초록 |
Since the exhaust gas, which is generated by running the engines, contains CO2, which is greenhouse gas. there have been continuous efforts to reduce greenhouse gas emissions worldwide. Recently, dry reforming has received great attention to convert CO2 to syngas, which can further be used for the synthesis of methanol, as one of the possible applications to turn the exhaust gas into value-added products and reduce the greenhouse gas emission. In this study, we developed the total process model for the conversion of exhaust gas into methanol, which consists of a CO2 purifying, dry reforming and methanol synthesis units. Since main components of exhaust gas is N2, Main purpose of CO2 purifying process is N2/CO2 separation. In the CO2 purifying process, two cases with membrane and acid gas removal unit (AGRU) were compared on the basis of process performance and the entire process model was analyzed to evaluate the reduced amount of CO2 and the economical benefits of the suggested process. |