How would I go about 2D tile-based procedural generation?

I'm starting a Unity project with a friend soon, and for our game idea, we need to have tiles (each tile would be a whole screen-worth of map) that seamlessly connect with a smooth side scroll (no screen switching). We'd also want to delete those tiles once they'd left the screen. Is there a way to do this with Unity? I've look around and have only found tutorials for 3D procedural generation, so I figured it'd be best to ask here.

Sorry if this is hard to understand. If you need clarification, just ask.