
SulfrZol® 54 catalyst sulfiding agent
Helping you safely win the race to renewable diesel
Contact us with all your catalyst sulfiding questions or needs:
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 |
Four ways SulfrZol 54 responds to the challenges of renewable diesel:

1 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.

2 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.

3 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.

4 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.