The adsorption technology of gasoline and diesel oil means that the sulfur in gasoline and diesel oil is adsorbed on the catalyst to reduce the sulfur content。
In order to improve the environment, control smog and other pollution to promote green development, China speeds up measures to upgrade the quality of refined oil products, the quality standards for gasoline and diesel have been raised from national Iv to National V ,VI, and the sulfur content has been reduced from 50 ppm to 10 ppm. It is difficult to meet the requirements for hydrogenation plant products built according to the national IV gasoline and diesel standard, a new desulfurization unit must be built, and hydrodesulfurization can saturate alkenes and cause octane loss of gasoline.
1，Adaptable raw material
Gasoline and diesel oil meeting national standard iv
2，Physicochemical properties of catalysts
Item | Property |
Carrier | Alumina mixture |
Component | Nickel, zinc aluminum |
Appearnace | Gray and black stripes |
Diameter | 2-2.5mm |
Bulk density | 0.9-1.1g/cm3 |
3，Process conditions
Item | Value |
Reaction temperature，℃ | 260-280 |
Reaction pressure，MPa | 2.0-4.0 |
Volume SV，h-1 | 0.5-1.5 |
H₂/oil，v：v | 10：1-50：1 |
4，Technical flow diagram
5 ，Process characteristics
Fixed bed technology, simple equipment, less investment; the adsorption capacity of catalyst is large and the one-way life is long; adsorption desulfurization and alkene addition are adopted, and octane number is almost not lost.