Are you curious about the best diesel oxidation catalysts factories in China? With the growing demand for cleaner emissions, understanding the top players in this industry is more important than ever. By comparing these factories, you can uncover which ones offer the highest quality products and innovative solutions. Knowing the best options not only helps you make informed decisions but also ensures you invest in reliable technology that meets environmental standards. So, let’s dive in and explore the leading factories that are shaping the future of diesel emissions control—your guide to smarter choices starts here!

Advances in emission control of diesel vehicles in China

Product Details: Diesel vehicle aftertreatment technologies including exhaust gas recirculation (EGR), selective catalytic reduction (SCR), diesel oxidation catalyst (DOC), and diesel particulate filter (DPF).

Technical Parameters:
– China VI emission standards for CO, HC, NO_x_, PM, PN, and NH3.
– NO_x_ and PM limits are 77% and 67% lower than China V standards.

Application Scenarios:
– Heavy-duty diesel vehicles in urban areas.
– Compliance with stringent emission regulations.

Pros:
– Reduces harmful emissions significantly.
– Improves air quality and environmental protection.

Cons:
– High cost of advanced aftertreatment technologies.
– Complex integration with engine systems.

State of the art developments in oxidation performance and deactivation …

Product Details: Diesel oxidation catalyst (DOC) for improving oxidation activity and reducing emissions in diesel engines.

Technical Parameters:
– Effect of temperature, hydrocarbons, CO, H2O, hydrogen, NO, oxygen, and NO2 on p…
– Deactivation mechanisms including hydrothermal, sulfur, chemical, and hydrocarbo…

Application Scenarios:
– Used in diesel engines for exhaust aftertreatment
– Applicable in environmental catalysis to reduce harmful emissions

Pros:
– Improves oxidation activity of diesel exhaust
– Comprehensive review of catalyst preparation methods and latest catalysts

Cons:
– Deactivation mechanisms can reduce effectiveness over time
– Further improvements needed for biodiesel impact and hydrothermal stability

Synthesis and performance of high efficient diesel oxidation catalyst …

Product Details: Metal-modified hierarchically porous zeolite BEA (H-BEA) catalyst with 0.8 wt% Pt, Fe, and Mg species.

Technical Parameters:
– T90 temperatures for CO oxidation: 95 °C
– T90 temperatures for C3H8 oxidation: 225 °C

Application Scenarios:
– Diesel oxidation catalyst (DOC) for low temperature combustion diesel engines
– Automobile exhaust after treatment systems

Pros:
– Excellent catalytic activity and sulfur-resistance
– High water resistance and long-term stability

Cons:
– Potential for sulfur poisoning leading to deactivation
– High temperature and humidity can cause loss of active surface area

Diesel Oxidation Catalyst | Umicore Automotive Catalysts

Product Details: Diesel Oxidation Catalysts (DOCs) reduce carbon monoxide (CO) and hydrocarbons (HC) in exhaust gas by oxidizing them to carbon dioxide and water.

Technical Parameters:
– 2 CO + O2 → 2 CO2
– CxHy + (x+y/4) O2 → x CO2 + (y/2) H2O

Application Scenarios:
– Used in diesel engines to reduce emissions.
– Enables faster reduction of NOx with NH3 in downstream SCR technologies.

Pros:
– Reduces harmful emissions from diesel engines.
– Improves overall air quality.

Cons:
– May require additional components for optimal performance.
– Effectiveness can vary based on engine conditions.

Control-oriented modeling of diesel oxidation catalyst

Product Details: Diesel Oxidation Catalyst (DOC) for controlling exhaust temperature in diesel engines.

Technical Parameters:
– Temperature control range: 550-600 ℃
– Model types: First-order and third-order models for control system design

Application Scenarios:
– Heavy machinery and commercial vehicles
– Aftertreatment systems for diesel engines

Pros:
– High thermal efficiency and strong power
– Effective PM and NOx reduction

Cons:
– Complexity in modeling due to nonlinear dynamics
– Potential damage to DPF from immoderate temperature rise

China Diesel Oxidation Catalyst Manufacturers Suppliers Factory – Good …

Product Details: Diesel Oxidation Catalyst (DOC) is a device installed in the diesel engine emission system that purifies exhaust gases using ceramic or metal carriers loaded with active components.

Technical Parameters:
– Conversion efficiency: 70-90% for CO, 60-80% for HC, 40-50% for SOF
– Regeneration methods: passive and active regeneration

Application Scenarios:
– Diesel vehicle exhaust treatment
– Non-road mobile machinery exhaust treatment

Pros:
– Reduces harmful emissions from diesel engines
– Enhances exhaust temperature for DPF regeneration

Cons:
– Requires specific conditions for effective operation
– Limited to diesel engine applications

Experimental Investigation on Effects of Diesel Oxidation Catalysts on …

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Technical Parameters:
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Application Scenarios:
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– Generic application scenario 2

Pros:
– Generic pro 1
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Cons:
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Activating low-temperature diesel oxidation by single-atom Pt on TiO2 …

Product Details: Pt1/TiO2 NA catalyst: a durable single-atom Pt catalyst anchored on titania nanowire array (nano-array, NA) forest integrated on full-size honeycomb substrates.

Technical Parameters:
– Pt loading: 0.53-1.73 g L⁻¹ (0.18–0.58 wt.%)
– TiO2 loading: ~23 wt.% or ~69 g L⁻¹
– BET surface area (fresh): ~89.6 m² g⁻¹
– BET surface area (after HT aging): ~16 m² g⁻¹
– T90 for CO and HCs in CDC simulated exhaust: ~160 °C
– Hydrothermal aging: 700 °C for 100 h

Application Scenarios:
– Diesel oxidation catalysts (DOCs)
– Clean diesel combustion (CDC) simulated exhaust
– Low-temperature diesel combustion (LTC-D) simulated exhaust
– Heavy-duty diesel (HDD) engine transient dynamic cycles

Pros:
– Sustained and remarkably high oxidation activity over CO and hydrocarbons at low…
– High hydrothermal stability
– Good sulfur tolerance
– Significant reduction in PGM usage compared to commercial DOCs
– Excellent durability under simulated exhaust and transient engine conditions

Cons:
– Deactivation observed after exposure to 800 °C
– Slight deactivation after exposure to high levels of SO2 (though largely recover…

Diesel Oxidation Catalyst

Product Details: Diesel oxidation catalysts (DOC) promote chemical oxidation of CO, HC, and the organic fraction of diesel particulates, while also oxidizing sulfur dioxide.

Technical Parameters:
– Oxidation of CO to CO2
– Oxidation of NO to NO2

Application Scenarios:
– Modern diesel aftertreatment systems
– Support for SCR catalysts and diesel particulate filters

Pros:
– Reduces harmful emissions such as CO and HC
– Enhances performance of downstream catalysts

Cons:
– Can increase total particulate emissions due to sulfate formation
– Higher NO2 emissions may contribute to air quality problems

Technical Bulletin: Diesel Oxidation Catalyst General Information (EPA …

Product Details: Diesel Oxidation Catalyst (DOC) is an exhaust aftertreatment device that reduces emissions from diesel fueled vehicles and equipment.

Technical Parameters:
– Reduces particulate matter (PM) by 20 to 40 percent
– Reduces hydrocarbons by 40 to 75 percent and carbon monoxide by 10 to 60 percent

Application Scenarios:
– Nonroad and highway heavy-duty diesel engines including buses, trucks, and const…
– Marine vessels and stationary generators

Pros:
– Simplicity and limited maintenance requirements
– Effective in reducing harmful emissions

Cons:
– May increase nitrogen dioxide (NO2) fraction of total NOx emissions
– Potential release of ultrafine particulates with high sulfur levels

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Comparison Table

Company	Product Details	Pros	Cons	Website
Advances in emission control of diesel vehicles in China	Diesel vehicle aftertreatment technologies including exhaust gas recirculation (EGR), selective catalytic reduction (SCR), diesel oxidation catalyst (…	– Reduces harmful emissions significantly. – Improves air quality and environmental protection.	– High cost of advanced aftertreatment technologies. – Complex integration with engine systems.	www.sciencedirect.com
State of the art developments in oxidation performance and deactivation …	Diesel oxidation catalyst (DOC) for improving oxidation activity and reducing emissions in diesel engines.	– Improves oxidation activity of diesel exhaust – Comprehensive review of catalyst preparation methods and latest catalysts	– Deactivation mechanisms can reduce effectiveness over time – Further improvements needed for biodiesel impact and hydrothermal stability	www.sciencedirect.com
Synthesis and performance of high efficient diesel oxidation catalyst …	Metal-modified hierarchically porous zeolite BEA (H-BEA) catalyst with 0.8 wt% Pt, Fe, and Mg species.	– Excellent catalytic activity and sulfur-resistance – High water resistance and long-term stability	– Potential for sulfur poisoning leading to deactivation – High temperature and humidity can cause loss of active surface area	www.sciencedirect.com
Diesel Oxidation Catalyst	Umicore Automotive Catalysts	Diesel Oxidation Catalysts (DOCs) reduce carbon monoxide (CO) and hydrocarbons (HC) in exhaust gas by oxidizing them to carbon dioxide and water.	– Reduces harmful emissions from diesel engines. – Improves overall air quality.	– May require additional components for optimal performance. – Effectiveness can vary based on engine conditions.
Control-oriented modeling of diesel oxidation catalyst	Diesel Oxidation Catalyst (DOC) for controlling exhaust temperature in diesel engines.	– High thermal efficiency and strong power – Effective PM and NOx reduction	– Complexity in modeling due to nonlinear dynamics – Potential damage to DPF from immoderate temperature rise	www.e3s-conferences.org
China Diesel Oxidation Catalyst Manufacturers Suppliers Factory – Good …	Diesel Oxidation Catalyst (DOC) is a device installed in the diesel engine emission system that purifies exhaust gases using ceramic or metal carriers…	– Reduces harmful emissions from diesel engines – Enhances exhaust temperature for DPF regeneration	– Requires specific conditions for effective operation – Limited to diesel engine applications	www.jhecopower.com
Experimental Investigation on Effects of Diesel Oxidation Catalysts on …	Generic product details placeholder	– Generic pro 1 – Generic pro 2	– Generic con 1 – Generic con 2	ascelibrary.org
Activating low-temperature diesel oxidation by single-atom Pt on TiO2 …	Pt1/TiO2 NA catalyst: a durable single-atom Pt catalyst anchored on titania nanowire array (nano-array, NA) forest integrated on full-size honeycomb s…	– Sustained and remarkably high oxidation activity over CO and hydrocarbons at low… – High hydrothermal stability – Good sulfur tolerance – Signific…	– Deactivation observed after exposure to 800 °C – Slight deactivation after exposure to high levels of SO2 (though largely recover…	www.nature.com
Diesel Oxidation Catalyst	Diesel oxidation catalysts (DOC) promote chemical oxidation of CO, HC, and the organic fraction of diesel particulates, while also oxidizing sulfur di…	– Reduces harmful emissions such as CO and HC – Enhances performance of downstream catalysts	– Can increase total particulate emissions due to sulfate formation – Higher NO2 emissions may contribute to air quality problems	dieselnet.com
Technical Bulletin: Diesel Oxidation Catalyst General Information (EPA …	Diesel Oxidation Catalyst (DOC) is an exhaust aftertreatment device that reduces emissions from diesel fueled vehicles and equipment.	– Simplicity and limited maintenance requirements – Effective in reducing harmful emissions	– May increase nitrogen dioxide (NO2) fraction of total NOx emissions – Potential release of ultrafine particulates with high sulfur levels	www.epa.gov

Frequently Asked Questions (FAQs)

What is a diesel oxidation catalyst (DOC)?

A diesel oxidation catalyst is a device used in diesel engines to reduce harmful emissions. It works by converting carbon monoxide and unburned hydrocarbons into carbon dioxide and water through a chemical reaction. This helps improve air quality and meet environmental regulations.

Why are diesel oxidation catalysts important in China?

In China, diesel vehicles contribute significantly to air pollution. DOCs play a crucial role in reducing emissions from these vehicles, helping the country combat air quality issues and comply with stricter environmental standards.

How are diesel oxidation catalysts manufactured in China?

Manufacturing DOCs in China involves several steps, including material selection, catalyst coating, and assembly. Factories use advanced technologies and quality control measures to ensure that the catalysts meet performance and durability standards.

What materials are used in diesel oxidation catalysts?

DOCs typically use precious metals like platinum, palladium, and rhodium as catalysts. These materials facilitate the chemical reactions needed to reduce emissions. The choice of materials can affect the efficiency and cost of the catalyst.

How can I ensure the quality of diesel oxidation catalysts from China?

To ensure quality, look for manufacturers with certifications like ISO 9001. Request product samples, check for compliance with international standards, and read reviews from other customers. Building a relationship with a reputable supplier can also help guarantee quality.