Materials technology for coal-conversion processes. Fourteenth quarterly report, April-June 1978

Technical Report · Sat Apr 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6344582· OSTI ID:6344582

Ellingson, W. A.

Optical and SEM examinations of alumina, alumina--chrome, magnesia--chrome, and chrome--spinel refractories exposed to acid slags in some previous test runs show that spinel reaction products form at the slag-refractory interface. Ultrasonically measured erosive-wear data on the HYGAS cyclone have been obtained after more than 3000 h of operation; the linear rate is nearly the same as that observed in past examinations. A field test program for acoustic valve-leakage-detection systems for use at the Morgantown Energy Technology Center was planned. Uniaxial tensile data were generated for Incoloy 800, Type 310 stainless steel, U.S. Steel Alloy 18-18-2, and Inconel 671 after 3.6 months exposures to multicomponent gas mixtures that simulate a coal-gasification environment. The preexposure of the materials to complex gas mixtures resulted in a decrease in ultimate tensile strength with only minimal changes in the uniform strain over the range of approx. 4 to 13%. Installation work continued on the high-temperature erosion apparatus. Failed components from the HYGAS Ash Agglomerating Gasifer (dipleg, thermowell and pressure tap) and the Synthane pilot plant (CO/sub 2/-compressor unloading fingers, eighth-floor oxygen line, steam heat up line, raw-gas scrubber, char-transfer line, oxygen line No. 1203 and oxygen line No. 1381) were examined.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6344582
• Report Number(s): ANL-78-79
• 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
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ACOUSTIC EMISSION TESTING
ACOUSTIC TESTING
ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COAL GASIFICATION PLANTS
CONTROL EQUIPMENT
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
EQUIPMENT
EROSION
EVALUATION
FAILURE MODE ANALYSIS
FLOW REGULATORS
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
REFRACTORIES
SLAGS
STAINLESS STEEL-310
STAINLESS STEELS
STEELS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TENSILE PROPERTIES
TESTING
VALVES
WEAR