Talk:Sabatier reaction

message: This is an important page and needs to be expanded upon.  Currently, the Sabatier Reaction seems to be only used in discussions of how to create rocket fuel from the lunar surface or the martian surface.  However, this reaction is potentially interesting for discussions of a hydrogen economy.  In particular, methane would appear to be an existing method for transporting hydrogen; it transports 25% hydrogen by weight (compare to carbon nanotubes, glass beads, or metal hydrides); it has better volume properties than pure hydrogen; and there exist fuel cells that will directly consume methane.
Discussions of cost information for synthesizing methane from water and carbon dioxide are hard to come by.  Other discussions of how practical it might be to expand the existing methane economy for transportation purposes while recycling carbon dioxide would be interesting.
—Preceding unsigned comment added by 66.124.235.194 (talk • contribs) 15:56, 18 March 2005 
:Currently the reaction goes in the other direction.  Most hydrogen is produced from methane.  To make the Sabatier reaction go, it requires much cheaper hydrogen, or much more expensive fossil fuels. pstudier 00:40, 2005 Jun 10 (UTC)
::The most important thing is the energy balance, even if the prices of hidrogen generation or fuel don't move. But this is a hard work, and the way to do the study can change the results. So, I think that a comparison of a few works is needed. --Proximo.xv 12:07, 12 December 2006 (UTC)
thread_title: Untitled

message: I plan on including more details of the reaction process and how a reactor would work (in a new section entitled "Process"), however I'm not a chemist and finding detailed information on this that I can understand is apparently not very easy. So far I've got a ceramic (alumina) foam catalyst cooking at around 400-700 degrees F; the reaction is exothermic meaning the exhaust (methane and steam) comes out hotter than the intake. Apparently the reaction occurs spontaneously in these conditions, so a pump to keep the CO2 and 4H2 moving is all that is required. Using a ruthenium catalyst can reduce the starting temperature significantly, nickel has a higher starting temperature. Below are some links that have some more information on the process:
http://pubs.acs.org/doi/abs/10.1021/i260051a007
http://www.owlnet.rice.edu/~ceng301/34.html
There are also numerous advantages to manufactured methane over fossil fuels and I believe this should be explained in the article as well - including carbon neutrality, existing pipeline infrastructure, ease of compression and storage etc; however finding people who want to burn methane (instead of going backwards and turning it into hydrogen) to cite as references is also a pain.---Puff (talk) 16:13, 30 July 2009 (UTC)
thread_title:  Improvements 

message: I read t5hat this reaction is an exothermic reaction.Agre22 (talk) 14:40, 17 September 2009 (UTC)
thread_title: An exothermic reaction

message: Why would it be that important to make Methane on Mars surface when we now know there are vast quantities of water available there, from which the more efficient rocket propelant Hydrogen+Oxygen could be easily produced ?
Almipa (talk) 15:17, 16 April 2010 (UTC)
thread_title: Rocket propellant on Mars surface

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thread_title:  External links modified 

message: A lot of reactions on this page ask for a citation, which seems unrequired. Anyone with a little bit of knowledge on how chemistry works can understand the reaction easily.
Especially "Regardless of which method of oxygen fixation is utilized, the overall process can be summarized by the following equation:". Does that really needs a citation ? --2A02:A03F:1655:6500:70BA:5523:3AF8:83BF (talk) 10:45, 12 July 2020 (UTC)
replies: text: citations are not given for those who are familiar with the chemistry, but for those who are unfamiliar; and unreferenced opinions might be original research, which is forbidden. the good news is, if it's familiar then it ought to be easy to cite. -- Waveguy (talk) 16:52, 27 October 2020 (UTC)

text: that said, it's the previous paragraph that is controversial; finding a cite for that one would obviate the need for this one. -- Waveguy (talk) 19:51, 27 October 2020 (UTC)
thread_title:  "Citation needed" 

message: Isn't that an oxymoron?
Would "Synthetic Methane as replacement for natural gas" be more accurate? Kai Petzke (talk) 17:29, 15 March 2024 (UTC)
thread_title:  What is "Synthetic Natural Gas"