So To permanently delete a Facebook account, log in to the Facebook account,
and then submit the “Delete My Account” below
Click here to delete facebook account permmanently.
Click on Submit button. Enter the password to confirm it’s your account, and the captcha security spam check. Then click on Okay button. An email will be sent to indicate that the Facebook account will be deleted in 14 days.
During the 14 days account deletion grace period, do not login or sign in to Facebook account, nor perform any action utilizing Facebook, such as Share on Facebook on Like in Facebook, or login and sign up to other websites by using Facebook Connect (user name and password). Any interaction and usage of the Facebook account during the period will prevent the account from being deleted.