Titanium hydrodesulfurization

Some of these reactions use finely divided metals (often supported on an inexpensive inert material, often an oxide or a clay mineral) while others use metal compounds e.g., molybdenum sulfide for hydrodesulfurization (Section 3.2.3), tunsten oxide (for metathesis. Section 6.3), or titanium or chromium salts (for olefin polymerization. Section 7.3). 

Titanium disulfide, T1S2, is a desirable cathode material for lithium batteries [102]. It is also used as a catalyst in hydrodesulfurization processes [103] and as a lubricating component in titanium alloys [104a]. Chemical vapor deposition has been employed widely for the preparation of TiS2 thin films [104b]. 

Thermal processes such as coking, cat cracking, hydrodesulfurization, and hydrocracking ail produce both NF 3 and H2S. The resulting aqueous-phase ammonium hydrosulfide is antagonistic to carbon steel heat-exchanger tubes. Most of the ammonium hydrosulfide winds up in sour-water streams. Before disposal, the sour water must be steam stripped. The overhead condenser used for this stripper has an extremely corrosive environment. Titanium is preferred for this service. 

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