Selective Hydro-desulfurization (SHDS) Units for Sale

The overall aim of the SHDS process is to produce a low sulphur gasoline blending component from cat cracked gasoline with minimal octane loss. The reactions in the SHDS reactors are desulphurisation with minimal olefin saturation to prevent octane loss: D-24, D-1. The SHDS unit removes sulphur from the heavier SHU fraction. This reaction takes place in two stages over different catalysts and at different conditions to minimise octane loss. Due to the large reactor exotherm, quenching of the reactor beds is provided. A heavy fraction of cracked gasoline (HCCS) can be routed to either SHU or SHDS for treatment in limited proportions.