초록 ▼

This invention pertains to an improved high temperature slag resistant thermocouple sheath for protecting thermocouples used to measure the temperature of synthesis gas, reducing gas, or fuel gas produced by the partial oxidation of ash-containing liquid hydrocarbonaceous and/or solid carbonaceous f

This invention pertains to an improved high temperature slag resistant thermocouple sheath for protecting thermocouples used to measure the temperature of synthesis gas, reducing gas, or fuel gas produced by the partial oxidation of ash-containing liquid hydrocarbonaceous and/or solid carbonaceous fuels. The protection thermocouple sheath is made from a continuous binary alloy consisting of about 30 to 70 wt. % of palladium and the remainder silver. It may be used over a temperature range of about 1000°F. to 2400°F.

대표청구항 ▼

In an apparatus comprising a thermocouple for measuring the temperature in a system for the partial oxidation of liquid hydrocarbonaceous and/or solid carbonaceous fuel with a free-oxygen containing gas in the presence of a temperature moderator in the reaction zone of a gasifier to produce an efflu

In an apparatus comprising a thermocouple for measuring the temperature in a system for the partial oxidation of liquid hydrocarbonaceous and/or solid carbonaceous fuel with a free-oxygen containing gas in the presence of a temperature moderator in the reaction zone of a gasifier to produce an effluent gas stream comprising H2, CO, CO2, and at least one member from the group consisting of H2O, N2, H2S, COS, Ar, and CH4, along with slag containing Fe and other free metals; the improvement comprising a metal sheath for enclosing said thermocouple thereby protecting said thermocouple from exposure to iron and other damaging elements in said slag; and wherein said protective sheath is made from a continuous binary alloy consisting of about 30 to 70 wt. % of palladium and the remainder silver.