CO2 Absorption from Biogas by Glycerol: Conducted in Semi-Batch Bubble Column

Quality in Research: International Symposium on Materials, Metallurgy, and Chemical Engineering

材料科学;冶金学;化学工业

Lestari, Pratiwi Puji^1 ; Mindaryani, Aswati^1 ; Wirawan, S.K.^1

Department of Chemical Engineering, Universitas Gadjah Mada, Yogyakarta

55281, Indonesia^1

关键词: CO2 absorption;    Henry constants;    Operating parameters;    Overall mass transfer coefficient;    Rate of absorptions;    Renewable energy source;    Semi-batch bubble columns;    Superficial gas velocities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/316/1/012065/pdf
DOI  :  10.1088/1757-899X/316/1/012065

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Biogas is a renewable energy source that has been developed recently. The main contents of Biogas itself are Methane and carbon dioxide (CO2) where Methane is the main component of biogas with CO2as the highest impurities. The quality of biogas depends on the CO2content, the lower CO2levels, the higher biogas quality. Absorption is one of the methods to reduce CO2level. The selections of absorbent and appropriate operating parameters are important factors in the CO2absorption from biogas. This study aimed to find out the design parameters for CO2absorption using glycerol that represented by the overall mass transfer coefficient (KLa) and Henry's constant (H). This study was conducted in semi-batch bubble column. Mixed gas was contacted with glycerol in a bubble column. The concentration of CO2in the feed gas inlet and outlet columns were analysed by Gas Chromatograph. The variables observed in this study were superficial gas velocity and temperatures. The results showed that higher superficial gas velocity and lower temperature increased the rate of absorption process and the amount of CO2absorbed.