Power
Power generation runs the widest span of duty on this list — from CFBC cyclones being sandblasted from the inside to ductwork that fails at 500 °C for reasons most people never look for.
Material systems we route here: Ceramic Fibre · Hysil
Where the lining is
CFBC boiler cyclones, returns and loop seals, combustor walls and bed, burner throats and quarls, ash hoppers and handling paths, ducting and expansion joints, and the insulation package across the whole plant. Much of the refractory tonnage in a power station is insulation rather than hot face.
What takes it out
Erosion and abrasion dominate — circulating bed material, dust-laden gas and falling ash remove material mechanically, and the wear maps exactly onto the flow path: rounded arrises, polished tracks, and a surface that is smooth and clean rather than chemically altered. The one to watch for separately is CO disintegration, a low-temperature mechanism: in a reducing, CO-rich atmosphere, carbon deposits inside the refractory catalysed by metallic iron and cracks the brick apart from within, fastest between roughly 400 and 600 °C. It shows up in ducts, offtakes and recuperators — the cool parts — and it accumulates during slow heat-ups and long idles rather than at load.
How we specify against it
For erosion: harder aggregate, higher cold crushing strength, low-cement castables rather than conventional ones — and fix the flow, because if a lining erodes at one elbow the elbow is the problem and no grade change will outlast it. For CO duty: low-iron grades specifically certified for it, and an operating practice that does not dwell in the 400–600 °C band under reducing conditions. For the insulation package: calcium silicate and fibre selected against the real cold-face target, not a nominal one.
8 product lines across 2 categories