Selecting carrier material for efficient biomethanation of industrial biogas-CO2 in a trickle-bed reactor
نویسندگان
چکیده
Biogas upgrading via biomethanation of renewable H2 and the CO2 in biogas poses a potential key technology decarbonized energy system. This study uses methanogenic trickle-bed reactor for raw from an industrial anaerobic digester to natural gas-grade biomethane through ex situ biomethanation. The carrier material comprises critical design parameter reactors by supporting catalytic biofilm thereby interfacial area mass transfer. present applied abiotic transfer-based screening six different types identify candidate that can facilitate efficient transfer reactor. included gas-liquid experiments air-water system addition characterizations carriers’ surface area, dynamic liquid hold-up volumes, external porosities. showed coefficient is highly influenced type cannot be predicted solely differences area. led selection crushed clay particles, whose application biomethanation-based was examined. particles facilitated apparent volumetric 10 min?1, enabling CH4 production rates up 6.1 L · L?1 d?1 more than 99 % conversion over 30 days continuous operation, where after accumulation metabolic water packed bed impaired Apart adverse effect accumulation, there no indication maximum rate reached, demonstrating selected material’s upgrading.
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ژورنال
عنوان ژورنال: Journal of CO2 utilization
سال: 2021
ISSN: ['2212-9820', '2212-9839']
DOI: https://doi.org/10.1016/j.jcou.2021.101611