SCR Catalyst Certified By China Classification Society With A Nox Emission Standard Better Than Euro VI

Characteristics of SCR catalyst

architectural design

The honeycomb structure has parallel channels arranged in a regular way, large specific surface area (usually up to 300-800 m²/m³), high gas diffusion efficiency, and conducive to improving the reactivity.

Coating process

The active components (such as V₂O_₅,WO₃) are loaded on the surface of porous ceramic or metal carrier in the form of coating. The utilization rate of active substances is high, and the performance can be optimized by adjusting the thickness of coating.

Mechanical strength and corrosion resistance

The carrier is mostly cordierite (ceramic) or special alloy (metal based), which can withstand high temperature (300-450℃), wear resistance and adapt to the environment of high dust and smoke.

Anti-toxin ability

The anti-sulfur and anti-arsenic properties are improved by doping additives (such as TiO₂) to prolong the service life.

Classification of DeNox catalyst

By carrier material:

Ceramic base: cordierite is the main, low cost, high temperature resistant, suitable for fixed equipment.

Metal matrix: special stainless steel or titanium alloy, high mechanical strength, suitable for high vibration or compact space.

By active component:

Vanadium-based catalyst (V₂O₅-WO₃/TiO₂): mainstream type, excellent activity at medium temperature.

Molecular sieve catalysts (such as Fe and Cu molecular sieves): emerging direction, suitable for low temperature or specific environmental requirements.

By pore density:

Common pore ranges from 30 to 50 cpsi (pores per square inch). High pore density (e.g., 60 cpsi) increases the specific surface area but increases the pressure drop, which needs to be weighed according to flue gas characteristics.

Product technical architecture

| High open hole rate (72%) | Back pressure reduction>15% | Save 3-5% of ship fuel oil and improve engine efficiency

| Anti-clogging holes | Special coating to resist fly ash and carbon accumulation | Suitable for high-sulfur ship fuel (sulfur content 3.5%)

| Modular packaging | 304 stainless steel shell anti-corrosion design | CCS test certification

-Wide temperature window:>90% denitration efficiency is maintained within 200-550℃

-Low ammonia escape: ammonia leakage rate <5 ppm to avoid secondary pollution

-High anti-aging: life of more than 5 years (or 160,000 km on vehicle condition)

CCS Authoritative certification guarantee:

Ensure that emissions meet the world's toughest standards

✅ Type approval certificate of China Classification Society (CCS) (Certificate No.: TJ22PTB00010)

✅ Euro VI (Euro 6) emission standard (NOx ≤ 0.4 g/kWh)

Application scenarios and certification adaptability

Naval sector (core CCS certification scenario)

Marine diesel engines: low speed (MAN B&W, Wartsila), medium speed (Caterpillar)

Fuel adaptation: heavy oil (HFO), Marine diesel (MGO), LNG dual fuel

Compliance with emission standards: meet IMO Tier III (NOx<3.4 g/kWh) and ECA regional emission limits

Thermal power plant (coal/gas unit)

Cement kiln (tail/kick end flue gas treatment)

Iron and steel metallurgy (sintering machine, coking plant)

Petrochemical (catalytic cracking unit, boiler)

waste incineration power plant

typical cases

Gas distribution project: A gas cogeneration unit in an industrial park uses a ceramic-based vanadium-tungsten catalyst, with a denitrification efficiency of 95% and an annual emission reduction of about 120 tons of NOx.

Customized services and support

Provide customized number of pores, size and active components (vanadium series/iron base/copper base).

Supporting equipment: PLC control cabinet, flue gas desulfurization system, modular installation scheme.

Technical support: working condition database analysis, anti-clogging design, lifetime maintenance.

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