Making Methane a More Useful Fuel: Catalyst Possibilities?

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Discussion Overview

The discussion revolves around the potential for enhancing the utility of methane as a fuel, particularly by converting it into longer hydrocarbon chains. Participants explore the feasibility of this conversion and the implications for energy content compared to other fuels like propane and gasoline.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the definition of "more useful as a fuel," prompting further clarification on what metrics are being considered.
  • Another participant suggests that increasing the energy content of methane could make it more comparable to propane.
  • It is noted that constructing longer carbon chains from methane requires energy, similar to processes used in oil refineries.
  • Some participants mention existing processes like Fischer-Tropsch and Bergius for producing synthetic fuels, indicating that while conversion is technically possible, it may not be efficient.
  • A later reply emphasizes the efficiency concerns associated with converting methane to longer hydrocarbons.

Areas of Agreement / Disagreement

Participants express differing views on what constitutes "more useful" and whether methane can be effectively converted to longer hydrocarbons. There is no consensus on the efficiency of such processes or the best approach to enhance methane's utility as a fuel.

Contextual Notes

The discussion highlights the complexity of energy content comparisons between different fuels and the energy requirements for chemical transformations. Specific assumptions about efficiency and utility remain unresolved.

iwant2beoz
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This might be a stupid question so forgive me if it is. I am looking for a way to make methane more useful as a fule and it seems to me that to do that I would have to make it into a longer hydro-carbon chane. Is there a catalyst that could be used to do this? Thanks in advance.
 
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Define "more useful as a fuel".
 
Borek said:
Define "more useful as a fuel".
Yeah; by most standards, methane is pretty useful as a fuel.
 
A higher energy content, like propane.
 
It takes energy to make methane have a higher energy content by constructing a longer carbon chain. That's what they do in oil refineries: they break down long-chain molecules into shorter chain stuff, and take short stuff and synthesize longer-chain molecules, until Chief Engineer Goldilocks says the product is "Just right".

http://en.wikipedia.org/wiki/Oil_Refinery
 
iwant2beoz said:
A higher energy content, like propane.
Per what unit? Natural gas is higher per unit mass than propane, but a little lower per unit volume (in liquid form). Still not sure what that has to do with being useful though.
 
Maybe I should rephrase my question. I want to make natural gas comporable to gasoline as a fuel?
 
Then, you'll have to link CH4 molecules until you start to obtain octane [C8H18] and larger molecules. As was stated earlier, it takes energy to do this. It is done somewhat on a limited basis in current petroleum refineries to produce gasoline, diesel fuel, etc., from crude oil feed stock.

There are other processes, like the Fischer-Tropsch and the Bergius processes, which produce synthetic liquid fuels from coal.

http://en.wikipedia.org/wiki/Fischer–Tropsch_process
 
So it technically can be done but its not very efficient. Well thank you
 

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