because the coke oven gas of naphthalene is volatile andsublimation of physical properties, to make the naphthaleneanalysis the condition of sampling control of ammonia, hydrogensulfide gas and chemical composition analysis of sampling controlmore strictly. gas of naphthalene are greatly influenced byenvironmental temperature, the sampling in multiple link such as alink control is bad, the results of the analysis will appear largedeviation, make the naphthalene content analysis accuracy affectedby large, points.
toenhance the accuracy of determination of naphthalene content incoke oven gas,  xiang ying eagle analysis technology co., ltd.using gc7990 gas chromatography determination of naphthalene in gassampling tube in the process of gas sampling, sampling temperature,sampling flow velocity, acid bottle water bath temperature control,sampling time and sampling cycle and other factors. through thecontrastive analysis of the different experimental conditions, thesampling process condition control has a great influence on theaccuracy of determination of naphthalene, and to improve thedetermination method. by using the improved analysis method fordetermination of naphthalene in actual data to the productionsystem of gas balance calculation, the calculation of basicbalance.
由于焦炉煤气中的萘所具有易挥发、升华的物理特性,使萘分析取样的条件控制较煤气中的氨、硫化氢和化学组分分析的取样控制更严。煤气中的萘受环境温度影响较大,在取样的多个环节中如一个环节控制不好,所分析的结果都会出现较大偏差,使萘含量分析准确度受到很大影响,分。
     为提高焦炉煤气中萘含量测定的准确度,滕州市翔鹰分析技术有限公司采用gc7990气相色谱测定煤气中萘时气体取样过程中取样管的制作、取样温度、取样流速、硫酸瓶的水浴温度控制、取样时间和取样周期等各种影响因素。通过不同实验条件的对比分析,说明取样过程各条件控制对萘测定准确度有很大影响,并对测定方法进行改进。运用改进后的分析方法所测定的实际数据对生产系统煤气中萘进行了平衡计算,计算结果基本平衡。

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滕州市翔鹰分析技术有限公司
王晓莹
15564685258
滕州市平行路