Abstract: Multiple grades of lube oil base feedstock are produced within a two-stage hydrocracking unit. Effluent from a first hydrocracking zone is sent to a separation zone, which includes multiple separation vessels, and a heavy liquid stream enters one cell of a dual cell fractionator charge heater and is flashed in the distillation zone of a divided wall fractionation column. A portion of the bottom stream from one side of the divided wall column is sent to the second hydrocracking zone. Feed to a second cell of the dual cell fractionation column is derived from the effluent of this second hydrocracking zone. A different lube oil base feedstocks is derived from each of the cells of the dual cell fractionation column.

Abstract: An intermediate hydrogen separation and absorption-based purification system is integrated with a hydrocracking process for the production of relatively lower molecular weight products from a relatively heavy feedstock including sulfur-containing and nitrogen-containing hydrocarbon compounds. The integrated process allows the processing of heavy hydrocarbon feedstock having high nitrogen and high sulfur contents in a single-stage configuration and the using of noble metal catalyst in the hydrocracking reaction zone. The integrated process increases the overall catalytic activity and hydrogenation capability to produce superior distillate products.

Abstract: An intermediate hydrogen separation and purification system is integrated with a hydrotreating and an aromatic saturation process for the production of relatively lower molecular weight products from a relatively heavy feedstock including sulfur-containing and aromatic-containing hydrocarbon compounds. The integrated process allows the processing of heavy hydrocarbon feedstock having high aromatic and high sulfur contents in a single-stage configuration and the using of noble metal catalyst in the aromatic saturation zone. The integrated process increases the overall catalytic activity and hydrogenation capability to produce superior distillate products.

Abstract: An intermediate hydrogen separation and purification system is integrated with a hydrotreating and an aromatic saturation process for the production of relatively lower molecular weight products from a relatively heavy feedstock including sulfur-containing and aromatic-containing hydrocarbon compounds. The integrated process allows the processing of heavy hydrocarbon feedstock having high aromatic and high sulfur contents in a single-stage configuration and the using of noble metal catalyst in the aromatic saturation zone. The integrated process increases the overall catalytic activity and hydrogenation capability to produce superior distillate products.

Abstract: One exemplary embodiment can be a process for a hydrocarbon feed. The process can include passing a stream through a separation zone forming a void for separating one or more gases from one or more liquids and at least partially containing a catalyst. The catalyst may include at least one group VIII noble metal. Typically, the separation zone is downstream of a hydrocracking zone for reducing the operating pressure in the hydrocracking zone.

Abstract: Multiple grades of lube oil base feedstock are produced within a two-stage hydrocracking unit. Effluent from a first hydrocracking zone is sent to a separation zone, which includes multiple separation vessels, and a heavy liquid stream enters one cell of a dual cell fractionator charge heater and is flashed in the distillation zone of a divided wall fractionation column. A portion of the bottom stream from one side of the divided wall column is sent to the second hydrocracking zone. Feed to a second cell of the dual cell fractionation column is derived from the effluent of this second hydrocracking zone. A different lube oil base feedstocks is derived from each of the cells of the dual cell fractionation column.

Abstract: One exemplary embodiment can be a process for a hydrocarbon feed. The process can include passing a stream through a separation zone forming a void for separating one or more gases from one or more liquids and at least partially containing a catalyst. The catalyst may include at least one group VIII noble metal. Typically, the separation zone is downstream of a hydrocracking zone for reducing the operating pressure in the hydrocracking zone.