NiTech Solutions DN15 HP Pilot-Scale Continuous Crystallizer
| Origin | UK |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | DN 15 HP |
| Price Range | USD 108,000 – 135,000 (FOB UK) |
| Volume | 3.5 L |
| Tube Length | 20 m |
| Residence Time | 90 min @ 40 mL/min |
| Dimensions (L×W×H) | 2050 mm × 1000 mm × 1155 mm |
| Construction Materials | Borosilicate Glass, SS316, Hastelloy C-276 |
| Temperature Range | 0 °C to 150 °C |
| Mixing Mechanism | Continuous Oscillatory Baffled Flow (OBF) |
| Operating Pressure | 0–10.0 bar (customizable up to 25.0 bar) |
Overview
The NiTech Solutions DN15 HP Pilot-Scale Continuous Crystallizer is an engineered oscillatory baffled flow (OBF) reactor system designed for the controlled, scalable, and reproducible execution of continuous crystallization processes under elevated pressure and temperature conditions. Unlike conventional batch or stirred-tank crystallizers, the DN15 HP leverages a precisely tuned series of equally spaced, rigid baffles within a coiled or straight tube geometry to induce uniform, low-shear fluid motion—enabling near-plug-flow residence time distribution while maintaining high radial mixing. This hydrodynamic architecture eliminates dead zones and mitigates localized supersaturation gradients, thereby promoting nucleation control, narrow crystal size distribution (CSD), and reduced agglomeration risk. The system operates on the principle of controlled supersaturation generation via precise temperature ramping, antisolvent addition, or reactive crystallization pathways—making it particularly suitable for thermally sensitive APIs, polymorphic screening, and metastable zone width (MSZW) mapping in compliance with ICH Q5A and Q5C guidelines.
Key Features
- Oscillatory Baffled Flow (OBF) design ensures consistent residence time distribution (RTD) with Péclet numbers >100, enabling robust scale-up from lab to pilot without re-optimization.
- Modular construction with interchangeable sections: borosilicate glass viewing ports for real-time process observation; SS316 wetted parts for general chemical compatibility; Hastelloy C-276 tubing and fittings for aggressive media (e.g., HCl, HF-containing streams, oxidizing acids).
- Integrated jacketed thermal management supporting rapid heating/cooling rates (±0.1 °C/min stability) across the full 0–150 °C range, with optional cryogenic extension to –20 °C.
- Pressure-rated configuration certified to PED 2014/68/EU for operation up to 10.0 bar g (ASME B31.3 compliant piping; customizable to 25.0 bar g with reinforced flange sets and rupture disc protection).
- Plug-and-play interface for integration with upstream continuous reactors (e.g., DN10 microreactor modules) and downstream continuous centrifugal separators or membrane filters—supporting end-to-end continuous manufacturing per FDA’s Guidance for Industry: Continuous Manufacturing of Drug Substances and Products (2023).
Sample Compatibility & Compliance
The DN15 HP accommodates heterogeneous multiphase systems including slurries (up to 30 vol% solids), gas-liquid mixtures (e.g., hydrogenation, CO₂-mediated carbonation), and viscous organic-aqueous solutions (η < 500 mPa·s). It complies with ISO 14001 environmental management requirements through solvent reduction capabilities (typically 40–60% less than batch equivalents) and meets ATEX Zone 1 certification standards when equipped with intrinsically safe instrumentation packages. All control logic and data logging conform to 21 CFR Part 11 Annex 11 requirements, featuring electronic signatures, audit trails, and role-based access control. Documentation packages include IQ/OQ protocols aligned with ASTM E2500-13 and EU GMP Annex 15 validation principles.
Software & Data Management
Control is executed via NiTech’s proprietary CrystalView™ v4.2 software suite, running on a Windows 10 IoT Enterprise platform with deterministic real-time kernel. The system acquires synchronized data streams from up to 16 channels—including inline Raman spectroscopy (via fiber-coupled probe), focused beam reflectance measurement (FBRM), and digital particle tracking velocimetry (DPTV)—with timestamp resolution ≤10 ms. All raw sensor outputs are stored in HDF5 format with embedded metadata (unit definitions, calibration history, operator ID), enabling traceability and automated reporting per ALCOA+ principles. Export modules support direct integration into LIMS (LabVantage, Thermo Fisher SampleManager) and MES platforms (Siemens Opcenter, Rockwell FactoryTalk).
Applications
- Pharmaceutical: Polymorph selection, amorphous-to-crystalline transition studies, chiral resolution via preferential crystallization, and continuous antisolvent crystallization of high-potency actives (HPAPIs).
- Fine Chemicals: Multi-step telescoped synthesis–crystallization sequences (e.g., nitration → reduction → crystallization), minimizing isolation intermediates and improving overall mass intensity.
- Agrochemicals: Controlled crystallization of photolabile compounds under inert atmosphere; granulation-free product conditioning for wettable powders.
- Food & Nutrition: Continuous lactose crystallization in dairy streams; controlled β-carotene nanoparticle formation via flash nano-precipitation.
- Energy Materials: Lithium iron phosphate (LiFePO₄) cathode precursor crystallization with in situ pH and redox potential monitoring.
FAQ
What distinguishes oscillatory baffled flow from traditional plug-flow or CSTR configurations?
OBF achieves superior mixing homogeneity at low Reynolds numbers (Re < 100) without impellers or rotating parts—reducing mechanical stress on fragile crystals and eliminating seal-related contamination risks common in pressurized CSTRs.
Can the DN15 HP be validated for GMP manufacturing?
Yes. Full qualification documentation—including Design Qualification (DQ), Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) templates—is provided. System architecture supports periodic requalification per ICH Q7 Annex 19.
Is remote monitoring and predictive maintenance supported?
CrystalView™ includes OPC UA server functionality and MQTT endpoints for cloud telemetry. Predictive diagnostics use vibration spectral analysis (FFT) and thermal gradient trending to forecast bearing wear or heat exchanger fouling ≥72 hours in advance.
How does scale-up from DN10 to DN15 HP preserve crystal morphology?
Geometric similarity (constant baffle spacing-to-tube diameter ratio) and dynamic similarity (identical Strouhal and oscillation Reynolds numbers) ensure invariant dimensionless mixing energy input—validated across 5 pilot campaigns with API candidates showing <±5% variation in Dv50 and span.
Are custom material-of-construction variants available beyond Hastelloy C-276?
Yes. Titanium Grade 7 (Ti-0.15Pd), Inconel 625, and fluoropolymer-lined stainless steel configurations are available upon request, subject to ASME Section VIII Div. 1 pressure vessel review.
