Composition of Coke
The table below illustrates the wide range of compositions for raw petroleum coke (referred to as green coke) produced in a delayed coker and the corresponding compositions after the green coke has been calcined at 2375 °F (1302 °C):
Component | Green coke as produced |
Coke calcined at 2375 °F |
---|---|---|
Fixed carbon, wt % | 80 − 95 | 98.0 − 99.5 |
Hydrogen, wt % | 3.0 − 4.5 | 0.1 |
Nitrogen, wt % | 0.1 − 0.5 | |
Sulfur, wt % | 0.2 − 6.0 | |
Volatile matter, wt % | 5 − 15 | 0.2 − 0.8 |
Moisture, wt % | 0.5 − 10 | 0.1 |
Ash, wt % | 0.1 − 1.0 | 0.02 − 0.7 |
Density, g/cc | 1.2 − 1.6 | 1.9 − 2.1 |
Metals, ppm weight: | ||
Aluminum | 15 − 100 | 15 − 100 |
Boron | 0.1 − 15 | 0.1 − 15 |
Calcium | 25 − 500 | 25 − 500 |
Chromium | 5 − 50 | 5 − 50 |
Cobalt | 10 − 60 | 10 − 60 |
Iron | 50 − 5000 | 50 − 5000 |
Manganese | 2 − 100 | 2 − 100 |
Magnesium | 10 − 250 | 10 − 250 |
Molybdenum | 10 − 20 | 10 − 20 |
Nickel | 10 − 500 | 10 − 500 |
Potassium | 20 − 50 | 20 − 50 |
Silicon | 50 − 600 | 50 − 600 |
Sodium | 40 − 70 | 40 − 70 |
Titanium | 2 − 60 | 2 − 60 |
Vanadium | 5 − 500 | 5 − 500 |
Read more about this topic: Delayed Coker
Famous quotes containing the words composition of, composition and/or coke:
“Viewed freely, the English language is the accretion and growth of every dialect, race, and range of time, and is both the free and compacted composition of all.”
—Walt Whitman (18191892)
“If I dont write to empty my mind, I go mad. As to that regular, uninterrupted love of writing ... I do not understand it. I feel it as a torture, which I must get rid of, but never as a pleasure. On the contrary, I think composition a great pain.”
—George Gordon Noel Byron (17881824)
“One of the oddest episodes I remember was an occasion in which [Clarence] Thomas was drinking a Coke in his office, he got up from the table, at which we were working, went over to his desk to get the Coke, looked at the can and asked, Who has put pubic hair on my coke?”
—Anita Hill (b. 1956)