Natural Gas to generate hydrogen, fuel cell?

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Discussion Overview

The discussion revolves around the use of steam reforming of natural gas to generate hydrogen for fuel cells, exploring the difficulties and implications of this process in relation to fuel cell technology. It touches on theoretical, conceptual, and practical aspects of hydrogen production and fuel cell operation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants question the major difficulties associated with using steam reforming of natural gas for fuel cells.
  • Others suggest that there may not be significant difficulties, proposing that natural gas can be reformed or used directly.
  • There is a suggestion that hydrogen produced from steam reforming could be utilized in fuel cells.
  • One participant mentions a setup where hydrogen content in natural gas is extracted for use in fuel cells, indicating a potential method of integration.
  • A later post discusses the ongoing research into reformer-fuel-cell systems and raises concerns about the environmental impact of fossil fuel reforming, particularly regarding carbon dioxide emissions.
  • There is a mention of the potential for carbon capture and storage to mitigate emissions, though this adds to the cost of the process.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the difficulties of using steam reforming of natural gas for fuel cells, with multiple competing views presented regarding its feasibility and environmental implications.

Contextual Notes

Some limitations include the dependence on definitions of "difficulty," the unresolved nature of the environmental impact debate, and the varying assumptions about the efficiency and practicality of hydrogen production methods.

4220Fox
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Hi all, one last question for today - Given steam reforming of natural gas to generate hydrogen, what is the major difficulty with it with respect to most fuel cells? Thank you,
 
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I'm not sure there is a difficulty with it. You can reform it or use it directly.
 
So we would use the hydrogen (Made from steam reforming via natural gas) to make the fuel cells then? Thank you-
 
Any other fuel cell pros in the community?
 
I'm not really sure what you are asking. Could you rephrase? Have you done any of your own research?
 
This kind of sounds like an assignment/homework question.

Can you please post your requirements?
 
4220Fox said:
So we would use the hydrogen (Made from steam reforming via natural gas) to make the fuel cells then? Thank you-
I think I've seen (a test setup described) where the hydrogen content in natural gas is used by having the fuel cell connected to the town gas system and incorporating a filter to extract only the light molecules of hydrogen and use that as its fuel.
 
4220Fox said:
Hi all, one last question for today - Given steam reforming of natural gas to generate hydrogen, what is the major difficulty with it with respect to most fuel cells? Thank you,

http://en.wikipedia.org/wiki/Steam_reforming

Disadvantages of reforming for supplying fuel cells

The reformer–fuel-cell system is still being researched but in the near term, systems would continue to run on existing fuels, such as natural gas or gasoline or diesel. However, there is an active debate about whether using these fuels to make hydrogen is beneficial while global warming is an issue. Fossil fuel reforming does not eliminate carbon dioxide release into the atmosphere but reduces the carbon dioxide emissions as compared to the burning of conventional fuels due to increased efficiency.[8] However, by turning the release of carbon dioxide into a point source rather than distributed release, carbon capture and storage becomes a possibility, which would prevent the carbon dioxide's release to the atmosphere, while adding to the cost of the process.
 

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