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MICROWAVE-ASSISTED SYNTHESIS AND CHARACTERIZATION OF COVALENT ORGANIC POLYMER ADSORBENT FOR EFFICIENT C02 CAPTURE

YAQUB, SANA (2016) MICROWAVE-ASSISTED SYNTHESIS AND CHARACTERIZATION OF COVALENT ORGANIC POLYMER ADSORBENT FOR EFFICIENT C02 CAPTURE. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

Recent advancement in CO2 capture technology showed a promising trend in the development of covalent organic polymer (COP) adsorbent for CO2 capture. Although the COP adsorbent is very robust with high CO2 uptake, it suffers a major drawback of long synthesis time. Thus, this study investigates the possibility of reducing the synthesis time via the application of microwave reaction system while maintaining the desired characteristics of the covalent organic polymer adsorbent. Here a series of COP-4 adsorbents (COP-4A, B, C, D, and E) are synthesized at various synthesis temperature and synthesis time. Initial findings showed that microwave method has successfully synthesised the COP-4B adsorbent within 4 hours, thus reducing the synthesis time from 12 hours to 4 hours. Greater reduction in synthesis time was observed at elevated synthesis temperatures. The characterisation results of these COP-4 adsorbents showed strong agreement with reported literature. The highest BET surface area of 1461 m2 g"1 for COP-4A is achieved by microwave heating, which leads to the highest C02 uptake. The high hydrothermal stability of >600 °C of COP-4 adsorbent made them an attractive adsorbent for CO2 capture from moist natural gas stream The adsorption properties of these COPs for CO2 and CH4 at 1 bar up to 50 bar are also studied. The C02 uptake ofCOP-4B reaches 69.4 mg g"1 and 856.87 mg g"1 at 1 and 50 bar respectively, which is higher than the reported CO2 uptakes.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Chemical Engineering - Reactor Technology
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 24 Sep 2021 14:51
Last Modified: 24 Sep 2021 14:51
URI: http://utpedia.utp.edu.my/id/eprint/21885

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