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首页> 外文期刊>Energy >Comparison of IGCC (integrated gasification combined cycle) and CFB (circulating fluidized bed) cogeneration plants equipped with CO_2 removal
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Comparison of IGCC (integrated gasification combined cycle) and CFB (circulating fluidized bed) cogeneration plants equipped with CO_2 removal

机译：IGCC（整体气化联合循环）和CFB（循环流化床）热电联产装置的对比

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摘要

The introduction of CO_2 removal processes causes usually generation of waste heat. As the temperature of waste heat carriers is usually moderately high (ca. 100 ℃), there is a potential possibility for using them in district heating systems. The main goal of present paper is thus the energy and CO_2 emission analysis of CHP (combined heat and power production) plants equipped with CO_2 removal and utilizing waste heat generated within the plant. First case is dealing with the CFB (circulating fluidized bed) plant equipped with post-combustion chemical CO_2 absorption. The second case is dealing with an IGCC (integrated gasification combined cycle) equipped with the pre-combustion CO_2 removal by physical absorption. Both plants have been modeled on the Thermoflex software. The reference, CFB-based CHP plant without CO_2 removal has also been modeled. The obtained results indicate that IGCC plant has better thermodynamic indicators than CFB-based unit. Moreover, the CO_2 emission considering system interconnections within the electricity production network is negative for both plants equipped with CCS (carbon capture and storage). The highest exergy efficiency is achieved for the reference CFB plant. The decrease of exergy efficiency caused by CO_2 capture and compression is ca. 8 percentage points, but in case of IGCC CHP plant the exergy efficiency is only 3 percentage points lower than for the reference system.
机译：引入CO_2去除工艺通常会产生废热。由于废热载体的温度通常较高（大约100℃），因此有可能在区域供热系统中使用它们。因此，本文的主要目标是对配备了CO_2去除装置并利用工厂内部产生的余热的CHP（热电联产）工厂进行能源和CO_2排放分析。第一种情况是处理配备了燃烧后化学吸收CO_2的CFB（循环流化床）设备。第二种情况是处理IGCC（整体气化联合循环），该循环装备有通过物理吸收去除燃烧前CO_2的装置。两座工厂均已在Thermoflex软件上建模。还对无CF_2去除的基于CFB的CHP参照工厂进行了建模。所得结果表明，IGCC装置比基于CFB的装置具有更好的热力学指标。此外，考虑到电力生产网络中系统互连的CO_2排放，对于配备CCS（碳捕集与封存）的两家工厂都是不利的。参照CFB装置可获得最高的火用效率。由CO_2捕集和压缩引起的（火用）效率降低大约为。 8个百分点，但对于IGCC CHP工厂，其火用效率仅比参考系统低3个百分点。

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  • 来源
    《Energy》 |2013年第1期|86-96|共11页
  • 作者

    Marcin Liszka; Tomasz Malik; Michal Budnik; Andrzej Ziebik;

  • 作者单位

    Institute of Thermal Technology, Silesian University of Technology. 44-100 Gliwice, Konarskiego 22, Poland;

    Institute of Thermal Technology, Silesian University of Technology. 44-100 Gliwice, Konarskiego 22, Poland;

    Institute of Thermal Technology, Silesian University of Technology. 44-100 Gliwice, Konarskiego 22, Poland;

    Institute of Thermal Technology, Silesian University of Technology. 44-100 Gliwice, Konarskiego 22, Poland;

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

    ICCC; CFB; CHP; CCS; Waste heat;

    机译：ICCC;CFB;CHP;CCS;余热;

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