Anyan AYAN-B80 Short-Path Molecular Distillation System with Rotating Wiped-Film Evaporator

Overview

The Anyan AYAN-B80 Short-Path Molecular Distillation System is a precision-engineered rotating wiped-film evaporator designed for high-efficiency, low-temperature separation of thermally labile, high-boiling, and highly viscous compounds. Operating under ultra-high vacuum (<0.1 Pa), it enables molecular distillation—where mean free path exceeds evaporator dimensions—thereby minimizing thermal degradation and enabling selective volatilization based on molecular weight and vapor pressure differentials. Unlike conventional distillation, this system relies on short-path condensation geometry and dynamic film formation via a mechanically driven刮板 (wiper) assembly, ensuring uniform heat transfer and sub-second residence time on the heated surface. It is widely deployed in R&D laboratories and pilot-scale purification workflows across fine chemical synthesis, pharmaceutical active ingredient isolation, nutraceutical concentration (e.g., fish oil EPA/DHA enrichment), and natural product extraction (e.g., wool wax alcohols, vitamin A/E isolates). Its design conforms to fundamental principles outlined in ASTM D2892 and ISO 17025-compliant operation frameworks for traceable, reproducible separations.

Key Features

• Ultra-high vacuum capability (<0.1 Pa) achieved via integrated vacuum pump interface and fluorocarbon-sealed joints, ensuring minimal oxidative stress on sensitive molecules.
• Rotating wiped-film architecture with adjustable rotor speed (0–450 rpm) and three interchangeable wiper types: PTFE sliding blades (≤150 °C), stainless steel fixed-gap blades (for foaming or viscous feeds), and hinged metal blades (for fouling-prone feedstocks).
• Thin-film evaporation layer (<0.5 mm thickness) maintained by centrifugal force and precise wiper geometry, delivering high heat-transfer coefficients and negligible wall overheating.
• Evaporator cylinder constructed from SS316L stainless steel with electropolished interior surface (Ra < 0.4 µm) and jacketed heating zone (ambient to 200 °C, ±1 °C control accuracy).
• Modular condenser assembly with 0.15 m² cooling surface, integrated cold trap, and optional external condensation unit for multi-stage fractionation.
• Fluoroelastomer (FKM) gaskets at all static interfaces; PTFE gasket upgrade available for aggressive solvents (e.g., chlorinated hydrocarbons, strong acids/bases).
• Pre-heating feed vessel (optional) with PID-controlled temperature regulation (ambient to 120 °C) to reduce thermal shock and improve film stability.
• No boiling or bubbling phenomena—evaporation occurs exclusively at the liquid–vapor interface under laminar flow conditions, eliminating entrainment and foaming artifacts.

Sample Compatibility & Compliance

The AYAN-B80 accommodates feedstocks ranging from low-viscosity organic extracts (e.g., ethanol plant extracts) to high-viscosity materials (up to 50,000 cP), including polymer intermediates, fatty acid methyl esters, sterol fractions, and peptide solutions. Its non-reactive wetted path (SS316L + PTFE) complies with USP Class VI biocompatibility requirements for pharmaceutical processing. All vacuum and temperature control systems support GLP/GMP-aligned audit trails when interfaced with validated third-party data loggers. While not intrinsically 21 CFR Part 11 compliant, the system’s analog I/O and RS485 port allow integration into compliant SCADA environments for electronic record retention, signature authentication, and change control per FDA guidance.

Software & Data Management

The AYAN-B80 operates via a dedicated front-panel controller with real-time display of vacuum level (capacitance manometer), heating jacket temperature, rotor speed, and feed rate (when paired with calibrated peristaltic pump). Optional USB/RS485 connectivity enables logging of time-stamped process parameters into CSV-compatible files for post-run analysis. No proprietary software suite is bundled; instead, raw sensor outputs are compatible with LabVIEW, MATLAB, or custom Python-based acquisition scripts—facilitating seamless incorporation into laboratory information management systems (LIMS) or electronic lab notebooks (ELN). Calibration certificates for vacuum and temperature sensors are provided upon request, traceable to NIST standards.

Applications

• Purification of heat-sensitive vitamins (A, E, K), carotenoids, and coenzyme Q10 from botanical or microbial sources.
• Deacidification and deodorization of edible oils (e.g., fish oil, palm olein) without trans-fat formation or tocopherol loss.
• Isolation of monoglycerides, diglycerides, and structured lipids for functional food applications.
• Recovery and concentration of catalyst residues (e.g., Ru, Pd complexes) from homogeneous catalysis reaction mixtures.
• Separation of polymeric oligomers (e.g., silicone fluids, polyetheramines) by molecular weight distribution.
• Removal of residual solvents (e.g., toluene, THF, DCM) from API intermediates prior to crystallization—meeting ICH Q3C thresholds.

FAQ

What vacuum level is required for optimal molecular distillation performance?

For effective short-path operation, absolute pressure must remain below 0.1 Pa (1×10⁻³ mbar). The AYAN-B80 achieves this using a two-stage rotary vane pump coupled with a cold trap; ultimate vacuum is verified with a capacitance manometer.

Can the system handle feed materials containing suspended solids or particulates?

No—feed streams must be pre-filtered to ≤5 µm to prevent wiper jamming or uneven film formation. For slurries or crystallizing feeds, upstream filtration or centrifugation is mandatory.

Is the evaporator cylinder removable for cleaning or inspection?

Yes—the entire evaporation module is flanged and demountable using standard ISO-KF 40 vacuum fittings, allowing full visual inspection and ultrasonic cleaning of the heated surface.

What maintenance intervals are recommended for the wiper assembly and drive motor?

Wiper blades should be inspected after every 50 hours of operation; PTFE blades require replacement every 200–300 hours under continuous use. Motor bearings are sealed-for-life but benefit from annual torque verification of coupling alignment.

Does Anyan provide validation documentation (IQ/OQ) for regulated environments?

Factory-issued IQ templates and OQ test protocols are available upon order confirmation; execution requires user-supplied calibrated instruments and qualified personnel per ISO 13485 or GMP Annex 15 guidelines.