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This research studies the generation of electricity from tri-reforming with the SOFC system by using wastewater from sugar industry as feedstock. However, this system releases carbon dioxide (CO2), which is the main cause of global warming. Thus, this study aims to reduce CO2 by using the reversible solid oxide fuel cell (RSOFC). The RSOFC system includes four main processes: tri-reforming, SOFC, solid oxide electrolyser cell (SOEC) and methanation. The RSOFC system was performed by using Aspen Plus v.9.0. The objective was to study the optimal operating conditions of each process in order to generate the maximum electricity with a minimum of CO2 emission. The results of the RSOFC system showed that the electrical power density was 6489.56 W/m2, which similarly when compared with tri-reforming with the SOFC system. Moreover, CO2 released from tri-reforming with the SOFC system was 1602.84 kg/hr, while the RSOFC system released 1206.11 kg/hr of CO2. Thus, the RSOFC system potentially reduced CO2 emission by 24.75 %. However, high electric power was needed in the SOEC process. Thus, the process should be carefully considered in energy efficiency aspect.
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