while it is possible, remember to take into account that adsorption requires a lot of energy and unless your adsorption system is fully "intermittent" meaning that it is not continuous as are camper refrigerators, then yes, you could store the excess energy. But the only way to economically extract the stored energy would be in refrigeration. A unit sized large enough to do any noticeable cooling for, say, a room in your house, would require a very LARGE source.
look at:http://www.cedarcreeksoftware.com/solarice.pdf
And you'll see what it takes to actually get a usable amount of "cold" from solar.
Here is another option.
Disclaimer:
This is intended for reference ONLY and is not to be construed as an advertisement for this company.
http://www.partsonsale.com/sundanzer.html
Using a device of this type to "store" excess might be good, but if it is just "excess" I would want to trust my milk and cookies to it. . . I used this page because it has a comparison chart for usage. . .
Doug