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Development and Characterization of Modified Carbon Nanotubes For C02 Capture Adsorption Application

Hasnan, Hasifi (2012) Development and Characterization of Modified Carbon Nanotubes For C02 Capture Adsorption Application. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Adsorption of COz via carbon nanotube (CNTs) recently has been investigated and various studies have been gone through especially between the temperature range of 0- 2000C have been made in order to observe its performance as a C02 adsorbent. It is proven that CNTs can absorbed nearly twice of the volume of C02 as compared to activated carbon (Cinke et al, 2003). The physicochemical properties of CNTs ware changed after the modification, which makes CNTs, adsorb more C02 gases. The adsorption capacities of C02 via CNTs and modified CNTs (APTS) decreased with temperature indicating the exothermic nature of adsorption process and increased with water content in air at 0---7%. The mechanism of C02 adsorption on CNTs and modified CNTs (APTS) appears mainly attributable to physical force regardless of temperature change, which makes regeneration of spent CNTs at a relatively low temperature become feasible. The modified CNTs (APTS) have good adsorption performance of C02 at 20°C as compared to many types of modified carbon or silica adsorbents (Lu et al, 2008). Throughout the project, the performance of CNTs towards the C02 adsorption will be enhanced due to the difference in the acid treatment which leads to the attachment of different ftmctional group.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Reactor Technology
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 24 Oct 2013 14:50
Last Modified: 25 Jan 2017 09:40
URI: http://utpedia.utp.edu.my/id/eprint/9721

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