Effect of steam jet on oil reclamation and purification from layered oily sludge

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 固体废弃物处理与资源化实验室

	Effect of steam jet on oil reclamation and purification from layered oily sludge
	Xia, Dong; He, Kai; Zhang, Zhi-Yuan; Zhang, Fu-Shen
刊名	FUEL
	2020-03-01
卷号	263 页码:1-9
关键词	Oily sludge Steam jet Oil reclamation Demetallization Numerical simulation
ISSN号	0016-2361
英文摘要	Steam is widely used to enhance heavy oil recovery, whereas it is implemented as just an auxiliary thermal source when treating oily sludge. In this study, steam jet was for the first time introduced to simultaneously reclaim and purify oil from layered oily sludge, a hazardous waste in storage ponds of oil joint stations. The effect of steam jet on oil reclamation and purification was investigated with various operating temperatures (200-350 degrees C) and mass ratios of steam to oily sludge (2:1-8:1). Batch experiments indicated that a high steam jet performance was achieved at 300 degrees C and 6:1 of the mass ratio, with 92% of oil reclamation rate and 82% of demetallization rate from the oily sludge of upper layer within 5 min. The mild temperature of the injection area (97 degrees C) was in favor of retaining light fractions of oil. Besides, the dynamic process of this steam-based treatment was numerically simulated with COMSOL to illuminate interactions among steam, oil and condensed water. With a significant reduction of oil viscosity due to steam heating, high dynamic pressure of steam jet was found to disturb the surface of layered oily sludge, expediting oil flotation in water. Meanwhile, the intense steam jet could also sufficiently scatter the floated oil to diffuse metallic impurities from oil droplets into surrounding water. The reclaimed oil after steam injection was more upgradable for a refinery while the residual oily sludge became more treatable with traditional recycling.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44564]
专题	生态环境研究中心_固体废弃物处理与资源化实验室
推荐引用方式 GB/T 7714	Xia, Dong,He, Kai,Zhang, Zhi-Yuan,et al. Effect of steam jet on oil reclamation and purification from layered oily sludge[J]. FUEL,2020,263:1-9.
APA	Xia, Dong,He, Kai,Zhang, Zhi-Yuan,&Zhang, Fu-Shen.(2020).Effect of steam jet on oil reclamation and purification from layered oily sludge.FUEL,263,1-9.
MLA	Xia, Dong,et al."Effect of steam jet on oil reclamation and purification from layered oily sludge".FUEL 263(2020):1-9.