Silcarbon - Molecular Sieves
Silcarbon molecular sieves are synthetically made zeolites with a defined pore structure. The molecular sieves have uniform pore diameters, which are in the scale of the pore diameters of molecules. These pore systems provide the molecular sieves with the possibility of separating bigger and smaller molecules. In addition, the molecular sieves are also used for the material change with the help of adsorptive and catalytic processes.
The following molecular sieves can be provided in standard sizes of 1.6 – 2.5 mm and 2 – 5 mm:
- Silcarbon MS3A: pore width 3 Angstrom
- Silcarbon MS4A: pore width 4 Angstrom
- Silcarbon MS5A: pore width 5 Angstrom
- Silcarbon MS9A: pore width 9 Angstrom
Silcarbon molecular sieves are packed normally in drums of net 216 liters / 140 kg or in big bags of 400 – 900 kg. Silcarbon MS3A is mainly used for drying gases, polar liquids, as e.g. alcohols and simply polymerizable hydrocarbons like e.g., ethylene, propylene, acetylene and butadiene. Silcarbon MS4A is primarily used for drying technical gases and noble gases, as e.g. H2, N2, He and Ar as well as for drying organic liquids and liquid gas, as e.g. solvents, oils, gasoline and air. MS4A is regenerated at temperatures between 200°C – 300°C (450°C should not be exceeded) or by decreasing pressure and/or using a purge gas.
Silcarbon MS5A is mainly used for drying and desulfurization of natural gas, for producing vacuum in thermo containers and sorption pumps, for producing protective gases, for removing carbon dioxide and for separating paraffin from cyclic hydrocarbons. Furthermore, Silcarbon MS5A is used for the selective adsorption and separation of polar molecules from less polar molecules. It is regenerated at temperatures between 200°C – 350°C (450°C must not be exceeded) or by decreasing pressure and/or using a purge gas.
Silcarbon MS9A is primarily used for removing trace impurities in air and gases. In addition, Silcarbon MS9A is used for the desulfurization of natural gas and other liquids, especially for removing mercaptanes. Another important area of application is the cryogenic air decomposition. Furthermore, Silcarbon MS9A is used for the warmth / cold storage in solar energy production. It is regenerated at temperatures between 200°C – 300°C (450°C should not be exceeded) or by decreasing pressure and/or using a purge gas.