多相催化氧化法处理油田污水

Treatment of oilfield-produced water by multi-phase catalytic oxidation

摘要: 油田污水中的S^2-,Fe²⁺及细菌等可使部分水解聚丙烯酰胺产生降解,使聚合物溶液粘度大幅度下降.采用浸渍法制备了过渡金属-稀土复合氧化物催化剂,用于多相催化氧化处理油田污水.结果表明,Mn-Ce复合氧化物催化剂性能高效、稳定;与未处理的模拟污水相比,经多相催化氧化处理后的模拟污水配制的聚合物溶液粘度提高548%.

Abstract: S^2-, 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.