Catalytic hydrogenation method adopting naphthalene as hydrogen storage agent

Abstract

The invention discloses a catalytic hydrogenation method adopting naphthalene as a hydrogen storage agent. The catalytic hydrogenation method adopting the naphthalene as the hydrogen storage agent is characterized by adopting the naphthalene as a carrier, adopting an amorphous Ni / Al alloy as a catalyst, and carrying out catalytic hydrogenation at the pressure ranged from 2.0 to 5.0MPa and the temperature ranged from 100 DEG C to 280 DEG C to generate decahydronaphthalene for storing hydrogen. Compared with the prior art, the catalytic hydrogenation method adopting the naphthalene as the hydrogen storage agent provided by the invention has the advantages of simple hydrogen storage equipment, large hydrogen storage capacity, simple method, low cost, highly reversible hydrogen storage reaction, convenience in storing and releasing hydrogen, safety in storage and transportation, and high reaction conversion rate, the conversion rate of the naphthalene can achieve 99.6 percent, and the yield of the decahydronaphthalene can achieve 99.2 percent.

Description

technical field [0001] The invention relates to the field of hydrogen storage materials in the technical field of chemical engineering, in particular to a catalytic hydrogenation method using naphthalene as a hydrogen storage agent. Background technique [0002] Energy is the material basis for human existence and sustainable development. Due to the non-recyclability of traditional energy sources such as oil, coal, and natural gas, alternative energy sources such as solar energy, wind energy, geothermal energy, and hydrogen energy have long been valued and continuously developed. Among them, hydrogen energy is recognized as the most promising future energy. one. Hydrogen storage with organic hydrides is one of the new methods for studying hydrogen storage in recent years. When hydrogen storage is required, unsaturated organic compounds are used to react with hydrogen to form hydrides, thereby storing hydrogen; when hydrogen needs to be released, by controlling the temperatu...

AI Technical Summary

Problems solved by technology

[0003] Catalysts for the catalytic hydrogenation of aromatics currently mainly include noble metal series and non-noble metal series. The noble metal series include Pd, Pt and other series of catalysts, which have high catalytic efficiency, but are expensive and easily deactivated under harsh reaction conditions of high temperature and high pressure.

The non-precious metal series mainly refers to nickel-based catalysts, including Raney nickel and supported nickel catalysts. Their cost is relatively low, but they also have certain limitations, such as poor heat resistance, easy-to-modulate structure of amorphous alloys, coordination Unique properties such as high unsaturation and chemical uniformity

Compared with traditional Raney nickel and supported catalysts, the amorphous Ni / Al alloy catalyst has smaller particle diameter, more uniform, higher specific surface area, and higher catalytic activity, but the amorphous Ni / Al alloy catalyst is currently The chemical hydrogen storage method for naphthalene hydrogenation using Ni / Al alloy as a catalyst has not been reported yet