Instrumental methods of analysis of sulfur compounds in synfuel process streams. Final technical report, September 30, 1981-September 29, 1984

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:5946715

Jordan, J; Talbott, J; Yakupkovic, J

The general objective was to develop new instrumental methods of analysis for the determination of sulfur moieties and speciation of sulfur contaminants in representative samples of synfuel process streams. Accomplishments include novel approaches for the determination of sulfidic and polysulfidic sulfur by polarography and thermometric enthalpy titrations and of polythionates by differential pulse voltammetry. Diverse samples were analyzed including H-Coal sour water specimens, gasifier condensates, SRC effluents, DCD liquefaction samples, effluents from different stages in the Lummus liquefaction process wastewaters subjected to PETC cleanup and stripping treatments. The samples originated from a wide variety of locations ranging from Washington, Oregon and California to New York, Delaware and the Carolinas. A Manual of Recommended Voltammetric and Enthalpimetric Methods is included in the final report. A systematic and critical comparison of results obtained from the analysis of sulfur moieties in coal conversion process stream effluents has yielded illuminating corelations between the prevailing oxidation states of sulfur and pH, redox potential and oxidative stripping treatments. On the other hand, remarkable similarities were observed between liquefaction and gasification process streams: it was apparent that total sulfur contaminant levels in coal conversion process stream wastewater samples were primarily determined by the abundance of sulfur in the coal used as starting material, rather than by the nature of the conversion process (liquefaction or gasification). 8 references, 4 figures.

• Research Organization: Pennsylvania State Univ., University Park (USA). Dept. of Chemistry
• DOE Contract Number: FG22-81PC40783
• OSTI ID: 5946715
• Report Number(s): DOE/PC/40783-T17; ON: DE85008166
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
010800* -- Coal
Lignite
& Peat-- Waste Management
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
CHEMICAL ANALYSIS
COAL GASIFICATION
COAL LIQUEFACTION
CONDENSATES
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
GASIFICATION
H-COAL PROCESS
HYDROGEN COMPOUNDS
LIQUEFACTION
LIQUID WASTES
MANUALS
MIXTURES
NONMETALS
OXYGEN COMPOUNDS
PH VALUE
POLAROGRAPHY
PROCESS SOLUTIONS
QUANTITATIVE CHEMICAL ANALYSIS
RESEARCH PROGRAMS
SOLUTIONS
SULFUR
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TITRATION
VOLTAMETRY
WASTE WATER
WASTES
WATER