Name: Zeolite ZSM-5 Catalyst (pellet、ball、powder)
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Product classification

Zeolite ZSM-5 Catalyst (pellet、ball、powder)

ZSM catalyst

Zeolite ZSM-5 is mainly used for hydrocarbon interconversion, meta-xylene to para-xylene, for example. ZSM-5 is a zeolite with a high silica to alumina ratio. The substitution of an aluminum ion (charge 3+) for a silicon ion (charge 4+) requires the additional presence of a proton. This additional proton gives the zeolite a high level of acidity, which causes its activity. ZSM-5 is a highly porous material and throughout its structure it has an intersecting two-dimensional pore structure.

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Product Description

Zeolite ZSM-5 Catalyst Specification Matrix

MFI Framework Zeolite CAS No. 1318-02-1 / 308081-08-5

ZSM-5 is a high-silica pentasil-type zeolite with a unique three-dimensional 10-ring intersecting pore network. Offering superior hydrothermal stability, adjustable acidity, and exceptional shape-selective catalytic performance across petrochemical, refining, and fine chemical industries.

Pore Aperture 5.4 × 5.6 Å (3D Intersecting)

SiO₂ / Al₂O₃ Ratio 25 – 300+ (Customizable)

Relative Crystallinity ≥ 95%

Available Forms Pellet, Ball, Powder

Physical Morphologies & Form Selection

Select the optimal physical form according to your fixed-bed, fluid-bed, or slurry reactor configuration.

Fixed-Bed Reactor

Extrusate Pellets

Shape: Cylindrical / Cloverleaf / Trilobe
Diameter: 1.5mm, 2.0mm, 3.0mm, 5.0mm
Crushing Strength: ≥ 60 N/cm
Binder Type: Alumina / Silica / Binder-Free

Low Pressure Drop

Spherical Balls

Shape: Uniform Spheres
Diameter: 2–3mm, 3–5mm, 4–6mm
Crushing Strength: ≥ 80 N/bead
Abrasion Loss: ≤ 0.2% wt

Raw / Catalyst Synthesis

Zeolite Powder

Particle Size (D50): 1–3 μm / Nano-sized (<100nm)
Cation Form: H-Type (Proton) / Na-Type / NH4-Type
Purity: High purity without active binders
Dispersion: Excellent slurrying capability

SiO₂ / Al₂O₃ Ratio Grade Matrix

Acidity and catalytic activity are strongly influenced by the silica-to-alumina ratio. Choose the exact grade for your application.

SiO₂ / Al₂O₃ Ratio	Na₂O (wt%)	BET Surface Area	Pore Volume	Acidity Characteristic	Primary Industrial Applications
Ratio 25 – 30	≤ 0.10%	≥ 360 m²/g	≥ 0.25 cm³/g	High Strong-Acid Content	FCC Additive Diesel Dewaxing Cracking
Ratio 38 – 50	≤ 0.08%	≥ 380 m²/g	≥ 0.26 cm³/g	Medium-High Acidity	Toluene Disproportionation Xylene Isomerization
Ratio 80 – 100	≤ 0.05%	≥ 400 m²/g	≥ 0.28 cm³/g	Balanced Moderate Acidity	MTP / MTG (Methanol to Olefins/Gasoline) Ethylbenzene Synthesis
Ratio 150 – 200	≤ 0.05%	≥ 400 m²/g	≥ 0.30 cm³/g	Weak Acidity / High Hydrophobicity	Aromatics Alkylation Fine Organic Synthesis
Ratio 300+ (Silicalite-1)	≤ 0.03%	≥ 420 m²/g	≥ 0.32 cm³/g	Near Zero Acid / Hydrophobic	VOC Abatement Organics/Water Adsorption Separation

Technical Performance Advantages

Engineered with precise crystallization control for max selectivity and long life cycle.

1. Precise Shape-Selective Catalysis

The 10-membered ring pore channels restrict steric hindrance, allowing high yield of targeted straight-chain or specific para-isomer products (e.g., Para-Xylene) while suppressing bulky byproduct formation.

2. Exceptional Hydrothermal Stability

Maintains crystal framework integrity even under high-temperature steam regeneration cycles (600°C–800°C), minimizing irreversible dealumination.

3. Tailored Brønsted / Lewis Acid Sites

Acid strength and concentration can be customized via ion exchange (e.g., H-ZSM-5, La-ZSM-5, Zn-ZSM-5, P-modified) to meet unique reaction kinetic requirements.

4. High Anti-Coking & Long Cycle Life

Optimized mesoporous hierarchical pore architecture reduces internal diffusion resistance, significantly delaying coke deposition and extending single-run active lifetime.

Need Custom Silica-Alumina Ratio or Binder Formulation?

Our catalysis laboratory supports custom Na/H/Metal exchanges, tailored binder matrixes, and specialized extrusion shapes.

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