Open AccessTechno-economic analysis of natural gas high CO2 content for dimethyl ether production with different CO2 separation using CFZ and membrane technologies
Author(s) -
Muhammad Nizami,
Widodo Wahyu Purwanto
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/673/1/012015
Subject(s) - tonne , dimethyl ether , natural gas , waste management , environmental science , chemistry , engineering , catalysis , organic chemistry
Development of the East Natuna gas field, the largest natural gas resources in Southeast Asia, is still highly challenging because of the presence of CO 2 , up to 72%. Reliable CO 2 separation technology implementation with suitable CO 2 handling methods is crucial to maximizing the field’s potential. Dimethyl ether is one of the chemical products that can be synthesized from natural gas that can be used as a substitute fuel for LPG. In this study, we compare the techno-economic analysis of natural gas high CO 2 content to dimethyl ether using two schemes of CO 2 separation: controlled freeze zone (CFZ) and membrane technology with CO 2 sequestration. The process simulation is performed by Aspen Hysys V11 software. The results show that in technical aspect on dimethyl ether synthesis with CFZ feed gas (gas consumption of 0.0412 MMSCF/tonne-DME and 2.077 MWh/tonne-DME) is slightly better performance than synthesis process with membrane feed gas (0.043 MMSCF/tonne-DME and 2.077 MWh/tonne-DME). In an economical aspect, levelized cost of dimethyl ether production with CO2 sequestration of 556 US$/tonne-DME (CFZ) and 495 US$/tonne-DME (membrane) is higher than levelized cost without CO 2 sequestration with the value of 378 US$/tonne-DME (CFZ) and 329 US$/tonne-DME (membrane).