Treatment of oilfield-produced water by multi-phase catalytic oxidation
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摘要: 油田污水中的S2-,Fe2+及細菌等可使部分水解聚丙烯酰胺產生降解,使聚合物溶液粘度大幅度下降.采用浸漬法制備了過渡金屬-稀土復合氧化物催化劑,用于多相催化氧化處理油田污水.結果表明,Mn-Ce復合氧化物催化劑性能高效、穩定;與未處理的模擬污水相比,經多相催化氧化處理后的模擬污水配制的聚合物溶液粘度提高548%.Abstract: S2-, Fe2+ and bacteria in oilfield produced water could degrade polyacrylamide and decrease the polymer solution's viscosity seriously. An Mn Ce complex oxide catalyst was prepared by impregnation method to treat oilfield-produced water by multi-phase catalytic oxidation, The results showed that the catalyst was high effective and stable. The viscosity of the polymer solution made of simulated oilfield produced water processed by the oxidation was 5.48 times higher than that unprocessed.
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Key words:
- oilfield-produced water /
- multi-phase catalytic oxidation /
- polymer /
- viscosity
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