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Treatment of Ethane-Propane in a Petrochemical Complex

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Author(s): Apoorva Vinayak Rudra

Journal: International Journal of Engineering Research
ISSN 2319-6890

Volume: 2;
Issue: 1;
Start page: 18;
Date: 2013;
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Keywords: Cryogenic | DEA | Petroleum | Sweetened Gas

ABSTRACT
A Petrochemical complex is responsible for producing various petrochemicals. It is made up ofvarious fragments that work in synchronization witheach other. This paper focuses on treatment of ethane-propane in a petrochemical complex afterrecovery from natural gas. Some of the important fragments are the Gas Sweetening Unit (GSU), the(C2C3) Recovery Unit, and the Gas Cracker Unit (GCU). The GSU uses a solvent for removing acidgases like CO2 in the natural gas by chemicalabsorption. First counter current absorption of the gas with a solvent like DEA takes place and then its further treatment in the regenerator column tostrip off the CO2. The ‘sweetened’ gas from the GSUforms the feedstock to the C2C3 Recovery Unit where cryogenic conditions prevail and if the CO2 componentof the gas is not removed, it will freeze at such lowtemperatures. The ethane-propane is cracked in theGCU
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