8500 plastic per minute from liquefaction (factorio v0.17)

You're going to need to make almost 17K plastic per minute in factorio v0.17 for 1K Science per minute. This build will produce around half of that.

HOW TO USE

1. Place blueprint
2. Provide steam at the top left
3. Provide water at the middle and bottom left. These must be separate offshore pumps
4. Empty a single barrel of heavy oil into the storage tank using the assembler
5. Provide coal and bots
6. Take away the plastic

NOTES

1. Due to a change in cemical plant craft times, and recipe changes, this build will probably not work with versions of factorio before 0.17
2. The build will eventually back up with gas, you could try adding more plastic makers
3. It's a sealed system. Don't use any of the heavy and/or light for anything else, otherwise it may stop
4. I recommend providing coal at the North and taking away plastic in the South
5. You'll need 9 boilers to make the steam or you could use nuclear reactors. The amount of steam required is around 31K per minute
6. If you use coal to make the steam, then this build uses close to 11 yellow belts (165 coal per second)