含稀硝酸己二胺有机废水焚烧时的NO_x排放特性  

NO_x EMISSION FROM INCINERATION OF ORGANIC WASTE WATER CONTAINING HEXAMETHYLENEDIAMINE AND DILUTE HNO_3

作　　者：别如山[1] 樊庆锌[1] 梁志华[1] 杨励丹[1] 周定[1] 

机构地区：[1]哈尔滨工业大学环境科学与工程系,黑龙江哈尔滨150001

出　　处：《化工学报》2002年第9期989-993,共5页CIESC Journal

摘　　要：Experiments were conducted in a fluidized bed with I.D.of 81?mm and height of 1600?mm to investigate NO x emissions from incineration of waste water,which contains hexamethylenediamine of 4.5% and dilute HNO 3 of 1.25%.The result shows that decomposition products of dilute HNO 3 water solution are NO and NO 2.NO is the main product,which represents more than 90% of total NO x.The conversion ratio of HNO 3 converted to NO x is about 95%～96%.The results of incinerating organic waste water in a temperature range from 800?℃ to 950?℃ shows that,under non-staged combustion condition,the de-NO x ratio is only about 46%～61% at oxygen concentration of 11%.Staged combustion was adopted to further decrease NO x emission.The experimental data indicate that the NO x emission can be reduced very efficiently,the de-NO x ratio is increased up to 86%-93%.It was found that the presence of hexamethylenediamine is positive for reduction of NO x emission.950?℃ is the optimal operation temperature for incineration of the examined waste water,concerning the NO x reduction.Experiments were conducted in a fluidized bed with I.D.of 81?mm and height of 1600?mm to investigate NO x emissions from incineration of waste water,which contains hexamethylenediamine of 4.5% and dilute HNO 3 of 1.25%.The result shows that decomposition products of dilute HNO 3 water solution are NO and NO 2.NO is the main product,which represents more than 90% of total NO x.The conversion ratio of HNO 3 converted to NO x is about 95%～96%.The results of incinerating organic waste water in a temperature range from 800?℃ to 950?℃ shows that,under non-staged combustion condition,the de-NO x ratio is only about 46%～61% at oxygen concentration of 11%.Staged combustion was adopted to further decrease NO x emission.The experimental data indicate that the NO x emission can be reduced very efficiently,the de-NO x ratio is increased up to 86%-93%.It was found that the presence of hexamethylenediamine is positive for reduction of NO x emission.950?℃ is the optimal operation temperature for incineration of the examined waste water,concerning the NO x reduction.

关 键 词：稀硝酸 有机废水 焚烧 排放特性 己二胺 废水处理 尼龙66 高分子工业 废水处理 氮氧化物 

分 类 号：X783.203[环境科学与工程—环境工程]