Simulation of scale formation during viscous oil wastewater evaporation and concentration

被引：0

作者：

Zou, Longsheng ^{[1
,2
]}

Chen, Dezhen ^{[1
]}

Yin, Lijie ^{[1
]}

Zhou, Weiguo ^{[1
]}

机构：

[1] College of Mechanical Engineering, Tongji University

[2] Chongqing Water Resources and Electric Engineering College

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2014年 / 42卷 / 03期

关键词：

Crystallization fouling; Evaporation; Simulation; Thermal resistance; Viscous oil wastewater;

D O I：

10.3969/j.issn.0253-374x.2014.03.018

中图分类号：

学科分类号：

摘要：

The behavior of scale formation during viscous oil wastewater evaporation process was investigated. Based on evaporation and concentration experiments, the composition of scale crystal was confirmed by X-ray powder diffractometer (XRD) and scanning electron microscopy (SEM). According to the composition of wastewater scale, a three-layer crystallization fouling deposit model was established, namely mixed fouling including calcium carbonate salt(CaCO3), compound salts (Na2CaSiO4, Ca8Si5O18) and silicate salt (Ca2SiO4). It is found that the fouling resistance mainly results from calcium carbonate salt, and it accounts for 91.76% of the total fouling resistance. The simulation results coincide with the experimental data. The three-layer crystallization fouling model proves to be able to predict the scale formation process during viscous oil wastewater evaporation, and it provides a theoretical basis for preventing heat transfer surface fouling during evaporation of viscous oil wastewater.

引用

页码：441 / 446

页数：5

共 25 条

[1]

Ahmadun R.F., Pendashteh A., Abdullah C.L., Et al., Review of technologies for oil and gas produced water treatment, Journal of Hazardous Materials, 170, (2009)

[2]

Li Q., Liu Z., Pang H., Et al., Process simulation and analysis of mechanical vapor compression based oilfield waste water desalination systems, CIESC Journal, 62, 7, (2011)

[3]

Zhang Y., Xie J., Bi Y., Et al., Waste energy recovery system and equipment design for reducing waste energy in heavy oil extraction with steam assisted gravity drainage (SAGD) process, Chemical Industry and Engineering Progress, 30, SUPPL., (2011)

[4]

Xie J., Hu Y., Chen D., SADG heavy oil extraction waste heat recovery system of the optimization, Chemical Industry and Engineering Progress, 29, SUPPL., (2010)

[5]

Kern Q.D., Seaton E.R., A theoretical analysis of thermal surfaces fouling, British Chemical Engineering, 4, 5, (1959)

[6]

Bott R.T., Fouling of Heat Exchangers, (1995)

[7]

Helalizadeh A., Steinhagen M.H., Jamialahmadi M., Mixed salt crystallisation fouling, Chemical Engineering and Processing, 39, (2000)

[8]

Xu Z., Zhang Z., Cheng H., Numerical simulation CaCO<sub>3</sub> fouling process in a tube, Journal of Engineering Thermophysics, 30, 12, (2009)

[9]

Forster M., Augustin W., Bohnet M.M., Influence of the adhesion force crystal/heat exchanger surface on fouling mitigation, Chemical Engineering and Processing, 38, (1999)

[10]

Brahim F., Augustin W., Bohnet M., Numerical simulation of the fouling process, International Journal of Thermal Sciences, 42, (2003)

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