Composition of Klaus desulfurization catalyst

Components of the Klaus desulfurization catalyst: alumina

This post was last edited by adsl121 on 2010-6-3 at 14:22. The main component is generally alumina; nowadays, titanium oxide is also used. It is usually required to be replaced every 3–4 years. However, it can be decided based on the actual operating conditions. Generally, if the catalyst is severely deactivated, the temperature rise in the bed is very small, and the catalytic efficiency is poor, it needs to be replaced

This post was last edited by adsl121 on 2010-6-3 14:23. 1# Qingfeng Liushui: Generally, it contains activated alumina. Titanium dioxide. Cobalt oxide. Molybdenum oxide and similar materials, but their application location is very important

This post was last edited by adsl121 on 2010-6-3 at 14:23. The main active component of the Chris catalyst is aluminum oxide; small amounts of titanium dioxide and divalent iron ions are also present. Cobalt oxide and molybdenum oxide catalysts are used only for hydrogenation reduction of exhaust gases, while they are not used in some versions of the Chris catalyst. The lifespan of the catalyst is usually around 6 years.

This post was last edited by adsl121 on 2010-6-3 at 14:23. Before 1960, the traditional catalyst used in Claus plants was granular natural bauxite; as environmental regulations became stricter, various countries developed activated alumina catalysts as well as catalysts containing additives based on activated alumina. Different manufacturers added different additives to their Al2O3 catalysts, and this approach not only improved catalytic efficiency but also enhanced the catalyst’s resistance to sulfation. TiO2-based catalysts were successfully developed in the early 1980s. They are used for the hydrolysis of CS2 and COS, as well as iron-based catalysts for oxygen leakage protection. In a typical reactor, the catalyst for oxygen leakage protection is placed in the top layer, the catalyst for hydrolysis reactions in the middle layer, and the conventional catalyst in the bottom layer. Current catalysts can last for 3 years under extremely harsh conditions, and 5–6 years under better conditions.

This post was last edited by adsl121 on 2010-6-3 at 14:23. The claus catalysts are primarily made of alumina; nowadays, mixed catalysts are also being used, such as those based on aluminum and titanium combined together. Under normal conditions, it can last at least 3 years, and better quality ones can last 5 years.

This post was last edited by adsl121 on 2010-6-3 14:24. The catalyst is aluminum oxide. I just learned it.

This post was last edited by adsl121 on 2010-6-3 14:24. The catalyst is aluminum oxide. I just learned it.

I don’t think it’s a good idea; phosphine exhaust with complex components cannot be used for desulfurization!

The earliest Klaus catalysts used ferric alumina, while today aluminum oxide-based catalysts and titanium dioxide-based catalysts are more commonly used.