Sulfur stripped from sulfur fumes in other units of the elemental sulfur plant is routed through the sulfur reaction unit to be converted to elemental sulfur. Without this conversion, the sulfur oxides would be expelled into the air after incineration, resulting in acid rain and various health issues. The main purpose of the reaction furnace is to burn part of the feed at temperatures up to 2500°F. The gases then pass through a series of converters and condensers that convert the gases to elemental sulfur and condense them to liquid. All process units operating at over 500°F must use refractory linings to maintain steel-shell stability.

HarbisonWalker International provides several excellent solutions for sulfur reaction unit refractory linings. These products are all available in hundreds of different shapes and at multiple production sites to effectively meet your needs.

CLIPPER^® DP, a dense super-duty fireclay brick, is ideal for sulfur reaction units operating below 2200°F. It will resist hydrogen sulfide gas and provide a very reliable brick lining.

KX-99^®-BF, a dense, high-fired super-duty fireclay brick, will resist hydrogen sulfide gas up to 2400°F.

KALA^®, a dense, 50 percent alumina fireclay brick, will resist hydrogen sulfide gas up to 2500°F.