problem with oil refining.

[madzarathustra]

I have watched Katherineofsky's video on this and got a basic set up similar to hers with a water bus and oil bus for each refinery and having no problems from the yellow and red oils, however I am having problems with the black oil or petroleum.

http://steamcommunity.com/profiles/76561198004684762/screenshot/857228716253765514

The actual problem I am having is when I put 2 plants together in the petroleum line the oil slowly trickles into the first plant and flows into the second plant at a fantastic rate, I thought this may be due to one making sulphur and so needed water and oil, and the other needed only oil for plastics.

So to test this I made a third plant next to the plastics plant and connected it up using mostly underground pipes.

http://steamcommunity.com/profiles/76561198004684762/screenshot/857228716253764753

The third plant now churns out as is intended while the other 2 are churning out at slower rates the sulphur at an even slower rate.

My petroleum production came to a complete halt when my light oil and heavy oil lines filled up, but after I took out some solid fuels and made a thrird storage silo for lubricants it started to work again.

Do all 3 resources need to be flowing for any of them to flow or was that a minor bug I experienced?

[aub]

As I recall, any resource that's not flowing or being used will result in production of all three halting.

[Lethal]

Any resource that is blocked results in it halting production. For this reason, people have done the math for ratios between oil refineries, heavy oil cracking, and light oil cracking. You can store oils in storage tanks that hold 25k liquid or other means like barrels/wagons to keep things running smooth. Or opt to find the right ratio to crack the oils into other desireable liquids.

This site says the optimal ratio for Advanced Oil Refinery:Heavy Oil Cracking:Light Oil Cracking
25:3:21 or in smaller numbers 8:1:7 is close enough but this is for petroleum set-ups.
https://wiki.factorio.com/Oil_processing

[Warlord]

The short answer is... yes. An oil refinery makes all 3 oil products at once, and they all need to be removed from the output of the refinery in order for it to make more of anything.

As for the petroleum gas, it happens. If you are only making enough product for one machine, then it won't really split it evenly between two machines. One tends to take up all of it. Sounds like your petroleum is not producing fast enough. Possibly because the refineries are full of light/heavy. Even if you make solid fuel from light and lubricant from heavy, one of each of those chemical plants will not consume enough of those oils to match your consumption of petroleum gas.

[fractalgem]

@Lethal:
oil refineries and chemical plants have slightly different speeds.

[Lethal]

@fractalgem
Ah, I get it. It's more petroleum per second when cracking oil then straight from the refinery so it's not important to maximize production on the refinery but instead to maximize production on the oil cracking which is why you have 25 refineries so that it pumps out enough oil in one 5 second cycle to supply two 3 second cycles of the crackers. I guess dividing the numbers to pure seconds wasn't the correct way to go about it.

Thanks.

[bendezium2003]

My suggestion is to set up an overlow system that pumps excess out of the bus into a subsystem that consumes the extra petrochemicals via cracking down or crafting of solid fuel. The overflow setup prevents your petrochem bus from backing up because you have an excess of any one particular petrochemical.

[impetus_maximus]

just a suggestion. instead of posting the image URL, right click on your screenshot page and choose 'Copy Page URL'. then paste it in your post.
http://steamcommunity.com/sharedfiles/filedetails/?id=1124800853
http://steamcommunity.com/sharedfiles/filedetails/?id=1124800704

[edit] it makes it easier to open in a new window while keeping this thread open.

[Warlord]

The link you paste ought to say something along the lines of
"http://steamcommunity.com/sharedfiles/filedetails/?id=XXXXXXXXXX"

This will paste the screenshot into the forum here as a thumbnail we can see, and click on to easily view entirely.

EDIT: Man that was hard to paste without steam link-ifying it.

[impetus_maximus]

yeah Warlord. you need to use the noparse tag for that if you want the whole URL.
http://steamcommunity.com/sharedfiles/filedetails/?id=1124800853
http://steamcommunity.com/sharedfiles/filedetails/?id=1124800704

code tags don't work the way they should IMO.

[Tiger]

ow, nicee