Sulfiding process is a major operation. As the world leader in thiochemicals, Arkema manufactures dimethyl disulfide (DMDS), an effective product with a high sulfur content. When used as a sulfiding agent, it can be combined with a customized service called Carelflex® which offers users on-site technical assistance.

Properties

Dimethyldisulfide is a clear liquid with a strong odor.

Markets and Applications

DMDS is used in a wide variety of applications, including:

Oil Refining:

Optimal maintenance of production units. DMDS is used in oil refineries as a sulfiding / presulfiding agent to activate the catalysts of hydrotreating units. This is an indispensable yet delicate operation. That is why Arkema offers its clients Carelflex®, an on-site sulfiding service carried out by highly-qualified technicians. Arkema has also developed an improved, lower-odor version of DMDS called DMDS Evolution™.

Petrochemicals:

To reduce the number of decoking operations. Operators in the petrochemicals industry must protect their steam cracking coils against the formation of coke and carbon monoxide. DMDS by Arkema is the ideal sulfurous product for them. DMDS can be added continuously to the raw materials to maintain an optimal sulfur level, making it possible to reduce the number of decoking operations. Secondary reactions to these operations are easier to control and production cycles are lengthened.

DMDS is also used in various other sectors, including: