Instituto Politécnico Nacional, Coyoacán, Mexico City, Mexico.
Technological Institute of Merida, Merida, Yucatan, Mexico.
Waste Manag Res. 2022 Dec;40(12):1785-1793. doi: 10.1177/0734242X221105211. Epub 2022 Jul 23.
This article aims to conduct a techno-economic feasibility assessment of producing energy by waste incineration and methane capture in the central region of Mexico. Three scenarios at different efficiency rates were considered: 50, 80 and 100%. For the methane project, yields and power capacity were determined using the potential generation rate and the degradable organic carbon content through the LandGEM model. For incineration, the waste calorific potential and the average moisture content were used to estimate the achievable electrical performance. The estimated annual energy was 35,018 GWh for methane, compared to 537.71 GWh for incineration. Both projects reported financial economic feasibilities when evaluated at a discount rate of 12%. Incineration reported an net present value of US$49,942,534 and an internal rate of return of 26% in contrast to US$4,054,109 and 17% for the methane project. Although the payback period for incineration was lower than for methane, its levelized cost of energy was significantly higher. These results are intended to assist the decision-making process when planning and developing waste management strategies under principles of circular economy in Mexico and similar regions worldwide.
本文旨在对墨西哥中部地区通过垃圾焚烧和甲烷捕获来产生能源进行技术经济可行性评估。考虑了三种不同效率的情景：50%、80%和 100%。对于甲烷项目，使用潜在生成率和 LandGEM 模型中的可降解有机碳含量来确定产量和电力容量。对于焚烧，使用废物热值和平均水分含量来估计可实现的发电性能。甲烷的估计年能量为 35,018 GWh，而焚烧为 537.71 GWh。当以 12%的贴现率进行评估时，两个项目均报告了财务经济可行性。焚烧的净现值为 49,942,534 美元，内部收益率为 26%，而甲烷项目的净现值为 4,054,109 美元，内部收益率为 17%。尽管焚烧的投资回收期低于甲烷，但它的能源平准化成本却高得多。这些结果旨在为墨西哥和全球类似地区在循环经济原则下规划和制定废物管理策略时提供决策支持。
