Aogochem supplies high-selectivity SAPO-34 Molecular Sieve Catalysts, the industry-standard for Methanol-to-Olefins (MTO) technology. Our CHA-framewor...
Aogochem's SAPO-34 Catalyst is the industrial cornerstone of the Methanol-to-Olefins (MTO) process. It is a siliconaluminophosphate molecular sieve with a CHA framework structure, featuring small 8-membered ring pore openings (~3.8 Å). This unique size and shape selectivity is perfectly tuned to favor the formation of light olefins (ethylene and propylene) while restricting the diffusion and formation of larger, unwanted hydrocarbons, ensuring exceptional product purity and process efficiency.
This catalyst is exclusively designed for the MTO and MTP processes, enabling the conversion of methanol—derived from natural gas, coal, or biomass—into high-demand petrochemical building blocks. For regions like MENA and CIS with abundant natural gas resources, SAPO-34 is the key to monetizing gas reserves and diversifying into the high-value chemical chain, reducing reliance on traditional oil-based olefin production and strengthening integrated petrochemical complexes.
We supply SAPO-34 catalysts engineered for optimal acidity, crystal size, and superior hydrothermal stability to withstand the harsh conditions of continuous fluidized-bed reaction and regeneration. Partnering with Aogochem provides access to catalyst technology proven in global operations, dedicated technical support for MTO process optimization, and a reliable supply chain tailored to support major energy-to-chemicals projects in strategic markets.
The performance of SAPO-34 is defined by its CHA structure and acid properties, which are carefully controlled to maximize MTO efficiency.
| Parameter | Unit | Typical Specification / Description | Importance / Notes |
|---|---|---|---|
| Framework Type | - | CHA | Defines the small pore (~3.8 Å) cage structure crucial for shape-selective production of C2-C4 olefins. |
| Chemical Composition | - | Silicon Aluminum Phosphate (SAPO) | Provides mild acidity and the specific Brønsted acid strength ideal for the MTO reaction mechanism. |
| Key Performance Metric | - | High Light Olefin Selectivity (C₂= + C₃=) | Typically achieves >80% combined selectivity to ethylene and propylene at high methanol conversion. |
| Acidity | - | Mild to Moderate Brønsted Acidity | Tailored acidity is critical; too strong leads to rapid coking, too weak reduces activity. |
| Crystal Size | µm | Controlled (e.g., sub-micron to few microns) | Smaller crystals reduce diffusion limitations, improve effectiveness, and mitigate coking rates. |
| Typical Form | - | Microspheres (Spray-Dried) | Engineered with matrix/binder for high attrition resistance in industrial fluidized bed reactors. |
| Hydrothermal Stability | - | Excellent | Essential to maintain activity and selectivity through thousands of reaction-regeneration cycles in steam-rich environments. |
SAPO-34’s application is highly focused on one of the most important alternative pathways in the petrochemical industry.
Methanol-to-Olefins (MTO) / Methanol-to-Propylene (MTP) Processes: This is the sole and defining industrial application of SAPO-34. It serves as the catalyst in fluidized bed reactors (like in the UOP/Hydro MTO or DMTO processes) where methanol vapor is converted over SAPO-34 into a mixture of light olefins. The product slate can be adjusted by process conditions but is predominantly ethylene and propylene.
Gas-to-Chemicals (GTC) & Coal-to-Chemicals (CTC) Complexes: SAPO-34 is the enabling catalyst at the heart of these mega-projects. It bridges the gap between syngas-derived methanol and the core petrochemicals, allowing resource-rich nations to build integrated complexes that convert natural gas or coal directly into plastics and chemical precursors.
Aogochem is a strategic supplier for this critical and technologically advanced catalyst, supporting the future of olefin production.
Focused MTO Process Expertise: Our development is dedicated solely to optimizing SAPO-34 for MTO performance. We understand the intricate balance between activity, selectivity, and lifetime required for commercially viable operations.
Optimized for Operational Efficiency: Our catalysts are designed not just for high initial selectivity but for controlled deactivation and stable performance over long cycles. This predictability is vital for planning regeneration cycles and ensuring consistent plant output, directly impacting operational economics.
Designed for Project Success: We tailor catalyst properties to align with specific reactor designs and client product slate objectives (ethylene vs. propylene focus). We provide the technical data and support needed for the successful design, commissioning, and sustained operation of your MTO unit.
Partner for Regional Energy Diversification: We are committed to supporting the strategic vision of MENA and CIS nations to add value to their hydrocarbon resources. Supplying reliable, high-performance SAPO-34 catalyst is a key part of enabling this downstream transformation and industrial growth.
Loading & Start-up: Catalysts are loaded into the fluidized bed reactor system using specialized equipment. Initial start-up involves careful heating and conditioning according to a strict vendor/licensor procedure to ensure proper catalyst activation.
Operation (Reaction-Regeneration Cycle): The MTO process operates in a continuous cycle: the catalyst reacts in the reactor (forming olefins and coke), is transported to the regenerator (where coke is burned off with air), and is then returned to the reactor. Precise control of reactor temperature, regenerator temperature, and catalyst circulation rate is paramount.
Catalyst Management: Continuous catalyst addition (make-up) is required to maintain activity due to natural attrition and deactivation. A steady-state inventory with defined activity is maintained through a balanced make-up and withdrawal system.
Storage & Safety: Store microspheres in a dry, sealed environment. Use appropriate dust control measures during handling. Spent catalyst may contain residual coke. Always follow the Safety Data Sheet (SDS) and site-specific safety protocols for handling and disposal.
Contact: Ms. Wang
Phone:
Tel: +86 177 699 404 99
Email: info@aogochem.com
Add: Licang, Qingdao City, Shandong Province