CN1390635A - Hdrogen bearing method for activated carbn/alloy supercomposition - Google Patents
Hdrogen bearing method for activated carbn/alloy supercomposition Download PDFInfo
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- CN1390635A CN1390635A CN02117915A CN02117915A CN1390635A CN 1390635 A CN1390635 A CN 1390635A CN 02117915 A CN02117915 A CN 02117915A CN 02117915 A CN02117915 A CN 02117915A CN 1390635 A CN1390635 A CN 1390635A
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- Prior art keywords
- hydrogen
- storage
- alloy
- normal temperature
- activated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
A composite hydrogen-bearing material is composed of microporous activated carbon with high specific surface area (3000 sq.m/g) and hydrogen-bearing LaNi to TiMn alloy. Its advantage is high hydrogen bearing capacity.
Description
Technical field
The present invention relates to a kind of novel hydrogen storage material, belong to the scale storage and the conveying technology of hydrogen.
Background technique
Hydrogen is cleaner burning fuel, and is the energy of sustainable use.The fuel cell electric vehicle that with hydrogen is fuel has realized zero-emission, is the technology that world car industry is developed energetically.Up to the present, have only the storage problem of hydrogen on vehicle not have good solution.The liquefaction storing technology of hydrogen can not be as permanent solution because of the cost height, and high pressure compressed energy stored density is low, and overpressure.Alloy storage hydrogen has plurality of advantages, and particularly the hydrogen of Chu Cuning can meet or exceed liquid hydrogen density, and the alloy that has can realize at normal temperatures that suction puts hydrogen, and its key is that the deadweight of alloy is excessive so often is unsuitable for vehicle or more massive application.Utilize the super-activated carbon cryogenic absorption storage hydrogen of high-specific surface area, have plurality of advantages such as reserves are big, deadweight is little, and suction hydrogen desorption kinetics performance is good, the sorbent life-span is permanent, but need be low-temperature receiver cooling active carbon with the liquid nitrogen.Using of liquid nitrogen is unfavorable factor.Based on this situation, this patent invention is proposed.
Summary of the invention
In view of the problem that present hydrogen storage technology exists, the present invention proposes a kind of at lower pressure, near the hydrogen storage method that utilizes composite material under the normal temperature condition.At super-activated carbon proportion little but under the near ambient temperature condition the big but high characteristics of proportion of low, the absorption hydrogen amount of absorbing capacity, the two is combined into composite hydrogen storage material, near under the normal temperature condition, hydrogen is combined in absorption on the active carbon and the absorption in alloy, with suitable active carbon/alloy combination ratio, be implemented under the hydrogen storage material deadweight condition of allowing, reach maximum hydrogen-storage density.
The present invention is realized by following proposal.With active carbon with high specific surface area (2000-4000m
2/ g) with normal temperature or be lower than under the normal temperature that hydrogen is big, the hydrogen condition gentleness is put in suction, hydrogen/metallic atom mixes as the gas storage medium than hydrogen bearing alloys such as the lanthanum nickel system that can reach 2-3, ferrotitanium systems.The weight ratio of active carbon and alloy depends on the composition and the preparation process of alloy.Active carbon is different with the proportions of ingredients of different-alloy, is the target decision with the weight hydrogen-storage density that reaches 5wt%.Composite material through the hydrogen activation processing under the certain pressure, promptly be can be used for the storage of hydrogen.Pressure store is no more than 5MPa, and decompression can discharge.The temperature range of Chu Qing: normal temperature is to subzero 50 ℃.
The invention has the advantages that: 1, compare, significantly improved hydrogen storage temperature and hydrogen storage capability with the super-activated carbon adsorption hydrogen-storing.2, absorb storage hydrogen with alloy and compare, greatly reduce the hydrogen storage material deadweight.3, reduced the moulding difficulty of active carbon and alloy, hydrogen storage material density can be adjusted in a big way.
Embodiment
In vehicle-mounted 60 liters of fuel reservoirs, filling super-activated carbon/alloy (T
iMn
1.5) composite hydrogen storage material 100-200 kilogram.Provide the power of refrigeration system at normal temperatures or by car engine (or exhaust waste heat), make the temperature of gas storage medium remain on 0～-40 ℃ of scope, inflation pressure is in the 2-5MPa scope, but 2～4 kilograms of storage of hydrogen.Open valve reduces pressure and gets final product releasing hydrogen gas.
Claims (2)
1. the composite material of a storage of hydrogen is characterized in that, with specific surface area 2000-4000m
2The high surface activity carbon of/g and normal temperature or be lower than hydrogen under the normal temperature big, inhale hydrogen bearing alloys such as the lanthanum nickel system of putting the hydrogen condition gentleness, ferrotitanium system and mix as the gas storage medium, the weight ratio of the two is looked used alloy property, reaches the target decision of 5wt% by the weight density of storage hydrogen.
2. utilize the hydrogen storage method of the described hydrogen storage material of claim 1, hydrogen storage temperature is extremely-50 ℃ of normal temperature, storage hydrogen pressure 2-5MPa, and lower pressure is a release hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02117915A CN1390635A (en) | 2002-05-23 | 2002-05-23 | Hdrogen bearing method for activated carbn/alloy supercomposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02117915A CN1390635A (en) | 2002-05-23 | 2002-05-23 | Hdrogen bearing method for activated carbn/alloy supercomposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1390635A true CN1390635A (en) | 2003-01-15 |
Family
ID=4744568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02117915A Pending CN1390635A (en) | 2002-05-23 | 2002-05-23 | Hdrogen bearing method for activated carbn/alloy supercomposition |
Country Status (1)
| Country | Link |
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| CN (1) | CN1390635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337175B (en) * | 2008-08-07 | 2010-06-09 | 上海交通大学 | Lanthanum nickel alloy-expanded graphite solid compound adsorbent and preparation method thereof |
| CN110788329A (en) * | 2019-11-07 | 2020-02-14 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Carbon-containing composite hydrogen storage alloy and preparation method thereof, composite solid hydrogen storage tank and hydrogen storage performance testing method |
| CN112483890A (en) * | 2020-12-15 | 2021-03-12 | 山东大学 | Light metal hydride mixed filling hydrogen storage device capable of recovering heat energy |
-
2002
- 2002-05-23 CN CN02117915A patent/CN1390635A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337175B (en) * | 2008-08-07 | 2010-06-09 | 上海交通大学 | Lanthanum nickel alloy-expanded graphite solid compound adsorbent and preparation method thereof |
| CN110788329A (en) * | 2019-11-07 | 2020-02-14 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Carbon-containing composite hydrogen storage alloy and preparation method thereof, composite solid hydrogen storage tank and hydrogen storage performance testing method |
| CN112483890A (en) * | 2020-12-15 | 2021-03-12 | 山东大学 | Light metal hydride mixed filling hydrogen storage device capable of recovering heat energy |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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