Mercaptans

In organic chemistry, a mercaptan or thiol is a organosulfur compound that contains a carbon-bonded sulfhydryl (-C-SH or R-SH) group (where R represents an alkane, alkene, or other carbon-containing moiety). Thiols are the sulfur analogue of alcohols, and the word is a portmanteau of “thio” + “alcohol,” with the first word deriving from Greek (“thion”) = “sulfur”. The -SH functional group itself is referred to as either a thiol group or a sulfhydryl group. Many thiols have strong odors resembling that of garlic. They are used as odorants to assist in the detection of natural gas (which in pure form is odorless), and the “smell of natural gas” is in fact due to the smell of the thiol used as the odorant.

Mercaptans are non-toxic gases that have been found in the oil and gas industry, refineries, pulp and paper mills, natural gas, and the production of essential chemicals.

The HS-600 an air filter media that is used to remove mercaptans. The media is typically used to treat low concentrations in parts-per-million (ppm) or parts-per-billion (ppb).

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