基于Aspen Plus的废水湿式氧化处理工艺模拟

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英文篇名：Simulation of wet air oxidation treatment process based on Aspen Plus 作者：吴军亮 ; 董振海 ; 宋红 ; 姚慧强 ; 田鸿超 英文作者：WU Jun-liang;DONG Zhen-hai;SONG Hong;YAO Hui-qiang;TIAN Hong-chao;Sinochem Environment Holdings Limited; 关键词：湿式氧化 ; Aspen ; Plus模拟 ; 热平衡 英文关键词：wet air oxidation;;Aspen Plus simulation;;heat balance 中文刊名：精细与专用化学品 英文刊名：Fine and Specialty Chemicals 机构：中化环境控股有限公司; 出版日期：2019-07-21 出版单位：精细与专用化学品 年：2019 期：07 语种：中文; 页：25-29 页数：5 CN：11-3237/TQ ISSN：1008-1100 分类号：X703

摘要

利用Aspen Plus模拟软件建立了废水湿式氧化处理工艺流程稳态模型。提出了以Ryield反应器和RGibbs反应器组合模拟湿式氧化反应的方法。对比工业装置运行数据和模拟计算结果,验证了工艺模型的可靠性,并核算出工业化装置中换热器的总传热系数为372W/(m~2·℃)。通过灵敏度分析工具分析了废水COD、COD去除率、废水流量和反应压力等因素对湿式氧化装置运行过程中热量平衡的影响,模拟结果表明,不同压力下达到热平衡状态时所进水COD范围为(15～55)g/L(COD去除率为1);当进水流量10m~3/h,COD 100g/L时,热平衡的COD去除率界限是0.3～0.55;进料废水总COD量200kg/h时,热平衡的废水流量是(3～14)m~3/h。模拟可以为湿式氧化工艺工程设计及运行提供数据支持。
        A steady state model of the wet air oxidation process was established using Aspen Plus.A method of simulating wet oxidation reaction with Ryield reactor and RGibbs reactor was proposed.The reliability of the process model was verified by comparing the data of industrial plant and simulation calculation.The total heat transfer coefficient of the heat exchanger in the industrialized device was calculated to be 372 W/(m~2·℃).The effects of COD,COD removal,wastewater flow and reaction pressure on heat balance during operation of wet air oxidation plant were analyzed by means of sensitivity analysis tool.The simulation results showed that the thermal equilibrium COD range under different pressures was 15 g/L to 55 g/L(COD removal rate was 1);the thermal equilibrium COD removal rate was 0.3 to 0.55 at wastewater flow 10 m~3/h,COD 100 g/L;when the wastewater COD flow was 200 kg/h,the heat equilibrium wastewater flow was 3 m~3/h to 14 m~3/h.Data support was provided for the design and operation of wet air oxidation process engineering.

引文

[1] Arena F,Di Chio R,Gumina B,et al.Recent advances on wet air oxidation catalysts for treatment of industrial wastewaters[J].Inorganica Chimica Acta,2015,431:101-109.
    [2] 雷燕,雷必安,杨其文,等.催化湿式氧化处理城市污水厂污泥的研究进展[J].现代化工,2015,35(3):41-44.
    [3] 蔡先明,秦侠,张丽,等.催化湿式氧化法处理垃圾渗滤液[J].环境工程学报,2016,10(1):189-193.
    [4] 邵红,王冬梅,李颖慧,等.改性膨润土处理造纸废水的研究[J].环境科学与技术,2004,27(3):63-64.
    [5] Mundale V D,Joglekar H S,Kalam A,et al.Regeneration of spent activated carbon by wet air oxidation[J].Can J Chem Eng,1991,69(10):1149-1158.
    [6] 杨民,杜书,王贤高,等.催化湿式氧化处理碱渣废水的研究[J].环境工程,2001,19(1):13-15.
    [7] 张晓,陈晨,程婷,等.铈铁氧化物催化湿式氧化医药废水研究[J].水处理技术,2019,45(5):47-51.
    [8] Hurwitz E,Dundas W A.Wet oxidation of sewage sludge[J].J WPCF,1960,32(9):918-929.
    [9] Li L.Generalized kinetic model for wet oxidation of organic compounds[J].J AICHE,1991,37(11):298-305.
    [10] Mishra V S,Mahajani V V,Joshi J B.Wet air oxidation[J].Industrial & Engineering Chemistry Research,1995,34(1):2-48.
    [11] 王伟,商玉坤,武建军.基于Aspen Plus的褐煤热解过程模拟[J].化学工业与工程,2011,28(3):49-53.
    [12] 孙兰义.化工流程模拟实例-Aspen Plus教程[M].北京:化学工业出版社,2012.
    [13] 孙文静,卫皇曌,李先如,等.催化湿式氧化处理助剂废水工程及过程模拟[J].环境工程学报,2018,12(8):2421-2428.
    [14] 肖晔远,史云鹏.湿式氧化处理污水的应用现状与展望[J].工业用水与废水,2001,32(6):5-7.
    [15] 李初福,门卓武,翁力,等.固体热载体回转窑煤热解工艺模拟与分析[J].煤炭学报,2015,40(S1):203-207.
    [16] 汪晓军,肖锦.有机废水的热值及焚烧处理能耗分析[J].环境工程,1990,8(6):9-11.
    [17] Zimmermann,F J.New Waste disposal process[J].Chem Eng,1958,56:117-120.