Continuous hydrogenation reaction system for liquid organic hydrogen storage carrier and hydrogenation reaction method

Abstract

The invention discloses a continuous hydrogenation reaction system for a liquid organic hydrogen storage carrier and a hydrogenation reaction method. The system comprises a feeding system, preheaters, static bed reaction stills and separation devices. The feeding system is communicated with inlets of the preheaters through pipelines. Outlets of the preheaters are communicated with inlets of the static bed reaction stills through pipelines. Outlets of the static bed reaction stills are communicated with inlets of the separation devices through pipelines. The static bed reaction stills are filled with hydrogenation catalysts and inert materials. The interiors of the reaction stills are kept at the constant temperature through circulation heat conduction media in interlayers of the surfaces of the static bed reaction stills. According to the continuous hydrogenation reaction system, the single-tube type static bed reaction stills are mainly adopted, the single-tube type static bed reaction stills are filled with the hydrogenation catalysts and the inert materials, heat tracing and heating control systems are arranged in all the pipelines in the liquid feeding system to be used for conducting temperature-control heating on liquid flowing through the system, a plurality of sets of gas quality and flow controller systems are designed in the system, the preheaters in the system are designed to be gas-liquid blending type preheaters, and the hydrogenation effect of the liquid hydrogen storage carrier is improved beneficially.

Description

technical field [0001] The invention belongs to the technical field of hydrogen storage, and in particular relates to a continuous hydrogenation reaction system of a liquid hydrogen storage carrier and a method for continuously hydrogenating a liquid organic hydrogen storage carrier by using the system. Background technique [0002] As a green energy with abundant reserves, wide sources and high energy density, hydrogen energy has shown good application prospects in fuel cells and replacing fossil fuels. In the actual application process, its storage and transportation are the key. It is even more critical to find efficient, low-cost and large-scale hydrogen storage methods. [0003] The existing hydrogen storage methods can be roughly divided into two types, namely physical methods and chemical methods. Typical physical methods include low-temperature liquid hydrogen storage method and high-pressure gaseous hydrogen storage method. Among them, although the low-temperatur...

AI Technical Summary

Problems solved by technology

However, the existing hydrogen storage systems based on chemical reaction methods generally have the following defects: the freezing point (melting point) of the hydrogen storage system itself is too high, and it is solid at room temperature

These condensates are easy to cover the surface of the dehydrogenation catalyst, which leads to the interruption of the dehydrogenation reaction

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