Products
Products
3A Molecular Sieve for Ethanol Dehydration
Applications:
Gas Purification Anhydrous Ethanol Food CO2 TDS MSDS
Product Introduction
The ethanol dehydration-specific molecular sieve jointly developed by Dalian Chuangge Technology Co., Ltd. and Dalian University of Technology is a dedicated adsorbent for the dehydration of ethanol to anhydrous ethanol in the fermentation-based ethanol production process and the coal-to-ethanol (DMTE) process. In response to the challenges posed by different by-products and low product purity in these processes, we have conducted extensive research and developed a specialized molecular sieve for ethanol dehydration. This molecular sieve has been specifically designed and optimized to significantly enhance dehydration efficiency, ensuring that the purity of ethanol meets or exceeds design requirements. Following treatment with our molecular sieve, the ethanol content can reach from 95% to 99.99% (V/V). Through innovative technology and rigorous production control, our specialized molecular sieves demonstrate outstanding performance in the dehydration process, providing a reliable guarantee for industrial ethanol in traditional vapor phase pressure swing plants, but can also be used in small liquid phase units.
Ethanol dehydration special molecular sieve, which has the following characteristics:
- The highly selective adsorption technology makes the molecular sieve have excellent adsorption properties. By using molecular sieve raw powder with high exchange rate, the molecular sieve has strong adsorption properties for water, while the adsorption properties for ethanol and heteroalcohol are almost negligible. Its strong adsorption capacity ensures an efficient adsorption process.
- Additionally, the product's strength is meticulously designed, and the high viscosity adhesive utilized in the production process ensures that it meets the strength requirements for gas phase or liquid phase ethanol dehydration, preventing powdering during application.
- The utilization of specialized molecular sieves for ethanol dehydration can significantly reduce the energy consumption in the anhydrous ethanol dehydration process, with a minimum steam consumption in the production process reaching 0.50T/T. Furthermore, the dehydrated ethanol from the molecular sieve can achieve very low water content, typically meeting electronic grade standards below 80ppm. This highly efficient and energy-saving molecular sieve technology holds significant application value for the ethanol purification industry.
Cas No.: 1318-02-1
Molecular formula: 2/3K2O·1/3Na2O·Al2O3·2SiO2·9/2H2O
Silica-alumina ratio: SiO2/ Al2O3≈2
Performance Index
|
Product Name |
CG-318 |
CG-319 |
|
Pore size Å |
3 |
3 |
|
Bulk density (kg/m3) |
≥ 720 |
≥ 720 |
|
Adsorption heat kJ/kg H2O |
~4186 |
~4186 |
| Crush Strength N/P | ≥40 | ≥90 |
|
Size (mm) |
φ1.7 - 2.5 |
φ3.0 - 5.0 |
| CO₂ adsorption capacity (%wt) |
≤1.0 |
≤1.0 |
|
Static water adsorption (wt, %) |
≥21% |
≥21% |
|
Moisture (wt, %) |
≤1.5% |
≤1.5% |
Molecular sieve dehydration technical
Molecular sieve beds can have a significant impact on the quality and operating costs of ethanol producers, and molecular sieves used for ethanol dehydration should have the following characteristics:
Mechanical integrity to withstand the demands of pressure fluctuations and minimize breakage or dust generation;
Adsorption efficiency and selectivity in order to quickly remove water while minimizing the amount of ethanol co-adsorbed.
Quality Standards
- Finished alcohol complies with the National Standard for Chemical Reagents - Ethanol (Anhydrous Ethanol) (GB/T 678-2002).
- The quality of finished anhydrous ethanol, except for moisture content, is determined by the quality of the raw alcohol used. The anhydrous ethanol produced, when mixed with a denaturant, becomes fuel ethanol.
Molecular Sieve Dehydration Method
- The molecular sieve adsorption dehydration method for producing anhydrous ethanol works on the principle that water is effectively adsorbed and desorbed in the pores of zeolite, thereby achieving the dehydration of ethanol.
- This technology utilizes the special adsorption effect of water by molecular sieves and their desorbability. It employs the most advanced automatic control means and adopts a two-tower alternating adsorption and regeneration process in the production flow to automatically achieve continuous dehydration and online production.
- Semi-finished alcohol vapor is overheated to a certain temperature and then enters the molecular sieve adsorption tower. During the passage of the alcohol vapor through the molecular sieve packing layer, water molecules are selectively adsorbed and condensed by the small pores of the molecular sieve, releasing heat and achieving the dehydration of the alcohol vapor. The alcohol vapor discharged from the dehydration device is then condensed and cooled to obtain anhydrous ethanol with a concentration of 99.5-99.99% (V/V).
- When the temperature reaches a certain level, the control system switches the relevant valves to change the adsorption tower from the adsorption state to the negative pressure desorption state. Desorption stops when the temperature reaches a certain point. Then, by switching the valves, the next adsorption cycle begins.
More Information
If you want to know more about the use, performance, price, etc., please contact our sales representative. We will provide you with professional advice and quality services to meet your needs. Chuangge Technology has always adhered to the principle of customer first, and is committed to providing customers with more efficient and reliable adsorbent products to meet the needs of different fields. Our team provides support with consultati on, training and start up assistance when the unit is commissioned. After sales service is available if service is required.
Dalian Chuangge Technology Co., Ltd
Richard Han
Doris Zhou
Headquater: 9th Floor, Century Classic Building, No.10, Xinghai Square, Shahekou District, Dalian City, Liaoning Province
Copyright: Dalian Chuangge Technology Co., Ltd. Business License Privacy Policy
