Regenerative burners having enhanced surface area media

摘要

A high strength ceramic body for use in a regenerative burner media bed, comprising a generally cylindrical portion and a plurality of generally orthorhombic parallelepiped-shaped fin portions extending radially from the generally cylindrical portion The ceramic body has a porosity of less than 1 percent, is greater than 99 weight percent alumina, has a thermal conductivity at 100° C. of about 0.07 cal/sec cm ° C., and has a heat capacity of about 0.21 cal/gm/° C.

主权项

1. A sintered, generally cylindrical ceramic body, comprising:
a generally cylindrical portion defining a major axis; and a plurality of fin portions extending from the generally cylindrical portion; wherein the fin portions are positioned equidistantly around the cylindrical portion; wherein the fin portions extend radially outwardly from the cylindrical portion; wherein the body has an alumina content of at least about 99 weight percent distributed substantially homogeneously therethrough; wherein the body has a silica content of between about 0.1 and 0.3 weight percent distributed substantially homogeneously therethroughout; wherein the body has a titania content of between about 0.1 and 0.5 weight percent distributed substantially homogeneously therethroughout; wherein the body has a calcia content of between about 0.05 and 0.2 weight percent distributed substantially homogeneously therethroughout; wherein the body has a soda content of between about 0.1 and 0.5 weight percent distributed substantially homogeneously therethroughout; wherein the body has an iron oxide content of between about 0.05 and 0.2 weight percent distributed substantially homogeneously therethroughout; wherein the body has a porosity of less than 3 percent; wherein the body has a thermal conductivity at 100° C. of about 0.07 cal/sec cm ° C.; and wherein the body has a heat capacity of about 0.21 cal/gm/° C.