Purification of wastewater digester biogas from siloxanes via adsorption-desorption with NaOH-reformed SiO2 adsorbent

Hyounduk Jung and Jongsoo Jurng

Renewable Energy, 2020, vol. 156, issue C, 459-468

Abstract: This study was performed in order to investigate the adsorption of siloxane for biogas treatment using a novel SiO2-based adsorbent and its regeneration. The siloxane adsorption capacity of the NaOH-modified SiO2 was significantly increased. At low temperature (25–50 °C), the siloxane (D5) adsorption capacity of the novel SiO2 adsorbent was 200 mg per g of adsorbent, which is approximately four times than that observed for silica gel or SiO2 prior to treatment with NaOH.

Keywords: Biogas purification; Siloxane; Adsorption-desorption; SiO2 adsorbent; NaOH-Reformed; Surface OH; Hydrogen bond (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:156:y:2020:i:c:p:459-468

DOI: 10.1016/j.renene.2020.03.189

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