PILOTECH CE-30 Pilot-Scale Vacuum Concentrator

Overview

The PILOTECH CE-30 Pilot-Scale Vacuum Concentrator is an engineered solution for low-temperature, high-efficiency concentration and solvent recovery under controlled vacuum conditions. Designed on the principles of dynamic circulation evaporation and falling-film heat transfer, the system maintains precise thermal management across varying feed viscosities and solute concentrations. Unlike static batch evaporators, the CE-30 employs a continuous recirculation loop between the concentrator body and external heat exchanger, ensuring uniform film formation on heated surfaces and minimizing localized overheating. This architecture is particularly critical for thermolabile compounds—such as glycosides, volatile oils, and polyphenols—commonly encountered in herbal extract processing, nutraceutical development, and fine chemical synthesis. The unit operates within a regulated vacuum range (typically 5–50 mbar), enabling boiling point depression to as low as 30–45 °C depending on solvent composition and system pressure, thereby preserving molecular integrity while achieving concentration ratios up to 1:8 (v/v) in single-pass configurations.

Key Features

• Integrated vacuum concentration and condensable organic solvent recovery in a single skid-mounted system, eliminating cross-contamination risks between unit operations
• Thermal oil heating circuit with PID-controlled temperature regulation (±0.5 °C accuracy) and real-time display of jacket temperature, internal vapor temperature, and feed inlet temperature
• Full-enclosure design compliant with ATEX Category 3G (for Zone 2 solvent environments); no open steam lines or atmospheric vents during operation
• 316L stainless steel wetted components—including evaporator shell, circulation piping, condenser tubes, and phase separator—passivated per ASTM A967 and electropolished to Ra ≤ 0.4 µm surface finish
• Automated PLC-based control panel with HMI interface supporting recipe storage, run logging, and alarm history; configurable setpoints for vacuum level, feed flow rate, and distillate collection threshold
• Zero-holdup discharge valve and self-draining geometry ensure complete material evacuation without residue accumulation or cleaning validation challenges

Sample Compatibility & Compliance

The CE-30 accommodates aqueous extracts, ethanol/water mixtures, ethyl acetate solutions, and other low-to-medium polarity solvents commonly used in botanical extraction and API intermediate purification. Feed viscosity tolerance extends up to 5,000 cP at 40 °C, supported by variable-speed centrifugal recirculation pumps. All process contact surfaces meet ASME BPE-2022 surface finish and weld quality standards. The system is designed to support GLP and GMP documentation requirements: electronic audit trails are generated for all critical parameters (temperature, pressure, time, flow), and data export complies with FDA 21 CFR Part 11 formatting (CSV/Excel with digital signature metadata). It conforms to ISO 22000 hygiene principles and supports validation protocols aligned with EU Annex 15 and USP Analytical Instrument Qualification.

Software & Data Management

The embedded control software provides synchronized acquisition of 12+ process variables at 1 Hz sampling frequency, including absolute pressure (capacitance manometer), condensate mass (load-cell monitored collection vessel), and real-time pH (optional inline probe integration). Data is timestamped, encrypted at rest, and archived locally on industrial-grade SSD with redundant backup to network file shares via SMB 3.1.1. Users may configure automated report generation (PDF/HTML) containing summary statistics, deviation flags, and trend plots for regulatory submission packages. Remote monitoring is enabled via secure TLS 1.3 web interface accessible from validated enterprise networks—no cloud dependency or third-party telemetry.

Applications

• R&D-scale concentration of decoction concentrates, tinctures, and spray-dried pre-concentrates in traditional medicine research laboratories
• Process development for solvent-based purification of natural pigments (e.g., anthocyanins, curcuminoids) where thermal degradation must be minimized
• Recovery and reuse of ethanol, methanol, or acetone from chromatographic eluents in analytical chemistry support labs
• Concentration of enzyme-containing fermentation broths prior to lyophilization or ultrafiltration steps
• Validation studies for scale-up correlation between laboratory (CE-30) and production-scale (e.g., Nutsche-type or forced-circulation) concentrators

FAQ

What vacuum level range is supported, and how is it maintained?
The CE-30 integrates a two-stage liquid ring vacuum pump with automatic pressure modulation via adjustable throttle valve and feedback-controlled bypass loop. Stable operation is maintained between 5 and 50 mbar, with pressure stability ±1.5 mbar over 8-hour continuous runs.
Can the system handle viscous slurries or suspended solids?
It is optimized for clarified liquids and low-solids feeds (<0.5% w/w). For particulate-laden streams, optional pre-filtration (5–10 µm cartridge) or centrifugal clarification upstream is recommended to prevent tube fouling.
Is pH monitoring integrated or field-upgradable?
A DIN 19266-compliant pH port is standard; users may install certified inline pH electrodes (e.g., Hamilton Arc or Mettler Toledo InPro) with auto-calibration capability via the HMI.
What documentation is provided for IQ/OQ execution?
Factory acceptance test (FAT) reports, as-built P&IDs, material traceability certificates (MTRs), and a full URS-aligned qualification protocol package—including test scripts, pass/fail criteria, and blank execution records—are supplied with each unit.