| 煤气化废水酚氨分离回收系统的强化工艺 |
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| 引用本文： | 刘宁,杨思宇.煤气化废水酚氨分离回收系统的强化工艺[J].工业水处理,2019,39(5):84-87. |
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| 作者姓名： | 刘宁 杨思宇 |
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| 作者单位： | 大唐(北京)水务工程技术有限公司,北京,100033;华南理工大学化学与化工学院,广东广州,510640 |
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| 摘 要： | 开发了一种新型萃取剂乙酸辛酯,并提出酸化萃取—脱酸脱氨—溶剂回收的煤气化废水处理新工艺。研究发现:降低萃取pH可大大提升溶剂的脱酚效率。该工艺用从脱酸脱氨塔采出的CO2酸化废水,将pH降至8左右,废水总酚质量浓度降至200 mg/L;酸化萃取后的废水送入单塔加压汽提侧线脱氨单元。在溶剂回收单元中,该工艺利用碱反萃来回收萃取相中的溶剂。该流程具有较高的脱酚效率,能耗低且粗氨产品中的酚质量浓度低,工业应用前景较好。
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| 关 键 词： | 乙酸辛酯 煤气化废水 酚氨回收 |
Development of a new phenols and ammonia recovery process in coal gasification wastewater |
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| Liu Ning,Yang Siyu.Development of a new phenols and ammonia recovery process in coal gasification wastewater[J].Industrial Water Treatment,2019,39(5):84-87. |
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| Authors: | Liu Ning Yang Siyu |
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| Affiliation: | (Datang(Beijing) Water Engineering Technology Co.,Ltd.,Beijing 100033,China;School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Liu Ning;Yang Siyu(Datang(Beijing) Water Engineering Technology Co.,Ltd.,Beijing 100033,China;School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Keywords: | octyl acetate coal gasification wastewater phenols and ammonia recovery |
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