Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water
A technology for the electrolysis of water and oxygen, which is applied in the electrolysis process, electrolysis components, refrigeration and liquefaction, etc., can solve the problems that oxygen is not well utilized, the power generation process fluctuates greatly, and is uncontrollable, so as to achieve the economic benefits of enterprises and the environment. efficiency, reducing operating energy consumption, and reducing carbon emissions
Active Publication Date: 2022-02-08
HANGZHOU HANGYANG
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Green energy such as solar energy is greatly affected by natural environmental factors (seasons, weather), and its power generation process has the characteristics of large fluctuations, discontinuity, randomness, and uncontrollability. ; On the other hand, the oxygen by-product of large-scale green power water electrolysis hydrogen production has not been well utilized at present, and there are a large number of oxygen abandonment phenomena.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment
[0027] Such as figure 1 As shown: the pressure of the green electrolyzed water hydrogen production device is about 1.0 MPa. The by-product oxygen undergoes a chemical reaction in the oxygen purifier 3, converting the impurity H2 in the oxygen into H2O and CO into CO2; then in the oxygen purifier 6 Remove the impurities in the oxygen, and the CO in the oxygen after the oxygen purifier 6 2 and H 2 The O content is not more than 1ppm; the purified oxygen enters the heat exchanger 7, and exchanges heat with the return gas and process flow oxygen in the heat exchanger 7, so that the purified oxygen is cooled to a liquid state, and is throttled through the valve V02 to After 0.5MPa, liquid oxygen is obtained. When the green electricity is sufficient, this part of liquid oxygen is divided into two streams, one of which is combined with the liquid oxygen generated from the rectification of the air separation rectification system and enters the process. The liquid oxygen pump 15 is p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more Abstract
A device and a method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water are used for reducing the scale of air separation equipment, reducing the air treatment amount of an air compressor, reducing the investment of the air separation equipment and reducing the operation energy consumption. The device comprises an oxygen purification system, a heat exchange system, an air separation compression and expansion system, an air separation rectification system and a liquid oxygen storage system. The method comprises the following steps: firstly, purifying oxygen prepared by electrolyzing water by green electricity to remove impurities such as hydrogen, carbon monoxide, carbon dioxide and water in the oxygen, then feeding the pure oxygen into a heat exchange system, performing heat exchange liquefaction to obtain liquid oxygen, coupling the liquid oxygen generated by rectification of the air separation rectification system, and obtaining pressure oxygen through the heat exchange system and the air separation compression and expansion system. The system is highly coupled, the load of the air compressor is effectively reduced, the scale of the air separation equipment is reduced, the operation energy consumption of the air separation equipment is reduced, and the purposes of high efficiency, safety and energy conservation are achieved.
Description
technical field [0001] The invention relates to the coupled utilization of green electricity water electrolysis hydrogen production by-product oxygen generated by solar energy and other renewable energy and the compression oxygen production in air separation equipment, and the utilization of oxygen liquefaction energy storage, specifically relates to a green electricity electrolysis water hydrogen production by-product oxygen The device and method belong to the technical field of oxygen production and the technical field of energy storage. Background technique [0002] Due to its zero-carbon emissions during release, hydrogen energy is expected to change the human energy system. The "green hydrogen" produced by water electrolysis using renewable energy such as solar energy is considered to be an ideal form of hydrogen energy utilization because there is no carbon emission in the preparation process. [0003] China is short of oil and gas and relatively rich in coal resource...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more Patent Type & Authority Applications(China)
IPC IPC(8): F25J3/04C25B1/04C25B15/00
CPCF25J3/04624F25J3/04787C25B1/04C25B15/00F25J3/0409F25J2210/50F25J2205/86F25J3/04612F25J3/04412F25J3/04296F25J2260/30F25J3/04636F25J2245/50Y02P20/133Y02E60/36C25B15/083C25B15/085C25B9/67C01B13/0237C01B13/0248C01B13/0288C01B2210/0004C01B2210/0009C01B2210/005C01B2210/0053F25J3/04496
Inventor 韩一松谭芳彭旭东劳利建李玲姚蕾任美凤徐申骏谢小雨
Owner HANGZHOU HANGYANG
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap