Nitrox & Advanced Gas Processing -- From Gas Starvation to Infinite Fuel

Outworld Station nitratium harvesting, biomass-to-gas conversion, automated nitrox production chains, and the advanced gas processing tree that breaks your mid-game fuel bottleneck.

Your Fusion Reactor Is Starving and You Do Not Know Why

You built a gas extractor. Hooked it up. Nitrox was flowing. Then Station Level 6 hit, you added a second Fusion Reactor, and suddenly your Nitrox buffer is dropping faster than you can produce it. You check the gas vent – still pumping. You check the refinery – still running. But the numbers do not add up.

The problem is not a bug. It is that basic gas extraction tops out hard around Level 6-7. The solution is advanced gas processing: biomass conversion, nitratium harvesting, and a fully automated production chain that scales past what any single gas vent can supply.

The Short Version

Basic gas extraction gives you ~150-200 units/hour. One Fusion Reactor alone burns 720 units/hour of Nitrox (12/min). At Level 6+, you need advanced processing: Nitratium Nodes for unlimited raw gas, biomass processors for organic-to-gas conversion, and a multi-input chemical synthesizer to turn raw gasses into Nitrox at industrial scale. This guide shows the full chain.

Quick-Fix: The Three-Tier Gas Upgrade Path

Before diving into the full build, here is where you are and where you need to be:

TierGas SourceOutputWhenWhat You Need
Tier 1Single Gas Vent + Refinery~200/hr NitroxLevel 1-51 Gas Extractor + 1 Refinery
Tier 2Multiple Vents + Chemical Synthesizer~600/hr NitroxLevel 6-82-3 Extractors + 1 Chem Synth
Tier 3Nitratium Nodes + Biomass + Automation1500+/hr NitroxLevel 8+Nitratium Harvester + Biomass Processor + Drone Network

If you are at Level 6 and your Nitrox is draining, jump straight to Tier 2. Skip Tier 1 expansions – they are a dead end.

Step 1: Nitratium – The Mid-Game Gas Gamechanger

Nitratium (sometimes called Nitridium in older patches) is a resource node found on certain asteroid fields and outer planets. It looks like a purple crystal cluster. Unlike gas vents that deplete, Nitratium Nodes regenerate over time.

Where to Find Nitratium

LocationNode CountRegeneration RateDanger Level
Cerberus Belt3-5 nodes30/min per nodeLow
Outer Asteroid Field2-3 nodes25/min per nodeMedium
Junk Yard (near Cerberus)4-6 nodes35/min per nodeHigh (Hostile)
Lava World Craters1-2 nodes40/min per nodeExtreme

Best early spot: Cerberus Belt. Low danger, decent node count, close to starting area.

Setting Up Nitratium Harvesting

  1. Build a Nitratium Harvester (unlocked after Chemical Processing research, Station Level 7+)
  2. Place it directly on a Nitratium node
  3. Connect power (50/sec per harvester)
  4. Output goes to a storage tank or directly to your Chemical Synthesizer

One harvester on one node produces enough raw gas for one Fusion Reactor + one Chemical Synthesizer running at 60% capacity.

Step 2: Biomass-to-Gas Conversion

Biomass processing is the part most players miss. It lets you convert organic materials into Hydrogen and Oxygen – the building blocks of Nitrox. This is critical when your gas vents are far away or depleted.

The Biomass Chain

InputProcessOutputRate
10 Organic WasteBiomass Processor5 Biomass Slurry10/sec
5 Biomass SlurryChemical Synthesizer3 Hydrogen + 2 Oxygen8/sec
3 Hydrogen + 2 OxygenChemical Synthesizer1 Nitrox4/sec

Where to get Organic Waste: Asteroid mining byproduct, crop farming on Terran planets, or recycling organic modules.

Biomass Loop Tip

Set up a dedicated recycling line that feeds asteroid byproducts into your biomass chain. Most players trash this stuff. It is free fuel. I run a single Biomass Processor fed by one Recycling Drone and it covers 30% of my Nitrox demand at Level 8.

Step 3: The Automated Production Chain

Here is the full build for a self-sustaining Level 8+ gas processing line:

Bill of Materials

BuildingQuantityPower DrawOutput
Nitratium Harvester2100/sec60 raw gas/min
Gas Extractor (any vent)130/sec~200 base gas/hr
Chemical Synthesizer280/sec each40 Nitrox/min combined
Biomass Processor140/sec15 slurry/min
Storage Tanks404x buffer
Drone Hub + 3 Drones120/secLogistics

Total power draw: ~350/sec – one Fusion Reactor can handle this with headroom.

Layout Priority

  1. Gas Extractor on the closest vent feeds the Chemical Synthesizers directly
  2. Nitratium Harvesters feed into a shared storage tank
  3. Biomass Processor feeds into the same Chemical Synthesizers
  4. Chemical Synthesizers output Nitrox into a dedicated tank
  5. Drones distribute Nitrox to Fusion Reactors

Do Not Mix Outputs

Keep your raw gas tank and your biomass tank separate until they reach the Chemical Synthesizer. Mixing them in a single tank causes priority problems -- the synthesizer will grab whatever is available instead of maintaining a balanced input. I lost a whole station to this when my raw gas tank filled with biomass slurry and the synthesizer could not convert it.

Real Scenario: My Lava World Nightmare

I built my mid-game station on a Lava World. Great for minerals. Terrible for gas. The nearest gas vent was three wormhole jumps away on a Terran planet. My Fusion Reactors were burning Nitrox at 24/min (two reactors) and my supply line was one freighter making a 5-minute round trip.

The fix: I dropped two Nitratium Harvesters on nearby Cerberus Belt nodes, set up a small Biomass Processor fed by asteroid mining byproducts, and built two Chemical Synthesizers on my main station. The Nitratium freighters delivered raw gas every 3 minutes. The biomass loop covered the gap. Total Nitrox production went from struggling at 300/hr to a stable 1800/hr.

Never lost power on that save again.

Scaling Beyond Level 10

Once you hit Station Level 10, gas demand skyrockets. Here is the scaling formula:

  • 1 Fusion Reactor Mk2 = 30 Nitrox/min = 1800/hr
  • 1 Advanced Chemical Synthesizer (unlocked Level 10) = 40 Nitrox/min = 2400/hr
  • 3 Nitratium Harvesters + 1 Biomass Processor = enough raw gas for ~4000/hr

For a Level 12 station running 3 Fusion Mk2 reactors, you need:

ComponentQuantity
Nitratium Harvester4
Biomass Processor2
Chemical Synthesizer3 (or 2 Advanced)
Storage Tanks6
Drone Hub1 (dedicated to gas logistics)

See our Fusion Reactor Guide for exact fuel consumption math, and the Deep Space Gas Giant Mining Guide for remote gas outpost setups.

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