Buy Pasmo or Suica from Kansai Airport

I plan to travel to Osaka and then transfer to Tokyo in May 2014.
1. Can I buy Pasmo or Suica card at Kansai airport when I arrived? If not, can I buy Icoca card at Kansai airport.
2. Can I pay Kansai airport limousine with one of these cards?
3. Can I refund credit amount in Icoca card at Narita Airport?

Thank you.

1. Can I buy Pasmo or Suica card at Kansai airport when I arrived?

No, only local cards can be purchased in each network.

If not, can I buy Icoca card at Kansai airport.

Yes

2. Can I pay Kansai airport limousine with one of these cards?

No, it's cash or credit only

http://www.kate.co.jp/pc/e_lim_guide/e_lim.html

3. Can I refund credit amount in Icoca card at Narita Airport?

No, it must be done inside the card's home network.

The ICOCA is the SUICA for the JR West area of operations (Kansai). You cannot buy a SUICA (JR East) in Osaka (JR West).

You can use an ICOCA Card for transportation on most of the Suica-PASMO network in and around Tokyo. (Exceptions: Tama Monorail line, Yokohama Seaside line, Chiba Urban Monorail lines and Kanto Railway lines.)

And, you can use e-money stored on the ICOCA Card also for payment at cashiers / drink vending machines which accept Suica and PASMO Cards.

Can I refund credit amount in ICOCA card at Narita Airport?

No, you cannot do so.
You can return an ICOCA Card only to JR-West. From the amount of the stored e-money, 220 yen is deducted as a handling fee, unless it is below 220 yen. The deposit (500 yen) is paid back.

(Check also "What is covered and what is not?" and "Basic Use" in this article.
http://www.japan-guide.com/e/e2359_003.html)