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|Title:||NATURAL GAS UPGRADING - EXPLORING ENERGY EFFICIENT ALTERNATIVES||Authors:||SURYA EFFENDY||Keywords:||Pressure Swing Adsorption, Natural Gas Upgrading, Nitrogen Rejection, Optimization, Carbon Molecular Sieve, Techno-Economic Analysis||Issue Date:||15-Aug-2017||Citation:||SURYA EFFENDY (2017-08-15). NATURAL GAS UPGRADING - EXPLORING ENERGY EFFICIENT ALTERNATIVES. ScholarBank@NUS Repository.||Abstract:||In the present study, the use of pressure-vacuum swing adsorption (PVSA) in place of cryogenic distillation for nitrogen rejection from natural gas is considered. The PVSA unit is capable of withstanding relatively high amounts of moisture, carbon dioxide, and mercury, and thus do not suffer from the drawbacks of the cryogenic distillation column. The use of the PVSA unit allows the surrounding processes to be restructured. The monoethanolamine solvent of the acid gas removal unit may be replaced with dimethylethanolamine, which allows for selective removal of hydrogen sulphide over carbon dioxide. This decreases the size of the acid gas removal unit at the expense of higher carbon dioxide contamination, which can be tolerated by the PVSA unit.||URI:||http://scholarbank.nus.edu.sg/handle/10635/138224|
|Appears in Collections:||Master's Theses (Open)|
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