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基于生物质-太阳能气化的多联产系统模拟及分析

DOI: 10.13334/j.0258-8013.pcsee.2015.01.014, PP. 112-118

Keywords: 太阳能,生物质,气化,多联产

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Abstract:

提出一种基于太阳能-生物质气化技术并用于生产甲醇和发电的多联产系统。利用塔式集热镜场聚焦产生的800~1200℃高温热源来驱动塔式太阳能气化反应器中的生物质气化反应,产生的合成气经压缩后送至甲醇合成塔,而未反应的合成气送至燃气-蒸汽联合循环系统中用于发电。对该系统进行了热力学分析,同时研究各参数包括水蒸气流量和气化温度对系统性能产生的影响。结果表明,调整水蒸气流量和气化温度将改变合成气的组分,影响到系统的甲醇产量和发电功率,当水蒸气流量为50kg/s时系统效率达到最高值49.48%。随着水蒸气流量和气化温度增加,太阳能热份额逐步提高,系统相对节省率同步下降,同时系统的生物质节省率维持在50%左右。研究成果为高效利用新疆等西部地区丰富的太阳能和生物质资源提供了新途径。

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