Conductive honey comb ceramic catalyst carrier and its preparation method

Abstract

An electrically conductive cellular ceramic as the carrier of catalyst used for car is prepared from purified titanium oxide or Ti powder, graphite powder and pure Al powder through proportionally mixing, adding organic adhesive, stirring, die pressing, heat treating, igniting and self burning for high temp synthesis.

Description

[0001] The present invention is a divisional application titled "Conductive Honeycomb Ceramic Catalyst Carrier and Its Preparation Method" (application number: 02113513.4, filing date: March 25, 2002). technical field [0002] The invention relates to a catalyst carrier for a vehicle, more specifically, the invention relates to a ceramic carrier material used in a catalytic converter for exhaust gas of an automobile. At the same time, the present invention also relates to a preparation method of the catalyst carrier. Background technique [0003] The development of modern society has led to a substantial increase in the number of automobiles, and the pollution generated by exhaust emissions has also increased significantly. Developed areas where cars are concentrated, especially big cities. Pollution from tail gas emissions has accounted for 50% to 60% of air pollution in these areas. With people's emphasis on the living ...

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Problems solved by technology

However, it also has many disadvantages, such as large heat capacity, and it takes a long time to start, at least 3 to 10 minutes, to make the catalyst work effectively

However, studies have shown that 3 to 10 minutes after start-up is the time when car pollution is the most serious. The delayed activation of the catalyst prevents the exhaust gas from being cleaned in time after start-up, and the problem of environmental pollution has not been completely resolved.

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