چكيده به لاتين
Bioenergy is increasingly prominent worldwide, highlighting the significant potential of
biogas energy recovery for biomethane production and CO2 sequestration in the energy sector.
Amine scrubbing, a traditional upgrading method, is valued for its ability to produce highpurity renewable methane while minimizing methane slippage and removing acid gases such
as CO2 and H2S. This research investigates the technical-economic feasibility of different
biogas upgrading routes using amine washing, especially with diethanolamine (DEA),
diisopropylamine (DIPA), methyldiethanolamine (MDEA), piperazine (PZ),
aminomethylpropanol (AMP) and monoethanolamine (MEA). Simulation studies have been
done using Aspentech software. The results show that MEA, DIPA, MDEA, MDEA-PZ, AMP,
and DEA require 9, 12, 25, 9, 11, and 13 steps, respectively, to achieve a biomethane mass
fraction of 91%. The mass fraction of CO2 output from the stripper tower for MEA, DIPA,
MDEA, MDEA-PZ, AMP and DEA is determined as 96.4%, 93.8%, 93.36%, 94.75%, 99.9%
and 93.9%, respectively. From an economic point of view, the total capital costs of
implementing MEA, DIPA, MDEA, MDEA-PZ, AMP and DEA systems are estimated at
110.72, 66.57, 80.49, 80.47, 64.56 and 65.61 MUSD, respectively. In addition, the operating
profit of MEA, DIPA, MDEA, MDEA-PZ, AMP and DEA systems has been calculated as
17.44, 17.76, 17.59, 17.74, 18.55 and 17.80 MUSD per year, respectively.
