Superior Sulfur Tolerance: The La-Pr modified TiO₂-Al₂O₃ support forms Lewis acid sites that selectively adsorb sulfur compounds (H₂S, thiophene) through chemical bonding, preventing them from diffusing to noble metal active sites. Rhodium (Rh) forms Rh-S bonds with low stability, which can be oxidized and desorbed during catalyst regeneration, avoiding permanent poisoning. Even in gas streams with 100ppm H₂S, the catalyst maintains ≥95% VOC conversion efficiency for over 6 months, far exceeding the 3-6 month service life of traditional catalysts.

Dual-Function Purification: It achieves simultaneous removal of VOCs and sulfur-containing impurities without additional desulfurization equipment. Sulfur compounds are adsorbed and oxidized to harmless SO₂ (which can be further treated by downstream desulfurization units), while VOCs are converted to CO₂ and H₂O. This dual-function design simplifies the waste gas treatment process, reduces system footprint, and cuts initial investment by 30% compared to "desulfurization + catalytic oxidation" combined systems.

High Catalytic Activity & Stability: The Rh-Pt-Pd ternary active system synergistically enhances catalytic performance—Pt optimizes oxidation of oxygen-containing VOCs, Pd improves activity for aromatics and alkanes, and Rh boosts sulfur tolerance and thermal stability. The La-Pr modified support inhibits sintering of noble metal particles (maintaining particle size at 2-5nm even after 1000 hours of operation) and enhances coating adhesion, ensuring long-term structural stability with compressive strength ≥12MPa.

Wide Adaptability to Working Conditions: It tolerates sulfur concentration fluctuations (10-300ppm H₂S equivalent) and adapts to VOC concentrations ranging from 500 to 10,000mg/m³. The operating temperature range of 280-500℃ accommodates thermal fluctuations in industrial processes, while the GHSV range of 8000-18000h⁻¹ allows flexible adjustment based on gas flow and composition. It also resists poisoning from chlorine-containing impurities (≤50ppm) and high humidity (relative humidity ≤90%), making it suitable for complex industrial environments.

Easy Regeneration & Low Maintenance: When sulfur adsorption reaches saturation (indicated by a 10% drop in purification efficiency or 50℃ rise in light-off temperature), the catalyst can be regenerated by heating to 450-500℃ and purging with air containing 5-10% oxygen for 2-4 hours. This regenerative process can be repeated 3-5 times, extending the overall service life to 2-3 years. Daily maintenance only requires regular inspection of bed pressure drop and purification efficiency, with no need for water washing or chemical treatment.

Technological Innovation in Anti-Sulfur Design: The unique "three-layer structure" (sulfur barrier layer, active component layer, sulfur adsorption layer) and Rh-Pt-Pd ternary system address the root cause of sulfur poisoning. Compared to traditional catalysts that simply increase noble metal loading, this design achieves a 5x improvement in sulfur tolerance while reducing noble metal usage by 10-15%, balancing performance and cost.

Total Cost of Ownership Advantage: By eliminating the need for pre-desulfurization equipment (e.g., activated carbon adsorption towers, chemical scrubbers), it reduces initial investment by 30%+. The 2-3 year service life (6x longer than traditional catalysts in sulfur-containing environments) and regenerable design lower replacement and maintenance costs by 40% annually. Low-temperature operation (280-400℃ optimal) further reduces energy consumption by 20% compared to high-temperature anti-sulfur catalysts.

Strong Compatibility with Existing Systems: The standard honeycomb dimensions (10010050mm/15015050mm) and customizable design allow direct replacement of traditional catalysts in existing RCO/RTO units without modifying equipment structure. This enables enterprises to upgrade their waste gas treatment systems with minimal downtime and investment.

Compliance with Strict Environmental Standards: It meets international emission standards (e.g., EU REACH, US EPA) and Chinese national standards (GB 31570-2015, GB 31571-2015), with VOC emission concentrations ≤30mg/m³ and sulfur dioxide emission ≤50mg/m³. It helps enterprises in petrochemical, coking, and other high-pollution industries achieve ultra-low emissions and avoid environmental fines.

Q: What is the maximum sulfur concentration the catalyst can tolerate?

Q: How often does the catalyst need regeneration, and what is the regeneration process?

Q: Can the catalyst be used in gas streams containing both sulfur and chlorine impurities?

Q: What is the difference between this catalyst and traditional anti-sulfur catalysts?

Q: How to determine if the catalyst needs replacement instead of regeneration?

Q: What are the key precautions for storage and transportation?