Greysweater

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Plaidscientist (talk) 21:49, 21 February 2017 (UTC)

Welcome!

Hello, Greysweater, and welcome to Wikipedia! My name is Ian and I work with the Wiki Education Foundation; I help support students who are editing as part of a class assignment.

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If you have any questions, please don't hesitate to contact me on my talk page. Ian (Wiki Ed) (talk) 23:04, 21 February 2017 (UTC)

Peer Review

	Peer Review
	Hi! I took a look at our group's peer review, and I'll be peer reviewing your page as well as Bryochemist's page. Let me know if that is an issue! Geochem8 (talk) 19:33, 12 April 2017 (UTC)

Peer Review

Dear Greysweater,

Your article on Methanation is well organized. There is not much information beyond what is already in the Wikipedia article, but there is much that can be edited within the current article. It is concise and not overly technical; however, the sentence structure and wording of many sections should be reconsidered. The first sentence of the third paragraph and the first paragraph of the "Creation of SNG" section are examples of this.

While the vocabulary is not overly technical, certain words should be expanded to provide explanation or linked to a separate wikipedia article, such as "adatom", "gasification", "carbonyl", as well as the units "MW".

There is also room for further information regarding the chemical reactions. Since the possible mechanisms are discussed, it would be helpful to include a schematic of them. The exothermic nature of methanation is also mentioned so it would be good to include the free energy the reactions.

There is no information box in this article; however, I am not sure it is necessary. If there were to be one, I would include the classification of the reaction (reduction?), the enthalpy, and the standard free energy.

If there is other information regarding the research applications or safety harzards of methanation, that could be useful, but "applications" is a good way of ending the article. A "See Also" section at the end should be considered. More pictures of methane, ammonia, or an industrial product of methanation is a good addition.

Otherwise, this article is concise, impartial, and structurally efficient.

Hope this helps, Geochem8 — Preceding unsigned comment added by Geochem8 (talk • contribs) 01:59, 13 April 2017 (UTC)

Peer Review

Hi,

I will be reviewing yours and bananabread7's work that you have so far in your respective sandboxes. I will be doing so tonight unless I hear back from you to wait longer to review your work. Let me know if you have any questions, thanks.

(Bryochemist (talk) 18:25, 14 April 2017 (UTC))

Peer Review

Hi,

I will be submitting your review tomorrow morning, sorry about the delay.

(Bryochemist (talk) 01:17, 16 April 2017 (UTC))

Peer Review

Dear Greysweater,

I believe that you have added a good amount of information to the page you have been working on. The earlier version was missing a lot of information- specifically, details about the reaction mechanisms which are important since methanation is a chemical reaction, after all. However, some text that you decided to excise did leave me wondering what your reasoning was to do so. For example, you took out a section that talked about methanation as a potential means of producing methane gas as a substitute for natural gas (excluding any higher order hydrocarbons)... "In recent years, due to the rise of the natural gas price, the synthetic natural gas production through methanation would constitute an economical asset to reduce gas import dependance. Meanwhile, the actively investigated hydrogen production by photocatalytic or electrocatalytic water splitting powered by renewable energies (solar or wind) is regarded as future sources of hydrogen for carbon dioxide hydrogenation." This seems to have a potentially huge significance- especially since world reserves of natural gas are only expected to last another 100-200 years, at most. I also think that you should have kept in the information about the preferred reaction conditions or, at the least, reword it and expand on the Le Chatelier's text as it was far too brief. I am not sure if it is an error or I am interpreting the text incorrectly but you say "Methanation as a means of producing synthetic natural gas has been considered since the 1970's. More recently it has been considered as a way to store energy produced from solar or wind power. This would also allow it to serve as a potential carbon capture mechanism." I find issue with this because your link refers to carbon sequestration which is concerning carbon capture in the context of anthropogenic gas buildup- is that what this is used for? I say this because what you changed it from seems to suggest that it is not involved in wind or solar storage but that it is able to use the hydrogen produced from these renewable energy sources as a reactant (I might be wrong). Lastly, two last things to possibly include are the decomposition reaction of CO2 to CO as it impacts the ratio of reactants as well as a picture or two- maybe showing the mechanism of the reactions or even an industrial reactor that employs the methanation process. I will include a link to a website that I found to be interesting and helpful in learning about methanation in case you want to check it out. I hope this helps and let me know if you have any questions.

http://www.helmeth.eu/index.php/technologies/methanation-process

(Bryochemist (talk) 18:24, 16 April 2017 (UTC))