic, substituted benzylic and highly-branched alkyl protons. Lloydminster asphaltene was successfully methylated with the use of tetrabutylammonium hydroxide as base and carbon-13-labeled methyl iodide as alkylating agent. {sup 13}C NMR spectroscopy indicate that the resid was methylated at oxygen.

• Research Organization: Chicago Univ., IL (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-88PC88811
• OSTI ID: 10150956
• Report Number(s): DOE/PC/88811--T10; ON: DE92015407
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102
400201
ASPHALTENES
BASES
CARBON 13
CATALYTIC EFFECTS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CHEMICAL AND SPECTRAL PROCEDURES
CHEMICAL REACTION KINETICS
CHROMATOGRAPHY
CONTROLLED ATMOSPHERES
DEUTERATION
DEUTERIUM
HYDROGENATION
HYDROGENATION AND LIQUEFACTION
METHYLATION
MOLECULAR WEIGHT
NUCLEAR MAGNETIC RESONANCE
ORGANIC ACIDS
PETROLEUM RESIDUES
PROGRESS REPORT