Catalytic Converter

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Why is my catalytic converterso expensive

Why are these little pieces of metal so valuable and coveted in the scrap world? It all comes down to one acronym PGM’s (Platinum Group Metals). Platinum is expensive, and if you have ever bought a piece of jewelry, you would know that by now- but it is also expensive when you have platinum inside of catalytic converters. The PGM’s also include Rhodium and Palladium, and these two metals, couples with platinum, make catalytic converters have their value. These precious metals mixed help trap the fumes from internal gas engines or diesel engines, which has helped stop more emissions (harmful to the environment) from escaping into the air. But the increased value since the beginning of 2019 of the PGM group of metals has led to the catalytic converter prices really increasing over that same time. A catalytic converter uses a chamber called a catalyst to change the harmful compounds from an engine’s emissions into safe gases, like steam. It works to split up the unsafe molecules in the gases that a car produces before they get released into the air. The catalytic converter is located on the underside of a vehicle and looks like a large metal box. There are two pipes coming out of it. The convertor utilizes these two pipes and the catalyst during the process of making the gases safe to be expelled. Gases are brought in from the “input” pipe connected to the engine of a vehicle. These are blown over the catalyst, which causes a chemical reaction that breaks apart the pollutants. The less-harmful gases now travel through the second pipe, or the “output,” that is connected to a car’s tailpipe.

Catalytic Converter

Oxidation Catalyst (OC)

In the type of CCO (Catalytic Converter for Oxidation), this Oxygen will react with CO and HC to form CO2 and H2O which do not contain pollution. For this oxidation process to run well.

Three-Way Catalyst (TWC)

All the types of Catalytic Converters, this one is the most ideal. In addition to CO and HC.


Three-Way Catalyst & Oxidation Catalyst

This type of Catalytic Converter is a combination of an oxidation catalyst and a three-way catalyst that aims to reduce air pollution even more optimally.

What is a Catalytic Converter?

While pollutant gasses are comprised of harmful molecules, those molecules are composed of atoms. Because of this, the best way to break down the gasses is to split the particles after they leave the engine but before they enter the air.While this may sound like a complicated process, it’s quite simple. Catalysts are chemicals that speed chemical reactions without changing their overall process. A catalytic converters , meanwhile, is a metal implement bolted to the underside of the car. It is comprised of an input and output pipe. The input pipe pulls hot fumes from the engine, while the output pipe pushes vapors out. As the gasses from the engine blow over the catalyst, it creates a series of chemical reactions designed to alter the gasses and convert them into gasses that will not harm the environment.


Types of catalytic converters

There are various types of catalytic converter. A simple ‘two-way’ oxidation cat works to turn carbon monoxide (CO) to carbon dioxide (CO2) and hydrocarbons, which are basically particles of unburnt fuel, to carbon dioxide and water. More advanced ‘three-way’ catalytic converters are fitted to modern cars and these do the above while also reducing emissions of nitric oxide (NO) and nitrogen dioxide (NO2) which together are more commonly known as NOx, a major cause of localised air pollution. 1. Oxidation Catalyst (OC) In the type of CCO (Catalytic Converter for Oxidation), Oxygen will react with CO and HC to form CO2 and H2O which do not contain pollution. For this oxidation process to run well. 2.Three-Way Catalyst (TWC) Of all the types of Catalytic Converters, this one is the most ideal. In addition to CO and HC, NOx will also be converted into non-polluting substances. The NO and O2 processes will function as. 3. Three-Way Catalyst & Oxidation Catalyst This type of Catalytic Converter is a combination of an oxidation catalyst and a three-way catalyst that aims to reduce air pollution even more optimally.