Nickel Catalyst for First-Stage PyGas Hydrogenation
The first-stage hydrogenation of PyGas is a critical step in the treatment of pyrolysis gasoline, a high-value by-product of steam crackers. This process focuses on selectively hydrogenating highly reactive dienes and alkynes while preserving valuable aromatic compounds and the majority of olefins. The feedstock is crude PyGas, which typically contains unsaturated hydrocarbons, aromatics, diolefins, olefins, gum, and sulfur impurities.
Tailored design of Delion’s catalyst and precise control of reaction conditions ensure minimal over-hydrogenation of aromatics, retaining their economic value. Partially hydrogenated PyGas can also be used as a blending component for gasoline. Overall, the first-stage hydrogenation of PyGas is essential for ensuring its stability and quality, enabling efficient downstream processing.