RICHER｜Generator Exhaust Aftertreatment: Full-Spectrum Technical Strength & Customized High-Efficiency Purification Solutions

With years of deep expertise in internal combustion engine exhaust aftertreatment, RICHER is backed by a CNY 120 million intelligent manufacturing base, decades of technical accumulation and a complete industrial chain. Focused on non-road applications such as generator sets, marine engines and construction machinery, we have built full capabilities covering core catalyst R&D, system integration design, manufacturing, installation and after-sales service. We deliver efficient, reliable and compliant generator exhaust purification solutions to global customers, helping meet stringent emission standards including Euro IV / Euro V /Euro VI and China National VI.

1. Corporate Strength: Dual Barriers of Technology & Production Capacity

As a core business unit of a leading Chinese exhaust aftertreatment enterprise, RICHER specializes in non-road exhaust gas treatment with three key advantages:

• R&D Capability: Mastery of proprietary catalyst formulations, CFD simulation, FEA structural analysis and electronic control programming. We independently complete the full development cycle from conceptual design to performance validation.

  

• Manufacturing Capacity: Owns a 25,000㎡ intelligent factory with modular mass production capabilities. Key components are developed and produced in-house to ensure consistent quality and reliable delivery.

• Certifications & Global Reach: Products are certified to IATF16949 and ISO9001, covering the full power range of diesel and gas generators. Exported to 30+ countries, serving industrial power plants, data centers, hospitals, biogas power stations and other sectors.

  

  

2. Core Product Portfolio: Full Power Coverage for Diverse Generator Conditions

RICHER generator aftertreatment systems adopt a modular integrated design, flexibly matching 50kW–20,000kW diesel and gas generator sets. Our portfolio includes DOC (Diesel Oxidation Catalyst), DPF (Diesel Particulate Filter), SCR (Selective Catalytic Reduction) and integrated aftertreatment systems, effectively removing PM, NOₓ, CO, VOCs and other pollutants:

• Single-Module System for Small Generators (＜500kW)

  Integrated inlet–SCR–outlet module, optional DOC/DPF. NOₓ reduction efficiency ＞98%, ammonia slip ≤ 2.5–5mg/m³. Compact design with cost advantages, ideal for small diesel/gas generators to meet Euro IV / Euro V standards.

  

• Integrated System for Medium & Large Generators (500kW–20,000kW)

  PuriSmartFS_Air™ Series for heavy oil, biogas and other harsh exhaust environments. NOₓ reduction efficiency ＞98%, PM filtration efficiency ＞97%. Low operational cost and easy maintenance, widely used in large power stations and distributed energy projects.

  

• Core Catalysts

  Self-developed catalyst series: Zeolite Cu-SCR/Fe-SCR, High-Temperature V-SCR, Low-Temperature V-SCR, covering a wide temperature range of 180°C–550°C. Cell density options: 46–200 CPSI. Excellent high-temperature stability and conversion efficiency. Fe-SCR for gas generators withstands 500°C–550°C with outstanding durability.

  

  

  

3. Core Technologies: Independent R&D for Superior Performance & Reliability

RICHER controls core technologies for generator aftertreatment, ensuring high efficiency and long-term reliability from catalyst to full system integration.

3.1 Catalyst Technology: Wide-Temperature, High-Efficiency & Durable

Tailored for fluctuating exhaust temperatures and complex operating conditions of generators, our proprietary formulations include:

• Low-temperature V-SCR: 180°C–350°C

  

• High-temperature V-SCR: 300°C–450°C

  

• Fe-SCR: above 450°C for gas generators

  

• Cu-SCR: 180°C–500°C

High activity and strong aging resistance maintain stable high conversion efficiency over extended service life.

3.2 Dosing & Injection Technology: Precise Atomization & Uniform Mixing

Dual-mode urea dosing system for low/high flow rates, controlled by Siemens PLC. Equipped with diaphragm/gear pumps for precise metering, internal mixing injectors (atomized droplet size ＜40μm), air purge cooling and self-circulation operation. Ensures uniform urea atomization, efficient mixing and prevents crystallization and clogging.

3.3 Mixer & Reactor Technology: Compact, Efficient & Reliable

Two proprietary mixing solutions:

• Labyrinth Swirl Mixer: Ammonia mixing efficiency ＞98%, 50% smaller than conventional straight-through mixers, ideal for space-constrained marine and small generator applications.

  

• Straight-Through Mixer: Simple structure for high urea flow rates, suitable for large power stations.

Modular reactor design with 4g vibration resistance, supporting online soot blowing and bypass options for easy maintenance and scalability.

4. Proven Applications: Diverse Project References Validate Our Strength

RICHER generator aftertreatment systems are successfully deployed in key projects nationwide, covering biogas power plants, data centers, hospital standby power and industrial power stations, earning high recognition for stable performance:

• Tangshan Meduoke Biogas Power Plant DeNOₓ Project

• Tencent Data Center Generator Exhaust Purification Project

• Xi’an Hospital & Power Station Generator Aftertreatment Projects

• Wuhan 2,500kW Diesel Generator DeNOₓ Project

• Shanxi Xishan Coalbed Methane Power Generation Project

5. Summary

With independent core technologies, full industrial chain manufacturing and customized application expertise, RICHER is a professional provider of generator exhaust aftertreatment solutions. From 50kW small generators to 20,000kW large power stations, and from diesel to gas applications, we deliver efficient, compliant and durable aftertreatment products and services, supporting global customers in achieving green and low-carbon development.