The term "non-emulsifier" in the context of oil & gas processing is a bit of a misnomer. There is no single chemical specifically called a "non-emulsifier."

Understanding Emulsifiers and Demulsifiers

• Emulsifiers are substances that promote the formation of emulsions, which are mixtures of two immiscible liquids (like oil and water).
• Demulsifiers are substances that break down emulsions. They do this by reducing the interfacial tension between the liquids, allowing them to separate.

What Happens in Oil & Gas Processing

In oil & gas processing, emulsions are a common problem. During extraction, water can become trapped within the crude oil, forming a stable emulsion. This is undesirable because:

• Water reduces the quality of the oil.
• Water can cause corrosion in pipelines and equipment.
• Water can increase transportation costs.

So, instead of "non-emulsifier," the term you're likely looking for is "demulsifier."

Demulsifiers in Oil & Gas Processing

Demulsifiers are used to break down these emulsions and separate the oil from the water. They work by:

• Adsorbing to the surface of the water droplets.
• Reducing the interfacial tension between the oil and water.
• Promoting the coalescence of water droplets, allowing them to settle out.

Examples of Demulsifiers

Common types of demulsifiers used in oil & gas processing include:

• Polyethylene glycols (PEGs)
• Polyalkylene glycols (PAGs)
• Surfactants

In summary:

There is no specific "non-emulsifier" used in oil & gas processing. Instead, the focus is on using demulsifiers to break down oil-water emulsions and improve the quality of the extracted oil.