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《垃圾焚烧厂最佳可用技术参考文件》2018年版 4.5章 第一部分(待续) 学习笔记(一)

2020-02-12 11:30来源:无锡华星东方电力环保关键词:烟气净化工艺除尘技术华星东方收藏点赞

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4.5.3.4.3 获得环境效益

Increased reliability in acid gas (HCl, HF, SO2) emission reductions down to levels at the lower end of the ranges achievable with wet scrubbing (see Section 4.5.3.1).

增加了酸性气体(HCL,HF,SO2)减排的可靠性,能达到使用湿法洗涤所能达到的最低限度。(详见4.5.3.1章节)

The consumption of sorbent and the related production of residues in the upstream dry system may be decreased due to the high efficiency and low stoichiometric factor of the polishing scrubber.

吸收剂的消耗量和上游干法脱酸系统中的副产物可以减少,因为抛光洗涤塔的高效脱除能力和较低的化学计量比(钙酸比,钠酸比等等)。

Environmental performance and operational data

4.5.3.4.4 排放性能和运行数据

See Section 4.5.3.1.

详见4.5.3.1。

Cross-media effects

4.5.3.4.5 跨介质影响(增加的能源消耗或其他影响)

See Section 4.5.3.1.

详见4.5.3.1。

Technical considerations relevant to applicability

4.5.3.4.6 技术适用性的考虑

See Section 4.5.3.1.

详见4.5.3.1。

Economics

4.5.3.4.7 经济因素

The typical investment cost reported for a scrubber sized for treating a 100 000 Nm3/h gas flow is EUR 2 million including circulation pumps. An additional investment of around EUR 100 000 may also be required for a reheater or fiberglass-reinforced plastic stack pipe.

报告称处理100000Nm3/h烟气量的湿法洗涤塔的典型投资成本在200万欧元,包括了循环泵。再加热器或玻璃钢烟囱再需10万欧元的额外投资。

Operating costs have been reported as EUR 10–15/h for electricity (additional fan pressure of typically 1 200 Pa) and circulation pump operation. The NaOH cost depends on the design.

报告称运行成本为10-15欧元/小时,用于电耗(额外的引风机压损通常为1200pa)和循环泵的运行。NaOH的运行成本基于设计情况。

See also Section 4.5.3.1.

详见4.5.3.1。

Driving force for implementation

4.5.3.4.8 实施动力(该技术的优势)

See Section 4.5.3.1 for the driving forces for the use of wet FGC in general.

详见4.5.3.1章节的湿法烟气净化的动因。

Where emissions of acid gases are high or variable, the addition of a polishing stage may be driven by legislation requiring improved flue-gas cleaning related to peak concentrations of pollutants. The technique is thus most suited to wastes that have high and variable concentrations of chlorine or other acid-forming components (e.g. hazardous wastes or MW that includes industrial wastes).

当酸性气体的入口浓度高且波动较大时,可以通过立法增加抛光(湿法)段来改善烟气净化应对峰值浓度的污染物。因此,该技术非常适合处理哪些具有高入口浓度且波动较大的含有氯化物或其他酸性化合物的垃圾(如:危险废弃物或包括工业废弃物的市政垃圾)。

The addition of a polishing stage may also be driven by savings in reagent costs in the upstream dry flue-gas cleaning system.

节约上游干法烟气净化系统的吸收剂运行成本也是增加抛光(湿法)段的动因之一。

Example plants

4.5.3.4.9 工厂案例

Many plants in Scandinavia and WTE ACCAM Busto Arsizio (IT) (IT01); Usine de Fort-De-

France (FR) (FR46); Halluin (FR) (FR92).

斯堪的纳维亚的很多焚烧厂(包含挪威、瑞典和丹麦)和意大利的ACCAM Busto Arsizio焚烧厂;法国Usine de Fort-De-France焚烧厂;法国Halluin焚烧厂;

Reference literature

4.5.3.4.10 参考文献

[ 64, TWG 2003 ], [ 97, Denmark et al. 2015 ]

4.5.3.5 Recirculation of FGC residues in the FGC system

4.5.3.5 物料循环流化烟气净化系统

Description

4.5.3.5.1 说明

Residues collected in the bag filters used for dry, semi-wet and similar (but not wet) FGC

systems (see also Sections 4.5.3.2, 4.5.3.3 and 4.5.3.8) usually contain a significant proportion of unreacted flue-gas treatment reagents, as well as the fly ash and other pollutants removed from the gas stream. A proportion of the accumulated residues can be reactivated and recirculated within the FGC system.

从干法,半干法或类似烟气净化系统(除了湿法)中布袋除尘收集下来的副产物(详见4.5.3.2,4.5.3.3.和4.5.3.8章节)通常包括了比例较高的未与烟气反应的吸收剂,以及从烟气中去除的飞灰和其他的污染物。一部分副产物可以通过烟气净化系统的再循环系统进行反应。


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