蒽醌法过氧化氢装置的生产控制及技术改造

发布时间：2018-03-24 09:22

本文选题：蒽醌法　切入点：过氧化氢　出处：《武汉工程大学》2016年硕士论文

【摘要】：过氧化氢是一种普遍使用的非常重要的绿色化工原料,广泛应用到织物的漂白、化学品的合成和环保等领域。过氧化氢工业化生产的主要方法有:蒽醌法、电解法、氢氧合成法和异丙醇法。论文以蒽醌法过氧化氢工业化装置为基础,对其生产控制和技术改造两个方面进行了研究。在深入了解过氧化氢装置的主要流程、设备、工艺指标的基础上,通过研究工艺控制方法及异常工况的处理,不同负荷条件下的工艺参数,确定了合适的控制范围;通过研究过氧化氢的纯化工艺,确定了其运行及工艺控制参数,总有机碳含量降低至60 ppm以内。通过研究实用性强的安全联锁系统和配制釜温度自控方法,提升了装置的安全及自控水平;通过增加污水预处理措施使出水COD由1000~1300 mg/L下降至300~500 mg/L;通过回收蒸汽冷凝水再利用,及应用变频技术,使产品蒸汽消耗由165 kg/t下降到150 kg/t、电力消耗由155~160 kW·h/t下降到140~145 kW·h/t;采用高效溶剂吸收法回收氧化尾气中的重芳烃,其消耗由5.5 kg/t下降至4.0 kg/t;对氧化残液进行回收处理,每年增加产量1000t以上。
[Abstract]:Hydrogen peroxide (H _ 2O _ 2) is a very important green chemical raw material widely used in the fields of fabric bleaching, chemical synthesis and environmental protection. The main methods for the industrial production of hydrogen peroxide are anthraquinone method, electrolysis method, etc. Based on the industrial plant of anthraquinone hydrogen peroxide, the production control and technical transformation of hydrogen peroxide were studied in this paper. In order to understand the main process and equipment of hydrogen peroxide plant, the main process of hydrogen peroxide synthesis and isopropanol method were studied in this paper. On the basis of the process indexes, the proper control range is determined by studying the process control methods and the treatment of abnormal working conditions, the process parameters under different load conditions, and the purification process of hydrogen peroxide. The operation and process control parameters are determined and the total organic carbon content is reduced to less than 60 ppm. The safety and automatic control level of the device is improved by studying the practical safety interlocking system and the automatic temperature control method of the compounding kettle. By increasing the pretreatment of wastewater, the COD of the effluent was reduced from 1000 to 300 mg/L to 500mg / L, and the steam condensate water was reused and the frequency conversion technology was applied. The steam consumption of the product decreased from 165 kg/t to 150kg / t, the power consumption decreased from 155g / 160kW / t to 140- 145kW / t; the heavy aromatics in the oxidation tail gas were recovered by high-efficiency solvent absorption method, and the consumption decreased from 5.5 kg/t to 4.0 kg / t; the oxidation residue was recovered and treated. The output is increased by more than 1000t per year.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TQ123.6

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