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Solar powered systems and methods for generating hydrogen gas and oxygen gas from water

a technology of hydrogen gas and oxygen gas, which is applied in the direction of machines/engines, energy input, mechanical equipment, etc., can solve the problems of reducing the total electrical energy needed for the water splitting reaction and the expense of using additional heat, and achieve the effect of reducing the amount of carbon dioxid

Inactive Publication Date: 2016-12-22
SABIC GLOBAL TECH BV
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AI Technical Summary

Benefits of technology

This patent describes a solution for producing energy with minimal carbon dioxide production. The solution involves eliminating the use of fossil fuel and using a solar-powered turbine to generate electricity. This electricity is then used to elevate the temperature and pressure of water, which is then used to generate hydrogen and oxygen through a chemical reaction. The overall process reduces the amount of energy needed and the carbon dioxide produced.

Problems solved by technology

By elevating the water temperature and pressure the overall electrical energy needed for the water splitting reaction is reduced, which in certain aspects, can be at the expense of using additional heat input from either solar energy or internal heat dissipation.

Method used

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  • Solar powered systems and methods for generating hydrogen gas and oxygen gas from water
  • Solar powered systems and methods for generating hydrogen gas and oxygen gas from water
  • Solar powered systems and methods for generating hydrogen gas and oxygen gas from water

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Prophetic Example 1

Calculations Demonstrating Efficiency of a Solar Powered System with a Solar-Powered Gas Turbine Unit

[0051]Calculations to demonstrate the efficacy and benefits of the invention are presented below with reference to FIG. 8. FIG. 8 is a schematic of the solar-powered turbine unit of the present invention that includes a closed-loop gas turbine unit and is a simplified schematic of FIG. 5.

[0052]A total of 214.82 kWh solar energy is collected by solar units 202. In heat exchangers 514, 516, and 518 coupled to solar units 202, those solar energy are further transferred to the working fluid. Considering a 50% efficacy in the heat exchanges, the thermal energy carried by fluid 520 is:

214.82 kWh×50%=120.91 kWh  (IV)

[0053]Fluid 520 enters the first turbine 200, where the hot compressed air 520 is sufficiently expanded to generate mechanical energy 120. Assuming an 80% of gas turbine efficiency, the total amount of energy in stream 120 can be calculated as:

120.91 kWh×80%=9...

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Abstract

Solar-powered systems and methods of generating hydrogen gas and oxygen gas from water are described. A solar-powered system for generating hydrogen gas and oxygen gas from water includes an electrolysis unit, a first generator unit, and a solar-powered turbine unit. The electrolysis unit is powered by the first generator unit. The solar-powered turbine unit is configured to drive the first generator unit and to supply steam to the electrolysis unit. The solar-powered turbine unit includes a first turbine coupled to and configured to provide shaft work to the first generator unit, a steam generation unit coupled to the steam feed inlet of the electrolysis unit and configured to hold water; and a solar unit configured to generate and provide heat to the steam generation unit.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims benefit to U.S. Provisional Application No. 62 / 106,056 titled “SOLAR POWERED SYSTEMS AND METHODS FOR GENERATING HYDROGEN GAS AND OXYGEN GAS FROM WATER”, filed Jan. 21, 2015. The entire contents of the above-referenced application is incorporated by reference without disclaimer.BACKGROUND OF THE INVENTION[0002]A. Field of the Invention[0003]The invention generally concerns a solar-powered system for generating hydrogen gas and oxygen gas from water. In particular, the invention relates to such a system that utilizes a solar powered turbine unit coupled to a generator and an electrolysis unit.[0004]B. Description of Related Art[0005]Hydrogen (H2) gas is a valuable product and is used as a feed stock in petroleum, chemical, energy and semiconductor industries. For example, hydrogen is used in the processing of hydrocarbons (for example, hydrocracking, hydrodealkylation, and hydrodesulfurization processes), the product...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C25B1/04C25B5/00
CPCC25B5/00C25B1/04C25B15/08F03G6/00F03G6/003F03G6/04Y02E10/46Y02E60/36Y02P20/133
Inventor HANDAGAMA, NARESHKUMAR BERNARDMALLAPRAGADA, DHARIK
Owner SABIC GLOBAL TECH BV
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