Supercritical Ethanol Drying System

Supercritical Ethanol Drying System

Model: SFS-ES

The proposed SFS-ES is a high-temperature drying system for ethanol-wet gels and porous materials that tolerate the required thermal exposure. It combines a metal drying vessel, insulated heating, controlled fluid removal and closed solvent recovery. Unlike CO₂ drying after solvent exchange, this concept uses ethanol itself as the supercritical medium. It is intended for material-development studies in which drying shrinkage, structure retention and chemical changes are evaluated experimentally.

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FLOSN / PRODUCT FEATURES

Product Features

6 FEATURES

Non-stirred metal drying vessel and removable basket; mechanically retained head; insulated split furnace and heat shield; sample-zone and wall temperature measurement; pressure sensing and independent protective devices; closed solvent loading/drain interfaces; inerting and extraction interfaces; controlled discharge train; condenser, closed metal receiver and level monitoring; segregated PLC/HMI electrical module; cold-access lifting provision in concept B.

Direct Ethanol Route

Designed around high-temperature ethanol service rather than reusing a low-temperature CO₂ dryer specification.

Insulated Process Chamber

The heater, hot vessel and metallic heat shield are separated from routine touch surfaces.

Closed Solvent Recovery

A condenser and metal receiver are integrated with level and cooling-status monitoring.

Sample Basket Access

A removable basket supports small monoliths; expansion, drainage and circulation clearances remain part of fixture design.

Separated Controls

The operator interface is physically separated from the heated solvent compartment; final electrical protection follows the installation assessment.

Process and Quality Records

Batch records can be paired with before/after mass, dimensions and microscopy; the instrument does not directly certify pore preservation.

FLOSN / TECHNICAL PARAMETERS

Model & Parameters

SELECTED MODEL

CFD-SA500

Model-specific specifications
Chamber volume
520 mL
Operating pressure
0–2,200 psi
Power consumption
1,500 W
Exhaust flow rate
0–2 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
114.3 × 50.8 mm
Chamber dimensions · I.D. × depth (in)
4.5 × 2 in
Operating pressure · MPa
0–15.2 MPa
Maximum safe working pressure
2,500 psi (17.2 MPa)
Heating method
PTC electric heating / cartridge electric heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA1000

Model-specific specifications
Chamber volume
1,080 mL
Operating pressure
0–2,200 psi
Power consumption
1,500 W
Exhaust flow rate
0–2 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
165.1 × 50.8 mm
Chamber dimensions · I.D. × depth (in)
6.5 × 2 in
Operating pressure · MPa
0–15.2 MPa
Maximum safe working pressure
2,500 psi (17.2 MPa)
Heating method
Cartridge heater heating
Overall dimensions · W × D × H
Not specified
SELECTED MODEL

CFD-SA1800

Model-specific specifications
Chamber volume
1,860 mL
Operating pressure
0–2,200 psi
Power consumption
2,000 W
Exhaust flow rate
0–0.5 SLPM

Chamber & operation

Chamber dimensions · I.D. × depth (mm)
215.9 × 50.8 mm
Chamber dimensions · I.D. × depth (in)
8.5 × 2 in
Operating pressure · MPa
0–15.2 MPa
Maximum safe working pressure
2,500 psi (17.2 MPa)
Heating method
Cartridge heater heating
Overall dimensions · W × D × H
Not specified
Shared specifications · all models

Materials & pressure safety

Chamber material
SS316L
Optional materials
Hastelloy C276, Inconel 625, Monel 400, Titanium Grade 2, PTFE lining
Pressure safety system
Electronic pressure monitoring combined with mechanical over-pressure relief protection

Environment & utilities

Operating temperature range
−30 to +60 °C
Operating ambient humidity
20%–70% RH, non-condensing
Power supply
120 / 220 V AC, 50–60 Hz
CO₂ gas requirement
High-purity liquid CO₂ supply; recommended purity >99.9%

Cooling, control & filtration

Cooling system
Integrated closed-loop cooling; the internal chiller loop accelerates cooling and reduces CO₂ consumption
Control system
LCD touchscreen; semi-automated control with programmable timer operation and electronic sensor monitoring
Filtration system
Double T-Filter, Cat. No. 8785; two passes through 0.5 μm filters; >99.5% retention

Samples & chemical compatibility

Compatible sample types
Biological specimens, microscopy samples, hydrogels, aerogels, porous materials, polymers, and other structure-sensitive materials
Compatible solvents
CO₂-miscible solvents commonly used in sample preparation, including ethanol, acetone, methanol, and other laboratory solvents
Chemical compatibility warning
Strongly acidic, strongly alkaline, oxidizing, or highly toxic solvents require prior compatibility evaluation before use
Standard configuration & options

Standard configuration

  • High-pressure viewing window chamber
  • Integrated chamber illumination system
  • Integrated condensation and gas-liquid separation system
  • Non-mechanical CO₂ mixing and exchange system
  • Controlled slow filling and venting system
  • Precision vent flow meter
  • Standard stainless steel CO₂ supply line
  • Anti-static exhaust tubing
  • Replacement O-ring seal kit
  • Installation tool kit
  • User operation manual
  • Factory acceptance test report
  • Warranty and technical support

Optional configurations

  • Interchangeable sample holders
  • Custom sample chamber inserts
  • Magnetic stirring module
  • High-temperature / high-pressure chamber customization
  • Corrosion-resistant alloy chamber upgrade
  • Microscopy sample holder kit

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