Removal of Mercaptans in Crude Oil

For many people, the smell of propane vapor is refreshing and inviting. However, for others, the Mercaptan odor can be distressing and even nauseating. Mercaptans are chemicals that are used to enhance the smell of propane and butane. At you can get more details about removal of mercaptans in crude oil.

How do you remove mercaptans from crude oil? There are a few different methods that can be used, but the most effective approach is to use a hydrocarbon removal system. This type of system uses high pressure and temperatures to break down the mercaptans into more innocuous compounds.

The best way to determine if you need to remove mercaptans from your crude oil is to consult with a professional. They will be able to tell you which method is most appropriate for your particular situation. Hydrocarbon removal systems typically involve injecting a hydrocarbon solution, such as a hydrogen sulfide, in the crude oil to dissolve the mercaptans. Then it is cooled to precipitate out the mercaptans.

Hydrogen sulfide (H2S) is an odorless gas that can be used as a solvent for both hydrocarbons and other sulfur compounds. It also has industrial uses, such as in the production of ammonia and many other chemical products. H2S will not destroy any residual mercaptan compounds or aromatics but does work as an effective means for deodorizing crude oil at low temperatures (0°C – 50°C).The Du Pont family of companies produces H2S generators that are specifically designed for use with crude oil. 

The gas is used to dissolve the liquid sulfur compounds in the crude oil, allowing it to be separated as a liquid. In addition to dissolving residual mercaptans and other sulfur compounds, H2S may also be used for removing odors from crude oil prior to distillation.