Materials technology for coal-conversion processes. Fifteenth quarterly report, July--September 1978

Technical Report · Sun Jan 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6318325· OSTI ID:6318325

Ellingson, W A

In the evaluation of ceramic refractories for slagging gasifiers the fused-cast chrome-spinel refractory (number 22) exhibited excellent corrosion resistance at approx. 1550/sup 0/C, even without water cooling. The fused-cast chrome-alumina (number 38) also performed well, whereas the silicon carbide and alumina-silica refractories exhibited substantial corrosion. Field work on ultrasonic erosion-detection systems has continued with data acquisition during a plant run at Bi-Gas. Uniaxial tensile data were generated for Incoloy 800, Type 310 stainless steel, Inconel 671, and U.S. Steel Alloy 18-18-2 after a 3.6-Ms exposure to multicomponent gas mixtures that simulate a coal-gasification environment. The effects of NaCl and CaCl/sub 2/ additions on the corrosion behavior of materials in a fluidized-bed environment have been evaluated. The corrosive attack consisted primarily of oxidation with some degree of sulfidation at temperatures between 723 and 1123 K. Iron-base alloys, e.g., Types 304, 316 and 310 stainless steel, exhibited greater corrosion resistance than materials with high nickel content, e.g. RA333 and Inconel 600 and 601. The addition of slag to the fluidized bed increased the corrosive attack on all materials. Block valves from the Liquid Phase Methanation (LPM) plant at HYGAS and the microstructure of piping from the HYGAS pilot plant were examined to determine whether a fire that had occurred at the LPM plant had adversely affected the structural components of the plant.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6318325
• Report Number(s): ANL-79-2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360200 -- Ceramics
Cermets
& Refractories
ADDITIVES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COAL
COAL GASIFICATION PLANTS
COMBUSTION
COMPARATIVE EVALUATIONS
CONTROL EQUIPMENT
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
ENERGY SOURCES
EQUIPMENT
FAILURE MODE ANALYSIS
FLOW REGULATORS
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCOLOY 800
INCOLOY ALLOYS
INCONEL 671
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONDESTRUCTIVE TESTING
OXIDATION
REFRACTORIES
SODIUM CHLORIDES
SODIUM COMPOUNDS
STAINLESS STEEL-310
STAINLESS STEELS
STEELS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
THERMOCHEMICAL PROCESSES
VALVES