Brief description

An oil refinery is a coordinated set of vessels, pipes, and heat systems that separates crude oil into useful fractions at scale. It enables consistent fuels, lubricants, and heavy binders from the same feedstock.

Use / Function

• Fuel production: Produce consistent lamp oils and later fuels.
• Lubricants: Separate mid fractions for machinery.
• Construction binders: Concentrate heavy fractions for Bitumen and Asphalt.
• Process safety: Centralize heat, venting, and cooling.
• Scale: Local industrial to regional.

Operating principle

Refineries are built around controlled heating, vapor routing, and staged condensation.

1. Preheating: Crude warms to reduce viscosity and remove water.
2. Distillation: Heat separates fractions by boiling range using Distillation.
3. Condensation: Vapors cool in Pipes or coils.
4. Collection: Each fraction is stored in Containers.
5. Residue handling: Heavy ends are moved with an Oil Pump.

How to create it

Minimum functional version

1. Still area: Build a heat-safe still with a sloped condenser.
2. Cooling line: Run a coil through a water bath for steady condensation.
3. Storage: Provide separate sealed containers for each fraction.
4. Ventilation: Add Passive Ventilation near heat zones.
5. Transfer: Use a pump to move heavy residue without overheating.

Required technological level

Intermediate to advanced. Requires reliable metalwork, sealing, and heat control.

Materials needed

• Essential: Steel or Iron vessels, Brick or Concrete foundations, Copper coils or Glass condensers, Water for cooling.
• Tools: Cutting tools, hammers, sealants, and temperature control tools.
• Possible substitutes: Clay stills for small batches, air-cooled condensers where water is scarce.

Variants and improvements

• Batch refinery: Single still with manual cuts between fractions.
• Fractional column: Taller column for better separation.
• Vacuum distillation: Lower pressure to reduce cracking of heavy oils.
• Heat recovery: Reuse hot output to preheat incoming crude.

Limits and risks

• Fire and explosions: Flammable vapors ignite easily.
• Toxic fumes: Venting and distance from living areas are essential.
• Pressure buildup: Blocked outlets can rupture vessels.
• Contamination: Water or sediment lowers yield and can cause violent boiling.