Catalytic converter for cars

Millions of cars or the road means only one thing, an excellent source for air pollution. The amount of pollution that all cars produce together can create big problems. The amount of pollution that all cars produce together can cause big problems. Government created laws that restrict the amount of pollution that cars produce to solve it. Auto makers have made many improvements to car engines and fuel systems to keep up with these laws. In 1975, an interesting device called catalytic converter was created. The device, converts harmful pollutants into less harmful emissions before they ever leave the car’s exhaust system.

The exhaust from the combustion in a car engine is comprised of six main ingredients:

  1. Nitrogen gas, Carbon dioxide and water vapor are the three of the main emissions. These gases do not cause damage to the atmosphere.
  2. Carbon Monoxide, other hydrocarbons and Nitrogen Oxides result in a majority of the pollution caused by cars.
  • Carbon monoxide is a colorless and odorless gas that can kill you if too much is inhaled
  • Hydrocarbons are produced during incomplete combustion and these hydrocarbons can be broken down by the sun, creating ground level Ozone, also known as smog.
  • Nitrogen Oxides can cause acid rains.

Catalytic convertors are designed to reduce these last three emissions.

Construction:

The core is often a ceramic/stainless steel foil honeycomb.

–          Increases the amount of surface area

–          Support the catalyst.  Also called “catalyst support”.

ceramic honeycomb catalytic converter

steel foil catalytic converter

A wash coat is used to make converters more efficient because a mixture of silica and alumina will form a rough and irregular surface which leads to more surface area. Therefore, more places for active precious metal sites. The catalyst is added to the wash coat before applied to the core.

Platinum is the most active catalyst and is widely used. Other materials such as palladium and rhodium have also been used.

catalytic converter

43 thoughts on “Catalytic converter for cars

thanks for this type of knowledge about new idea
if possible then give more information………..

A bad catalytic converter can make a car overheat by causing a backup of pressure in the cylinder head..how to overcome this problem?

Can u give more information regarding the catalytic converter

any catalytic converter has a catalyst other than platinum……because it is too costly and often they were being theft…

any other catalytic converter has a catalyst other than platinum……because it is too cost& theft problem…

gud topic…but plz say another catalyst which are useful in catalytic converter beccoz platinumis costly na

gud topic…but plz say another catalyst which are useful in catalytic converter becoz platinum is costly na

Sir its good
do u have any idea about water as a supplement fuel for the car
or an automobile work’s with nonresourceable energy it mean producing its own energy to run the vechile.
i have some idea about this sir

Thank u to give such a different type of information through by ur site.I hope u to add more intersting details about this catalystic converter. by kuriakose from dubai

I have a project for final year of mechanical engineering students.
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Its a special Fixture which when attached on a lathe m/c can be used to cut profiles of gear.
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Hi Aprit!
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Hello aprit 4fm Pune!
I said you about the description,it includes the main parts and its drawing also.
thanx….regards

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I am a student of final year and have to choose a reasonable project now.
I am interested in your project, its fantastic.I have to ask that can it be the final year project? And can u provide me some description on the construction and assembly of this attachment.
I shall be very thankful to you.

sir, thank u 4 this info……….
CAN U PROVIDE ME SOME DISCRIPTION ON THE CONSTRUCTION & ASSEMBLY OF THIS
PROJECT.

i m a final year student. plz help me for a research project.an send me some ppt and description.

I am a student of final year and have to choose a reasonable project now.
I am interested in your project, its fantastic.I have to ask that can it be the final year project? And can u provide me some description on the construction and assembly of this attachment.
I shall be very thankful to you.

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