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Planning for A Flexible Gas Processing Plant

Muhammad Saberi, Khairul Amilin (2009) Planning for A Flexible Gas Processing Plant. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The main focus ofplanning for aflexible gas processing plant production in this project is regarding demethanizer. The demethanizer is alarge stripping tower equipped with 40 twosided valve trays and 3chimney trays. It is also equipped with aconventional steam reboiler at the bottom, and three side pump around reboiler utilizing liquid draw offe from the chimney trays. Type ofthe boiler that was used as aheater was vertical thermosiphon reboiler. As ethane and heavier components are condensed during the cool down process, alarge portion of the methane component is also condensed from the feed gas. The demethanizer and its related equipment are designed to strip this methane from the feed to form the overhead sales gas. The exact composition ofthe overhead will contain more or less ethane and C02? depending on the feedstock and the operating mode. The overhead temperature is at -64°C while the pressure is 2400 kPaG. The base is at 38°C and about 2420 kPaG. The demethanizer has two products. Product sales gas from the tower overhead is heated in the Feed Gas Cooler No.2 (T-403) and No. 1(T-401) as in appendix 1, before going to the train of compressors. Ethane and heavier hydrocarbons from the tower bottom are pumped to deethanizer as afeed to Product Recovery Unit(PRU)

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Process Safety
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 22 Oct 2013 11:19
Last Modified: 22 Oct 2013 11:19
URI: http://utpedia.utp.edu.my/id/eprint/9233

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