UltraTemp hot-gas filtration system

The UltraTemp hot-gas filtration system improves upon traditional ceramic filters made from high-density granular powders, which are brittle and prone to cracking and breakage due to thermal shock. UltraTemp filters are made from low-density ceramic fibers that provide very high resistance to thermal shock. This makes the filters very ductile and resistant to crack formation. The unique composition of the ceramic enables fine particulates to be captured at the fiber surface without blinding. The filters are easy to clean using standard pulse-jet techniques. Being fibrous, rather than granular, the elements are lightweight. They have high porosity with low resistance to flow, which minimizes the number of elements required for a given application. The UltraTemp Filtration system provides optimal filtration for gases between 400°F and 1,000°F, and can be applied to hot gas streams up to a maximum operating temperature of 1,650°F. It typically achieves filtration to as low as 0.001 grain/dscf (2 mg/N-m3), with particulate concentrations a fraction of this in some applications. The ceramic filters are highly resistant to chemicals and corrosion. Applications include syngas cleanup, glass production, waste incineration, and biomass pyrolysis.