UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Petroleum Coke: Crude Oil Residue Coked in a Delayed Coker and Calcined
Petroleum coke is the solid carbon left from the heaviest part of crude oil. A refinery distils crude oil, then distils the residue again under vacuum, heats what is still left to about 480–505 °C and lets it crack in a coke drum. The drum fills with green coke in 12 to 24 hours; it is cut out with a water jet and calcined in a rotary kiln. Calcined coke feeds synthetic graphite and carbon anodes.
The picture: our diagram of the route from crude oil to calcined coke.
Hejuru
A day per coke drum
Amabwiriza
1
1
Distil the crude oil
Distil the crude oil
Distil crude oil in an atmospheric column, slightly above atmospheric pressure. Draw off the lighter cuts, among them naphtha (boiling between about 30 and 200 °C), and keep the residue from the bottom, which boils above 370–380 °C.
Ibikoresho by'iyi ntambwe:
Peteroli mbisi1 tIbikoresho bikenewe:
Inkingi yo gutosha mu muvuduko usanzwe w'ikirere2
2
Distil the residue under vacuum
Distil the residue under vacuum
Distil that residue again at 10–40 mmHg absolute so it stays below 370–380 °C. The heavy bottoms left are the vacuum residue.
Ibikoresho bikenewe:
Inkingi yo gutosha hakoreshejwe vacuum
Pompe ikuramo umwuka3
3
Heat and fill the coke drum
Heat and fill the coke drum
Pump the vacuum residue through the coker furnace to about 480–505 °C, with steam in the tubes, into a coke drum. It cracks there: gas oil and lighter parts leave as vapour and coke builds up in the drum, which fills in 12 to 24 hours.
Ibikoresho bikenewe:
Igikoresho cyo gukora amakara ya peteroli gitinza
Amazi4
4
Quench and cut out
Quench and cut out
Switch the feed to the second drum. Steam out the full drum, fill it with water, wait several hours and drain it. Cut the coke out with a high-pressure water jet. This is green coke.
Ibikoresho bikenewe:
Igikoresho cyo gukora amakara ya peteroli gitinzaAmazi5
5
Calcine
Calcine
Calcine the green coke in a rotary kiln at about 1300 °C to drive off the remaining volatile hydrocarbons.
Ibikoresho bikenewe:
Itanura rizunguruka6
6
Coke from a tonne of residue
Coke from a tonne of residue
Gupakira ikaye ya Jupyter…
Ibikoresho
1- Umwanya
Ibikoresho bikenewe
6- 1 vendor sell this, none ship to you yetUmwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
Agateganyo
Nafita
Free
65
0
1
CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.