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Introducing a Novel Method for Heat Integration of Natural Gas Sweetening Process Based on Reducing TAC, Energy Consumption, CO2 Emission, and Exergy Loss

Publish Year: 1403
Type: Journal paper
Language: English
View: 49

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Document National Code:

JR_CPD-3-1_006

Index date: 20 December 2024

Introducing a Novel Method for Heat Integration of Natural Gas Sweetening Process Based on Reducing TAC, Energy Consumption, CO2 Emission, and Exergy Loss abstract

The main problem is the high energy consumption in the gas sweetening process, especially in the distillation column, which makes it necessary to optimize the energy consumption of this process. A new method was used in this study for heat integration of natural gas sweetening process. For this purpose, the liquid and vapor streams leave the absorption column entered the upper and lower section of the stripper column, respectively. The feed to the stripper column was preheated by the bottom product the stripper column. Liquid and vapor streams reduce hot and cold utilities of the distillation column, and feed preheating reduces the heating duty of the reboiler. The recovered solvent was then precooled by sweet gas. According to the results, the proposed method reduced energy consumption of the basic process by 67%. Based on the results obtained from calculating the amount of CO2 emission, the amount of emission of this poisonous gas decreased by approximately 70%. Moreover, proposed process could reduce total annual cost (TAC) of the basic process in the maximum value of 66.76%. This reduction in TAC is due to the reduction of operating cost and capital cost by 66.77 and 66.66% respectively. Also, in comparison with the basic process, exergy loss of the novel process decreased by 66.5%.

Introducing a Novel Method for Heat Integration of Natural Gas Sweetening Process Based on Reducing TAC, Energy Consumption, CO2 Emission, and Exergy Loss Keywords:

Introducing a Novel Method for Heat Integration of Natural Gas Sweetening Process Based on Reducing TAC, Energy Consumption, CO2 Emission, and Exergy Loss authors

Mohammad Javad Zarkesh

school of Chemical and Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran

Shahab Taleghani

School of Chemical engineering, Tarbiat Modares university, Tehran, Iran

Ehsan Fatehi

School of Chemical Engineering, University of Tehran, Tehran, Iran

Parisa sadat Fatemi

School of Chemical and Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran

Mahshid Moradi

Department of Chemical Engineering,Amirkabir University of Technology,Tehran,Iran

Mahsa Majidi

School of Chemical Engineering, Tarbiat Modares University, Tehran, Iran