High-Performance Alumina Honeycomb Ceramic Catalyst Carrier for Efficient Use

• Customization: Available
• Application: Catalyst carriers, Fillers, Filter materials, Heat storage materials, Various Heating Furnaces
• Cell Shape: Circle, Hexagon, Quadrilateral
• Model NO.: RJ-481
• Material: Carborundum
• Temperature Resistance: 1200℃
• Type: Structured Packing
• Usage: Chemical Engineering
• Structure Feature: Honeycomb Shape
• Effect: Catalyst Support
• Source: Aluminum Ceramic
• Character: High Temperature Resistance
• Advantage: Corrosion Resistance
• Transport Package: Steel Drum, Ton Bag, Carton Box
• Specification: 150*150*300mm
• Trademark: RONGJIAN
• Origin: China
• HS Code: 6909110000
• Production Capacity: 10000ton/Year
• Package Size: 110.00cm * 110.00cm * 100.00cm
• Package Gross Weight: 25.000kg

Product Description

Product Description

Honeycomb ceramic carriers 

Honeycomb ceramic carriers are indeed critical components in automotive exhaust treatment systems.

1. Structure and Types
Direct Carrier: Used in SCR, DOC, ASC, and TWC systems (common in diesel vehicles). These facilitate catalytic reactions without trapping particulate matter.
Wall Flow Carrier: Includes DPF (diesel) and GPF (gasoline) filters, designed to capture particulate emissions via alternating plugged channels.
Shapes: Triangular, square, or hexagonal cross-sections optimize surface area and structural strength, while circular/elliptical designs are prevalent for compatibility with exhaust systems.
2. Materials and Properties
Cordierite (2MgO·2Al₂O₃·5SiO₂): Dominates the market due to:Low thermal expansion coefficient (α ≈ 1–2 × 10^-6/°C), minimizing cracking under thermal cycling.
Excellent thermal shock resistance (ΔT > 800°C).
Challenges include high molding complexity and moderate mechanical strength (σ ≈ 10–20 MPa).
Metal Carriers (e.g., Stainless Steel Foil):Advantages: Lower back pressure, rapid warm-up (critical for cold-start emissions), and higher strength.
Limitations: High cost (3–5× ceramic), limited oxidation resistance, and immature manufacturing scalability.

Application

Honeycomb Ceramic Catalyst Carriers for Automotive Gas Purification

 Key Requirements for Automotive Catalyst Carriers
 Automotive exhaust purification catalysts require carriers with:
1. High specific surface area - Enhances catalytic activity and precious metal dispersion (e.g., Pt, Pd, Rh).
2.Thermal stability - Must withstand high temperatures (>800°C) without structural degradation.
3.Low thermal expansion - Prevents cracking under thermal cycling (e.g., cordierite: 1.0×10-6/°C).
4. Low density & thermal capacity - Improves light-off performance and reduces energy consumption.
5.Mechanical strength - Resists vibration and thermal shock in exhaust systems

Production Process

Powder Synthesis: Mix cordierite precursor (MgO-Al2O3-SiO2) + binder.
Extrusion: Form honeycomb structure via metal dies.
Drying: Microwave-assisted to prevent cracks.
Firing: Shuttle kiln (liquefied gas, fiber insulation) at 1420°C.
Finishing: Cutting, inspection, and coating (e.g., γ-Al2O3 + precious metals).
 
Applications & Future Trends
 Automotive Catalysts: TWC (Three-Way Catalysts), SCR, GPF.
Emerging Tech: Nanostructured coatings to enhance low-temperature activity.
Data-Driven Advantage: Cordierite carriers reduce backpressure by 30-50% vs. pellets, improving fuel efficiency.

Specification

Parameter	Typical Value	Notes
Material Type	Cordierite, Silicon Carbide, Alumina	Cordierite is most cost-effective
Cell Density (CPsl)	200-600 cells/inch2	Automotive: 400-600 CPSl
Wall Thickness	0.10-0.30 mm	Thin walls reduce backpressure
Open Porosity	≥70%	Affects flow efficiency
Max. Temperature	1000-1400°C	SiC withstands up to 1600'C
Thermal Expansion	0.5-1.5x10-/C(25-800°C)	Cordierite has low expansion
Compressive strength	3-10 MPa	Varies by axialradial direction
Chemical Resistance	pH 2-12 stable	Suitable for harsh environments
Shape	Round/Square/Custom	OEM designs available
Standard Diameter	50-300 mm	Automotive: 100-150 mm

Company Profile

 Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.

Innovative Solutions for Environmental & Industrial Applications

Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
 

Core Capabilities
 Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.

Corporate Strengths
  ISO 9001 Certified - Guaranteed quality management system compliance.
 300+ Workforce - Including 100+ specialized engineers and technicians.

30-Acre Production Base - Integrated R&D and manufacturing facilities.
 

Awards & Innovations
 National Science & Technology Achievement Award
Provincial Gold Medal & Famous Brand Product
17 Patented Technologies - Protecting proprietary advancements.

Packaging & Shipping

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