Instrumental methods of analysis of sulfur compounds in synfuel process streams. Quarterly technical progress report, October-December 1982
The general objective is to develop dependable and accurate instrumental analysis methods for the determination of sulfur moieties. These will include polysulfides, dithionite and polythionates. Calorimetric procedures (thermometric titrations, injection enthalpimetry) and electroanalytical techniques (voltammetry, coulometric analysis, etc.) will be used. The complete speciation of sulfur will be undertaken in representative synfuel process stream samples. Total sulfidic sulfur has been quantitated with the aid of diffusion currents engendered by the anodic depolarization of the dropping mercury electrode. Classical chemical reactions involving polythionates were surveyed as to their applicability to analytical determinations by Direct Injection Enthalpimetry (DIE). Reactions included polythionate decomposition by sulfide precipitation with mercuric chloride, silver nitrate, and thallows nitrate; polythionate oxidation, cyanolysis, and complexation with aquopentaammine cobalt (+3) chloride. An analysis of two H-Coal sour water samples was undertaken using thermochemical, electrochemical and classical methods. The various methods yielded consistent sulfidic and polysulfidic sulfur levels. This internal consistency substantiated the accuracy of the findings.
- Research Organization:
- Pennsylvania State Univ., University Park (USA). Dept. of Chemistry
- DOE Contract Number:
- FG22-81PC40783
- OSTI ID:
- 6417036
- Report Number(s):
- DOE/PC/40783-T9; ON: DE83009819
- Country of Publication:
- United States
- Language:
- English
Similar Records
Instrumental methods of analysis of sulfur compounds in synfuel process streams. Quarterly technical progress report, January-March 1984
Instrumental methods of analysis of sulfur compounds in synfuel process streams. Final technical report, September 30, 1981-September 29, 1984
Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COAL LIQUEFACTION
COBALT CHLORIDES
COBALT COMPOUNDS
DISPERSIONS
H-COAL PROCESS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
LIQUEFACTION
LIQUID WASTES
MEASURING INSTRUMENTS
MEASURING METHODS
MERCURY CHLORIDES
MERCURY COMPOUNDS
MERCURY HALIDES
MIXTURES
NITRATES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PROCESS SOLUTIONS
QUANTITATIVE CHEMICAL ANALYSIS
SILVER COMPOUNDS
SILVER NITRATES
SOLUTIONS
SULFIDES
SULFUR COMPOUNDS
THALLIUM COMPOUNDS
THALLIUM NITRATES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTE WATER
WASTES
WATER