The role of the resid solvent in co-processing with finely divided catalysts. Quarterly report, January--March 1993
The overall objective of this project is to evaluate the role of the resid in coprocessing. The primary purpose of this initial work was to establish under thermal and catalytic reaction conditions whether hydrogen transfer occurred between cycloalkane type structures that are present in resids and aromatics that are present in coal and liquefied coal. The research this quarter focused upon evaluating different reaction systems for performing model donor and model acceptor studies. The first system that was evaluated involved anthracene (ANT) as the model acceptor. Previous results had shown that ANT did not convert substantially in a thermal reaction at 380{degrees}C (Wang 1992); however, more was converted (about 50%) at 440{degrees}C. The results from the reactions performed last quarter indicated that substantial hydrogenation of ANT occurred thermally at 440{degrees}C; more than had been observed previously. The reactors that were used, though, had contained substantial amounts of catalysts prior to the performance of the thermal reactions. Hence, the passivity of the reactors was questioned and new reactors were fabricated. Some of the reactions using ANT were performed again and are reported herein. The second part of the work performed this quarter was to evaluate hydrogen transfer from the cycloalkane, perhydropyrene (PHP), to the aromatic phenanthrene (PHEN). Reactions were performed at a 1:1 PHP to PHEN weight ratio and with a 5:1 PHP to PHEN ratio. The reactions were performed thermally and catalytically at 400 and 425{degrees}C using molybdenum naphthenate and nickel octoate as catalysts. Reactions were also performed with added sulfur either as elemental sulfur or benzothiophene.
- Research Organization:
- Auburn Univ., AL (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-91PC91055
- OSTI ID:
- 10169874
- Report Number(s):
- DOE/PC/91055--T3; ON: DE93018311
- Country of Publication:
- United States
- Language:
- English
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The role of the resid solvent in co-processing with finely divided catalysts. Quarterly report April--June 1993
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Related Subjects
010405
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
ANTHRACENE
CATALYSTS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
COAL LIQUEFACTION
CYCLOALKANES
EXPERIMENTAL DATA
HYDROGEN TRANSFER
HYDROGENATION
HYDROGENATION AND LIQUEFACTION
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHENANTHRENE
PROGRESS REPORT
STRUCTURAL MODELS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0400-1000 K