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首页> 外文会议>International Conference on Concentrating Solar Power and Chemical Energy Systems >A novel high-temperature solar chemical reactor for syngas production from solar-driven thermochemical gasification of wood biomass
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A novel high-temperature solar chemical reactor for syngas production from solar-driven thermochemical gasification of wood biomass

机译：用于木材生物质的太阳能热化学气化的新型高温太阳能化学反应器。木材生物质的热化学气化

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Solar energy is the most abundant renewable energy source on earth and its contribution in the energy mix is growing fast, especially for electricity production via photovoltaic panels and to a lesser extent for concentrated solar energy. However, concentrated solar energy can also provide high temperature heat for process applications. Solar fuels are envisioned as alternative fuels that would enable long term storage and transport of solar energy. Solar thermochemical gasification of lignocellulosic biomass has been investigated in this objective. The use of concentrated solar energy as the external heat source for the high-temperature reaction allows producing high-value syngas with both higher energy conversion efficiency and reduced cost of gas cleaning and separation, while saving biomass feedstock. A 1.5 kW_(th) solar reactor was successfully tested for continuous solar driven gasification of millimetric wood particles under real solar irradiation using a parabolic dish concentrator. Investigated temperatures ranged from 1100°C to 1400°C. The influence of temperature, oxidizing agent nature (H_2O or CO_2), heating configuration (direct or indirect irradiation), on gas yield and energy conversion efficiency was investigated. The syngas yield drastically increased with the temperature for both steam and CO_2 gasification, while increasing the steam content favored H_2 production over CO. Continuous biomass conversion was demonstrated with a global solar-to-fuel energy conversion efficiency of 26% at 1300°C and a cold gas efficiency as high as 1.16, confirming efficient solar up-grade of the feedstock energy content.
机译：太阳能是地球上最丰富的可再生能量源和其在能源结构贡献正在快速增长，尤其是用于经由光伏面板电力生产和用于集中的太阳能程度较轻。然而，集中的太阳能也可以用于过程应用提供高温度的热量。太阳能燃料设想为替代燃料，这将使长期存储和太阳能的运输。木质纤维素生物质热化学太阳能气化已经在这一目标进行了研究。作为用于高温反应外部热源使用集中的太阳能的允许生产具有两个较高的能量转换效率和气体净化和分离的成本降低的高价值的合成气，同时节省生物质原料。阿1.5 kW_（TH）太阳能反应器中成功地测试了使用抛物面聚光太阳能实际照射下的毫米的木材颗粒的连续的太阳能驱动的气化。研究温度范围从1100℃到1400℃。温度的影响，氧化剂性质（H2O或CO_2），加热构造（直接或间接照射），在气体产率和能量转换效率进行了研究。合成气收益率急剧与温度为蒸汽和CO_2气化增加，而增加蒸汽含量青睐H_2产量超过CO。连续的生物质转化用26％的全球太阳能 - 燃料的能量转换效率证明在1300℃和冷气体效率高达1.16，证实了原料的能量含量的有效的太阳能向上级。

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