Refining Processes Handbook
Filled with handy process flow diagrams, this comprehensive reference covers the technologies and operations of petroleum refineries and provides material on operating a jointly owned and operated refinery.
TABLE OF CONTENTS Refining Processes Handbook
CRUDE OIL CHANGES
The actual crude run during a month cannot be exactly the same as the participants DOP estimates, even though the joint-operating company (JOC) tries to keep the crude run as close as possible to the participants DOP.
Any delta between the actual crude run of a participant and its DOP rude run is reflected as forecaster change The crude oil delta is converted into balancing grade products by means of crude oil equivalency. The crude oil equivalency is the yields of balancing-grade products from the incremental crude run, generally determined by actual test runs on the refinery at various levels of crude throughput (Table 15 12).
Example 16 3
The actual crude run of the refinery during a month was 125,526 barrels more than the combined DOP of the participants as follows:
| CRUDE RUN | DOP, bbl | ACTUAL, bbl | DELTA, bbl |
|---|---|---|---|
| AOC | 6,090,000 | 6,215,526 | 125,526 |
| BOC | 1,200,000 | 1,200,000 | 0 |
| TOTAL REFINERY | 7,290,000 | 7,415,526 | 125,526 |
Any change in the crude run is reflected in the production of balancing grades by means of crude oil equivalency. Here refinery crude run is 243 mbpcd therefore from table 15 12, crude oil equivalency for crude run 200 259 mbpcd is used.
Thus, additional processing of 125,526 bbl crude oil results in following balancing-grade production for participant AOC:
-
I-201= ?126 bbl
-
I-210=22,971 bbl
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I-440=12,553 bbl
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I-888=41,047 bbl
-
I-961=46,947 bbl
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Loss=2,134bbl
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Total=125,526 bbl
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