气升式陶瓷膜过滤装置处理油田含聚采出水

doi:10.11949/j.issn.0438-1157.20160253

化工学报 ›› 2016, Vol. 67 ›› Issue (9): 3768-3775.DOI: 10.11949/j.issn.0438-1157.20160253

气升式陶瓷膜过滤装置处理油田含聚采出水

沈浩¹, 张春², 陈超¹, 景文珩¹, 邢卫红¹

1 南京工业大学材料化学工程国家重点实验室, 江苏南京 210009;
2 江苏久吾高科技股份有限公司, 江苏南京 211808

收稿日期:2016-03-04 修回日期:2016-06-17 出版日期:2016-09-05 发布日期:2016-09-05
通讯作者: 景文珩
基金资助:
国家自然科学基金项目（21176116）；江苏省高校自然科学基金重大项目（15KJA530001）；江苏高校优势学科建设工程资助项目。

Treatment of produced polymer-containing wastewater at oilfield using airlift ceramic membrane filtration equipment

SHEN Hao¹, ZHANG Chun², CHEN Chao¹, JING Wenheng¹, XING Weihong¹

1 State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China;
2 Jiangsu Jiuwu Hi-Tech Cooperation Limited, Nanjing 211808, Jiangsu, China

Received:2016-03-04 Revised:2016-06-17 Online:2016-09-05 Published:2016-09-05
Supported by:
supported by the National Natural Science Foundation of China(21176116), the Higher Education Natural Science Foundation of Jiangsu Province (15KJA530001) and the Project of Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

摘要/Abstract

摘要：

采用新型的气升式陶瓷膜过滤系统处理油田含聚采出水，通过气液两相流替代单一的液相流动，降低了陶瓷膜处理油田含聚采出水过程的能耗，系统考察了曝气孔大小、曝气量和跨膜压差对膜渗透通量的影响。结果表明，采用孔径为微米级的曝气头曝气使高压气体在多通道膜管内的分布更为均匀，进而有效抑制膜污染和浓差极化，延缓通量衰减。当曝气孔径为1 μm时，渗透通量达到最大，且曝气量从300 L·h^-1增加到600 L·h^-1时，通量显著增加。此外，跨膜压差对膜的渗透通量影响显著，当跨膜压差为0.4 MPa时，渗透通量最佳。陶瓷膜处理油田采出水的出水水质各方面指标数据较为稳定，达到5.1.1回注水标准。最后，计算讨论了气升式陶瓷膜过滤装置的吨水能耗。

关键词: 气升式, 膜, 油田采出水, 微孔曝气, 过滤

Abstract:

A novel airlift ceramic membrane filtration equipment was employed to treat the produced polymer-containing wastewater at oilfield. In the process of treatment on the produced polymer-containing wastewater at oilfield by ceramic membrane filtration, the energy consumption was reduced due to the gas-liquid two phase flow in place of monophase flow of liquid. Effects of aeration pore size, aeration rate and transmembrane pressure on membrane flux were investigated. It showed that the microporous aeration promoted the more homogeneous distribution of gas inside membrane tube, hence inhibited membrane contamination and concentration polarization and the alleviated decay of membrane flux. The maximum flux was achieved under condition of 1 μm of aeration pore size, of which the membrane flux increased remarkably with an increase in aeration rate from 300 to 600 L·h^-1. Moreover, the transmembrane pressure influenced the membrane flux significantly, with an optimal pressure of 0.4 MPa. The various parameters of quality of the permeated water are stable, which satisfies the requirements of the standard 5.1.1 of reusing water. The energy consumption per ton water of airlift ceramic membrane filtration equipment was also calculated.

Key words: airlift, membranes, oilfield produced water, microporous aeration, filtration

中图分类号:

TQ052

沈浩, 张春, 陈超, 景文珩, 邢卫红. 气升式陶瓷膜过滤装置处理油田含聚采出水[J]. 化工学报, 2016, 67(9): 3768-3775.

SHEN Hao, ZHANG Chun, CHEN Chao, JING Wenheng, XING Weihong. Treatment of produced polymer-containing wastewater at oilfield using airlift ceramic membrane filtration equipment[J]. CIESC Journal, 2016, 67(9): 3768-3775.

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气升式陶瓷膜过滤装置处理油田含聚采出水

Treatment of produced polymer-containing wastewater at oilfield using airlift ceramic membrane filtration equipment

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