Effect of the Particle Surface on Oil Recovery from Petroleum Sludge

被引：27
|
作者：
Huang, Qunxing [1 ]
Han, Xu [1 ]
Mao, Feiyan [1 ]
Chi, Yong [1 ]
Yan, Jianhua [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
ENERGY & FUELS | 2014年 / 28卷 / 07期
关键词：
CRUDE-OIL; REFINERY SLUDGE; WETTABILITY; SANDS; PERFORMANCE; ULTRASOUND; MINERALS; BEHAVIOR; WASTE; PH;
D O I：
10.1021/ef500808x
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The surface characteristics of solid particles found in two petroleum sludges were studied, along with their effect on oil recovery. The particles were classified into three types based on their microstructures and settling behavior during centrifugation. Wettability of sludge particles and modified quartz was comparatively investigated by the sessile drop method; solids from petroleum sludge were found to have a contact angle close to that of acidified quartz. When the contact angle decreased from 135.1 degrees to 85.8 degrees and 16.9 degrees in unmodified, acidified, and alkylated quartz, respectively, the oil residue following centrifugation increased from 0.9 to 5.2 and 10.0%. Solids found in petroleum sludge are more hydrophobic than solids from oil sand. Pretreatment methods that can decrease the oil-solids interaction, such as anti-alkylation, will improve oil recovery from petroleum sludge.
引用
收藏
页码：4480 / 4485
页数：6
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