A-Z Index

Dimethyl disulfide, DMDS Evolution^® E2 (Dimethyl Disulfide), is the leading sulfur-based, anti-coking and corrosion inhibition technology that is used globally in Propane Dehydrogenation (PDH) and Butane Dehydrogenation (BDH) units. Hydrocarbons exposed to elevated temperatures form coke, which can cause metal carburization and affect heat transfer and flow dynamics. In less than 15 minutes, sufficient coke is formed to require dehydrogenation unit shut down for immediate cleaning and decoking. This anti-coking method is superior in performance and generally preferred compare to physical pipeline, cracker coating or polishing.

Dimethyl disulfide, DMDS Evolution^® E2, is the market reference for activating the hydrodeoxygenation catalysts in your hydrotreated vegetable oil (HVO) unit and for maintaining the sulfur on the catalyst, compensating for the lack of sulfur in your renewable feedstock. Arkema provides trained and experienced teams as well as reliable customized equipment with its Carelflex^® service for the catalyst activation. In addition to our two world-class DMDS manufacturing plants, our unique global supply chain ensures a consistent supply of DMDS to your plant for maintaining the catalyst in the sulfided active state during your operation.

Dimethyl Disulfide, DMDS Evolution^® E2 is the most efficient and safe sulfur provider for hydrotreatment catalyst activation and steamcrackers coking prevention. Our experienced technical support team is available to share its knowledge on Dimethyl Disulfide (DMDS Evolution^® E2) and our R&D team in GRl (Groupement de Recherche de Lacq) keeps developing programs to ease and improve its use and performances. Arkema’s world class production sites and global logistic network enable a local, easy and reliable sourcing. In addition, our Carelflex^® teams are available locally to perform your catalyst sulfiding. Our operations meet the highest certification for a consistent product quality and a service that meets our customers stringent standards. 

DMS is used alone or in combination with other sulfur compounds to odorize natural gas, oxygen, carbone monoxide CO and many liquid petroleum gases.