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A hybrid biological and thermal waste-to-energy system with heat energy recovery and utilization for solid organic waste treatment

机译：具有热能回收和利用的生物和热能废物混合处理系统，用于固体有机废物处理

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摘要

A hybrid biological and thermal waste-to-energy system in lab-scale level of application was developed to combine a 1000 L anaerobic digester and a 10 KW gasifier for solid organic wastes treatment and energy generation. Energy performance of the single system (anaerobic digestion (AD) and gasification) and the integrated AD-gasification system treating blended food waste (FW) and medium-sized woods chips (WCs) by cutting or chipping were studied. The results showed that the methane yield of AD of FW was 0.52 L CH4/g VS/d with a volatile solid reduction rate of 85%. Producer gas with over 34% of CH4, H-2, and CO was generated from gasification of WCs with biochar as a by-product. A small amount of the methane-rich gas generated from AD were mixed with a large amount of producer gas generated from gasification in a gas storage tank, improving the heating value of the producer gas. The waste heat generated from the gasification of WCs was used for the heat preservation of AD, increasing the overall energy efficiency of the integrated AD-gasification system. When the treatment capacity ratio of AD to gasification is below 0.4, the integrated AD - gasification system can operate with a self-supply heat recovery system. (C) 2018 Elsevier Ltd. All rights reserved.
机译：开发了一种在实验室规模的应用中将生物和热废物转化为能源的混合系统，该系统将1000 L厌氧消化池和10 KW气化炉组合在一起，用于固体有机废物的处理和能源的产生。研究了单个系统（厌氧消化（AD）和气化）和集成式AD气化系统（通过切割或切屑处理混合食物垃圾（FW）和中型木屑（WCs））的能源性能。结果表明，FW的AD甲烷产量为0.52 L CH4 / g VS / d，挥发性固体还原率为85％。带有生物炭作为副产物的WC气化产生了CH4，H-2和CO超过34％的生产气。在储气罐中，将由AD产生的少量富甲烷气与由气化产生的大量产生气混合，从而提高了产生气的热值。 WCs气化产生的废热被用于AD的保温，从而提高了AD气化系统的整体能效。当AD与气化的处理能力比低于0.4时，集成的AD-气化系统可以与自备热回收系统一起运行。 （C）2018 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Energy》 |2018年第1期|214-222|共9页
  • 作者

    Zhang Jingxin; Kan Xiang; Shen Ye; Loh Kai-Chee; Wang Chi-Hwa; Dai Yanjun; Tong Yen Wah;

  • 作者单位

    Natl Univ Singapore, Environm Res Inst, Singapore, Singapore;

    Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore, Singapore;

    Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore, Singapore;

    Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore, Singapore;

    Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore, Singapore;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai, Peoples R China;

    Natl Univ Singapore, Environm Res Inst, Singapore, Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Anaerobic digestion; Gasification; Heat energy recovery; Waste-to-Energy;

    机译：厌氧消化;气化;热能回收;废物转化为能源;

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