Energy Saving through Modeling of Integrated Distillation Column (Side-Stripper) in Natural Gas Liquid Processing

CATEGORY: ENERGY EFFICIENCY 
Energy Saving through Modeling of Integrated Distillation Column (Side-Stripper) in Natural Gas Liquid Processing

Type	Journal Article
Author	Yasmin Syazwani Yusri
Author	Rohani Mohd. Zin
URL	http://www.scientific.net/AMM.699.822
Volume	699
Pages	822-827
Publication	Applied Mechanics and Materials
Date	11/2014
Abstract	In Natural Gas Liquid (NGL) recovery, distillation is the most common separation method. The productions of ethane, propane, butane and stabilized condensate are obtained through a series of conventional distillation columns, requiring massive amounts of energy, contributing more than 40% of overall plant energy. Authors focus on energy saving in natural gas liquid processing by comparing the integrated side-stripper column with the conventional separation trains at steady state using a commercial simulator, Aspen Plus HYSYS. Energy analysis from the study reveals that the integrated column arrangement which implement the side-stripper configuration achieved favorable result as it offers the highest percentage in energy reduction. Consequently, this can be linked to the reduction of operating cost for hot and cool duties and trim down the overall production cost for existing NGL recovery plant.