Study of livestock biogas upgrading using a pilot-scale photocatalytic desulphurizer followed by a hollow fibre carbon dioxide adsorption module
Journal
The Journal of Agricultural Science
Pages
1
Date Issued
2021
Author(s)
Chung, Hsin-Cheng
Abstract
The objective of this project is to integrate a domestic photocatalytic desulphurization facility
with a biogas upgrading module and try to develop a system for biogas desulphurization and
upgrading under ambient conditions. Four photocatalytic desulphurization reactors (PDRs)
and one activated carbon reactor (ACR) were applied for biogas desulphurization and filtration
under ambient conditions. Moreover, a hollow fibre carbon dioxide (CO2) adsorption
module was applied for biogas upgrading. The operation pressure of the PDR and ACR
was under ambient pressure. Results showed that hydrogen sulphide removal efficiency of
the photocatalytic desulphurizer was about 0.99–1.00 (v/v) under the inlet biogas flow
less than 5 litres/min and the concentration of inlet hydrogen sulphide was lower than
5600 mg/m3. For desulphurized biogas upgrading, the removal efficiency of CO2 was higher
than 0.90 (v/v) under the outlet biogas flow was 1 litre/min (i.e. inlet biogas flow was
about 2 litres/min). However, the ratio of methane in the upgrading biogas was lower than
0.90 (v/v). Thus, nitrogen gas removal cartridges will be integrated with the biogas upgrading
module to promote methane concentration in the upgraded biogas.
Subjects
Biogas upgrading
biomethane
hollow fibre adsorption
livestock biogas
photocatalytic desulphurization
SDGs
Type
journal article
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