GAS PURIFYING PREPARATIONS

Brand Owner Address Description
ELAVERO PERSTORP AB PERSTORP INDUSTRIPARK PERSTORP SE-28180 Sweden gas purifying preparations, for industrial use; gas purifying preparations, namely, chemicals for use in purifying gas; gas purifying preparations, namely, chemical additives for fuel; chemical gas purifying preparations;chimney flues;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. An exhaust gas purifying apparatus for an internal combustion engine having an exhaust system. The exhaust gas purifying apparatus includes a NOx purifying device provided in the exhaust system for purifying NOx in exhaust gases, and a temperature sensor for detecting a temperature of the NOx purifying device. The NOx purifying device has NOx adsorbing capacity and generates ammonia and retains the generated ammonia when the air-fuel ratio is set to a value on the rich side with respect to the stoichiometric ratio. The NOx purifying device purifies NOx with the retained ammonia when the air-fuel ratio is set to a value on a lean side with respect to the stoichiometric ratio. The air-fuel ratio is enriched to a value on the rich side with respect to the stoichiometric ratio so as to increase an amount of reducing components in the exhaust gases flowing into the NOx purifying device.