Distillation tower corrosion: synergistic effects of chlorine and phenolic compounds in coal liquids. Final report
Severe corrosion problems were encountered in the fractionator area of major solvent refined coal (SRC) pilot plants. Chemical characterization and corrosion experiments using liquids from the T-105 fractionating tower of the Wilsonville, Alabama SRC plant are described. Tower feed liquids were obtained when the plant was processing low and high chlorine content coals without additives. Liquids from individual trays were obtained when the plant feed included additions of sodium carbonate. Given the plant feed and operational conditions presented, it was demonstrated that the synergistic effect of the ammonium chloride and phenol combination, due in part to ammonium chloride solubility, was likely responsible for the Wilsonville tower corrosion.
- Research Organization:
- Kentucky Univ., Lexington (USA). Inst. for Mining and Minerals Research
- OSTI ID:
- 6291552
- Report Number(s):
- PB-85-106128/XAD; IMMR-48-PD23-80
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALKALI METAL COMPOUNDS
AMMONIUM CHLORIDES
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
AROMATICS
CARBON COMPOUNDS
CARBONATES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COAL LIQUIDS
CORROSION
CORROSIVE EFFECTS
DISTILLATION EQUIPMENT
EQUIPMENT
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
SODIUM CARBONATES
SODIUM COMPOUNDS