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高压吸收塔
相关语句
  high pressure absorption column
     Analysis and countermeasure for corroded conditions of high pressure absorption column
     高压吸收塔腐蚀的分析及对策
短句来源
     By strengthening the operate steability of high pressure absorption column,increasing the absorption of acetic acid and bromide ion,increasing the separating results of gas and liquid,selecting the material properly,smearing the epoxy pigment SLF-2 and strengthening the determine,the vent gas system operation ratio is increased from 85% to 98%.
     加强高压吸收塔操作平稳性 ,增加对醋酸和溴离子的吸收 ,提高气液分离效果 ,合理选用材质 ,涂抹环氧涂料SLF 2及强化监测等使尾气系统运行率由 85 %上升到 98%。
短句来源
     The corroded conditions of high pressure absorption column in PTA plant were introduced and analysed in detail. After strength vertification,the corresponding anti-corrosion measures were put forward in the aspects of equipment improvement and optimization process operation.
     对PTA装置高压吸收塔腐蚀情况进行了详细介绍和分析,在强度校核后,对设备改进和优化工艺操作等方面提出了相应的防腐对策。
短句来源
  相似匹配句对
     Analysis and countermeasure for corroded conditions of high pressure absorption column
     高压吸收塔腐蚀的分析及对策
短句来源
     HIGH PRESSURE HEAT EXCHANGER
     高压换热器
短句来源
     Audio frequency voltage source
     音频高压电源
短句来源
     The Rubber Lining of Fluorine Absorber
     氟吸收塔的橡胶衬里
短句来源
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The reasons for the corrosion of vent gas system in PTA plant are analysized,the corresponded countermeasures are put forword.The factors which have effect on the corrosion are that the concentration of bromide ion,the concentration of acetic acid,the erode by the solide pellet.Temperature has more effect on the corrosion of acetic acid which contain bromide ion.The higher the temperature is,the higher the concentration of bromide ion is,the more serious the corrosion is.By strengthening the operate steability...

The reasons for the corrosion of vent gas system in PTA plant are analysized,the corresponded countermeasures are put forword.The factors which have effect on the corrosion are that the concentration of bromide ion,the concentration of acetic acid,the erode by the solide pellet.Temperature has more effect on the corrosion of acetic acid which contain bromide ion.The higher the temperature is,the higher the concentration of bromide ion is,the more serious the corrosion is.By strengthening the operate steability of high pressure absorption column,increasing the absorption of acetic acid and bromide ion,increasing the separating results of gas and liquid,selecting the material properly,smearing the epoxy pigment SLF-2 and strengthening the determine,the vent gas system operation ratio is increased from 85% to 98%.

分析该设备产生腐蚀的原因 ,并提出相应的措施。产生腐蚀与溴离子的浓度、醋酸浓度、固体颗粒冲刷等因素有关 ,温度对含溴离子的醋酸发生腐蚀作用影响很大 ,温度越高 ,溴离子浓度越大 ,腐蚀越严重。加强高压吸收塔操作平稳性 ,增加对醋酸和溴离子的吸收 ,提高气液分离效果 ,合理选用材质 ,涂抹环氧涂料SLF 2及强化监测等使尾气系统运行率由 85 %上升到 98%。

The main factors that have effect on the unit consumption of acetic acid are the loss of acetic acid,the load of the plant and the amount of Na+ in the system.The measures to decrease the loss of acetic acid are that the oxidation reaction temperature is 190 ℃,the lay off temperature of the film evaporator is 165~180 ℃,the reflux ratio of solvent dehydrating tower is 3.2~3.4,the reflux temperature is 80~95 ℃,the use amount of high pressure absorber washing water is 2 t/h.The plant should run at full load or...

The main factors that have effect on the unit consumption of acetic acid are the loss of acetic acid,the load of the plant and the amount of Na+ in the system.The measures to decrease the loss of acetic acid are that the oxidation reaction temperature is 190 ℃,the lay off temperature of the film evaporator is 165~180 ℃,the reflux ratio of solvent dehydrating tower is 3.2~3.4,the reflux temperature is 80~95 ℃,the use amount of high pressure absorber washing water is 2 t/h.The plant should run at full load or over load condition as possible as it can,the cleaning soda lye should be drained away and then washed with water completely,the entrance of Na+ in the system should be decreased so that the unit consumption of acetic acid is reduced.

影响醋酸单耗的主要因素是醋酸损失,装置负荷以及系统中Na+的多少。减少醋酸损失的措施为①氧化反应温度190℃左右;②薄膜蒸发器下料的温度为165~180℃;③溶剂脱水塔的回流比为3.2~3.4,回流温度为80~95℃;④高压吸收塔洗涤水的用量为2t/h。装置应尽量在满足负荷或超负荷条件下运行,清洗碱液要排尽并用水彻底冲洗,减少Na+进入系统以此来降低醋酸单耗。

The corroded conditions of high pressure absorption column in PTA plant were introduced and analysed in detail.After strength vertification,the corresponding anti-corrosion measures were put forward in the aspects of equipment improvement and optimization process operation.The countermeasures are improving the material quality grade,reducing the Br~-content in the reaction tail gas,dereasing the erode corrosion.The anti-corrosion results are satisfactory.

对PTA装置高压吸收塔腐蚀情况进行了详细介绍和分析,在强度校核后,对设备改进和优化工艺操作等方面提出了相应的防腐对策。如提高材质等级,减少Br-在反应尾气中的含量,降低冲刷腐蚀,取得了令人满意的防腐效果。

 
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