There is a direct correlation among Marlim crude, the Delayed Coking Unit and PETROBRAS, owner of huge crude oil reserves in deep water reservoirs, from which the giant Marlim field stands out. Processing growing volumes of crudes with such deep-water characteristics has set challenges that the Company dealt with by fitting its refining plant facilities. These crudes generate large volumes of residues, which call for the construction of conversion units. In this specific case, the choice for the delayed coking process has a fundamental explanation: the process is profitable and adjustable to the fuel demands, parallel to the production of a petroleum green coke that fits anode grade specifications. Internationally recognized coke quality is also an indication of good operation. To complete the correlation, PETROBRAS has developed its own delayed coking technology. A combination of basic engineering, pilot plant research and industrial tests are the key for the present technological stage, keeping pace with the latest industrial developments. Today, PETROBRAS operates four Delayed Coking Units - DCU, three of which designed internally. Three new other units have already concluded their basic design and are in EPC phase.
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