Coal: A New Hope for Hydrogen Storage

Posted on 29-June-2023

Hydrogen is a clean-burning fuel that has the potential to replace fossil fuels in a number of applications. However, hydrogen is also a very light gas, which makes it difficult to store and transport. One potential solution to this problem is to store hydrogen in coal.

Coal is a porous material that can absorb hydrogen molecules. When hydrogen is adsorbed onto coal, it forms a strong chemical bond that holds the hydrogen in place. This makes coal a relatively stable and safe way to store hydrogen.

In addition to being stable, coal-based hydrogen storage is also very efficient. When hydrogen is released from coal, it can be done so at a high pressure, which makes it easier to transport and use.
There are a number of different ways to store hydrogen in coal. One method is to inject hydrogen gas into coal seams. Another method is to use coal fly ash, which is a byproduct of coal combustion, to store hydrogen.

The use of coal as hydrogen storage has a number of potential advantages. First, it is a relatively inexpensive material. Second, it is a mature technology that is already in use in a number of applications. Third, it has the potential to store a large amount of hydrogen.

However, there are also some potential disadvantages to using coal for hydrogen storage. First, it is a fossil fuel, and the combustion of coal releases greenhouse gases into the atmosphere. Second, the extraction and processing of coal can have a negative impact on the environment.

Overall, the use of coal as hydrogen storage is a promising technology with the potential to overcome the challenges of storing and transporting hydrogen. However, more research is needed to assess the environmental impact of this technology and to develop more efficient methods of storing hydrogen in coal.

Here are some of the benefits of using coal as hydrogen storage:

It is a relatively inexpensive material.
It is a mature technology that is already in use in a number of applications.
It has the potential to store a large amount of hydrogen.

Here are some of the challenges of using coal as hydrogen storage:

It is a fossil fuel, and the combustion of coal releases greenhouse gases into the atmosphere.
The extraction and processing of coal can have a negative impact on the environment.
More research is needed to assess the environmental impact of this technology and to develop more efficient methods of storing hydrogen in coal.

The future of coal as hydrogen storage:

The future of coal as a hydrogen storage is uncertain. On the one hand, the technology has the potential to overcome the challenges of storing and transporting hydrogen. On the other hand, the environmental impact of using coal as hydrogen storage needs to be carefully considered.

More research is needed to assess the environmental impact of this technology and to develop more efficient methods of storing hydrogen in coal. If these challenges can be overcome, then coal could become a viable option for storing hydrogen.

Global Liquid Co2 Market

Global Hydrogen Electrolyzer Market

Source: Study from Pennsylvania State University

Img Src: Grist / Getty images