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Techno-Economic Feasibility of Steam and Electric Power Generation from the Gasification of Several Biomass in a Sugarcane Mill
BioEnergy Research ( IF 3.1 ) Pub Date : 2021-08-10 , DOI: 10.1007/s12155-021-10311-2
Jorge Aburto 1 , Elias Martinez-Hernández 1 , Myriam A. Amezcua-Allieri 1
Affiliation  

The present work investigated the techno-economic feasibility of using gasification as an alternative to direct combustion to generate steam and electric power generation in a sugarcane mill using different types of solid biofuels. Two cogeneration scenarios were analyzed: scenario 1 (S1), using a boiler and steam turbines only, while scenario 2 (S2) uses gas and steam turbines. It was found that for a solid biofuel cost of 8 US $/ton, the economic results between types of biomass are similar, but at a higher solid biofuel cost, the cost of energy production is lower in S2 when compared to S1. The cost of generated power in S1 using sugarcane bagasse (0.091 US $/kWh) is higher than the cost considered for grid electricity (0.077 US$/kWh), while in S2 is lower (0.063 US$/kWh); therefore, electricity might be exported to the grid at a competitive price in S2. In both scenarios, the greatest contribution to the total annual costs comes from the investment required by about 83%. In the case of the other biofuels, such as cladodes, oil brunches, and coffee pulp, the cost obtained is less than 0.077 US$/kWh for all cases in both scenarios, except for the tender cladodes in S1, mainly due to its higher moisture content. The systems studied in S2 using oil palm empty brunches as complementary solid biofuel in the sugar mill are recommended for year-round bioenergy production.



中文翻译:

甘蔗厂几种生物质气化产生蒸汽和电力的技术经济可行性

目前的工作调查了在使用不同类型固体生物燃料的甘蔗厂中使用气化代替直接燃烧产生蒸汽和发电的技术经济可行性。分析了两种热电联产方案:方案 1 (S1),仅使用锅炉和蒸汽轮机,而方案 2 (S2) 使用燃气轮机和蒸汽轮机。结果表明,对于 8 美元/吨的固体生物燃料成本,不同类型生物质之间的经济效果相似,但在较高的固体生物燃料成本下,S2 的能源生产成本与 S1 相比较低。S1 中使用甘蔗渣发电的成本(0.091 美元/千瓦时)高于考虑的电网电力成本(0.077 美元/千瓦时),而在 S2 中较低(0.063 美元/千瓦时);所以,在 S2 中,电力可能以具有竞争力的价格输出到电网。在这两种情况下,对年度总成本的最大贡献来自大约 83% 的所需投资。对于其他生物燃料,例如分支、油早午餐和咖啡果肉,除了 S1 中的招标分支外,两种情况下获得的成本均低于 0.077 美元/千瓦时,主要是由于其较高水分含量。在 S2 中研究的系统使用油棕空早午餐作为糖厂的补充固体生物燃料,建议用于全年生物能源生产。两种情况下所有情况的 077 美元/千瓦时,除了 S1 中的嫩枝,主要是由于其较高的水分含量。在 S2 中研究的系统使用油棕空早午餐作为糖厂的补充固体生物燃料,建议用于全年生物能源生产。两种情况下所有情况的 077 美元/千瓦时,除了 S1 中的嫩枝,主要是由于其较高的水分含量。在 S2 中研究的系统使用油棕空早午餐作为糖厂的补充固体生物燃料,建议用于全年生物能源生产。

更新日期:2021-08-10
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