Patent ID: 7238274

Claim:
A system for integrated hydrotreating of a first and a second feedstock with different boiling point ranges, comprising: a first hydrotreating reactor that receives a first feedstock and produces a hydrotreated first feedstock; a first hot separator configured to receive the hydrotreated first feedstock and to produce a first hot hydrotreated liquid and a hot hydrotreated vapor that contains at least a portion of the hydrotreated first feedstock; wherein the first hydrotreating reactor is configured such that the first hydrotreated liquid has a conversion of less than 15% relative to the first feedstock; wherein the system is further configured such that at least a portion of the hot hydrotreated vapor is mixed with a second feedstock to form a mixed second feedstock; a second hydrotreating reactor that is configured to receive the mixed second feedstock and to form a product, wherein the second hydrotreating reactor is configured such that the product has a conversion of less than 15% relative to the mixed second feedstock; a second hot separator configured to receive the product and to form a liquid product; and wherein the second feedstock has a boiling point range that is lower than a boiling point range of the first feedstock.