石油与天然气化工2023，Vol.52Issue(6)：23-29,38,8.DOI:10.3969/j.issn.1007-3426.2023.06.004
控制冷凝法对烟气中三氧化硫冷凝分离效率研究
Study on condensation separation efficiency of sulfur trioxide in flue gas by controlled condensation method
摘要
Abstract
Objective The effects of different operating parameters and flue gas conditions on the separation efficiency of sulfur trioxide in flue gas by controlled condensation method(CCM)were studied to avoid the corrosion perforation of the device and the generation of high-salt sewage due to the high mass concentration of sulfur trioxide in flue gas.Methods The effects of different operating parameters and flue gas conditions on the condensation separation efficiency of sulfur trioxide in flue gas were studied by using the self-developed sulfur trioxide in flue gas control condensation efficiency evaluation device.Results The change of flue gas flow rate and sulfur trioxide mass concentration in flue gas had a significant effect on the condensation separation efficiency of sulfur trioxide.The introduction of quartz filter cotton at the end of the condensation system could obviously eliminate the influence of sulfur trioxide mass concentration change in flue gas on the condensation separation efficiency of sulfur trioxide.When the temperature of the flue gas sampling pipeline was higher than the dew point of the acid mist and the temperature of the condensation pipe was between the dew point of the acid mist and the dew point of the water vapor,the holding temperature of the flue gas sampling pipeline and the temperature change of the condensation pipe had little effect on the condensation separation efficiency of sulfur trioxide in the flue gas.The change of sulfur dioxide mass concentration in flue gas has little effect on the condensation separation efficiency of sulfur trioxide in flue gas.Conclusion According to the established sulfur trioxide condensation separation method,the separation efficiency for sulfur trioxide is greater than 95%.关键词
烟气/SO3/酸雾/控制冷凝法Key words
flue gas/sulfur trioxide/acid mist/controlled condensation method引用本文复制引用
赵西,温崇荣,李金金..控制冷凝法对烟气中三氧化硫冷凝分离效率研究[J].石油与天然气化工,2023,52(6):23-29,38,8.基金项目
中国石油西南油气田公司博士后基金"克劳斯尾气氧化吸收工艺焚烧炉中硫化物燃烧动力学研究"(B202120) （B202120）
中国石油天然气股份有限公司科学研究与技术开发项目"含硫天然气硫磺回收及氧化吸收尾气处理关键技术研究"(2021 DJ2603) （2021 DJ2603）
