CO 2 Absorption from Biogas Using Piperazine-Promoted 2-Amino-2-methyl-1-propanol: Process Performance in a Packed Column

Viga Rajiman, Hairul Nazirah Abdul Halim, Azmi Mohd Shariff, Muhammad Zubair Shahid, Abdulhalim Shah Maulud, Kok Keong Lau and Lian See Tan
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Viga Rajiman: Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Arau 02600, Perlis, Malaysia
Hairul Nazirah Abdul Halim: Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Arau 02600, Perlis, Malaysia
Azmi Mohd Shariff: Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
Muhammad Zubair Shahid: Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
Abdulhalim Shah Maulud: Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
Kok Keong Lau: Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
Lian See Tan: Department of Chemical and Environmental Engineering (CHEE), Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia (UTM), Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Wilayah Persekutuan Kuala Lumpur, Malaysia

Sustainability, 2022, vol. 14, issue 12, 1-22

Abstract: In this work, CO 2 absorption from simulated biogas is investigated using different blends of a PZ + AMP solution in an absorption system at CO 2 partial pressures ranging between 20 and 110 kPa. The collected data were presented as CO 2 removal profiles along the packed column and were evaluated in terms of CO 2 removal efficiency (%) and average overall volumetric mass transfer coefficient in the gas phase ( K G a v ¯ ). An increased PZ concentration in the AMP solution was found to significantly increase the CO 2 removal efficiency and K G a v ¯ values. It was observed that, when conducted at different CO 2 partial pressures, gas and liquid flow rates, and chemical concentrations, the L a m i n e / G C O 2 ratio strongly influenced the process behaviour in the packed column. Additionally, the optimal inlet liquid temperature was observed to be 35 ± 2 °C in this study.

Keywords: CO 2 capture; CO 2 removal; chemical absorption; amine-based solvent; biogas upgrading applications (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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