Method for hydrocracking heavy fraction oil

Details Method for hydrocracking heavy fraction oil Method for hydrocracking heavy fraction oil

1988-01-20

1989-08-15

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 56, 208108, 208112, 208145, 208251H, 208100, C10G 6512

Patent

active

048571687

ABSTRACT:
A method for hydrocracking a heavy fraction oil characterized by cracking a heavy fraction oil in the presence of a hydrogen donating solvent and hydrogen gas and circulating a fraction having a specific boiling range as the circulating solvent through the cracking reactor whereby the formation of carbonaceous substances is greatly inhibited, the supply of a makeup hydrogen donating solvent is disposed with and the concentration of tetralin in the circulating solvent is maintained at a fixed or higher level.

REFERENCES:
patent: 4293404 (1981-10-01), Farcasiu et al.
patent: 4465587 (1984-08-01), Garg et al.
patent: 4592830 (1986-06-01), Howell et al.
patent: 4640762 (1987-02-01), Woods et al.
patent: 4640765 (1987-02-01), Kubu
patent: 4661241 (1987-04-01), Dabkowski et al.

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