稠油污水蒸发前除硅及有机物的试验研究

doi:10.11930/j.issn.1004-9649.2016.01.037.07

中国电力 ›› 2016, Vol. 49 ›› Issue (1): 37-43.DOI: 10.11930/j.issn.1004-9649.2016.01.037.07

稠油污水蒸发前除硅及有机物的试验研究

王璟¹，²，毛进²，赵剑强¹，王金磊³，蒲平⁴，郭维忠⁴，李亚娟²

1. 长安大学环境科学与工程学院，陕西西安 710064；
2. 西安热工研究院有限公司，陕西西安 710032；
3. 西安科技大学材料科学与工程学院，陕西西安 710054；
4. 华能新疆能源开发有限公司，新疆乌鲁木齐 830017

收稿日期:2015-06-01 出版日期:2016-01-18 发布日期:2016-02-04
作者简介:王璟（1975—），男，江苏滨海人，研究员，博士，从事电厂水处理技术研究。
基金资助:
中国华能集团公司总部科技项目（HNKJ13-H12）

Experimental Study on Silica and Organic Matter Removal from Heavy Oil Wastewater Before Evaporation

WANG Jing¹,², MAO Jin², ZHAO Jianqiang¹, WANG Jinlei³, PU Ping⁴, GUO Weizhong⁴, LI Yajuan²

1. School of Environmental Science and Engineering, Chang’an University, Xi’an 710064, China;
2. Xi’an Thermal Power Research Institute Co. Ltd., Xi’an 710032, China;
3. College of Materials Science and Engineering, Xi’an University of Science and Technology,Xi’an 710054, China;
4. Huaneng Xinjiang Energy Development Co. Ltd., Urumqi 830017, China

Received:2015-06-01 Online:2016-01-18 Published:2016-02-04
Supported by:
This work is supported by China Huaneng Group Scientific Research Program (No. HNKJ13-H12).

摘要/Abstract

摘要： 稠油污水是油田地区建设热电厂的重要水源，其温度、含盐量、SiO2和有机物浓度较高。为了使用蒸发脱盐工艺处理稠油污水，采用化学反应和强化混凝技术进行了除硅、除有机物的研究，以降低蒸发器结硅垢的倾向并提高蒸发产水水质。试验结果表明，联合投加Ca（OH）2、MgCl2?6H2O及净水剂PAC、PAM，在最优工艺条件下，出水全硅可降至25.5 mg/L，全硅去除率为89.5%。气相色谱-质谱联用仪（GC-MS）测定结果显示，稠油污水及预处理出水中主要有机物成分均为有机酸、含氮化合物，预处理对有机酸类有明显去除，但对挥发性有机物影响不大。

关键词: 热电厂, 油田, 稠油污水, 预处理, 二氧化硅, 有机物

Abstract: The heavy oil wastewater, which is of high temperature, high salinity, SiO2 and organic matter concentrations, is the major raw water source for the thermal power plants built in oilfield areas. To conduct the heavy oil wastewater treatment with evaporation desalination technique, the study on silica and organic matter removal is performed using chemical reaction and enhanced coagulation technology to reduce the risks of silica scaling in the evaporator as well as to enhance the quality of the evaporation water product. The experimental results show that with the joint Ca(OH)2, MgCl2?6H2O, PAC and PAM dosing and under the optimal processing condition, the effluent total silica concentration is decreased to 25.5 mg/L and its removal rate reaches as much as 89.5%. The gas chromatography-mass spectrometer(GC-MS) analysis results indicate that the predominant organic compounds in the heavy oil wastewater and the effluent of its pretreatment process are organic acids and nitrogen compounds. The pretreatment process can remove the organic acids notably but has little effect on VOCs removal.

Key words: thermal power plant, oil field, heavy oil wastewater, pretreatment, silica, organic matter

中图分类号:

X741

王璟,毛进，赵剑强，王金磊，蒲平，郭维忠，李亚娟. 稠油污水蒸发前除硅及有机物的试验研究[J]. 中国电力, 2016, 49(1): 37-43.

WANG Jing, MAO Jin, ZHAO Jianqiang, WANG Jinlei, PU Ping, GUO Weizhong, LI Yajuan. Experimental Study on Silica and Organic Matter Removal from Heavy Oil Wastewater Before Evaporation[J]. Electric Power, 2016, 49(1): 37-43.

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https://www.electricpower.com.cn/CN/Y2016/V49/I1/37

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稠油污水蒸发前除硅及有机物的试验研究

Experimental Study on Silica and Organic Matter Removal from Heavy Oil Wastewater Before Evaporation

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稠油污水蒸发前除硅及有机物的试验研究

Experimental Study on Silica and Organic Matter Removal from Heavy Oil Wastewater Before Evaporation

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