# Petroleum gas processing - Stage 2 (technology) internal name `petroleum-gas-mk02` · tier 5 (Chemical science pack, [tier 5](https://factorio.kalzumeus.com/tier/5.md)) HTML page: https://factorio.kalzumeus.com/tech/petroleum-gas-mk02/ ## Cost 700 units of (1 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 2 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 3 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 6 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 10 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 120 s each. ## Requires (1) - [Chemical science pack](https://factorio.kalzumeus.com/tech/chemical-science-pack.md) ## Leads to (5) - [Cadaveric arums - Stage 3](https://factorio.kalzumeus.com/tech/cadaveric-arum-mk03.md) - [Dhilmos - Stage 4](https://factorio.kalzumeus.com/tech/dhilmos-mk04.md) - [Moss - Stage 4](https://factorio.kalzumeus.com/tech/moss-mk04.md) - [Simik - Stage 4](https://factorio.kalzumeus.com/tech/simik-mk04.md) - [Xenos - Stage 4](https://factorio.kalzumeus.com/tech/xeno-mk04.md) ## Unlocks (9 recipes) ### Natural gas (`bio-oil-4`) - 6 s · tier 5 - Ingredients: 100 × [Bio oil](https://factorio.kalzumeus.com/fluid/bio-oil.md) - Results: 90 × [Natural gas](https://factorio.kalzumeus.com/fluid/natural-gas.md), 10 × [Petroleum gas](https://factorio.kalzumeus.com/fluid/petroleum-gas.md) - Made in: Gas refinery MK 01, Gas refinery MK 02, Gas refinery MK 03, Gas refinery MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Natural gas (`bio-oil-5`) - 5 s · tier 5 - Ingredients: 100 × [Bio oil](https://factorio.kalzumeus.com/fluid/bio-oil.md), 1 × [Nexelit plate](https://factorio.kalzumeus.com/item/nexelit-plate.md) - Results: 120 × [Natural gas](https://factorio.kalzumeus.com/fluid/natural-gas.md) - Made in: Gas refinery MK 01, Gas refinery MK 02, Gas refinery MK 03, Gas refinery MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Refined syngas (`bio-oil-6`) - 5 s · tier 5 - Ingredients: 100 × [Bio oil](https://factorio.kalzumeus.com/fluid/bio-oil.md), 2 × [Nickel plate](https://factorio.kalzumeus.com/item/nickel-plate.md) - Results: 120 × [Refined syngas](https://factorio.kalzumeus.com/fluid/refsyngas.md) - Made in: Gas refinery MK 01, Gas refinery MK 02, Gas refinery MK 03, Gas refinery MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Refined syngas (`coalbed-gas-to-refsyngas`) - 4 s · tier 5 - Ingredients: 200 × [Coalbed gas](https://factorio.kalzumeus.com/fluid/coalbed-gas.md), 300 × [Hot air](https://factorio.kalzumeus.com/fluid/hot-air.md), 1 × [Filtration media](https://factorio.kalzumeus.com/item/filtration-media.md) - Results: 300 × [Refined syngas](https://factorio.kalzumeus.com/fluid/refsyngas.md) - Made in: Gas refinery MK 01, Gas refinery MK 02, Gas refinery MK 03, Gas refinery MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Hydrogen (`high-distillate-separation-hydrogen`) - 4 s · tier 5 - Ingredients: 100 × [Condensed distillates](https://factorio.kalzumeus.com/fluid/condensed-distillate.md), 1 × [Tin chromium alloy](https://factorio.kalzumeus.com/item/sncr-alloy.md) - Results: 400 × [Hydrogen](https://factorio.kalzumeus.com/fluid/hydrogen.md) - Made in: Gas refinery MK 01, Gas refinery MK 02, Gas refinery MK 03, Gas refinery MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Methane (`natural-gas-to-methane`) - 12 s · tier 5 - Ingredients: 400 × [Natural gas](https://factorio.kalzumeus.com/fluid/natural-gas.md), 1 × [Tin chromium alloy](https://factorio.kalzumeus.com/item/sncr-alloy.md) - Results: 400 × [Methane](https://factorio.kalzumeus.com/fluid/methane.md) - Made in: Filter MK 01, Filter MK 02, Filter MK 03, Filter MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Pure natural gas (`pure-natural-gas`) - 10 s · tier 5 - Ingredients: 100 × [Purified natural gas](https://factorio.kalzumeus.com/fluid/purified-natural-gas.md), 300 × [Water](https://factorio.kalzumeus.com/fluid/water.md), 1 × [Activated carbon](https://factorio.kalzumeus.com/item/active-carbon.md) - Results: 100 × [Pure natural gas](https://factorio.kalzumeus.com/fluid/pure-natural-gas.md), 40 × [Rich gas](https://factorio.kalzumeus.com/fluid/rich-gas.md) - Made in: Filter MK 01, Filter MK 02, Filter MK 03, Filter MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Purified natural gas (`purified-natural-gas`) - 4 s · tier 5 - Ingredients: 100 × [Refined natural gas](https://factorio.kalzumeus.com/fluid/refined-natural-gas.md), 50 × [Ethylene glycol](https://factorio.kalzumeus.com/fluid/ethylene-glycol.md), 1 × [Filtration media](https://factorio.kalzumeus.com/item/filtration-media.md) - Results: 100 × [Purified natural gas](https://factorio.kalzumeus.com/fluid/purified-natural-gas.md) - Made in: Gas processing unit MK 01, Gas processing unit MK 02, Gas processing unit MK 03, Gas processing unit MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md) ### Refined syngas (`refined-natural-gas-to-refsyngas`) - 8 s · tier 5 - Ingredients: 100 × [Refined natural gas](https://factorio.kalzumeus.com/fluid/refined-natural-gas.md), 1 × [Chromium](https://factorio.kalzumeus.com/item/chromium.md) - Results: 50 × [Refined syngas](https://factorio.kalzumeus.com/fluid/refsyngas.md), 500 × [Flue gas](https://factorio.kalzumeus.com/fluid/flue-gas.md) - Made in: Gas refinery MK 01, Gas refinery MK 02, Gas refinery MK 03, Gas refinery MK 04 - Unlocked by: [Petroleum gas processing - Stage 2](https://factorio.kalzumeus.com/tech/petroleum-gas-mk02.md)