Desulfurisation
Encyclopedia
Desulfurisation is a chemical reaction involving the removal of sulfur
from a molecule (e.g. A=S → A:).
An important industrial desulfurisation processes is also the hydro-desulfurization
of natural gas. In a second step, the Claus process
, elemental sulfur is recovered from the produced gaseous hydrogen sulfide
.
Sulfur
Sulfur or sulphur is the chemical element with atomic number 16. In the periodic table it is represented by the symbol S. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow...
from a molecule (e.g. A=S → A:).
An important industrial desulfurisation processes is also the hydro-desulfurization
Hydrodesulfurization
Hydrodesulfurization is a catalytic chemical process widely used to remove sulfur from natural gas and from refined petroleum products such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils...
of natural gas. In a second step, the Claus process
Claus process
The Claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. First patented in 1883 by the scientist Carl Friedrich Claus, the Claus process has become the industry standard....
, elemental sulfur is recovered from the produced gaseous hydrogen sulfide
Hydrogen sulfide
Hydrogen sulfide is the chemical compound with the formula . It is a colorless, very poisonous, flammable gas with the characteristic foul odor of expired eggs perceptible at concentrations as low as 0.00047 parts per million...
.
See also
- WSA Process Wet sulfuric acid processWet sulfuric acid processThe wet sulfuric acid process is one of the key gas desulfurization processes on the market today. Since the Danish catalyst company Haldor Topsoe introduced and patented this technology in the late 1980s, it has been recognised as an efficient process for recovering sulfur from various process...
- SNOX Flue gas desulphurisationSNOX Flue gas desulphurisationThe SNOX process is a process which removes sulfur dioxide, nitrogen oxides and particulates from flue gases. The sulfur is recovered as concentrated sulfuric acid and the nitrogen oxides are reduced to free nitrogen...
- Claus processClaus processThe Claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. First patented in 1883 by the scientist Carl Friedrich Claus, the Claus process has become the industry standard....
- Preparation of stable carbenes