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For environmentally friendly treatment and efficient utilization of medical waste, a coupling of medical‐waste‐based plasma gasification, fuel‐cell power generation, and biomass power is implemented, and carbon capture and storage (CCS) unit is integrated to achieve low carbon emissions. The clean syngas obtained from the plasma gasification of medical waste is first utilized by the fuel cell and drives a gas turbine to produce power after supplementary combustion. The exhaust gas is used to heat the feed stream of the biomass power station. CCS unit is heated by exhaust gases and the extracted steam from the biomass power station, and the thermal energy of the pressurized carbon dioxide is recovered. Thermodynamic and economic analyses are conducted to examine the project's performance based on a 1.00 kg s−1 plasma gasifier and a 34 MW biomass power station. The analysis indicates that medical‐waste‐generation energy and exergy efficiency reaches 35.10% and 33.58%. CO2 of 59.84 kilotons can be fixed and sequestered yearly. The initial investment in the project can be recovered in 5.95 years, with a net present value of 44.72 M$. It is shown in the conclusions that the project is advantageous and beneficial in medical‐waste utilization.

Herein, a novel hybrid design that combines hazardous waste plasma gasification, gas turbine, supercritical CO 2 cycle, absorption heat pump, and coalfired combined heat and power (CHP) plant is proposed. In the integrated scheme, medical waste and concentrated solution of desulfurization wastewater are sent to the plasma gasifier and converted to syngas, which is conveyed into the gas turbine system after the necessary treatment. In terms of waste heat utilization of syngas and flue gas, some are used to drive the supercritical CO 2 cycle, some are used by the absorption heat pump for heating, and the rest are used to heat the feedwater of the coal-fired CHP plant directly. Based on a typical coal-fired CHP plant, the benefits of this system are examined in terms of both thermodynamics and economics. Once the heat supply and the net electricity from coal remain the same, the net power generated by the waste in the hybrid design is 18.45 MW, while the net wasteto-electricity efficiency reaches 47.40%. In just 4.76 years, the initial investment in the proposed system is recouped, and in its 25 year lifetime, the system achieves a net present value of 150,491.81 k$.

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