Integrated Devolatilization Technology Introduction
- Technology Introduction
Built on DODGEN’s extensive expertise in static mixing and high-efficiency heat transfer, devolatilization Technology provides a critical purification solution for core polymer production processes.
By means of a multi-stage, staged devolatilization design, the material is uniformly heated and fully extended within the system to generate a very large specific surface area. This enables the efficient removal of unreacted monomers, solvents, and other volatile components.
Residual solvent content can be accurately controlled to below 500 ppm, significantly improving product purity and quality. At the same time, the polymer molecular structure remains intact under mild processing conditions.
The technology is widely applicable to the purification of various high-end polymer materials.
- Principle
The core of the technology lies in “uniform heat supply, ultra-fine distribution, and staged separation”.
First, a high-efficiency heat exchanger with built-in static mixing elements provides uniform and controllable heat input for high-viscosity materials, supplying the driving force for devolatilization.
Next, a dedicated distributor disperses the polymer melt into countless fine falling strips, creating “high-speed pathways” for volatile removal and greatly reducing mass-transfer resistance.
Finally, under a multi-stage vacuum environment, volatiles are removed step-by-step to achieve deep purification and thorough separation.
Key Advantages
Deep Purification Capability: Residual solvent content can be stably reduced to below 500 ppm, meeting stringent purity requirements for high-end applications.
Preservation of Intrinsic Properties: A mild thermal history combined with a low-shear design effectively prevents chain scission or material degradation, safeguarding critical performance indicators.
Outstanding Energy Efficiency: With no moving parts, the system consumes significantly less energy than conventional devolatilization equipment, while substantially reducing operating and maintenance costs.
Flexible Process Adaptability: A modular, multi-stage architecture can be configured based on material characteristics and product specifications, offering excellent process flexibility.
Strong Return on Investment: Compared with traditional devolatilization solutions, total cost savings of up to 40–60% can be achieved, delivering outstanding economic benefits.
Services
DODGEN provides end-to-end technical support from concept to start-up, including detailed process simulation and hydraulic calculations to ensure a robust and forward-looking solution.
Customized mechanical design and high-quality equipment fabrication to guarantee core system performance.
Rigorous assembly, commissioning and start-up support to ensure successful project delivery.
We are committed to being your long-term partner, providing reliable support for process upgrades and new product development.
Applications
A standard choice for production lines of high-end polymers such as Polystyrene (PS), ABS/SAN, Polycarbonate (PC), Polyether Polyols (PEG), Polyoxymethylene (POM), Polyolefin Elastomers (POE) and biodegradable plastics.
