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0--l>J

Ozum, Baki ; Speight, James G.

Petroleum Refining Processes, 2001, p.633-654

CRC Press

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  • Título:
    0--l>J
  • Autor: Ozum, Baki ; Speight, James G.
  • É parte de: Petroleum Refining Processes, 2001, p.633-654
  • Descrição: The prepared naphtha feed is heated to 455-540oC (850-1 and passed into a series of three catalyst cases under a pressure of 200-1000 (1379-6895 kPa). Further heat is added to the naphtha between each of the catalyst cases in the series, The material from the llnal case is fractionated into hydrogen-rich gas and reformates, The catalyst is composed of in. (3,5 mm) pellets of alumina containing chlorine and about 0,5% platinum, Each pound of catalyst reforms up to 100 bbl of naphtha before losing its 59,0 92-1l2°C; 197-233°F 123 49 850 340 activity. It is possible to regenerate the catalyst, but it is more usual to replace the spent with new The powerjimning process (Table l (Fig. 19.20) is a cyclical or regenerative process that is based on frequent regeneration by carbon burn-off and permits continuous operation. Reforming takes place in four or five reactors, and regeneration is carried out in a swing reactor. Thus the plant need not be shut down to regenerate a catalyst reactor. The cyclical process ensures a continuous supply of hydrogen gas for hydrorcfining operations and tends to produce a greater yield of higher octane refonnate. The choice between the semiregenerative process and the cyclical process depends on the size of required, type of feedstock available, and the octane number needed in the product.
  • Editor: CRC Press
  • Idioma: Inglês
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