Thiochemicals DMDS DMS TBPS

Thiochemical Overview

Thiochemicals are commonly used for catalyst sulfiding and steam cracker tube passivation. Reactor Resources supplies the following high-quality sulfur chemicals:

Dimethyl Disulfide (DMDS)

Dimethyl Disulfide (DMDS) is the most commonly used thiochemical for the activation of hydrotreating and hydrocracking catalysts (a.k.a. pre-sulfiding). These catalysts contain metal oxides that must be converted to the active metal sulfide prior to use. DMDS injection begins once the reactor reaches the proper temperature level, quickly decomposing to form the H2S needed to convert the metallic oxides to catalytic sulfides.
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Dimethyl Sulfide (DMS)

The thiochemical Dimethyl Sulfide (DMS) is a continuously injected into the furnace section of a steam cracker to inhibit coke formation and to control CO formation throughout the process. We offer extremely high purity DMS with a minimal amount of carbon disulfide (CS2).
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Tertiary Butyl Polysulfide (TBPS)

Another thiochemical that we supply, Tertiary Butyl Polysulfide (TBPS), can be used as a sulfiding agent to activate hydrotreating and hydrocracking catalysts. TBPS offers some advantages over DMDS for in-situ sulfiding, although more TBPS will need to be injected since it contains less sulfur than DMDS.
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