Sanjay K.S. Patel (건국대학교) | 한빛사논문 > 한빛사

한빛사논문

조회402

건국대학교

Bioresour. Technol., Volume 369, Feb 2023, 128427 | https://doi.org/10.1016/j.biortech.2022.128427 Integration of biogas derived from dark fermentation and anaerobic digestion of biowaste to enhance methanol production by methanotrophs

Sanjay K.S. Patel, Vipin C. Kalia, Jung-Kul Lee

Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea

Corresponding author : Jung-Kul Lee

Abstract

Biowaste-derived sugars or greenhouse gases, such as methane (CH₄) and carbon dioxide (CO₂), can be used to generate eco-friendly biofuels, such as hydrogen (H₂) or methanol. In the present study, enzyme-based rice straw (RS) hydrolysate was used to produce dark-fermentative (DF) biogas (H₂ and CO₂), which was subsequently integrated with biogas (CH₄ and CO₂) derived from anaerobic digestion (AD) to generate methanol via methanotrophs. First, DF of RS hydrolysate yielded 2.82 mol of H₂/mol of hexose. Second, the integration of biogas derived from DF and AD in the presence of CH₄ vectors yielded 13.8 mmol/L of methanol via methanotrophs. Moreover, under the repeated batch mode, 64.6 mmol/L of methanol was produced. This is the first report on the integration of biogas derived from AD and DF of biowaste to produce biomethanol. These findings may facilitate the development of a sustainable biowaste-based circular economy for producing biofuels.

논문정보

형식Research article
게재일2023년 02월 (BRIC 등록일 2023-02-17)
연구진국내 연구진
분야 생명과학 > 생물공학

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