首页|焦化干熄焦装置新型制冷脱硫工艺分析

焦化干熄焦装置新型制冷脱硫工艺分析

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二氧化硫常压下的沸点为-10℃,与常温差异并不大,因此可以通过制冷的方式,将二氧化硫液化分离,实现减少大气污染的目标.烟囱烟气一般温度较高,而制冷后的冷空气可以作为低温源与高温烟气换热从而形成一个循环冷却系统,降低制冷装置的能耗.干熄焦生产中,将制冷脱硫工艺与传统的小苏打干法脱硫工艺比较,通过计算发现,小苏打干法脱硫适合高温烟气及硫含量低的场合,而制冷脱硫工艺在烟气温度低、烟气硫含量高的场合中具有明显的优势.
Analysis of a New Refrigeration and Desulfurization Process for Coking CDQ Unit
The boiling point of sulfur dioxide under normal pressure is-10℃,which is not significantly different from room temperature.Therefore,sulfur dioxide can be liquefied and separated through refrigeration to achieve the goal of reducing air pollution.The chimney flue gas generally has a high temperature,and the cooled cold air can be used as a low-temperature source to exchange heat with the high-temperature flue gas,forming a circulating cooling system and reducing the energy consumption of the refrigeration device.Comparing the refrigeration desulfurization process with the traditional baking soda dry desulfurization process,it is found through calculation that baking soda dry desulfurization is suitable for high-temperature flue gas and low sulfur content situations,while the refrigeration desulfurization process has obvious advantages in low flue gas temperature and high sulfur content situations.

sulfur dioxideliquefactionrefrigerationcirculating cooling

苗振华、董俊山、张守申

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山东泰山钢铁集团有限公司,山东 济南 271100

山东省济南生态环境监测中心,山东 济南 271100

二氧化硫 液化 制冷 循环冷却

2024

山东冶金
山东金属学会

山东冶金

影响因子:0.176
ISSN:1004-4620
年,卷(期):2024.46(6)