Hydroconversion of oil residues to produce up to 95% distillate products
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Process Description Feedstock – heavy petroleum residue is mixed with water solution of the catalyst in the raw mixture treatment unit 1. The resulting dispersion is mixed with a part of the HCG and sent to the reaction unit 2. A mixture of HCG with atmospheric residue and/or VGO is supplied to unit 2 as a quench. Hydroconversion products are removed from unit 2 and separated in fractionation unit 3 into gases fed to desulfurization unit 4, light fractions fed to hydrotreatment unit 5, atmospheric residue and VGO, as well as vacuum residue, which is sent to combustion and extraction of catalyst. Treated hydrocarbon gas is discharged from unit 4. Acidic gas and HCG are partially mixed with the feedstock, and partially fed into unit 5, from which light fractions are removed.
Process features
An alternative or addition to the delayed coking process
The feed conversion rate is from 70% (with the production of a liquid residue) to 90-95% with the production of a pelletized residue
Hydrotreating of distillate products is required
Possibility to recover metals by recycling vacuum residue
Provides a depth of oil refining at refineries up to 98 %
Technical Specification
Feedstock - tars, products of thermal processes, asphalts with a density above 1000 kg/m3