Thermo-Economic analysis of a novel biomass Gasification-Based power system integrated with a supercritical CO2 cycle and a Coal-Fired power plant

Chen, Heng; Lu, Di; An, Jizhen; Qiao, Shichao; Dong, Yuehong; Jiang, Xue; Xu, Gang; Liu, Tong

doi:10.1016/j.enconman.2022.115860

Cited by 39 publications

(3 citation statements)

References 55 publications

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“…In recent years, many scholars have conducted researches on the ratio, type, operating conditions and boiler load of blended biomass gas. Chen et al simulated a new biomass air-steam circulating fluidized bed gasification co-combustion system based on waste heat and flue gas water recovery using Aspen Plus software and compared it with the original system [71].…”

Section: Anticorrosion Technologymentioning

confidence: 99%

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

Wang,

Ma,

Zhao

et al. 2024

JRM

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This study explores the corrosion issues arising from the coupled combustion of coal and biomass and proposes potential solutions. Biomass, as a renewable energy source, offers advantages in energy-saving and carbon reduction. However, the corrosive effects of alkali metal compounds, sulfur (S) and chlorine (Cl) elements in the ash after combustion cannot be underestimated due to the high volatile content of biomass fuels. We investigate the corrosion mechanisms, as well as the transfer of Cl and alkali metal elements during this process. Comparative corrosion analyses are conducted among coal-fired boilers, pure biomass boilers and boilers with coupled combustion. Various biomass types in co-firing are studied to understand different corrosion outcomes. The main factors influencing corrosion include the physicochemical properties of biomass feedstock, furnace temperature and heating surface materials, with the chemical composition and ash content of biomass playing a dominant role. Currently, the methods used for anti-corrosion include water washing pretreatment of biomass feedstock, application of novel alloys and coatings and the development of additives to inhibit fouling, ash deposition and corrosion. Efficient inhibitors are economical and easy to produce. Additionally, biomass can be converted into biomass gasification gas, although challenges related to tar still need to be addressed.

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Section: Anticorrosion Technologymentioning

confidence: 99%

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

Wang,

Ma,

Zhao

et al. 2024

JRM

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“…The most common way to calculate SPB is to divide the initial investment by the annual net cash flow. However, this approach requires that the annual net cash flow be constant, which is difficult to achieve in practice due to price fluctuations [44]. The concept of average annual cash flow can help to overcome this problem, but payback time may be underestimated or overestimated depending on cash flow dynamics [45].…”

Section: Simple Paybackmentioning

confidence: 99%

Techno-Economic Analysis of Thermochemical Conversion of Waste Masks Generated in the EU during COVID-19 Pandemic into Energy Products

2023

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During the COVID-19 pandemic, more than 24 billion pieces of surgical mask waste (WM) were generated in the EU region, with an acute shortage of their management and recycling. Pyrolysis and gasification are among the most promising treatments that were proposed to dispose of WMs and convert them into pyrolysis oil and hydrogen-rich syngas. This work aimed to investigate the techno-economic analysis (TEA) of both treatments in order to assess the feasibility of scaling up. The TEA was carried out using a discounted cash flow model and its data were collected from practical experiments conducted using a fluidised bed pyrolysis reactor and bubbling fluidised bed gasifier system with a capacity of 0.2 kg/h and 1 kg/h, respectively, then upscaling to one tonne/h. The technological evaluation was made based on the optimal conditions that could produce the maximum amount of pyrolysis oil (42.3%) and hydrogen-rich syngas (89.7%). These treatments were also compared to the incineration of WMs as a commercial solution. The discounted payback, simple payback, net present value (NPV), production cost, and internal rate of return (IRR) were the main indicators used in the economic feasibility analysis. Sensitivity analysis was performed using SimLab software with the help of Monte Carlo simulations. The results showed that the production cost of the main variables was estimated at 45.4 EUR/t (gate fee), 71.7 EUR/MWh (electricity), 30.5 EUR/MWh (heat), 356 EUR/t (oil), 221 EUR/t (gaseous), 237 EUR/t (char), and 257 EUR/t (syngas). Meanwhile, the IRR results showed that gasification (12.51%) and incineration (7.56%) have better economic performance, while pyrolysis can produce less revenue (1.73%). Based on the TEA results, it is highly recommended to use the gasification process to treat WMs, yielding higher revenue.

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“…An evaluation of the project was developed to clarify the benefits of the collocation of the systems. Assumptions were made for the study as follows: [ 21 ] 1) The feed rate of biomass and power production of the original biomass power station remain static, so its power‐generation efficiency is fixed. 2) The parameters of the steam from the biomass power station are unaltered.…”

Section: Thermodynamic Analysismentioning

confidence: 99%

Thermo‐Economic Analysis of a Novel Power System Including Medical‐Waste Plasma Gasification, SOFC, Biomass‐Fired Power Generation, and CCS

Chen

et al. 2023

Energy Tech

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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.

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Thermo-Economic analysis of a novel biomass Gasification-Based power system integrated with a supercritical CO2 cycle and a Coal-Fired power plant

Cited by 39 publications

References 55 publications

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

New Problems of Boiler Corrosion after Coupling Combustion of Coal and Biomass and Anti-Corrosion Technologies

Techno-Economic Analysis of Thermochemical Conversion of Waste Masks Generated in the EU during COVID-19 Pandemic into Energy Products

Thermo‐Economic Analysis of a Novel Power System Including Medical‐Waste Plasma Gasification, SOFC, Biomass‐Fired Power Generation, and CCS

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