Research and development of an advanced process for the conversion of coal to synthetic gasoline and other distillate fuels. Quarterly technical progress report No. 14, April-June 1981
Summary of progress to date are as follows: (1) An improved procedure for analyzing extract products and distillate fractions of SRC-II liquids has been developed. It provides data on amine and neutral oil content, as well as phenols concentration. (2) Analyses showed that SRC-II liquids are rich sources of phenol, cresols, and xylenols. Over 95% of the phenols are contained in an SRC-II fraction which has a boilding range of 255/sup 0/F to 550/sup 0/F. (3) The large batch of raffinate, prepared by methanol extraction of SRC-II middle distillate for the continuous hydrotreating studies, contained about 14 wt % phenols. Thus, the extraction removed about 58 wt % of the available phenols. (4) Bench scale studies compared the hydrotreatment of the as-received SRC-II middle distillate and the raffinate from methanol extraction. These indicate an advantage for the latter, in terms of hydrogen consumption and reaction conditions to achieve comparable product quality level. (5) The reaction rate data from hydrotreating the two feedstocks were reevaluated assuming a first order reaction mechanism. Within the precision of the data, rate constants for both nigrogen removal and oxygen removal were comparable for the two feedstocks. (6) Additional analyses of the liquid products from the hydrotreating of the two feedstocks indicate most of the characteristics are consistent with changes in the degree of saturation of the aromatics structure. The distribution of naphthenes in the product reflects the fact that the extraction removed principally single ring phenolics from the middle distillate. (7) Preliminary engineering design bases were started, in anticipation of the engineering and economic analysis of the effect of extraction prior to hydrotreating, for the SRC-II middle distillate. 16 figs., 9 tabs.
- Research Organization:
- Suntech, Inc., Marcus Hook, PA (USA). Applied Research and Development Dept.
- DOE Contract Number:
- AC22-76ET10592
- OSTI ID:
- 5289387
- Report Number(s):
- DOE/ET/10592-T3; FE-2306-54-Draft; ARD-2893-Draft; ON: DE85017625
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ALCOHOLS
AMINES
AROMATICS
BENCH-SCALE EXPERIMENTS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL EXTRACTS
COAL LIQUEFACTION
COAL LIQUIDS
CONSUMPTION RATES
DATA
DENITRIFICATION
DIAGRAMS
DISTILLATES
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
FLOWSHEETS
FLUIDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
HYDROGENATION
HYDROXY COMPOUNDS
INFORMATION
KINETICS
LIQUEFACTION
LIQUIDS
MASS SPECTROSCOPY
MATERIAL BALANCE
METHANOL
NONMETALS
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHENOLS
REACTION KINETICS
REMOVAL
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SPECTROSCOPY
SRC-II PROCESS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES