Hello I was wondering if there is a way to hide or replace the original recipe so that there aren't duplicates in the crafting menu.

Nevermind I found a mod called Recipe Hider that lets you hide crafting recipes on the crafting menus.

There are currently three ways to "hide" a recipe:
1. Hide it from the hand-crafting menu
2. Hide it from machine-crafting menu
3. Hide it from both crafting and Factoriopedia
The main issue is the recycler, recycling uses separate recipe categories and recycling recipes, so even if the original recipe is hidden, the Recycler may still show and use its corresponding recycling recipe
Im working on handling recycling recipes properly in the next update, including making sure they are hidden when the original recipe is hidden.