Research and development of an advanced process for the conversion of coal to synthetic gasoline and other distillate fuels. Draft quarterly technical progress report No. 13, January-March 1981. [Raffinate product]

Technical Report · Tue Sep 01 04:00:00 EDT 1981

OSTI ID:5341615

Talbot, A F; Hollstein, E H; Phillips, G S; Scheibel, E G

Suntech, Inc. conducted continuous hydrotreatment studies to compare the refining of middle distillate product from the SRC-II coal liquefaction process by two alternative processing routes. These routes consist of: Case 1. Hydrotreating of the whole, unextracted SRC-II middle distillate product; Case 2. Aqueous methanol extraction of a portion of the phenolics from the SRC-II middle distillate, followed by hydrotreating of the raffinate product from the extraction. These studies indicate a significant decrease in hydrogen consumption and a very slight increase in the rate of nitrogen removal, for processing via Case 2 as compared to processing via Case 1. Economic comparison of the two processing cases is inappropriate until the value of the extract produced in Case 2 is established. Parametric studies were performed for both feedstocks over ranges of temperature, pressure, and liquid hourly space velocity. The effect of these variables on nitrogen content of the liquid product and hydrogen consumption has been determined. Material balance calculations indicate that about 19 wt. % had been extracted from the SRC-II middle distillate to supply raffinate used in the above Case 2 studies. About half of the phenolics were left in the raffinate. If total removal of phenolics were desired, the extraction conditions could be modified. A hexane or heptane stripping step might also be desirable to reduce neutral oils in the extract product. 16 figs., 4 tabs.

• Research Organization: Suntech, Inc., Marcus Hook, PA (USA)
• DOE Contract Number: AC22-76ET10592
• OSTI ID: 5341615
• Report Number(s): DOE/ET/10592-T4; FE-2306-51-Draft; ARD-2892-Draft; ON: DE85017624
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALCOHOLS
AROMATICS
CHEMICAL REACTIONS
COAL EXTRACTS
COAL LIQUEFACTION
COAL LIQUIDS
CONSUMPTION RATES
DATA
DENITRIFICATION
DISTILLATES
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
FLUIDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
HYDROGENATION
HYDROXY COMPOUNDS
INFORMATION
LIQUEFACTION
LIQUIDS
MATERIAL BALANCE
METHANOL
NITROGEN
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PARAMETRIC ANALYSIS
PHENOLS
PRESSURE EFFECTS
PROCESSING
REFINING
REMOVAL
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SRC-II PROCESS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES