You’re in the race to meet the world’s growing need for renewable diesel. Your refinery’s new construction is a massive investment of capital and manpower. Building in methods and processes that mitigate health and safety risks is more essential than ever. The environmental profile of Lubrizol’s SulfrZol® 54 makes it an exceptional continuous sulfiding agent for protecting the well-being of your employees, your facilities and your company’s reputation.

Safety in Numbers

Compared with Dimethyl Disulfide (DMDS), SulfrZol® 54 is the safer, cleaner, more efficient solution for continuous sulfiding.

Physical Characteristics DMDS* SulfrZol® 54
Sulfur content, % by wt. 68 54
Thermal decomposition temperature (with catalyst) 392° F (200° C) 320° F (160° C)
Flash point (closed cup, ASTM D93) 61° F (16° C) 212° F (100° C)
Vapor pressure, psia @ 100° F (38° C) 0.5 0.15
Odor description, provided by vendors Foul; decaying cabbage Low odor similar to gas/oil
Decomposition by-products Hydrogen sulfide, methane Hydrogen sulfide, isobutane
*DMDS = dimethyl sulfide

Four ways SulfrZol 54 responds to the challenges of renewable diesel:


Responsible, for Renewable

SulfrZol® 54 exhibits a superior environmental profile in contrast to DMDS. Not classified as toxic by the definitions provided under OSHA and DOT regulations, SulfrZol® 54 poses less of an inhalation risk. And unlike DMDS, it is classified by the U.S. Department of Transportation as nonhazardous for transportation.


Reassuring, for Renewable

With a flash point of 212°F (100°C), SulfrZol® 54 greatly reduces the risk of potential flash fires and eliminates the added expense and concern of storing flammable DMDS.


Refreshing, for Renewable

SulfrZol® 54 is low odor compared to DMDS, which has an extremely unpleasant scent similar to decaying cabbage. In contrast, the use of SulfrZol® 54 in continuous sulfiding results in a relatively mild diesel-like smell that can be virtually undetectable in an open-air environment.


Reliable, for Renewable

Lubrizol, a Berkshire Hathaway company, is committed to supporting the global sulfur platform essential to renewable diesel refining. Our organization leverages substantial supply chain capabilities on multiple continents and has expanded its world-leading supply of polysulfide to meet your demands for SulfrZol® 54.

Contact Us

Contact us with all your catalyst sulfiding questions or needs: