第40卷第1期
1月
2018年
能源与环保
China Energy and Environmental Protection
Vol.40No.1
Jan.
2018
含氯废弃物焚烧烟气中HCI回收及提浓研究
文晶
（三峡大学电气与新能源学院，湖北宜昌443002）
摘要：根据不同工艺条件下产生的含氰废弃物楚烧的工艺特点，设计了黄烧后烟气中HCI的吸收、解吸、提浓、精制工艺流程，制备高品质盐酸，吸收后的烟气经碱洗后可达标排放。烟气中HCI的吸收工艺为：一级等温吸收→多级绝热吸收一→尾气碱洗；杂质含量较少的稀盐酸的提浓精制工艺：稀盐酸级过滤一→高纯气体提浓一→HCI吸收；杂质含量较多的稀盐酸的提浓精制工艺：变压精馏解吸提浓一→ HCI再吸收及加盐精馈解吸提浓一→HCI在吸收过程，该提浓精制技术避免了单纯精馅存在的HCI提
浓困难、盐酸品质较差等弊端，适宜工业化推广应用。关键词：含氯废弃物；盐酸；吸收；提浓
中围分类号：X78
文献标志码：A
文章编号：10030506(2018)01007105
StudyonrecoveryandconcentrationofHClinfluegasof
incineration of chlorine-containing waste
Wen Jing
(Institule of Electrical and New Energy,China Three Gorges Uninersity,Yichang443002,China)
Abstract : In this paper,the absorption, desorption, enrichment and refining process of HCl in flue gas after incineration were studied ac-cording to the process characteristics of chlorine waste incineration produced under different process conditions, The high quality hydro chloric acid was prepared, alkaline washing can be up to standard discharge standards. The absorption process of HCl in flue gas is:first order isothcrmal absorption-multi-stage adiabatic absorption-tail gas caustic washing; dilute hydrochloric acid with less impurity concen-tration refining process : dilute hydrochloric acid primary filtration-high purity gas enrichment-HCl absorption;impurity content of dilute hydrochloric acid refinement refining process : that is, pressure distillation desorption concentrated-HCl re-absorption and salt distillation desorption enrichment-HCI in the absorption process,the refinement of refined technology to avoid a simple distillation of the existence of HCl enrichment difficulties, poor quality of hydrochloric acid and other defects ,suitable for industrial applications
Keywords:chlorine-containing waste hydrochloric acid absorption enrichment ;hydrochloric acid;absorption; concentration
引言 0
聚氟乙烯是一种高分子有机聚合材料，分子中含有将近58%的氯，聚氯乙烯具有质轻、可塑性强等多种优点，在国内得到了广泛应用。自2007年以来，我国PVC的需求量以42万a的速度增长。 PVC制备过程的氯化、精馏、聚合等工艺会产生大量的含氟废弃物，这些含氯废弃物具有种类多、结构
复杂、毒性大、危险性高、难于自然降解等间题[12]。我国每年能有效回收的废弃PVC材料及制备过程产生废弃物仅有20%左右（以产量计)，未回收的含氯废弃物给生态环境带来了难以逆转的负面影响[3]。
目前，对含氟废弃物的资源化回收技术主要是热处理技术，包括楚烧、裂解和气化等，这种方法在短时间内能达到减容、减量等目的。楚烧可将含氯
收稿日期：2017-08-10；责任编辑：郭海露
DOI: 10. 19389/j. cnki. 1003 0506. 2018. 01.014
作者简介：文晶（1996一），女，山西怀仁人，研究方向为电气工程及其自动化。
引用格式：文晶.含氯度弃物烧烟气中HCI回收及提浓研究[J].能源与环保，2018,40(1)：71-75.
centration of HCl in flue gas ef incineration of chlorine-containing waste[J]. China Energy and Environ
Wen Jing. Study on recovery and co mental Protection,2018,40(1) :71-75.
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