Honeycomb ceramic Professionalمنذ 5 أشهر - Multimedia - Saïda - 121 الآراء
Because of this, honeycomb ceramic catalysts are constantly innovating, and the market demand is also increasing. These catalysts for catalytic cracking are replaced by honeycomb ceramic catalysts. Honeycomb ceramic catalysts with large size and number of pores have emerged and have a strong development momentum.
A catalytic converter is part of a car's exhaust system. Catalytic conversion device is an exhaust purification device that converts CO, HC, and NOx in exhaust gas into gases that are harmless to human body by using the action of catalyst, also known as catalytic conversion device. The catalytic conversion device converts the three harmful gases CO, HC, and NOx in the exhaust gas into harmless gases carbon dioxide, nitrogen, Hydrogen and water. According to the purification form of catalytic converter, it can be divided into oxidation catalytic converter, reduction catalytic converter and three-way catalytic converter. The ceramic carrier is also a key component of the catalytic converter. One of its important materials is cordierite, which is resistant to high temperature, with a maximum continuous working temperature of 1200 °C, high strength and low coefficient of linear expansion. The carrier adopts an effective surface and a suitable pore structure. The opening rate of the domestic ceramic carrier can reach 400-460 mesh/inch2, and the minimum wall thickness can reach about 0.16mm. It can enhance the mechanical strength of the catalyst, as well as its ability to resist wear, impact, gravity, compression, high temperature, and phase change, improve the conductivity of the catalyst, and reduce the content of active components. Especially when using precious metal catalysts platinum, palladium and rhodium, the active components can be highly dispersed and the dosage can be reduced. In conclusion, the quality of the carrier is extremely important for the catalyst.
The urea pump is an important part of the urea solution injection metering system.