Organic sulfur compounds in petroleum of the Arkhangel’sko-Tanaiskoe field

The structural-group composition of sulfur compounds in concentrates isolated under mild conditions by two-step extraction with acetonitrile and sulfolane from crude oil of the Arkhangel’sko-Tanaiskoe field was studied. With the use of a combination of up-to-date chemical and instrumental techniques, the structures of 130 organic sulfur compounds were determined in the concentrates, of which 30 were first found in petroleum.