Grundos Cometas

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SiC CERAMIC MEMBRANE DEOILING APPLICATIONS
Confidential
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Different types of Ceramic membranes

• Oxides Alumina-, Titania- and Zirconia oxides
• Non-oxides carbides, borides, nitrides
• Composites combinations of oxides and
  non-oxides.
• Ceramic-Supported Polymer (CSP).
• Long Chain Polymer Grafted to Ceramic

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Silicon Carbide Membranes

• Can be used for MF and UF
• Membranes are made of Silicon Carbide which
  provides
• High flux rate
• Low cost
• High volume modules
• High resistant material
• High durability

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SiC Membrane Product Info

• Asymmetric membrane principle (pore size changes
  through membrane matrix)
• Layer thickness can be controlled
• Trans Membrane Pressure can be controlled with
  variable membrane thickness

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SiC Membrane Product Info

• Available pore sizes
• 50 µm 33 µm 23µm 6 µm 1.5 µm 1 µm 0.8 µm
  0.3 µm 0.08 µm 0.02 µm
• Porosity 45-50
• Max temperature 1000C
• Approximately 1 m2 / litre filter volume/ kg

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SiC Membrane Characteristics
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CoMem product info

• Silicon Carbide
• Strong membrane
• Thermal and electric conductive
• Highly hydrofilic
• Fired at 2400C
• High thermal robustness
• High Chemical durability
• Environmental safe
• Easy to clean
• Non abrasive material

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SiC Product Info

• High Flux Rates
• SiC charateristics
• No liquid phase sintering of particles
• Only sublimation of fine grains
• Up to 10x Higher flux Compared to alternative
  ceramic membranes on the market in bench mark test

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Close up pictures of 2 layer membranes
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SEM picture of 2 layer membrane
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Oil Water separation with SiC Ceramic Membranes
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Oil-Water Separation with SiC Membranes Initial
Testing

• Initial Testing Conducted to Determine if SiC on
  SiC Membranes Can Be Used For Filtration of
  Oil/Water Mixtures
• Oil was mixed with water to create a mixture with
  oil concentration of 8400 mg/L
• Three membranes were used with differing surface
  Characteristics
• Membranes were tested at varying trans-membrane
  pressures ranging from 0.25 to 1.5 bar
• Operating Temperature 20 to 45oC

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Test ResultsInlet gas-oil concentration 1
(v/v) 8400 mg/l
No fouling observed for 8 hours. No increase
of gas-oil in permeate observed. No decrease in
flux observed during test duration
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Oil Water separation with SiC Membranes
Initial Testing

• Test Results one pass through CoMem
• Dispersed oil removal 99.6
• Dissolved oil removal 90
• No fouling observed for 8 hour test duration.
• No significant increase of gas-oil in permeate
  observed with increase in TMP within test range.
• High flux possible up to 700 lmh _at_0.78 Bar
  (11.24 psi)

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Proposed FilterBoxx De-Oiling Process
Oil Recovery
Concentrate
Proprietary Hydrodynamic Bulk De-Oiling
Inlet Feed

• Surge Tank

Recycle
Ceramic Membrane De-Oiling
Permeate
Membrane Feed
Back Pulse
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Pilot Plant Available

• FilterBoxx Has Ceramic Membrane Pilot Plant
  Available
• 100 m3/day Flow Rate (Additional Membranes Can Be
  Added For Higher Flow)
• Fully Self-Contained Unit (Skid Mounted/Building
  Enclosure)
• Looking for Industry Partner for Demonstration
  and Evaluation Pilot Programs