Saint-gobain Centre De Recherches Et D'etudes Europeen

Franceline Marguerite Louise Villermaux

Christian Claude His

Thibault Pierre Paul Champion

Isabelle Cabodi

Thibault Champion

Pierrick Fabien Vespa

An insulated tuckstone that includes a basic tuckstone and an insulating layer exhibiting a thermal conductivity lower than 2.0 W·m 1·K−1 between 20° C. and 500° C., exhibiting enough rigidity to be self-supporting and covering an insulated surface of the basic tuckstone. The insulated surface is included in the lower surface of the basic tuckstone, extending into the lower transition surface and representing more than 20% of the lower transition surface. The insulating layer has a chemical composition, as a percentage by mass on the basis of the oxides, such that AlO+SiO+ZrO+CaO+NaO+MgO+KO+TiO+FeO+HfO+PO+YO>80%.

Insulated tuckstone

In a refractory tile, at least two fixing points are aligned, any two adjacent fixing points of the alignment being spaced by a constant distance A, first () and last () fixing points of the alignment being separated, in the direction of the alignment, by distances &#x3b1;and &#x3b1;from first () and second () edges of the tile extending proximate the first () and second () fixing points respectively. The tile is characterized in that 0&#x3c;A&#x2212;(&#x3b1;+&#x3b1;). Application to gasifiers.

Refractory tile, in particular for a gasifier

A refractory self-flow filler mortar, includes in mass % with relation to the basic refractory material, at least 1% and at most 10% of non-granulated spherical particles with median size greater than 0.1 &#x3bc;m and less than or equal to 2 mm and further includes in mass % with relation to the total dry mass of the mortar, less than 4.5% of silica (SiO) and between 1% and 8% water, the standard deviation of the non-granulated spherical particle size being less than 100%.

Self-flow refractory mixture

A gasifier comprising an interior wall on which a layer is applied or an interior wall protected by an assembly of blocks, said layer or said blocks having at least one region of a sintered material containing:

Gasifier reactor internal coating

A gasifier internal refractory coating has at least one region of a sintered material containing at least% by weight of chromium oxide (CrO) and at least% by weight of zirconium oxide, at least% by weight of the zirconium oxide (ZrO) being stabilized in the cubic and/or quadratic form.

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Avignon, France

Franceline Marguerite Louise Villermaux