TY - JOUR AU - Wan Zainal, Wan Nurul Huda AU - Tan, Soon Huat AU - Ahmad, Mohd Azmier PY - 2021/01/01 Y2 - 2024/03/29 TI - Controlled Carbonization Heating Rate for Enhancing CO2 Separation Based on Single Gas Studies JF - Periodica Polytechnica Chemical Engineering JA - Period. Polytech. Chem. Eng. VL - 65 IS - 1 SE - DO - 10.3311/PPch.14397 UR - https://pp.bme.hu/ch/article/view/14397 SP - 97-104 AB - <p>Concerns about the impact of greenhouse gas have driven the development of new separation technology to meet CO<sub>2</sub> emission reduction targets. Membrane-based technologies using carbon membranes that are able to separate CO<sub>2</sub> efficiently appears to be a competitive method. This research was focused on the development of carbon membranes derived from polymer blend of polyetherimide and polyethylene glycol to separate CO<sub>2</sub> rendering it suitable to be used in many applications such as landfill gas purification, CO<sub>2</sub> removal from natural gas or flue gas streams. Carbonization process was conducted at temperature of 923 K and 2 h of soaking time. To enhance membrane separation properties, pore structure was tailored by varying the carbonization heating rates to 1, 3, 5, and 7 K / min. The effect of carbonization heating rate on the separation performance was investigated by single gas permeabilities using CO<sub>2</sub> , N<sub>2</sub> , and CH<sub>4</sub> at room temperature. Carbonization heating rate of 1 K / min produced carbon membrane with the most CO<sub>2 </sub>/ N<sub>2</sub> and CO<sub>2</sub> / CH<sub>4</sub> selectivity of 38 and 64, respectively, with the CO<sub>2</sub> permeability of 211 barrer. Therefore, carbonization needs to be carried out at sufficiently slow heating rates to avoid significant loss of selectivity of the derived carbon membranes.</p> ER -