What is the difference between the Babylonia that were mentioned in the Old Testament and the Babylonia that was mentioned in the book of Revelation?

Literally Babylon in the Old Testament was a literal place around where present day Iraq is located. It was the responsible to the 70 year desolation of the nation of Israel at the hands of King Nebuchadnezzar.

That said, there is a spiritual counterpart which those Old Testament scriptures allude to.  When we take those accounts (where the Lord gives a message of doom to Prince of Babylon) spiritually it is the same as the Babylon in the book of Revelation.

Babylon which originally meant the gateway to God—was changed to mean “confusion”.

In Revelation you have two woman (one pure the other a harlot) and two cities (one pure and beautiful and the other a cage of every unclean bird).

Both are describing the same thing.

The woman who takes flight is the Church in the wilderness—who eventually becomes the Bride.

The other woman (Jezebel in type), a whore who rides the beast (government).—she is the false church because she is not pure, but fornicated with earthly powers.

Babylon is the Mother of harlots—that is our link between the two.

The New Jerusalem comes down as a bride adorned for her husband—and that is our link for putting the chaste woman, the Bride together with the New Jerusalem

Revelation is a book of symbols as we are told in the first chapter ‘signified” or sign-ified. The book of Revelation is a parallel between the true and false church throughout the gospel Age.