How to Remove Carbon Monoxide from Car Exhaust?

A company specializing in the research and production of a series of environmentally friendly catalytic materials, including ozone decomposition catalysts, carbon monoxide catalysts, Hopcalite, manganese dioxide, copper oxide, VOC catalysts, and hydrogen peroxide catalysts, is compiling this information to provide highly adaptable catalytic material solutions for various environmental treatment scenarios. We hope this will be helpful to everyone.
Our main customer base includes: industrial waste gas treatment companies, ozone purification equipment manufacturers, motor vehicles, ships, exhaust gas treatment companies, petrochemical and chemical industry environmental protection supporting companies, coating and printing companies, VOCs treatment companies, municipal and industrial wastewater treatment companies, metallurgical and thermal power plant flue gas treatment manufacturers, laboratories, enclosed space air purification equipment manufacturers, and environmental engineering general contracting and operation and maintenance companies.

Carbon monoxide in car exhaust is a colorless, odorless, and toxic gas, mainly originating from the incomplete combustion of fuel in the engine. When the air-fuel mixture ratio is unbalanced (low air-fuel ratio), the ignition system malfunctions, the oxygen sensor fails, or there is severe carbon buildup in the engine, the fuel cannot burn completely, resulting in the production of a large amount of carbon monoxide. Long-term emissions not only pollute the environment but also pose potential health hazards to humans.

Using a carbon monoxide catalyst for exhaust gas treatment is a mature and widely used solution. The core principle is to convert toxic carbon monoxide into non-toxic carbon dioxide through a catalytic oxidation reaction within the catalytic converter installed in the exhaust pipe. 

The feasibility of this application is demonstrated by:

High efficiency conversion: Catalysts with active components such as platinum (Pt), palladium (Pd), and rhodium (Rh) can achieve a carbon monoxide conversion rate of over 90% at operating temperatures (usually above 250℃), significantly reducing exhaust gas toxicity.
Strong integration: Modern cars are generally equipped with three-way catalytic converters, which can simultaneously treat carbon monoxide, hydrocarbons, and nitrogen oxides, working in conjunction with the electronic control system.
Economical and environmentally friendly: Effectively extends the service life of the catalyst, helping vehicles pass annual emission inspections and comply with environmental regulations.

How should catalysts be stored correctly?

To ensure the activity and durability of the catalyst, proper storage methods are crucial:
Moisture and dust protection: Store in a dry and clean environment, avoiding contact with moisture, oil, and corrosive chemicals to prevent the carrier from adsorbing impurities and reducing activity.
Suitable temperature: The recommended storage temperature is between 5℃ and 30℃, away from high-temperature heat sources and direct sunlight, to prevent the carrier from cracking due to thermal expansion and contraction.
Avoid physical impact: The catalyst carrier is mostly made of ceramic or metal honeycomb structure, so handle with care to prevent collision and breakage.
Sealed packaging: For long-term storage, maintain the original factory sealed packaging to reduce contact with air and prevent oxidation of the active components.

Using a carbon monoxide catalyst is an efficient and feasible way to treat carbon monoxide in automobile exhaust. Car owners should pay attention to regularly checking the condition of the catalytic converter, replacing aging parts in a timely manner, and combining this with good driving habits—such as avoiding prolonged idling, regularly cleaning carbon deposits, and using qualified fuel—to reduce carbon monoxide generation at the source. Choosing catalyst products that meet national environmental certification and strictly following the instructions for storage and installation will ensure a safe and environmentally friendly driving experience.

author: Hazel
date: 2026-02-04