Manganese 3

[KiwiHawk]

Manganese 3 currently takes methane. This is very different to every other ore so most people skip this recipe. Uses Natural Gas by default. Possible other alternatives:

• Fuel oil
• Carbon Dioxide
• Carbon Monoxide
• Methanol

[KiwiHawk]

From Pez: CO, H2 or residual gas could work (syngas is used for tier 2 smelting)... i mean, if you were thinking the methane route, methanol is also fine (kind of) you could also activate the peroxide (H2O2) and use that too

[DanielKote]

between methane and methanol methane might be the preferred route - methane and naptha both have uses in science (so at the very least there needs to already be a methane export), while methanol is used only inside the oil processing for plastic/resin/rocket fuel. Additionally I think part of the reason why manganese isnt used is due to it being a sorting only ore - meaning that besides it being a by-product of chrome (and thus just something to be gotten rid of in an efficient way), its potential use would be as a part of iron production (crushed ferric sort for iron + manganese) which would be a nice option except for the fact that T3 iron is an easy 3 step process with a low charcoal + limestone requirement while T3 manganese is a complicated process that not only requires methane but also about as much sulfuric acid as copper (on a per ingot basis), which is painful enough to consider T2 copper as an alternative to T3 copper... On the topic of methane alternatives; maybe oxygen? with potentially a decrease in sulfuric acid requirement.

[jodokus31]

I want to add, that Manganese 2 is already not very good, because it consumes a lot sulfuric acid, which is better to store for Copper 3. Also Manganese1 is not exactly cheap with the additional charcoal consumption.

My take would be: Manganese1 instead of 6 charcoal, max. 1 charcoal. Or give it back as CO2 like in stage 3 Manganese2 instead of consuming 80 sulfuric acid per 24 ore, rather 10. Or give it back as Sulfur dioxide gas