How to Hide Yourself as the Administrator of a Page on Facebookby Shawn Farner
If you run a Facebook business page for your hobby or business, you may not want people to know who is running the page on the administrative side of things. Fortunately, Facebook has a built-in feature that enables you to post as the page name instead of using your own name. Not only does this make the message seem more authoritative, as it's coming from your brand, it also conceals your identity as the administrator of the page.
Sign in to Facebook using your account credentials.
Click on the name of your page in the left sidebar of your homepage to open the page.
Click the "Change to [page name]" link at the top of the page. This allows you to post to your page with the page name itself, instead of using your own name, which hide your administrative identity.