TEMPERATURE CONTROL MEASURE FOR SLURRY BED HYDROGENATION REACTOR AND DESIGN METHOD AND USE THEREOF

摘要

A temperature control measure for a slurry bed hydrogenation reactor and a design method and use thereof. Three control points are set: when the temperature reaches the first control point, cold hydrogen is injected; when the temperature reaches the second control point, a cold oil is injected; and when the temperature reaches the third control point, various depressurization points are started. The temperature of the first control point is larger than or equal to 425°C and smaller than 440°C, and/or the pressure of the first control point is larger than or equal to 19 MPa; the temperature of the second control point is larger than or equal to 440°C and smaller than 455°C, and/or the pressure of the second control point is larger than or equal to 19 MPa; and the temperature of the third control point is larger than or equal to 455°C, and/or the pressure of the third control point is larger than or equal to 20 MPa. If internal circulation is set for the reactor (1), the depressurization points are set in front and/or rear of a reactor circulation pump (5); if no internal circulation is set for the reactor, the depressurization points are set at the bottom of the reactor; the number of reducing valves (7) set at each depressurization point is larger than or equal to 1. The measure is easy to operate and high in automation degree and improves safety of the reactor and production.