Coal liquefaction process streams characterization and evaluation: An analytical characterization case study
Deactivation of the second-stage supported catalyst dominated most of the properties over the course of the run. Consequences of increased catalyst age were increases in aromaticity and phenolic -OH concentration and decreases in hydrogen donor content and paraffinic hydrogen content in most process streams, including product distillates. Donor solvent quality of the whole PFL increased through the early part of the run until Period 8 when it apparently stabilized. The properties of the net product oil and its distillate fractions, as determined by NIPER, show that the coal-derived material has some desirable qualities. The whole crude has a low sulfur content and boils below the maximum temperature allowed for the production of transportation fuels. The naphtha fraction (IBP-380{degrees}F) is highly naphthenic and has a low benzene content. The naphtha fraction appears to be amenable to mild hydrotreating to produce a good gasoline blendstock. The kerosene (380--510{degrees}F) fraction is much too cyclic for use as aviation fuel and it is recommended that this fraction be distributed into the two cuts on either end of it (diesel and gasoline feedstocks). The 510--680{degrees}F fraction met most specifications as a heating fuel and diesel fuel. It appears that this material, after moderate hydroprocessing, could make a good diesel blendstock. Both the FIMS and CP/MAS {sup 13}C-NMR methods, currently being used to analyze the suite of twelve samples from HRI Run CC-15, are expected to provide chemical/molecular information to augment and extend the information provided by the base analyses. Preliminary information is encouraging.
- Research Organization:
- CONSOL, Inc., Library, PA (United States). Research and Development Dept.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-89PC89883
- OSTI ID:
- 10155155
- Report Number(s):
- CONF-9309257-4; ON: DE94012723; BR: AA2515000/AA2515150
- Resource Relation:
- Conference: Coal liquefaction and gas conversion contractor`s review conference,Pittsburgh, PA (United States),27-29 Sep 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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