Upon making a recipe for the metallurgic infuser based on the example on the curseforge page I get this error

Error creating recipe mekanism:kubejs_generated_1_mekanism_enriched_iron[mekanism:metallurgic_infusing]: {"type":"mekanism:metallurgic_infusing","output":{"item":"mekanism:enriched_iron","count":1},"itemInput":{"ingredient":{"item":"minecraft:iron_ingot"}},"infusionInput":{"tag":"minecraft:coal","amount":1}}: com.google.gson.JsonSyntaxException: Unknown infuse type tag 'minecraft:coal'

Here is the recipe.

event.recipes.mekanism.metallurgic_infusing('emendatusenigmatica:steel_ingot', 'mekanism:enriched_iron', "minecraft:coal", 1),

The last entry should be not a minecraft item, but a mekanism infuse type. For your case it is mekanism:carbon. The post is 4 months old, maybe you figured it out yourself)