Hydrogen energy
Company hydrogen energy layout
System, storage, transportation, addition, use, vertical integration.
Hydrogen can be divided into gray hydrogen, blue hydrogen and green hydrogen, depending on the carbon emission intensity of hydrogen produced from different raw materials.
hydrogen purification
863 Project-Self-designed and complete process of ultra-pure hydrogen equipment with high purity (6 9 purity)
At present, the main hydrogen storage methods can be divided into high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage, organic liquid hydrogen storage, solid hydrogen storage
|
Status |
hydrogen storage technology |
Technical Principle |
Advantages |
Disadvantages |
|
| gaseous |
|
High pressure gaseous hydrogen storage |
Hydrogen is compressed in a high-pressure vessel, and the storage density is related to the storage pressure and storage vessel type. |
Mature technology, low cost, low energy consumption, fast charging and discharging speed |
Low hydrogen storage density, high vessel pressure requirements, risk of hydrogen leakage and vessel explosion |
| Liquid |
|
cryogenic liquid hydrogen storage |
Liquefaction of hydrogen at low temperature (20K) |
High density, large volume specific capacity, short filling time |
Refrigeration energy consumption, high cost, high insulation requirements |
|
|
Organic hydrogen storage (liquid ammonia/methanol hydrogen storage) |
Use hydrogen to react with nitrogen or carbon under specific conditions to generate liquid ammonia or methanol, and realize the release of hydrogen by changing the reaction conditions |
High hydrogen storage density, high stability, good safety, convenient storage and transportation |
High cost, high dehydrogenation temperature, high energy consumption, will produce impurity gas |
|
| Solid State |
|
Metal Adsorption Hydrogen Storage |
The reversible reaction of hydrogen adsorption and release by metal alloys, carbonaceous materials, metal frames, etc. |
High density, high safety, high purity, convenient transportation, fast charging and discharging |
High cost, high price, constraints on hydrogen storage and release, high hydrogen release temperature |
|
Storage and transportation mode |
means of transport |
Economic distance (KM) |
Applicable Scenarios |
|
|
gaseous storage and transportation |
|
long tube trailer |
≤200 |
Intra-city distribution |
|
|
Pipeline (mixed transmission of pure hydrogen pipeline and natural gas pipeline) |
≥500 |
International, cross-city and intra-city distribution |
|
|
liquid storage and transportation |
|
Liquid hydrogen tank car |
500－1500 |
International, scale, long distance |
|
|
liquid hydrogen carrier |
1500－5000 |
International, scale, long distance |
|
|
solid state storage and transportation |
|
Vans |
200－500 |
experimental research phase |
Hydrogenation links rely on the main infrastructure for hydrogenation stations, in recent years, China's hydrogenation station construction speed growth has been explosive growth.
At present, the downstream consumption of hydrogen mainly covers the fields of transportation, power generation and chemical industry.
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