Acid tar oil treating method

A process for treating the acidic tar, which is the by-product in preparing ammonium sulfate from N2 in gas generated in coking plant and has severe environmental pollution features that its another by-product, diluted ammonia water is used to neutralize the sulfuric acid in said acidic tar and reco...

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Bibliographische Detailangaben
Hauptverfasser: LIANG JIANG, XUEPAN LI, SHANMING JIANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A process for treating the acidic tar, which is the by-product in preparing ammonium sulfate from N2 in gas generated in coking plant and has severe environmental pollution features that its another by-product, diluted ammonia water is used to neutralize the sulfuric acid in said acidic tar and recover tar. 本发明是关于酸焦油的处理方法,酸焦油是焦化厂为了回收煤气中的氮气采用半直接法生产硫酸铵的附产物,对人类生存环境会造成严重的危害,其治理是一个令人头痛的问题,是长期困扰焦化行业的技术难题。本发明的公开完全解决了这一技术难题。本发明采用的主要技术措施是用生产硫酸铵的另一种附产物-稀氨水与酸焦油中的硫酸进行中和反应,以消除酸焦油中的酸对环境造成的污染,同时回收酸焦油中的焦油。用本发明的方法处理酸焦油,既可取得非常好的社会效益,又可取得非常好的经济效益,巧妙地解决了困挠焦化行业多年的技术难题。