高含油煤气化废水除油处理工艺

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英文篇名：Desulfurization and treatment process of high oily coal gasification wastewater 作者：白天江 英文作者：BAI Tianjiang;Shaanxi Institute of Petrochemical Research and Design; 关键词：喹啉 ; 渗透汽化 ; 动力学模型 ; 工艺设计 英文关键词：Quinoline;;Pervaporation;;Kinetic model;;Process design 中文刊名：JKGH 英文刊名：Science & Technology in Chemical Industry 机构：陕西省石油化工研究设计院; 出版日期：2019-04-25 出版单位：化工科技 年：2019 期：v.27 基金：陕西省科技统筹创新工程计划项目(2016KTZDGY09-08) 语种：中文; 页：JKGH201902008 页数：6 CN：02 ISSN：22-1268/TQ 分类号：34-39

摘要

在低压中温的条件下,采用新型催化剂钛硅分子筛对喹啉模拟高含油煤气化废水除油渗透汽化处理工艺进行研究,得出了催化剂再生条件和最佳工艺条件,并对反应动力学进行了探究。结果表明,在初始pH≈8,t=150℃,催化剂投加量为5 g/L,H_2O_2投加量为20 mL/L的最佳工艺条件下反应60 min,COD去除率为88.3%,喹啉转化率为98.6%;催化剂的重复利用性能优异,经600℃高温焙烧后,失活催化剂孔容、孔比表面积和比表面积均能恢复到新鲜催化剂水平;反应动力学模型结果表明,H_2O_2的投加量是影响反应速率的关键因素,为实际高含油煤气化废水处理提供了理论依据。
        Under the condition of low pressure and medium temperature,the new catalyst titanium silicalite was used to study the desulfurization and pervaporation process of quinoline simulated high oil-gaslized coal gasification wastewater.The catalyst regeneration conditions and optimum process conditions were obtained,and the reaction kinetics was carried out.The results showed that the initial pH was about 8,the temperature was 150 ℃,the catalyst dosage was 5 g/L,and the H_2O_2 dosage was 20 mL/L.The reaction was carried out for 60 min,and the COD removal rate was 88.3%.The quinoline conversion rate is 98.6%,the catalyst has excellent recyclability.After calcination at 600 ℃,the pore volume,pore specific surface area and specific surface area of the deactivated catalyst can be restored to the level of fresh catalyst.The reaction kinetic model results show the dosage of H_2O_2 is the key factor affecting the reaction rate,which provides a theoretical basis for the treatment of actual high-oil coal gasification wastewater.

引文

[1] 李博,朱继源,张鹏凯.煤气化装置高氨氮废水处理工艺优化与改造[J].石油石化绿色低碳,2018,3(5):64-68.
    [2] 杨昊.煤气化废水处理技术现状及发展趋势[J].化工管理,2017(33):96-98.
    [3] YAP P S,LIM T T.Effect of aqueous matrix species on synergistic removal of bisphenol-A under solar irradiation using nitrogen-doped TiO2/AC composite[J].Applied Catalysis B:Environmental,2011,101(4):709-717.
    [4] 王卓,张潇源,黄霞.煤气化废水处理技术研究进展[J].煤炭科学技术,2018,46(9):19-30.
    [5] 许应芊,朱雷,魏卡佳,等.负载型分子筛催化臭氧氧化深度处理煤气化废水效果研究[J].煤炭科学技术,2018,46(9):54-61.
    [6] 陈天翼,李根,王卓,等.粉末活性炭-陶瓷膜臭氧催化氧化深度处理煤气化废水研究[J].水处理技术,2018,44(2):80-83,99.
    [7] CARMEN S D R,CARABINEIRO S A C,MALDONADO-HóDAR F J,et al.Wet peroxide oxidation of dye-containing wastewaters using nanosized Au supported on Al2O3[J].Catalysis Today,2017,280:165-175.
    [8] ZHAI J,JIANG C H,CAO G Q,et al.Treatment of enzymolysis wastewater by centrifugation coagulation fenton reagent oxidation adsorption process[J].Meteorological and Environmental Research,2013(9):43-46.
    [9] 刘峰,乔瑞平,李海涛,等.高含油煤气化废水除油预处理的工艺研究[J].现代化工,2016(1):115-118.
    [10] 史作磊,孟冬,闫卫林,等.混凝法预处理煤气化废水实验研究[J].煤化工,2012,40(6):30-32.
    [11] 乔丽丽,耿翠玉,乔瑞平,等.煤气化废水处理方法研究进展[J].煤炭加工与综合利用,2015(2):18-27.
    [12] 付强强.煤气化废水水质分析及深度处理工艺研究[D].青岛:青岛科技大学,2016.