Advanced Exhaust Filtration for a Cleaner Tomorrow

Pruiting Environmental Protection Technology Co., Ltd (PRT) is a leading innovator in emission control solutions since 2005. Specializing in high-performance exhaust filters, substrates, and catalysts for gasoline, diesel, and industrial systems.

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18+ Years

Industry Experience

Global Reach

Serving 50+ Countries

R&D Focused

Innovation-Driven Solutions

About PRT

Pruiting Environmental Protection Technology Co., Ltd (PRT) is an advanced technology company focused on emission control and exhaust filter product development since August 2005. Based in Chongqing, China, PRT has evolved into a leading supplier of emission control products, delivering high-quality solutions to clients worldwide.

With a mission to reduce environmental pollution from engine systems, PRT combines cutting-edge research, precision manufacturing, and knight-level service to meet global emission standards.

Founded in 2005 in Chongqing, China
Specializing in exhaust filtration & catalytic systems
ISO-certified manufacturing & R&D center
Global distribution with premium service support

Our Products

Comprehensive range of high-efficiency exhaust filtration and catalytic systems for automotive, industrial, and generator applications.

Honeycomb Ceramic Substrate

High-porosity cordierite structure for gasoline and diesel engines. Excellent thermal stability and low thermal expansion.

Material: Cordierite
Cell Density: 200–600 cpsi
Wall Thickness: 6–12 mil
Applications: Gasoline & light-duty diesel

SiC DPF Substrate

Silicon carbide diesel particulate filter with superior thermal conductivity and regeneration performance.

Material: Silicon Carbide (SiC)
Efficiency: >95% PM capture
Max Temp: 1400°C
Applications: Heavy-duty diesel engines

Cordierite DPF Substrate

Cost-effective DPF solution with high filtration efficiency and excellent thermal shock resistance.

Material: Cordierite
Porosity: 45–55%
Thermal Expansion: <1.5 x 10⁻⁶/K
Applications: Medium-duty diesel systems

Diesel Oxidation Catalyst (DOC)

Converts CO and HC into CO₂ and H₂O. Also aids in DPF regeneration by increasing exhaust temperature.

Catalyst: Pt/Pd/Rh
Conversion Efficiency: >90%
Operating Temp: 200–600°C
Applications: Diesel engines, generators

Industrial SCR Catalyst

Selective Catalytic Reduction system for NOx reduction in industrial boilers, turbines, and large engines.

Active Material: V₂O₅-WO₃/TiO₂
NOx Reduction: >90%
Ammonia Slip: <5 ppm
Applications: Power plants, marine, industrial

Metallic Substrate

Ferritic stainless steel substrate with high mechanical strength and rapid light-off performance.

Material: FeCrAlY alloy
Cell Density: 400–900 cpsi
Thermal Conductivity: High
Applications: High-vibration environments

Universal Catalytic Converter

Ready-to-install emission solution for retrofitting older vehicles and custom exhaust systems.

Type: Three-way catalyst (TWC)
Dimensions: Customizable
Efficiency: >90% HC, CO, NOx reduction
Applications: Aftermarket, restoration

Ceramic Heat Accumulation Substrate

Designed for thermal energy storage in regenerative thermal oxidizers and industrial heat recovery systems.

Material: High-alumina ceramic
Thermal Capacity: High
Thermal Shock Resistance: Excellent
Applications: RTO, industrial furnaces

Why Choose PRT?

Engineered for performance, durability, and compliance with global emission standards.

Certified Quality

ISO-compliant manufacturing with rigorous testing for every product batch.

High Efficiency

Up to 99% particulate matter and NOx reduction with optimized substrate design.

Global Support

Dedicated service teams and logistics partners across Asia, Europe, and the Americas.

R&D Driven

Continuous innovation in materials, coatings, and system integration for next-gen emissions.

Frequently Asked Questions

What is a DPF and how does it work?

A Diesel Particulate Filter (DPF) captures soot and particulate matter from diesel exhaust. It uses a honeycomb structure to trap particles, which are later burned off during regeneration cycles.

Can PRT products be customized?

Yes, PRT offers OEM/ODM services with custom dimensions, cell density, coatings, and mounting configurations to meet specific application requirements.

What emission standards do your products meet?

Our products are designed to meet Euro 4/5/6, EPA 10, and China 6 emission standards, depending on configuration and application.

How do I select the right substrate material?

Cordierite is cost-effective for light-duty use. SiC offers superior thermal performance for heavy-duty. Metallic substrates are ideal for high-vibration environments.

Do you provide technical support?

Yes, PRT offers full technical support including installation guidance, system integration, and troubleshooting assistance.

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