Process for producing hydrogen from seawater by utilizing solar condensation

Abstract

The invention discloses a process for producing hydrogen from seawater by utilizing solar condensation. Renewable solar energy is stored into molten salt in a heat gathering pipe through a solar condensation technology and converted into heat energy; then the heat energy is converted into electric energy through a heat exchanger; the generated electric energy is used for supplying power to seawater desalination equipment, electrolytic hydrogen making equipment and solid hydrogen storage equipment; fresh water generated by filtering seawater entering the seawater desalination equipment can be used as an existing water source; concentrated seawater discharged by the seawater desalination equipment enters the electrolytic hydrogen making to prepare hydrogen through electrolysis, and the concentrated seawater is reused and converted into clean and efficient hydrogen energy; and then the obtained hydrogen is stored in a ferrotitanium alloy hydrogen storage material and can be conveyed to any place, and the ferrotitanium alloy hydrogen storage material is large in reversible hydrogen storage amount, low in heat storage cost, safe to use, friendly to environment and convenient to transport. According to the invention, remote monitoring operation is realized in the whole process flow, the geographical limitation of ocean energy utilization is overcome, and the economical efficiency ofenergy utilization is improved.

Description

technical field [0001] The invention relates to the technical field of seawater treatment, in particular to a process for producing hydrogen from seawater by using solar energy concentration. Background technique [0002] With the development of the economy, energy has increasingly become an important issue restricting economic development. Clean and renewable energy is the direction of future energy development. At present, people are trying to use the sea as a source of fresh water. The desalinated seawater as the existing water source can meet people's domestic water needs under certain conditions. The concentrated seawater after seawater desalination can be used for electrolysis to prepare hydrogen, which can not only improve the seawater desalination process The further utilization of the products in the process improves the economics of electrolytic hydrogen production, and the prepared hydrogen can be stored and transported, which can be widely used in various fields ...

AI Technical Summary

Problems solved by technology

[0003] However, most of the electricity used in the process of electrolyzing water to produce hydrogen today is placed in fossil energy for power generation, which not only costs a lot, but also produces harmful gases that pollute the environment; in addition, hydrogen is in a gaseous state at normal temperature and pressure, and has a low density. , and is flammable, explosive, and easy to diffuse. It is difficult to realize the safe storage and transportation of hydrogen under mild conditions. The process needs to consume a lot of energy, and the overall cost of hydrogen storage is relatively high.

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