A light hydrocarbon distillate hydrogenation test device and method

Abstract

The invention discloses a device and a method applied to hydrogenation test of light hydrocarbon fraction and belongs to the technical field of test devices with heating and heat-extracting functions in the reaction process. A tubular reactor is divided into an inner layer and an outer layer, wherein the inner layer is a reaction unit and is provided with a reactor inner thermocouple which is arranged at the center of a catalyst and a packing; the outer layer is a temperature control unit and is divided into a heating section, a constant-temperature section and a cooling section; each section is provided with a heat conduction oil inlet and a heat conduction oil outlet; and circulation heat conduction oil is used for supplying heat or extracting heat of the three sections to guarantee the normal operation of low-temperature strong exothermic reaction of hydrogenating and removing alkyne and olefin of the light hydrocarbon fraction. According to the device, the tubular reactor is used for stably controlling the reaction temperature of a catalyst bed layer; the device can be used for simulating the actual production condition of an industrial device; the process condition is stably controlled; the products are stable and reliable in properties; test data can be applied to study on thermodynamics and kinetics of the reaction process of hydrogenating and removing alkyne and olefin of the light hydrocarbon fraction.

Description

Technical field [0001] The invention relates to a light hydrocarbon fraction hydrogenation test device and method, belonging to the technical field of test devices with heating and heat extraction functions during the reaction process. Background technique [0002] Hydrogenation catalysts play an important role in oil refining and chemical industries, such as lightening and cleaning of oil products, improving economic efficiency, tapping potential and increasing efficiency. Its development and performance testing require a lot of test evaluation work. Hydrogenation test is the evaluation catalyst The only way of activity, selectivity and stability, the process conditions of hydrogenation, catalysts and requirements for test equipment will vary according to the nature of the feedstock and the target product. For example, it can be divided into low pressure, medium pressure, High-pressure and ultra-high-pressure hydrogenation can be divided into endothermic, exothermic and strong e...

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Problems solved by technology

[0007] The hydrogenation test device involved in the above prior art is not suitable for the strong exothermic reaction of light hydrocarbon fraction hydrogenation at low temperature. It is used for the hydrogenation of light hydrocarbon fraction, and the temperature rise of the catalyst bed is uncontrollable. The process flow and hydrogenation reaction The process cannot approximate the actual situation of industrial plant production and operation

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