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Site Integration of LNG Processes - Cold Recovery from Scrub Column Bottoms

Gopinadhan, Vimal (2007) Site Integration of LNG Processes - Cold Recovery from Scrub Column Bottoms. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

The objective of this project is to perform a site integration study on the Liquefied Natural Gas (LNG) process in the third Malaysia Liquefied Natural Gas (MLNG) plant and therefore to propose a new initiative to enhance energy recovery in order to maximize production of LNG as well as Liquid Petroleum Gas (LPG) as a byproduct in the gas business. Site integration study would help to optimize utilization of energy for maximum production of LNG as well as LPG. A basic heat integration study was carried out, and it was realized that the third plant was already highly integrated in design. Since there was not much room to improve on the refrigeration cycle, opportunities on processto- process heat exchange was explored. The selected initiative was based on the concepts of cold recovery, whereby the cold stream from the scrub column bottoms in the liquefaction process was used as a base for heat removal from the treated dry natural gas stream. This heat exchange was to take place before the heat removal from treated dry natural gas stream into the propane circuit at a high-pressure stage. This would require an installation and operation of a new process-to-process heat exchanger.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 23 Jan 2015 11:46
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/14461

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