The catalytic converter is the main component of the exhaust system. It is designed to purify exhaust gases, whereby the exhaust does not cause much harm to the environment. But this item is made from expensive components this is how its high price can be explained even if the catalytic converter has failed. Converters of Japanese brands are highly valued in the secondary market. Autocatalyst Market is the biggest scrap dealer that enables users to check the prices of catalytic converters at any time. They just need to follow this link: Autocatalyst Market- Toyota catalytic scrap prices.
This company will help users to sell an out-of-service catalytic converter profitably and in the shortest possible time. There are representatives of the dealer in all regions of the country. Also, each visitor has the opportunity to become a partner of the company.
What is a catalytic converter?
A catalytic converter converts toxic substances in exhaust gases into environmentally friendly substances or substances that cause minimal hazardous impact for the environment. The following gases are the most toxic:
- carbon monoxide;
- nitrogen oxides;
- hydrocarbon.
The catalytic converter turns these trace elements into nitrogen, water vapor, and carbon dioxide. All these components can already be found in the environment in large quantities, therefore they do not pose any danger to it.
How is exhaust purified?
Exhaust gases are purified in the course of chemical reactions when they come into contact with catalytic substances used in the converter design. For this, rare earth metals of the platinum group are most often used, namely:
- rhodium;
- platinum;
- palladium.
However, certain conditions must be created within the catalytic converter for the reactions to start. Temperature is one of the main factors. Exhaust purification can be performed only when the internal catalyst unit warms up to a temperature of over 300 degrees Celsius, and then the temperature reaches 850 degrees in operating mode. This means that immediately after starting a cold engine, the catalytic converter does not work.
Catalytic converter design
The purification efficiency can be achieved because of the special design of the converter. The inner block, which the catalytic coating is applied on, is made of ceramic and has a porous structure with a large number of longitudinal channels. Actually, it looks like a honeycomb in the section.
This solution was developed to increase the contact area between the exhaust gases and the catalytic coating. Nevertheless, this design also has a disadvantage. Narrow channels become clogged with soot and smudge over time. And if there are problems in the operation of the ignition system or low-quality fuel is used, this will surely result in premature failure of the catalytic converter.
What makes the out-of-service catalytic converter valuable?
The cost of a failed converter depends on the residual amount of precious materials in it. Dealers check what precious metals are contained in the part, and what their approximate weight is.
