4 replies to this topic

[Jose Alonso]

Hello,

I am working in a project about CO2 recovery from cider fermentation. I live in the north of Spain, (Asturias) and Cider is as beer in ireland. I don't know what method is used to CO2 recovery. I think it's top secret for most factories. I read several projectos about this topic and saw that the basic method y Backus or Reich method, but in think is a outdated method (was written in 1924). I need to know what method is using now to CO2 recovery. I would appreciate your help.

Jose

[kkala]

I am working in a project about CO2 recovery from cider fermentation. I live in the north of Spain, (Asturias) and Cider is as beer in ireland. I don't know what method is used to CO2 recovery. I think it's top secret for most factories. I read several projectos about this topic and saw that the basic method y Backus or Reich method, but in think is a outdated method (was written in 1924). I need to know what method is using now to CO2 recovery. I would appreciate your help. Jose

You mean that slightly sweet, slightly alcoholic drink from potatoes? It is also common in North of France, called "cidre". I liked the drink, although I do not know about CO2 recovery, evidently intending to obtain pure CO2 from the fermentation (assumed at atmospheric pressure).
1. Probably you can get some useful info or orientation by reading http://en.wikipedia....n_sequestration.
2. Recovered CO2 may not have a competitive price, since nowadays pure CO2 (for coca-cola, etc) can be obtained from wells. At least this was a conclusion from a feasibility study referring to burning of some rich in CO2 natural gas for electricity (2001).
WWW may indicate a different opinion, if CO2 recovery occurs near big cities.

Note
Following cases does not seem to be relevant.
α. In coal gasification, after shift conversion (CO+H2O--CO2+H2), CO2 can be absorbed in water at e.g. 40 Barg; if water is brought to atmospheric pressure, CO2 is released.
β. In one electrical station (Germany, pilot operation) CO2 is liquified and stored in natural reservoirs.
γ. In a Project of Power station burning LPG, stack gases would be inserted into sea water algae to retain CO2 (this was only a rumor, worthy or not; project was canceled).

[Jose Alonso]

Thank you kkala. Cider, is a fermented beverage made from apple juice http://en.wikipedia.org/wiki/Cider. I know, recovered CO2, is unprofitable. but I need it for legal reasons.

[golden_gate]

Hi,

Industrial CO2 recovery from flue gas for environmental reasons (carbon storage and sequestration) usually use a form of amine solution: monoethanol amine (MEA), DMEA etc.

A standard absorber - stripper process is usually used.: absorbtion of CO2 into the amine solution followed by regeneration of the amine in the stripper.

[riven]

Hi,

Industrial CO2 recovery from flue gas for environmental reasons (carbon storage and sequestration) usually use a form of amine solution: monoethanol amine (MEA), DMEA etc.

A standard absorber - stripper process is usually used.: absorbtion of CO2 into the amine solution followed by regeneration of the amine in the stripper.

Consider
http://www.pureco2nf...ntpage&Itemid=1