产品展厅>>项目研发>>油水分离膜技术咨询

石油工业开采、炼制、贮存、运输过程都不可避免产生大量油水混合物,从环境角度和能源利用角度都要求对油水混合物进行有效的分离。膜法油水分离的特点在于:

可根据混合体系性质合理选择不同孔径、材料的多孔膜,分离过程无相变发生。

无需药剂的投加,避免二次污染的产生。

操作成本低,能耗少。

分离效率高。氮化物陶瓷膜作为一种非常稳定的高强度材料,应用于油水分离过程可以有更长的使用寿命。将陶瓷膜引入油水分离领域将会获得更好的效益。

氮化物陶瓷膜的制备。

相转化流延工艺是一种新颖的陶瓷膜成型技术,此方法可以制备出强度高、通量好的非对称陶瓷膜。本实验室使用此方法制备陶瓷膜多年,通过调节制备过程中的实验条件(浆料固含量、粉体颗粒大小、烧结温度等),可以调控陶瓷膜产品的性能,针对不同颗粒度的油水混合物,选用不同孔径的陶瓷膜。

含油废水的处理。

废水处理是一种保护环境的必要工艺,含油废水中的油处于乳化状态,油颗粒较小,分析其中油颗粒的大小,然后选择适用孔径的陶瓷膜材料进行分离。

油的回收。

油田中经过重力法分离后的废水中,仍然含有大约3-5%的油,这部分油处于分散态或者乳化态,使用疏水陶瓷膜,可以将其中的大部分分散油重新回收,降低环境污染的同时可以提高油的产率。

含水油的提纯。

油的提纯时提高其能效的一种方法,陶瓷膜分离法可以将含水油中的一些水滴分离出去,提高油的纯度。

陶瓷膜组件的原位组装。

陶瓷膜的应用需要把陶瓷膜组装成膜组件,而由于陶瓷的特性,要提高使用寿命,通过改进成型工艺,能够原位组装成膜组件。

陶瓷膜材料具有很好的化学稳定性和热稳定性,可以抵抗苛刻的化学环境,其中的氮化物陶瓷是陶瓷材料的佼佼者,具有更好机械强度和化学稳定性。在应用于油水分离中可以具有更长的使用寿命。本项目组从事氮化物陶瓷膜制备多年,可以熟练调控其孔径条件,应用于不同颗粒度的油水混合物。

本项目创新性地制备了非常稳定的无机疏水陶瓷膜,性能优异,可以进行油的回收和提纯。

Products>>Project Development>>Technical consultation of Oil-Water Separation membrane

A large number of oil-water mixtures are inevitably produced in the process of exploitation, refining, storage and transportation in the oil industry. From the point of view of environment and energy utilization, the oil-water mixture is required to be separated effectively. The characteristics of oil-water separation membrane method are as follows:

According to the properties of the mixed system, the porous membrane with different pore size and material can be selected reasonably, and no phase transition occurs in the separation process.

There is no need for the dosage of the agent to avoid the production of secondary pollution.

The operation cost is low and the energy consumption is low.

The separation efficiency is high. As a very stable and high strength material, nitride ceramic membrane has a longer service life in the process of oil-water separation. Better benefits will be obtained by applying ceramic membranes into the field of oil-water separation.

Preparation of nitride ceramic membranes.

Phase transformation casting process is a novel ceramic membranes forming technology, which can make asymmetric ceramic membranes with high strength and good flux. This method has been used in our laboratory for many years to make ceramic membranes. By adjusting the experimental conditions (slurry solid content, particle size, sintering temperature, etc.) in the preparation process, the properties of ceramic membrane products can be controlled. Ceramic membranes with different pore sizes can be selected for oil-water mixtures with different particle sizes.

Treatment of oil-bearing wastewater.

Wastewater treatment is a necessary process to protect the environment. The oil in oil-bearing wastewater is emulsified and the oil particles are small. The size of oil particles is analyzed, and then the ceramic membrane material suitable for pore size is selected for separation.

Recovery of oil.

The wastewater after gravity separation still contains about 3-5% oil, which is in the dispersed or emulsified state. Using hydrophobic ceramic membrane, and most of the dispersed oil can be recovered, which can reduce the environmental pollution and increase the oil production.

Purification of water-bearing oil.

A method to improve the energy efficiency of oil purification. Ceramic membrane separation method can separate some water droplets from the water-bearing oil and improve the purity of the oil.

In situ assembly of ceramic membrane modules.

The application of ceramic membrane needs to assemble ceramic membrane into membrane module, because of the characteristics of ceramic, in order to improve the service life, the membrane module can be assembled in situ by improving the molding method.

Ceramic membrane materials have good chemical stability and thermal stability, and can resist harsh chemical environment. Among all ceramic materials, the nitride ceramics are the best, with better mechanical strength and chemical stability. It have a longer service life in oil-water separation. The project team has been engaged in the preparation of nitride ceramic membrane for many years, and can skillfully control its pore size conditions and apply it to oil-water mixtures with different particle sizes.

In this project, a very stable inorganic hydrophobic ceramic membrane was prepared innovatively, which has excellent properties and can be used for oil recovery and purification.