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Silicones from Dow Corning
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Antifoams for Oil
Production and

Increase productivity and reduce
production costs by eliminating
process foam.


Knock out foam with silicone solutions for optimized process performance

From the wellhead through refining, processing and even shipment of the finished product, foam can cause major problems in the production and refining of oil. Silicone foam control agents from Dow Corning eliminate process foam in production, refinery and gas-processing plants. Eliminating process foam can increase your productivity, reduce your production costs and, consequently, save you money.

Silicone foam control expertise for the oil and gas industry

Count on Dow Corning for the expertise you need to provide solutions to your foam control challenges, in applications including:

Gas-oil separation – Certain crudes tend to foam while undergoing depressurization to release entrapped gas. This tendency can substantially limit output and is especially severe on offshore rigs where vessel size is limited and special foaming problems can occur. Using as little as 1 to 5 parts per million silicone antifoam from Dow Corning can help you maintain maximum separator capacity and well output.

gas-oil separation process diagram

Product recommendations for gas/oil separators:

Many Dow Corning® brand silicone antifoams are available for use in gas/oil separators - save costs and time by choosing the right blend. Select from high-viscosity neat antifoams that can be supplied as a concentrate for ease of handling - or let us customize a blend of selected silicone-based fluids and solvents to meet your specific needs.

Gas scrubbing – Gas scrubbers used to remove CO2 and H2S from gases are prone to foam. Such processes are commonly used for natural gas and refinery gas, in gas treatment as a part of reforming, in ethylene production (steam cracking), and in the production of ethylene oxide. Trace impurities such as liquid hydrocarbons, wellhead inhibitors, corrosion solids and valve greases in the incoming gas can cause foam regardless of which absorbent (MDEA, DEA, TEA and DGA or carbonate solution) is used.

silicone antifoams in gas scrubbing process diagram

Foaming can cause poor separation efficiency, reduced throughput and loss of expensive absorbent by carry-over. Control harmful foam by feeding Dow Corning® silicone antifoam into the absorber/contactor and regenerator columns.

Product recommendations for gas scrubbing:

Delayed cokers – Foam typically occurs during the process of coking heavy oil and asphalt fractions. The addition of 10 ppm of a silicone antifoam dispersed in kerosene, either directly to the drum or before the furnace, generally controls the foam. Increased drum runs and reduced coke deposits in overhead vapor lines can be realized.

Product recommendations for delayed coking:

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For every stage in the oil and gas production process, Dow Corning has the solutions and expertise to help meet your needs. Bring us your challenges – and discover our solutions.

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