Thermodynamic Comparison of alternative Biomass Gasification Techniques for producing Syngas for Gas Turbine Application
Thermodynamic Comparison of alternative Biomass Gasification Techniques for producing Syngas for Gas Turbine Application
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DOI：
10.1016/j.egypro.2017.12.133
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发表时间：
2017-12
期刊：
影响因子：
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通讯作者：
M. Aneke;Meihong Wang
中科院分区：
文献类型：
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作者：
M. Aneke;Meihong Wang
分别建立了生物质气化-等离子体脱焦油反应器组合工艺和等离子体气化工艺的白杨Plus®模型，并进行了验证和分析。分析表明，等离子体技术能够生产焦油含量可接受的燃气涡轮机应用的合成气。然而，这带来了巨大的能源损失。例如，在本文中进行的分析的背景下，生物质气化过程与等离子体焦油清洁相结合的热力学效率被发现为43.6%，而等离子体气化过程的热力学效率为37.3%，尽管其生物合成气热值较高。等离子体气化过程所记录的较低效率是由于获得气化生物质材料所需的高温所需的较高电能。由于低效率，粗生物合成气的等离子体焦油清洁或等离子体气化虽然在技术上可行，但可能不是用于生产燃气涡轮机应用的生物合成气的可行途径。然而，如果等离子体反应器在非高峰期期间将由来自风力和其他可再生能源的电力供电，则其可能是能量存储的可行选择。
In this paper, Aspen Plus® models of biomass gasification process combined with plasma reactor for tar removal and plasma gasification process were developed respectively, validated and analyzed thermodynamically. The analysis shows that plasma technology is capable of producing syngas with acceptable tar content for gas turbine application. However, this comes with a huge energy penalty. For example, within the context of the analysis carried out in this paper, the thermodynamic efficiency of the biomass gasification process combined with plasma tar cleaning was found to be 43.6% while that of the plasma gasification process was 37.3% despite its higher bio-syngas calorific value. The lower efficiency recorded for the plasma gasification process occurs as a result of the higher electrical energy required to attain the high temperature needed for the gasification of the biomass material. As a result of the low efficiency, plasma tar cleaning of raw bio-syngas or plasma gasification, although technologically feasible, may not be a viable route for producing bio-syngas for gas turbine application. However, it may be a viable option for energy storage if the plasma reactor will be powered with electricity from wind and other renewable energy resources during off peak period.