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High Stability Honeycomb Precious Metal Catalyst for VOCs

    High Stability Honeycomb Precious Metal Catalyst for VOCs

    I. Product Overview: Low-Temperature VOCs Abatement CoreVolatile Organic Compounds (VOCs) are major air pollutants causing photochemical smog, PM2.5 accumulation, and carcinogenic risks. As the core of Regenerative Catalytic Oxidation (RCO) technology, VOCs noble metal catalysts (Pt/Pd-based) enable oxidation of VOCs to CO₂ and H₂O at 200-400℃, cutting energy consumption by over 60% vs. traditional thermal oxidation (RTO, 600-800℃) with 95%-99% purification efficiency.Using cordierite honeycomb ceramic or UiO-66 MOF as supports, the catalyst integrates noble metals and cerium (Ce) promoters vi...
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I. Product Overview: Low-Temperature VOCs Abatement Core

Volatile Organic Compounds (VOCs) are major air pollutants causing photochemical smog, PM2.5 accumulation, and carcinogenic risks. As the core of Regenerative Catalytic Oxidation (RCO) technology, VOCs noble metal catalysts (Pt/Pd-based) enable oxidation of VOCs to CO₂ and H₂O at 200-400℃, cutting energy consumption by over 60% vs. traditional thermal oxidation (RTO, 600-800℃) with 95%-99% purification efficiency.
Using cordierite honeycomb ceramic or UiO-66 MOF as supports, the catalyst integrates noble metals and cerium (Ce) promoters via electronic defect engineering. Its yellow porous structure offers ≥200m²/g specific surface area, while Zr-O-Pt interface bonds create electron-deficient Ptδ⁺ sites—reducing toluene oxidation temperature by 17-20℃ and suppressing toxic by-products (e.g., benzaldehyde) by 85%.

Core Product Images

  1. Honeycomb Ceramic Type:

Overall Appearance
(10010050mm/15015050mm, 200-400cpi, RCO-compatible)

  1. Microstructure:

Microstructure
(Noble metal particles + rare earth active sites)

  1. Industrial Installation:

Application Scene
(Installed in RCO units for painting/petrochemical industries)

II. Key Technical Parameters

Technical Indicators
Specifications
Remarks
Active Components
Pt, Pd, Ce (bimetallic system)
Synergistic activity enhancement
Noble Metal Loading
0.1-0.8g/L
Customizable by gas concentration
Support Material
Cordierite/UiO-66 MOF
200-400cpi cell density
Operating Temp Range
250-500℃ (Optimal: 280-400℃)
Light-off temp: 180-220℃
GHSV
10000-20000h⁻¹
Adjustable by gas properties
Purification Rate
＞95% (Benzene series: 98%+)
Meets ≤30mg/m³ emission limits
Compressive Strength
≥10MPa
Impact-resistant
Service Life
2-4 years (normal conditions)
12-month shelf life (unopened)
Specific Surface Area
≥200m²/g (MOF type: 1000m²/g)
Enhances active site exposure

III. Core Features & Advantages

  1. Low-Temperature Energy Efficiency: T90 (90% conversion) at 250-300℃ reduces heating costs, ideal for low-concentration, high-airflow gases.

  1. Stability & Durability: Rare earth-modified coating resists peeling; supports withstand 800℃ short-term temp spikes and 10MPa pressure.

  1. Zero Secondary Pollution: High reaction selectivity produces only CO₂ and H₂O—no NOx or dioxins.

  1. Broad Adaptability: Treats benzene, alcohols, ketones, etc., across 500-10000mg/m³ concentrations, tolerating intermittent emissions.

  1. Anti-Poisoning & Easy Maintenance: Rare earth additives mitigate sulfur/chlorine poisoning; regenerable via air purge (no water washing).

  1. Competitive Lifecycle Cost: 20-30% lower total cost vs. non-noble metal catalysts (longer life + lower energy use).

IV. Application Scenarios

1. Traditional Industries

  • Petrochemical/Chemical: Refining, resin production (benzene, esters treatment)

  • Coating/Spraying: Auto, furniture manufacturing (paint solvents)

  • Printing/Pharmaceutical: Toluene, ethanol, acetone abatement

2. Emerging Fields

  • Electronics: Semiconductor production (IPA, NMP) at 150-200℃

  • New Energy: Lithium-ion battery manufacturing (DMC, EC)

  • Hydrogen Energy: Methanol reforming tail gas (formaldehyde removal)

  • Municipal: Sewage plants (odorous aldehydes, mercaptans)

V. Critical FAQs

  1. Q: What affects light-off temperature?

A: Noble metal loading (higher = lower temp), gas composition (aromatics > alcohols), and GHSV (higher GHSV = higher required temp).

  1. Q: How to prevent catalyst poisoning?

A: ① Pre-treat gas to remove dust (≤10mg/m³) and tar; ② Control sulfur/halogen impurities; ③ Replace if light-off temp rises >50℃.

  1. Q: Installation/Usage Tips?

A: Align channels with airflow; preheat to 240-350℃ before first use; maintain sufficient oxygen; purge with air 20min before shutdown.

  1. Q: How to address activity decline?

A: Mild deactivation: Reverse catalyst bed or raise temp ( Moderate: High-pressure air dust removal; Severe: Recycle/replace.

  1. Q: Noble vs. non-noble metal catalysts?

A: Noble metals offer lower light-off temp (180-220℃ vs. 350-450℃), higher efficiency (95%+ vs. 80-90%), and longer life (2-4 years vs. 1-2 years).


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