Multi-stage hydroprocessing in a single reaction vessel

Details Multi-stage hydroprocessing in a single reaction vessel Multi-stage hydroprocessing in a single reaction vessel

1996-12-31

1998-01-06

Therkorn, Ernest G.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 58, 208210, 208254H, 95232, 95235, C10G 5102

Patent

active

057050520

ABSTRACT:
A process for hydroprocessing liquid petroleum and chemical streams in a single reaction vessel containing two or more hydroprocessing reaction stages. The liquid product from the first reaction stage is stripped of H.sub.2 S, NH.sub.3 and other dissolved gases, then sent to the next downstream reaction stage. The product from the downstream reaction stage is also stripped of dissolved gases and sent to the next downstream reaction stage until the last reaction stage, the liquid product of which is stripped of dissolved gases and collected or passed on for further processing. The flow of treat gas is in a direction opposite the direction in which the reaction stages are staged for the flow of liquid.

REFERENCES:
patent: 4180453 (1979-12-01), Franck
patent: 4251347 (1981-02-01), Rausch
patent: 4619757 (1986-10-01), Zimmerman
patent: 5183556 (1993-02-01), Reilly
patent: 5294327 (1994-03-01), Everett
patent: 5582711 (1996-12-01), Ellis

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