Ceramic Catalyst For Nox Oxidation

Ceramic doc technology with zeolites designed to extend the performance of diesel catalytic converters into the low temperature range.

Ceramic catalyst for nox oxidation.

D series doc is ideal for off road application construction mining material handling utility on road power generation marine gantry cranes and locomotive industries. Stoichiometric amounts of lanthanum iron manganese or cobalt nitrate were dissolved in a solution of de ionised water 5 ml and ethanol 15 ml. Our honeycomb construction offers higher mechanical strength for catalyst durability in addition to an efficient geometry for high surface area and low pressure drop. Doc s channels are unimpeded the exhaust gas can flow it smoothly then hc co pm are oxidized rapidly under the catalyst precious metal noxious emission are reduced effectively and reach emission standard.

Selective catalytic reduction is a means of converting nitrogen oxides also referred to as no x with the aid of a catalyst into diatomic nitrogen and water. Ceramic catalytic compositions systems and methods for oxidizing converting and or removing no x gas species present in gas streams such as exhaust gases are provided. Two perovskite oxide catalysts lafe 0 7 mn 0 225 pd 0 075 o 3 lfmpo and lafe 0 7 co 0 225 pd 0 075 o 3 lfcpo were synthesised by a sol gel method via citrate complexation fig. As the reaction drives toward completion carbon dioxide co 2 is produced.

Our cordierite ceramic doc are made of cordierite material which is raw material molding and synthesized cordierite after burning. Depending on the constituents in the exhaust stream two types of catalyst can be used scr or nscr. Selective catalytic oxidation scr uses ammonia or urea as a reductant in conjunction with a specialized scr catalyst typically v ti w based. Cormetech s scr catalyst formulation and cell pitch are customized for each flue gas application ensuring high nox reduction efficiency and high mercury oxidation rate at very low pressure loss.

Selective catalytic reduction of no x using ammonia as the reducing agent was patented in the united states by t. The catalysts of the ceramic catalyst for nox oxidation and nox conversion in emission control systems ceramatec inc. A reductant typically anhydrous ammonia aqueous ammonia or urea solution is added to a stream of flue or exhaust gas and is absorbed onto a catalyst. Doc technology controls emissions of hydrocarbons hc carbon monoxide co and particulate matter pm from diesel vehicles.

The catalysts of the invention oxidize the nitrogen monoxide no in gas streams to nitrogen dioxide no2 which may be adsorbed by a metal oxide or other no2 adsorber.