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影响烟气脱硫工艺技术路线选择的主要因素

影响烟气脱硫工艺技术路线选择的主要因素

Main factors affecting the selection of flue gas desulfurization process route
烟气脱硫工艺技术路线选择涉及技术、经济、总量减排、法律法规等多方面因素,应参考以下几个方面:
The selection of flue gas desulfurization process involves many factors such as technology, economy, total emission reduction, laws and regulations, etc. the following aspects should be referred to:
(1)排放标准要求。满足排放标准是基本要求。不论是已修订实施的火电厂排放标准,还是新修订发布的钢铁烧结球团工业排放标准,都是国家强制性标准,烟气脱硫工艺满足达标排放的要求。
(1) Emission standard requirements. Meeting emission standards is the basic requirement. Both the revised and implemented emission standards for thermal power plants and the newly revised and issued industrial emission standards for iron and steel sintering pellets are national mandatory standards, and the flue gas desulfurization process meets the emission requirements.
(2)技术政策要求。满足国家相关烟气脱硫技术政策、工程技术规范等要求,是脱硫设施、稳定、运行的重要保证。
(2) Technical policy requirements. Meeting the requirements of relevant national flue gas desulfurization technical policies and engineering technical specifications is an important guarantee for the, stability and operation of desulfurization facilities.
(3)总量控制和按排污量收费要求。我国目前对二氧化硫实施总量控制,这要求脱硫设施有更高的脱硫效率。我国的排污收费原则是排污即收费,《排污费征收标准管理办法》规定每排放一污染当量的二氧化硫征收0.6元。
(3) Total amount control and charging according to pollutant discharge. At present, China implements total amount control of sulfur dioxide, which requires desulfurization facilities to have higher desulfurization efficiency. China's sewage charging principle is that sewage is charged. The administrative measures for the collection standards of sewage charges stipulates that 0.6 yuan will be charged for each emission of sulfur dioxide equivalent to pollution.
(4)可靠性要求。国家环保部环办[2010]91号文明确要求火电企业铅封或取消烟气旁路,以提高脱硫设施的利用率。这对脱硫装置的运行可靠性提出了更高要求。没有大型工程化的业绩、没有连续稳定运行可靠数据的脱硫工艺也难以得到市场认可。
(4) Reliability requirements. The Ministry of environmental protection of the people's Republic of China [2010] No. 91 civilization clearly requires thermal power enterprises to seal or cancel flue gas bypass to improve the utilization rate of desulfurization facilities. This puts forward higher requirements for the operation reliability of desulfurization unit. The desulfurization process without large-scale engineering performance and reliable data of continuous and stable operation is also difficult to be recognized by the market.
(5)循环经济要求。发展循环经济将是我国今后长期的经济发展之路。脱硫工艺的选择应在去除二氧化硫的同时,尽量避免或减少产生二次污染,实现副产物资源化和综合利用将是对脱硫工艺的更高要求和技术发展方向。大量产生固废的脱硫工艺不符合循环经济的要求,将在一定程度上受到制约。
(5) Requirements of circular economy. Developing circular economy will be the long-term road of economic development in China in the future. The selection of desulfurization process should not only remove sulfur dioxide, but also avoid or reduce secondary pollution as far as possible. Realizing the resource utilization and comprehensive utilization of by-products will be the higher requirements and technical development direction of desulfurization process. The desulfurization process that produces a large amount of solid waste does not meet the requirements of circular economy and will be restricted to a certain extent.
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