HengaoDe HAD-S822 Benchtop Crude Oil Electro-Dehydrator (500–15,000 mL Capacity)

Overview

The HengaoDe HAD-S822 Benchtop Crude Oil Electro-Dehydrator is an engineered solution for laboratory-scale and pilot-plant dehydration of water-in-oil emulsions. It operates on the principle of controlled thermal-vapor separation under regulated pressure—leveraging differential vapor pressures of water and light hydrocarbon fractions in crude oil at elevated temperatures. Unlike conventional gravity settling or centrifugal methods, the HAD-S822 integrates real-time pressure regulation and precision temperature control to accelerate phase separation while minimizing thermal degradation and volatile loss. The system is designed for reproducible dehydration of crude samples containing up to 50% water by volume, achieving residual water content below 0.2 wt% within four hours. Its modular architecture supports scalable operation across volumetric ranges—from 500 mL screening batches to 15 L process validation runs—making it suitable for upstream R&D, refinery QC labs, and third-party testing facilities complying with ASTM D4007, ISO 9029, and API RP 45 standards.

Key Features

• Programmable dual-parameter control: independent setpoints for temperature (50–200 °C) and working pressure (0–0.5 MPa), with automatic cut-off at preset safety thresholds
• Stainless steel pressure-rated vessel (1.6 MPa design, ASME Section VIII Div. 1 compliant construction)
• Integrated condensation loop with passive reflux management and vacuum-assisted vapor recirculation
• Digital PID temperature controller with ±0.5 °C stability and real-time logging capability via optional RS485 interface
• Over-temperature and over-pressure interlocks, emergency power disconnect, and visual/audible alarm indicators
• Modular heating elements (1–4 kW total) matched to vessel volume for uniform thermal distribution and energy efficiency
• Front-panel access to calibration menus, diagnostic codes, and maintenance logs per GLP traceability requirements

Sample Compatibility & Compliance

The HAD-S822 accommodates a broad range of crude types—including paraffinic, naphthenic, and heavy sour crudes—as well as synthetic emulsions stabilized with demulsifier formulations. Its operating envelope ensures compatibility with API gravity ranges from 10° to 45° API and TAN values up to 5.0 mg KOH/g. All wetted components meet NACE MR0175/ISO 15156 requirements for sour service environments. The unit conforms to IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emission) for electromagnetic compatibility. Documentation includes factory calibration certificates traceable to NIST standards, full material test reports (MTRs) for vessel and piping, and a CE Declaration of Conformity (2014/30/EU EMC Directive and 2014/68/EU PED).

Software & Data Management

While the base model features standalone analog/digital controls, optional firmware upgrade enables USB data export of time-stamped temperature, pressure, and runtime logs in CSV format. The embedded controller supports audit trail functionality compliant with FDA 21 CFR Part 11 when paired with external PC-based acquisition software (e.g., LabVIEW or custom SCADA). All parameter changes are timestamped and user-ID logged; historical settings are retained for ≥10,000 cycles. Firmware updates are performed via secure encrypted bootloader protocol with version rollback capability. No cloud connectivity or remote access is enabled by default—ensuring data sovereignty and network isolation in regulated environments.

Applications

• Optimization of chemical demulsifier dosage and residence time in upstream field trials
• Refinery feedstock qualification per ASTM D95 and ISO 3733 water content specifications
• Accelerated aging studies evaluating emulsion stability under simulated transport/storage conditions
• Validation of electrostatic coalescer performance using representative lab-scale emulsions
• Training platform for petroleum engineering students on multiphase separation thermodynamics
• Supporting ISO/IEC 17025 accredited testing laboratories requiring documented method validation records

FAQ

What safety certifications does the HAD-S822 hold?

The unit carries CE marking for electromagnetic compatibility (EMC) and pressure equipment (PED), along with RoHS 2011/65/EU compliance documentation. Vessel certification includes ASME U-Stamp equivalency verification through third-party inspection (TÜV SÜD Report No. TUV-DE-XXXXX).
Can the HAD-S822 be integrated into an automated lab workflow?

Yes—via optional RS485 Modbus RTU interface (addressable slave mode), enabling integration with LIMS, PLC-controlled test benches, or centralized monitoring systems. Protocol documentation and register maps are provided upon request.
Is calibration traceable to international standards?

All factory calibrations are performed using Fluke 729 auto-calibrators and NIST-traceable reference sensors. Calibration certificates include uncertainty budgets per ISO/IEC 17025 Annex A.3 and are valid for 12 months under normal use.
What maintenance intervals are recommended?

Heating element resistance checks every 500 operating hours; pressure relief valve functional test every 6 months; condenser coil descaling with citric acid solution after each 10 high-salinity crude runs; full gasket replacement recommended annually or after 2,000 cycles.
Does the system support hazardous area installation?

The standard configuration is rated for Zone 2 / Class I Division 2 environments. Explosion-proof variants (ATEX II 2G Ex db IIB T4 Gb / UL Class I Div 2 Groups A–D) are available as custom builds with certified motorized valves and intrinsically safe controllers.