Activating agent for cobalt molybdenum catalyst and application

Abstract

The invention relates to the technical field of catalyst activation and specifically relates to an activating agent for a cobalt molybdenum catalyst and a specific use method thereof. The activating agent for the cobalt molybdenum catalyst comprises the following components by volume percent: 0.4%-0.7% of propane, 1.2%-1.8% of propylene, 10%-15% of iso-butane, 30%-35% of n-butane, 13%18% of trans-2-butene, 10%-16% of 1-butene, 17%-22% of isobutene, 9%-13% of cis-2-butene and 0.09%-0.1% of 1,3-butadiene. The activating agent has an excellent activating effect for a cobalt molybdenum catalyst under the conditions of a certain pressure, hydrogen oil ratio, volume airspeed, reaction temperature, reaction time, formula ratio and reaction sequence.

Description

technical field [0001] The invention relates to the technical field of catalyst activation, in particular to an activator for a cobalt-molybdenum catalyst and a specific use method thereof. Background technique [0002] Hydrogenation reaction is an important process in petroleum refining and synthetic reaction using petroleum as raw material. For a long time, the hydrogenation catalysts used in industry are hydroconversion catalysts with cobalt and molybdenum as active components. [0003] The Co-Mo hydrogenation catalyst is formed by impregnating CuO and MoO3 active components on the carrier, and the MoS2 and Co9S8 or COS formed after sulfidation are active substances. [0004] There are several physical reasons that affect the activity of cobalt-molybdenum catalysts in the hydrogenation process: firstly, when the reaction temperature is too high, coking is inevitable, and as the operation time increases, the elemental carbon contained in the coke will cover The gaps in t...

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Problems solved by technology

[0004] There are several physical reasons that affect the activity of cobalt-molybdenum catalysts in the hydrogenation process: firstly, when the reaction temperature is too high, coking is inevitable, and as the operation time increases, the elemental carbon contained in the coke will cover The gaps in the hydrogenation catalyst greatly reduce the microscopic reaction sites for hydrogenation; second, when there are many types of olefins in the hydrogenation material, such as dienes, alkynes, etc., side reactions will occur at high temperatures. Oligomers are formed and attached to the surface of the catalyst so that the catalyst cannot contact with the material and the hydrogenation reaction cannot occur

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