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Techno-economic and sensitivity analysis of coconut coir pith-biomass gasification using ASPEN PLUS

机译：使用ASPEN PLUS的椰壳髓生物质气化技术经济性和敏感性分析

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摘要

The study on the steam gasification of biomass char is important to evaluate the performance of steam gasification of biomass and its char. A validated ASPEN plus model was used to investigate the effects of temperature (1023, 1073, 1123, 1173, and 1223 K) and steam-to-feed ratio (0.5, 1.0. 1.5. 2.0, and 2.5) on the syngas output and its composition using steam gasification of coir pith and its char. The study also compared the output and composition of syngas of both processes conducted at 1123 K and 0.75 (steam-to-feed ratio). The techno-economic analysis of both gasifications at the above condition was also investigated. The sensitivity analysis indicated that the temperature has both positive and negative influences; while increasing the steam-to-feed ratio has only a positive influence on the syngas output. Further, it was observed that the increase in temperature increased the yield of H-2 and CO, but it decreased the yield of CO2 and CH4. Meanwhile, it was noted that the increase in steam-to-feed ratio increased the yield of H-2 and CO2 however, it decreased the yield of CO and CH4. The comparative study indicated that the coir pith char gasification generated 27% more syngas output and 25% more H-2 + CO composition than the coir pith gasification. The techno-economic analysis indicated that the coir pith char steam gasification can generate 1.12 times more revenue than coir pith steam gasification. It can be concluded that the biomass char gasification is more advantageous than biomass only gasification.
机译：生物质炭蒸汽气化的研究对于评价生物质及其炭的蒸汽气化性能具有重要意义。经过验证的ASPEN plus模型用于研究温度（1023、1073、1123、1173和1223 K）和蒸汽进料比（0.5、1.0、1.5。2.0和2.5）对合成气输出和输出的影响。它的成分是使用椰皮髓及其炭的蒸汽气化。该研究还比较了在1123 K和0.75（蒸汽进料比）下进行的两种工艺的合成气的产量和组成。还研究了在上述条件下两种气化的技术经济分析。敏感性分析表明温度对正向和负向都有影响。同时增加蒸汽进料比仅对合成气输出有积极影响。此外，观察到温度升高增加了H-2和CO的产率，但是降低了CO2和CH4的产率。同时，注意到蒸汽进料比的增加增加了H-2和CO 2的产率，但是降低了CO和CH 4的产率。对比研究表明，与椰壳髓气化相比，椰壳髓煤焦气化产生的合成气产量增加了27％，H-2 + CO组成增加了25％。技术经济分析表明，椰皮髓炭蒸汽气化可产生的收益是椰皮髓蒸汽气化的1.12倍。可以得出结论，生物质炭气化比仅生物质气化更具优势。

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  • 来源
    《Applied Energy》 |2020年第1期|114350.1-114350.10|共10页
  • 作者

  • 作者单位

    Hamad Bin Khalifa Univ Coll Sci & Engn Div Sustainable Dev Doha Qatar;

    Hamad Bin Khalifa Univ Coll Sci & Engn Div Sustainable Dev Doha Qatar|Hamad Bin Khalifa Univ Coll Sci & Engn Div Engn Management & Decis Sci Doha Qatar;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coconut coir pith; Slow pyrolysis; Steam gasification; Techno-economic analysis; Aspen plus;

    机译：椰子椰丝;缓慢的热解;蒸汽气化;技术经济分析;白杨加;

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