Membrane technologies
Membrane separation can be divided into two categories according to the type of separated substance:
- Membrane separation of gases/vapors
- Separation and recovery of hydrocarbons
- Solvent-resistant flat membranes for use in gas/vapor separation
- Hydrogen recovery and purification (H2)
- Hollow fiber membranes for gas purification and H2 recovery and enrichment
- CO2 separation and enrichment
- Flat sheet membranes for gas purification and carbon capture
- Separation and recovery of hydrocarbons
- Membrane separation of organic liquid mixtures
- Nanofiltration of organic solvents (OSN_ Organic Solvent Nanofiltration)
- Solvent-resistant flat membranes for use in gas/vapor separation and nanofiltration of organic solvents (OSN).
- Pervaporation
- Solvent-resistant flat membranes for pervaporation, i.e. selective separation of water or methanol
- Nanofiltration of organic solvents (OSN_ Organic Solvent Nanofiltration)
If a higher level of separation is required, secondary separation technologies can be used:
- Pressure swing adsorption (PSA)
- Temperature swing adsorption
- Absorption
- Distillation
- Condensation (liquefaction)
- Thermal or catalytic oxidation
Retrofit of Existing Active Carbon Recovery Systems
- in case more capacity is required e.g. due to increased transshipment
- Performance loss of the carbon beds due to accumulation of heavy or aromatic hydrocarbons or contamination by impurities e.g. sulphuric components
- The performance of the existing unit is not efficient enough to meet the required emission level
- New product vapours have a negative impact on the active carbon or cannot be adsorbed and must be separated before entering the adsorbers
Application of membrane technology for gas recovery:
- hydrocarbon vapors
- hydrocarbon vapors in shipping
- aromatic substances
- gas tank vapors
- PE production process
- ethylene C2H4 recovery
- nitrogen N2 recovery
- PP production process
- propylene C3H6 recovery
- nitrogen N2 recovery
- EO or EG production process
- ethylene C2H4 recovery
- PVC and rubber production process
- monomer regeneration
- recovery of sealing gases from shaft seals
- methanol and monoxide production process (methane pyrolysis)
- hydrogen H2 recovery
- biorefinery operations
- hydrocarbon recovery
- Hydrogen H2 recovery
- Methane production process
- Hydrogen H2 recovery
- CO2 recovery
- CO2 recovery and capture
Application of membrane technology for the recovery of liquid mixtures using OSN nanofiltration:
- biofuel processing
- oil and LNG processing
- waste oil processing
- Recovery of homogeneous catalysts
- Concentration of mother liquor
- Decolorization and purification of essential oils
- Decolorization and purification of hemp extracts
- Purification of proteins or API active pharmaceutical ingredients
- Purification and recovery of solvents
Application of membrane technology for the recovery of liquid mixtures using pervaporation:
- ethanol dehydration (dehydration unit)
- bioethanol dehydration (dehydration unit)
- isopropanol dehydration (dehydration unit)
- dehydration of organic solvents (dehydration unit)
- dehydration of other substances: C2-C5 alcohols, cyclohexanol, ketones (acetone, MEK, MIBK), ethers (methyl acetate MeAc, ethyl acetate EtAc, butyl acetate BuAc, acetonitrile, trimethylborate)
