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SAPO-34 is a silicoaluminophosphate molecular sieve with a chabazite (CHA) crystal structure, featuring 8-membered ring pores (0.38×0.38 nm) and a three-dimensional channel system formed by the ABC-sequence stacking of double six-rings. This unique topology endows it with excellent shape-selective catalysis, making it the ideal core material for MTO reactions—effectively converting methanol into high-value light olefins (ethylene and propylene) with high efficiency and low by-product formation. With a trigonal crystal system (space group R3m) and a BET surface area of over 550 m²/g, it combines proper Bronsted acidity and porous structure to deliver superior catalytic performance.
The global chemical industry is undergoing a significant shift from petroleum-based to coal/natural gas-based olefin production, and SAPO-34 has emerged as a core catalyst driving this transition. Its unique ability to suppress unwanted side reactions (such as methanol conversion to alkanes or aromatics) and maximize C2-C3 olefin output directly impacts plant profitability, operational efficiency, and cost control. For large-scale MTO/MTP plants, selecting high-quality SAPO-34 zeolite is key to achieving stable production, reducing raw material waste, and enhancing market competitiveness.
Our CHA framework SAPO-34 zeolite achieves a combined C2-C3 olefin selectivity of ≥85% under standard industrial operating conditions, outperforming conventional SAPO-34 catalysts by 3-5 percentage points. This significant selectivity advantage translates directly to higher product output, reduced raw material consumption per ton of olefins, and improved overall plant economics. Whether for MTO or MTP processes, this selectivity ensures maximum utilization of methanol feedstock.
Engineered for harsh industrial operating environments, our SAPO-34 zeolite can withstand repeated regeneration cycles at temperatures up to 750°C. After 100+ regeneration cycles, it maintains over 90% of its initial catalytic activity—far exceeding the industry average of 70-80%. This enhanced stability reduces catalyst replacement frequency, minimizes plant downtime, and lowers maintenance costs for MTO plants.
Through optimized acid site distribution and precise crystal size control (1-3 μm), our SAPO-34 zeolite significantly reduces carbon deposition (coking) during MTO reactions. Compared to standard SAPO-34 catalysts (service life of 3-4 months), our product delivers a service life of 6-9 months in continuous industrial operations. This extended lifespan cuts catalyst procurement costs and reduces the environmental impact associated with catalyst disposal.
Our SAPO-34 zeolite features a narrow particle size distribution (D90 ≤ 5 μm, D50: 5-10 μm), ensuring consistent fluidization behavior in circulating fluidized bed (CFB) reactors—one of the most common reactor types for large-scale MTO processes. This uniformity prevents channeling, improves mass transfer efficiency, and ensures stable reaction conditions, ultimately enhancing overall plant productivity.
Parameter | Typical Value | Test Method |
|---|---|---|
Crystal Structure | CHA | XRD |
P₂O₅:SiO₂:Al₂O₃ (mol/mol) | 1:1:0.5 | ICP-AES |
SiO₂/Al₂O₃ Molar Ratio | 0.3-0.6 | ICP-AES |
BET Surface Area | 550-650 m²/g | N₂ Adsorption |
Pore Diameter | 0.38×0.38 nm | N₂ Adsorption |
Pore Volume | 0.25-0.30 cm³/g | N₂ Adsorption |
Average Crystal Size | 1-3 μm | SEM |
Na₂O Content | ≤0.1 wt% | ICP-AES |
Loss on Ignition (1000°C) | ≤10 wt% | Gravimetric |
Combined C2-C3 Selectivity | ≥85% | Fixed Bed Reactor |
Particle Size (D50) | 5-10 μm | Laser Particle Size Analyzer |
This is the primary application of our CHA framework SAPO-34 zeolite. It is widely used in large-scale coal-to-chemicals and natural gas-to-chemicals facilities, converting methanol into polymer-grade ethylene and propylene—key raw materials for the plastics, fibers, and chemical intermediates industries. Our product is compatible with all major MTO reactor designs, including CFB and fixed-bed reactors.
We offer modified SAPO-34 formulations specifically tailored for MTP processes, delivering propylene selectivity of ≥70% with minimal ethylene co-production. This customization helps plants focus on high-demand propylene production, catering to the growing global market for polypropylene and other propylene-derived products.
Our SAPO-34 zeolite can also be used as an additive in FCC units to enhance light olefin yield (ethylene and propylene) and improve gasoline octane rating. When added to conventional FCC catalysts, it promotes the cracking of heavy hydrocarbons into high-value light olefins, increasing the overall profitability of refineries.
Beyond MTO/MTP and FCC, our SAPO-34 zeolite is also used in the treatment of NOₓ emissions, oxidative dehydrogenation of ethane, propane, and butane, and as a component in zeolitic membranes for selective separation of CO₂/CH₄ and purification of H₂—expanding its value across multiple chemical industry sectors.
Our state-of-the-art production facility in China boasts an annual capacity of 5,000 tons of SAPO-34 zeolite, ensuring stable and timely supply for global industrial customers. We implement strict ISO 9001:2015 quality management systems throughout the entire production process—from raw material selection to final product testing—guaranteeing consistent product quality batch after batch.
Our team of 30+ material scientists and chemical engineers is dedicated to optimizing SAPO-34 synthesis processes and catalyst formulations. We hold 12 patents related to SAPO-34 production and modification technologies, and our R&D center is equipped with advanced testing equipment (XRD, SEM, ICP-AES) to ensure continuous product innovation and performance improvement.
We understand that every MTO plant has unique operating conditions and requirements. That’s why we offer tailored SAPO-34 products with adjustable SiO₂/Al₂O₃ ratios, crystal sizes, and acid properties to match specific reactor designs, feedstock quality, and production goals. Our technical support team works closely with customers to optimize catalyst performance and maximize plant efficiency.
We provide door-to-door shipping to over 30 countries worldwide, with flexible logistics solutions to meet urgent order needs. Our dedicated technical support team offers on-site installation, commissioning, and troubleshooting services, ensuring seamless integration of our SAPO-34 zeolite into your production process. We also provide long-term after-sales support to address any operational challenges.
Standard orders (1-50 tons) are shipped within 15-20 business days. For large-volume orders (≥100 tons), please contact our sales team for a customized production schedule to ensure on-time delivery.
Yes, we offer 500g free samples for laboratory evaluation. Customers only need to cover the shipping cost. Our technical team can also provide detailed testing guidelines and support to help you evaluate the catalyst’s performance in your specific conditions.
Absolutely. Our technical team can conduct performance tests in our pilot plant (equipped with a small-scale MTO reactor) and provide detailed recommendations for operating parameter adjustments (temperature, pressure, feed rate) to optimize catalyst performance and maximize olefin yield.
While our SAPO-34 zeolite is primarily engineered for industrial MTO reactions, the natural silicoaluminophosphate composition of zeolite makes it suitable for organic agriculture applications (soil improvement, nutrient retention). For agricultural-grade zeolite products, please contact our sales team for customized solutions.
The application rate depends on factors such as reactor type, feedstock quality, and production capacity. Typically, the loading rate of SAPO-34 catalyst in MTO reactors is 5-10% (by weight) of the total catalyst inventory. Our technical team will provide a precise recommendation based on your specific plant conditions.
Ready to improve your MTO plant performance with high-efficiency CHA framework SAPO-34 zeolite? Contact Yutai Zeolite today to request a detailed product datasheet, free sample, or customized quotation. Our experienced sales engineers will respond within 24 hours to discuss your specific requirements and help you find the optimal catalyst solution for your operation. Trust Yutai Zeolite—your reliable partner for high-performance zeolite materials.