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首页> 外文期刊>Energy Conversion & Management >Biogas from anaerobic digestion of fruit and vegetable wastes: Experimental results on pilot-scale and preliminary performance evaluation of a full-scale power plant
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Biogas from anaerobic digestion of fruit and vegetable wastes: Experimental results on pilot-scale and preliminary performance evaluation of a full-scale power plant

机译：水果和蔬菜废物的厌氧消化产生的沼气：大型电厂的中试规模和初步性能评估的实验结果

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摘要

This paper presents the experimental results obtained through an anaerobic digestion pilot plant by using fruit and vegetable wastes as single substrate. The substrate materials were sampled from the wastes produced by the Fruit and Vegetable Wholesale Market of Sardinia (Italy). The experimental study was carried out over a period of about 6 months to evaluate the most suitable operating parameters of the process depending on the availability of different kinds of fruit and vegetable wastes over the different periods of the year. Overall, the optimum daily loading rate of wastes was 35 kg/d, with a corresponding hydraulic residence time of 27 days. The optimum organic loading rate ranged from 2.5 to 3.0 kg_(vs)/m~3 d and the average specific biogas production was about 0.78 Nm~3/kg_(vs), with a specific methane yield of about 0.43 Nm~3/kg_(vs). The results of the experimental investigation were used for a preliminary performance evaluation of a full-scale anaerobic digestion power plant for treating all the fruit and vegetable wastes produced by the Wholesale Market of Sardinia (9 t/d). The estimate of daily methane production (290 Nm~3/d) leads to a CHP unit with a power output of about 42 kW and an annual electrical production of about 300 MW h/year (about 25% of the wholesale market electrical consumption). The AD power plant also shows interesting economic features, since its energy production cost (about 150 €/MWh) is slightly lower than the energy purchase cost of the wholesale market (about 200 e/MW h) and a Pay-Back Time of about 7.25 years can be achieved in the case of dispatching the electrical energy to the national grid. The PBT decreases to about 5.4 years if 50% of the available thermal energy is used to substitute heat production from fossil fuel boilers.
机译：本文介绍了通过以水果和蔬菜废物为单一底物的厌氧消化中试植物获得的实验结果。从撒丁岛（意大利）的水果和蔬菜批发市场产生的废物中取样基质材料。进行了大约6个月的实验研究，以根据一年中不同时期各种水果和蔬菜废物的可利用性来评估该过程的最合适的操作参数。总体而言，最佳的每日垃圾装载量为35 kg / d，相应的水力停留时间为27天。最佳有机负载量为2.5至3.0 kg_（vs）/ m〜3 d，平均比沼气产量约为0.78 Nm〜3 / kg_（vs），比甲烷产量约为0.43 Nm〜3 / kg_。 （vs）。实验研究的结果被用于对一个由撒丁岛批发市场产生的所有水果和蔬菜废物进行处理的大型厌氧消化发电厂的初步性能评估（9吨/天）。估计每天的甲烷产量（290 Nm〜3 / d）会产生一个热电联产装置，其功率输出约为42 kW，年发电量约为300 MW h /年（约占批发市场用电量的25％） 。 AD电厂还显示出有趣的经济特征，因为其能源生产成本（约150€/ MWh）略低于批发市场的能源购买成本（约200 e / MW h），投资回收期约为在向国家电网分配电能的情况下，可以达到7.25年。如果将50％的可用热能用于替代化石燃料锅炉的供热，则PBT降低至5.4年。

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  • 来源
    《Energy Conversion & Management》 |2014年第1期|22-30|共9页
  • 作者

    Efisio Antonio Scano; Carla Asquer; Agata Pistis; Luca Ortu; Valeria Demontis; Daniele Cocco;

  • 作者单位

    Biofuels and Biomass Laboratory, Sardegna Ricerche, Z.I. Macchiareddu, 09010 Uta, CA, Italy,Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo, 2 09123 Cagliari, Italy;

    Biofuels and Biomass Laboratory, Sardegna Ricerche, Z.I. Macchiareddu, 09010 Uta, CA, Italy;

    Biofuels and Biomass Laboratory, Sardegna Ricerche, Z.I. Macchiareddu, 09010 Uta, CA, Italy;

    Biofuels and Biomass Laboratory, Sardegna Ricerche, Z.I. Macchiareddu, 09010 Uta, CA, Italy;

    Biofuels and Biomass Laboratory, Sardegna Ricerche, Z.I. Macchiareddu, 09010 Uta, CA, Italy;

    Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo, 2 09123 Cagliari, Italy;

  • 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

    Anaerobic digestion; Fruit and vegetable waste; Biogas production; Mesophilic digestion;

    机译：厌氧消化;水果和蔬菜废物;沼气生产;中温消化;

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