| dc.description.abstract | This methanol plant design is motivated by the growing domestic demand for methanol
in Indonesia and the country's high import dependency. At the same time, Indonesia
faces significant CO2 emissions from its industrial sector. By utilizing CO2 as a raw
material, this plant simultaneously contributes to reducing greenhouse gas emissions,
to achieve Indonesia's net-zero emissions target by 2060. The plant is planned to be
located in the Arun Lhokseumawe Special Economic Zone (SEZ), Aceh Province,
Indonesia, with a production capacity of 150,000 ton/yr and operating 330 days/yr. The
main raw materials of this plant are CO2 sourced from industrial flue gas and H2
produced from water electrolysis. The selected process is catalytic CO2 hydrogenation
using a multi tubular fixed bed reactor (Lurgi type) with a Cu/ZnO/Al2O3 catalyst. The
reactor is operated at 220°C and 50 bar. The methanol product is purified through a
distillation column to achieve a purity of 99.7 wt%, meeting AA-grade commercial
specifications. The economic evaluation is based on the design year 2030. The results
show that the plant requires a Fixed Capital Investment (FCI) of $88,261,848 and a
Total Capital Investment (TCI) of $106,906,091. The economic feasibility indicators
obtained are as follows: Return on Investment (ROI) of 14.70% before tax and 11.47%
after tax; Pay Out Time (POT) of 4.1 years before tax and 4.66 years after tax; Break
Even Point (BEP) of 40.03% of design capacity; Shut Down Point (SDP) of 13.29%;
and Discounted Cash Flow Rate (DCFR)/IRR of 28.12%. All feasibility indicators
exceed the minimum required values; therefore, the proposed methanol plant with a
capacity of 150,000 tons/year is declared economically feasible and financially
attractive for establishment. | en_US |
