| 摘要 |
A multi-optimised hydrogenation series method, and a design method therefor and a use thereof. The hydrogenation method comprises the following steps: heat exchanging is performed at a heat exchanger between hydrogen and gas of an outlet of a high-temperature high-pressure separator, i.e. a high-temperature high-pressure separator at a heat exchanger to raise the temperature of the hydrogen to 300-420oC, the hydrogen being divided into two paths and heated; one path is mixed with a raw material and enters a raw material heating furnace to be heated to 330-420oC to form a mixture flow, one path enters a hydrogen heating furnace to be heated to become high temperature hydrogen having a temperature of 450-580oC, one path of the high temperature hydrogen is mixed with the mixture flow of an outlet of the raw material heating furnace and enters a primary hydrogenation reactor, one path is mixed with a material flow of an outlet of the primary hydrogenation reactor and enters a secondary hydrogenation reactor, one path enters the high-temperature high-pressure separator from a bottom portion, and if three or more reactors are provided, the high temperature hydrogen enters said reactors in a sequential manner. The method is simple in operation and facilitates automated control. The heating forms and entry positions of the hydrogen solve the problems that the temperature of an inlet of the primary reactor is unstable, the hydrogen partial pressure of the second reactor is insufficient, and asphaltenes undergo condensation reactions within the separator. |
