Designing and Simulating a Natural Gas Dehydration Unit for Supplying a 350 MW Thermal Electric Power Plant

Authors: Mendogo RD , Fotsa RT , Dabole B , Mena AC , Kingni ST , Mendogo RD , Fotsa RT , Dabole B , Mena AC and Kingni ST

DOI: 10.23880/jenr-16000388

Volume 8, Issue 3

Abstract

The aim of this paper is to determine the required volume of dehydrated natural gas to supply a thermal electric power station with a capacity of 350 MW. Thanks to Aspen HYSYS process simulation software which enables the creation and implementation of dependable process for natural gas dehydration. Based on calculations, it is determined that a natural gas volume of 62.47 MMSCF per day is necessary to supply a power plant with a capacity of 350 MW. Considering economic and efficiency factors, the process of gas dehydration by absorption with tri-ethylene glycol (TEG) as a washing solvent for natural gas with a water content of 0.486% is discussed. The design and simulation process at the outlet of the dehydration unit results in gas with a water content of 0%, meeting the specifications (0-15 lb/MMSCFD). The overall investment cost is 1,225,275,290.8 USD, generating an income of 1,322,489,900 USD and a profit of 97,214,609.2 USD.

Keywords: Design; Simulation; Natural Gas Dehydration Unit; Tri-Ethylene Glycol; Thermal Power Plant; Economical Evaluation

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