Welcome: Yiwu Weihao Machinery Equipment Company
Yiwu Weihao Machinery Equipment Company as a specialist in solvent recovery equipment, we design and produce high-performance Single-effect Ethanol Recovery Vacuum Evaporators. This dedicated system is engineered to efficiently recover ethanol (ethyl alcohol) from aqueous solutions or organic solvents via low-temperature vacuum evaporation. It addresses the critical challenges of solvent loss, fire hazards, and product degradation in traditional heating processes, providing a safe, cost-effective, and environmentally sustainable solution for the pharmaceutical, food, chemical, and bio-tech industries.
Our Single-effect Ethanol Recovery Vacuum Evaporator is a purpose-built system for the concentration and recovery of ethanol-containing solutions. Unlike general-purpose evaporators, this unit is optimized for ethanol's low boiling point and flammability through specialized vacuum control and explosion-proof design. The equipment operates by creating a high vacuum environment to lower the ethanol's boiling point significantly, enabling gentle evaporation without igniting the solvent. The generated ethanol vapor is then condensed and recovered as high-purity liquid, which can be recycled back into the production process—reducing raw material costs and environmental impact. This system is particularly suitable for low-to-medium volume ethanol recovery projects where space is a constraint, or for small-batch, high-value product lines.
Feed Preparation: The ethanol-containing feedstock (e.g., herbal extraction solvent, food flavoring solution, or chemical reaction liquor) is pre-filtered to remove suspended solids and impurities, preventing clogging of the heating tubes. It is then pumped into the vacuum evaporation chamber.
Vacuum Environment Establishment: The vacuum system evacuates the evaporation chamber, creating a negative pressure environment (typically -0.08 to -0.095 MPa). This drastically lowers the boiling point of ethanol, enabling it to evaporate at temperatures as low as 40-70°C, far below its flammability threshold.
Gentle Heating & Evaporation: The feed liquid is heated by a jacketed or tube heating system using low-pressure steam or hot water. Under the reduced pressure, the ethanol in the solution boils and vaporizes rapidly, separating from the non-volatile components (e.g., herbal extracts, food solids).
Vapor Compression & Condensation (Optional): The generated ethanol vapor is drawn into a condenser (or compressed by a small MVR compressor for energy recovery) where it is cooled and condensed back into high-purity liquid ethanol. The condensed ethanol is collected in a dedicated storage tank for reuse.
Concentrated Discharge: The non-volatile, concentrated liquid (now free of most ethanol) is periodically or continuously discharged from the bottom of the evaporator to the next processing stage.
Ultimate Safety: Operates under high vacuum at low temperatures (40-70°C), completely avoiding the flash point of ethanol (363°C / 68°C approx.), eliminating fire and explosion risks associated with high-temperature heating.
High Recovery Rate: Efficiently recovers 90%+ of the ethanol solvent, significantly reducing raw material consumption and waste disposal costs. The recovered ethanol has high purity (≥95%), making it directly reusable in the extraction or production process.
Gentle Processing: Low-temperature evaporation preserves the integrity of heat-sensitive materials such as active pharmaceutical ingredients (APIs), natural flavors, and bio-active compounds, ensuring the final product's color, aroma, and efficacy are maintained.
Energy Efficiency (Optional): Can be integrated with a small MVR (Mechanical Vapor Recompression) system to recompress the ethanol vapor, further reducing steam consumption by up to 80% compared to traditional steam-heated systems.
Hygienic & Easy to Clean: Constructed from 316L food/pharmaceutical-grade stainless steel, fully compliant with GMP, FDA, and ISO standards. Features CIP (Clean-in-Place) systems for quick and thorough sanitation, critical for multi-product batches.
Compact & Robust: Single-effect design with a small footprint is ideal for small-to-medium production facilities or as a complement to larger multi-effect systems. The simplified structure ensures high reliability and ease of maintenance.
| Parameter | Specification |
|---|---|
| Feed Capacity | Customized |
| Evaporation Capacity | 100 – 10000 L/h (varies by ethanol concentration and feed type) |
| Operating Temperature | 40 – 70°C (Low-Temperature, Safe Evaporation) |
| Operating Vacuum | -0.08 ~ -0.095 MPa |
| Heating Medium | Steam / Hot Water |
| Ethanol Recovery Rate | ≥ 90% (Purity: ≥ 95%) |
| Material of Construction | SUS304/316L Stainless Steel |
Pharmaceutical Industry: Recovery of ethanol from herbal extracts, traditional Chinese medicine (TCM) extraction solvents, and API (Active Pharmaceutical Ingredient) purification processes.
Food & Beverage: Recovery of ethanol from fruit wine, vinegar production, natural flavor concentration, and food additive processing.
Fine Chemical Industry: Recovery of ethanol solvents from chemical synthesis, resin production, and specialty chemical manufacturing.
Bio-Technology: Concentration and recovery of ethanol in bio-fermentation and bio-ethanol production processes.
We provide end-to-end, turnkey solutions for your Single-effect Ethanol Recovery Vacuum Evaporator requirements:
Process Engineering & Design: Detailed feasibility studies and customized system design based on your specific ethanol concentration, feed volume, target recovery rate, and safety compliance standards.
Precision Manufacturing: Strict quality control for the vacuum system, explosion-proof components, and sanitary piping to ensure maximum safety and performance.
Global Installation & Commissioning: Professional on-site teams for seamless integration, including system startup, performance testing, and operator training on safety protocols.
Lifelong Technical Support: Comprehensive after-sales service, including spare parts supply, troubleshooting, and remote monitoring to ensure uninterrupted, safe operation.
Contact Us Today for a free technical consultation, safety assessment, and a customized quotation tailored to your exact ethanol recovery needs.
