Leftymod for Factorio
Install this mod by inserting the zip into the mod folder.
It requires Bob's Metals, Chemicals and Intermediates & Bob's Library
This mod creates an alternative method to create plastic without coal, and also (if mining sulfur with Bob's Ores) without using Oil/Petroleum Gas. It unlocks along with the original recipes for carbon and plastic
DownloadMod Portal Link
Download (for 0.17+)
Mirror (for 0.17+)
Side Inserters mod
I contributed to the Side Inserters mod in 2016 (Game version 0.12) to get it to work with Bob's Mods properly.