Demulsifiers are critical in oilfield and petroleum wastewater treatment, primarily used to separate oil-water emulsions. Oilfield and petroleum wastewater typically contain a mix of oil, water, suspended solids, and other impurities, often forming stable emulsions. Adding demulsifiers breaks down this emulsion structure, enabling quicker oil-water separation and improving treatment efficiency. Here are the main applications of demulsifiers in oilfield and petroleum wastewater treatment:

1. Oil-Water Separation: Demulsifiers reduce interfacial tension within emulsions, disrupting the emulsion film and allowing oil droplets to coalesce and float, facilitating oil-water separation. This step is crucial for subsequent treatment and resource recovery.

2. Enhanced Treatment Efficiency: Demulsifiers significantly shorten the oil-water separation time, increasing treatment efficiency and lowering energy and operational costs. This is especially effective for wastewater with high oil content.

3. Reduction of Environmental Pollution: Untreated oilfield and petroleum wastewater can cause severe environmental pollution. Demulsifiers effectively remove oil and other organic pollutants from wastewater, minimizing environmental impact and ensuring compliance with environmental regulations.

4. Versatility Across Treatment Systems: Demulsifiers can be applied in various processes such as centrifugation, flotation, and gravity separation, making them suitable for different scales and types of wastewater treatment systems.

5. Resource Recovery: In the petroleum industry, demulsifiers enable the recovery of separated oil, which can be reused or recycled, promoting resource conservation and reducing waste.

Product Overview

This product is a reverse emulsifier, a composite polymer water treatment agent characterized by numerous positively charged groups along its molecular chain. It is a highly effective cationic polymer. With its powerful reverse emulsification capability, it can significantly lower the interfacial tension of oil-in-water (W/O) or water-in-oil (O/W) emulsions. This process destabilizes the emulsions by neutralizing the repulsive and attractive forces of oils or colloidal particles in wastewater, resulting in the formation of flocs. Through further chemical bridging, it facilitates the separation of oil and water, as well as the removal of harmful impurities in the wastewater, achieving the goals of oil recovery and wastewater purification. The emulsifier is highly effective in breaking water-in-oil emulsions, reducing oil-water separation time, and is water-soluble and effective across a broad pH range.

Applications

• Separation of oilfield produced water and polymer-laden wastewater in petroleum extraction
• Demulsification of emulsified liquids and cutting fluid wastewater from mechanical machining and metal manufacturing
• Demulsification of emulsified liquids and alkaline wastewater from steel mills
• Oil-water separation of coking wastewater from coking plants
• Oil-water separation of animal and vegetable oil wastewater from leather and fur processing
• Removal of organic substances from high-concentration organic wastewater in chemical industries

Physical and Chemical Properties

Usage Instructions

Add the product directly to the wastewater either in its original form or diluted, then stir and allow it to settle. For optimal results, use in conjunction with PAC and PAM. The ideal pH range for application is 5-12, with pronounced demulsification and flocculation effects around pH=9. The dosing point is typically selected in the rapid mixing tank of the sewage treatment process. The dosage varies depending on the type of wastewater, generally ranging from 50-1000ppm.

Safety, Packaging, and Storage

• Safety: Avoid direct contact with eyes and skin. In case of contact, rinse immediately with plenty of water.
• Packaging: Available in 25kg and 200kg plastic drums, or as per user requirements.
• Storage: Store in a cool place. The product has a shelf life of one year.