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- Title
Proposal of an environmental-friendly poly-generation model regarding the flue gas processing for the production of electricity, cooling, heating, freshwater, and methanol.
- Authors
Zhou, Feng; Cui, Wenhua; Yang, Lei; Chen, Jinwei
- Abstract
In this paper, a novel poly-generation system with high thermodynamic performance and low carbon dioxide (CO 2) emission is presented and analyzed from the 4E (energy, exergy, economic, and environmental) perspective. The newly designed structure consists a gas turbine cycle, transcritical CO 2 cycles, a Kalina power cycle, a water desalination unit, a methanol production unit, and a chiller. Toward this goal, the flue gas leaving the gas turbine cycle is processed and utilized. Thermodynamic analysis demonstrates that the total energy and exergy efficiencies are attainable at 58.75% and 69.46%, respectively. In addition, the total exergy destruction rate equals 183105 kW in which the gas turbine cycle is the major source of irreversibility with a share of 51%. In addition, exergy analysis indicates that the combustor of the gas turbine cycle has the highest exergy destruction ratio (44.54%) among all equipment. Regarding the environmental aspect, the total CO 2 emission and its emission intensity for the proposed process are 18678.42 kg CO2 /h and 0.75 kg CO2 /kg MeOH , respectively. Its indirect emission is responsible for 48.8% of the total emission as well. Attributable to the thermo-environmental results, the proposed process has a suitable performance compared to similar technologies. The economic analysis demonstrated that its total annual cost equals 60800563 $ and production costs of methanol, freshwater, heating, cooling, and power are 0.3 $/kg MeOH , 0.43 $/kg freshwater , 0.16 $/kg LPS , 0.022 $/kg chilled water , and 0.069 $/kWh, respectively. • A noel waste management for a gas turbine cycle aimed at multiple productions. • Use of combined power plants, desalination, chiller, and methanol production unit. • Use of Aspen Hysys for simulation and performing a comprehensive 4E analysis. • Energy and exergy efficiencies are attainable at 58.75% and 69.46%. • Total CO 2 emission intensity and methanol cost are 0.75 kg CO 2 kg MeOH and 0.3 $ / kg MeOH .
- Subjects
FLUE gases; MANUFACTURING processes; KALINA cycle; CARBON emissions; GAS turbines; METHANOL as fuel
- Publication
Process Safety & Environmental Protection: Transactions of the Institution of Chemical Engineers Part B, 2023, Vol 175, p870
- ISSN
0957-5820
- Publication type
Article
- DOI
10.1016/j.psep.2023.05.042