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  • 陈红硕,刘佳驹,林俊岭,郭怀成.“球磨+浮选”联合工艺处理罐底油泥的效果[J].环境工程学报,2019,13(5):1186-1193.DOI:10.12030/j.cjee.201811020    [点击复制]
  • CHEN Hongshuo,LIU Jiaju,LIN Junling,GUO Huaicheng.Effect of “ball mill + flotation” combined process on treating oily sludge of tank bottom[J].,2019,13(5):1186-1193.DOI:10.12030/j.cjee.201811020   [点击复制]
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“球磨+浮选”联合工艺处理罐底油泥的效果
陈红硕1,刘佳驹1,林俊岭2,郭怀成1
0
(1.北京大学环境科学与工程学院,北京 100871;2.中国石油集团工程设计有限责任公司华北分公司,任丘 062550)
摘要:
针对罐底油泥水洗过程中存在的油相与固相分离难度大、回收的油分中含固率与含水率较高2个关键问题,研究了以“球磨+浮选”为核心的联合工艺的处理效果。对球磨和浮选工艺参数进行优化后,确定球磨段的最优处理条件为球磨温度45 ℃,液固比31,球磨处理时间30 min,球磨药剂用量0.8%;浮选段的最优处理条件为浮选温度55 ℃、液固比41、浮选时间35 min、浮选药剂用量0.6%。结果表明:在最优条件下,处理后罐底油泥的固体出料含油率可降低到0.8%,达到了 SY/T 7301-2016中规定的处理处置要求;处理过程中得到的原油经过油品纯化后,含水率与含固率均低于0.5%,可在炼厂进行回收利用。以“球磨+浮选”为核心的联合工艺较好地解决了罐底油泥在水洗过程中暴露出来的2个问题,为罐底油泥的无害化、资源化处理提供了参考。
关键词:  罐底油泥  球磨+浮选  联合工艺  资源化  无害化
DOI:10.12030/j.cjee.201811020
投稿时间:2018-11-04
基金项目:国家科技重大专项项目22015FY111000; 国家水体污染控制与治理科技重大专项2013ZX07102-006国家科技重大专项项目(22015FY111000); 国家水体污染控制与治理科技重大专项(2013ZX07102-006)
Effect of “ball mill + flotation” combined process on treating oily sludge of tank bottom
CHEN Hongshuo1,LIU Jiaju1,LIN Junling2,GUO Huaicheng1
(1.College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China;2.North China Branch, China National Petroleum Group Engineering Design Co. Ltd., Renqiu 062550, China)
Abstract:
During treating oily sludge of tank bottom by water-based extraction, two key problems, such as difficult separation of oil and solid phases and high water and solid contents of the recovered oil, need to be solved. A combined process based on the core technology of “ball mill + flotation” was used to study its treating effect for this oily sludge. After optimizing the process parameters of ball milling and flotation, the optimal operational conditions at ball mill stage were determined as follows: 45 ℃, the liquid-solid ratio of 31, 30 min treating duration and the ball mill dosage of 0.8%. The optimal operational conditions at flotation stage were determined as follows: 55 ℃, the liquid-solid ratio of 41, 35 min treating duration and the flotation reagent dosage of 0.6%. Under the optimal conditions, the oil content in solid discharge of treated oily sludge of tank bottom could be reduced to 0.8%, which could meet the treatment and disposal requirements stipulated in SY/T 7301-2016. Both water and solid contents in the purified oil were lower than 0.5%, which could be delivered to the refinery for recycling. The combined process based on the core technology of “ball mill + flotation” can solve the two key problems during treating oily sludge of tank bottom by water-based extraction, and provides a reference for the harmless and resource utilization of oily sludge of tank bottom.
Key words:  oily sludge of tank bottom  ball mill + flotation  combined process  resource utilization  harmless