This mod changes some recipes in angel mods. It changes the coal to carbon in the carbon filter recipe. It swaps coke for carbon in solid fuel recipes. I think this is relevant because carbon has production routes alternative to processing coal ore. And it looks like cubes of porous coal, more suitable as a filter than coal, and more suitable as an absorber for flammable liquids. My mod-making and programming skills are zero, so I'm not sure I can support this mod. So if someone finds this idea worthwhile, use it.