Research and development of an advanced process for the conversion of coal to synthetic gasoline and other distillate fuels. Quarterly technical progress report No. 12, for the period October 1980-December 1980. Draft. [Dimethylformamide-heptane; methanol]
We conclude from our present work that: continuous liquid extraction of SRC-II middle distillate with aqueous methanol is well-understood and can be practiced to produce raffinate and extract products of predictable nitrogen and oxygen content; compared to extraction with dimethylformamide (DMF)-heptane, extraction of SRC-II middle distillate with aqueous methanol removes only about one-half as much oxygen- and nitrogen-containing material at an equivalent degree of extraction; extraction of about 25 wt % of SRC-II middle distillate produces double the hydrodenitrogenation rate constant of the raffinate product. DMF-heptane extraction is much more effective; hydrotreatment of the unextracted SRC-II middle distillate at 400/sup 0/C, 2500 psig, and 0.9 LHSV can remove about all of the nitrogen, oxygen, and sulfur but hydrogen consumption is about 2600 SCFH/sub 2//BBL; in the continuous hydrorefining of SRC-II middle distillate, space velocity has the greatest effect and hydrogen pressure the least effect on nitrogen removal and hydrogen consumption. 9 figs., 8 tabs.
- Research Organization:
- Suntech, Inc., Marcus Hook, PA (USA). Research and Engineering Div.
- DOE Contract Number:
- AC22-76ET10592
- OSTI ID:
- 5341622
- Report Number(s):
- DOE/ET/10592-T2; FE-2306-48-Draft; ARD-2891-Draft; ON: DE85017623
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALCOHOLS
ALKANES
AMIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL EXTRACTS
COAL LIQUEFACTION
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DATA
DENITRIFICATION
DIAGRAMS
DISTILLATES
EXPERIMENTAL DATA
EXTRACTION
FLOWSHEETS
FLUIDS
HEPTANE
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
HYDROXY COMPOUNDS
INFORMATION
LIQUEFACTION
LIQUIDS
METHANOL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
PROCESSING
REFINING
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
SRC-II PROCESS
THERMOCHEMICAL PROCESSES