In the fields of chemical industry, pharmaceuticals, bioenergy, etc., n-butanol is an important solvent and chemical raw material, and its efficient and high-purity separation and recovery are crucial. However, the azeotrope formed by n-butanol and water complicates traditional distillation separation methods, resulting in high energy consumption and low efficiency. Tiei Extraction, with its independently developed centrifugal extractor, offers disruptive technology for solvent extraction separation of n-butanol and water, helping companies reduce costs, increase efficiency, and achieve green production.
Process Pain Point: The Inseparable Connection between n-Butanol and Water
1.Azeotropic problem: n-Butanol and water form an azeotrope at a specific ratio and cannot be completely separated by conventional distillation.
2.High energy consumption: Traditional distillation requires a lot of heat energy, and the separation cost remains high.
3.Efficiency bottleneck: Traditional equipment such as extraction columns rely on gravity sedimentation, which results in long phase separation times, bulky equipment, and limited processing capacity.
4.Solvent entrainment: Incomplete separation can easily lead to product entrainment, affecting purity.
Centrifugal Extraction: The Core of Efficient Separation
To address the above pain points, Tiei Extraction provides an efficient and energy-saving solution for the liquid-liquid extraction process with centrifugal extractor as the core.
1.Mixed mass transfer: The aqueous phase raw material containing n-butanol and the selected extractant are strongly sheared and mixed by the high-speed rotating drum in the centrifugal extractor, achieving rapid mass transfer of n-butanol from the aqueous phase to the extractant phase.
2.Centrifugal phase separation: Under the action of a strong centrifugal force field, the two phases with significant density differences are separated instantly and clearly, completely overcoming the disadvantage of slow gravity sedimentation.
3.Continuous Countercurrent Extraction: Multiple centrifugal extractors are connected in series to achieve continuous countercurrent contact between the extract and raffinate phases. Fresh extractant enters from the higher stage and meets the raffinate phase with the lowest alcohol content, while feedstock enters from the lower stage and comes into contact with the extract phase with the highest alcohol content. This highly efficient process significantly improves mass transfer and solvent utilization.
4.Solvent Recovery: The n-butanol-rich extract phase enters a subsequent distillation tower. Utilizing the significant difference in boiling points between n-butanol and the extractant, high-purity n-butanol is recovered with minimal energy consumption, while the extractant is recycled. The raffinate (water) is then treated to meet standards for discharge or reuse.
Advantages of Tiei Extraction Centrifugal Extractor
- Efficient separation
Centrifugal force enhances mass transfer: Through high-speed rotation of 3000-6000 rpm, the two-phase contact time is shortened to seconds, and the mass transfer efficiency is increased by more than 3 times.
Instant phase separation: High centrifugal force instantly breaks the emulsion, compressing the phase separation time from hours to within 10 seconds, and reducing the equipment volume by 50%. - Super strong anti-emulsification ability
The patented decantation structure design can easily handle high-viscosity and easily emulsified systems, and is especially suitable for complex materials such as fermentation broth. - Closed-loop performance design
Efficient solvent recovery: integrated module, extractant recovery rate ≥ 99%, reducing raw material costs by 30%.
Energy consumption is reduced by 40%: 50% less energy than traditional distillation and 35% less energy than mixer settlers. - Intelligent integrated control
The PLC automatically adjusts the speed, flow ratio, and temperature, and monitors the extraction rate in real time to ensure that the n-butanol purity is ≥99.5%.
Supports remote operation and maintenance, reducing the failure rate by 90%.
Centrifugal extraction has injected powerful momentum into the n-butanol separation and recovery process. Through a revolutionary mass transfer efficiency and closed-loop energy-saving design, it completely resolves the energy consumption and environmental pain points of n-butanol separation, opening a new chapter in high-efficiency energy conservation, safety, environmental protection, cost reduction, and efficiency improvement!
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820
