High pressure drop endothermic process

Details High pressure drop endothermic process High pressure drop endothermic process

1994-12-13

1996-02-06

Cross, E. Rollins

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By dehydrogenation

585310, 585312, 585317, 585318, 585319, 585322, 585324, 585400, 585407, 585417, 585444, 585445, 585654, 585660, 585661, 208 62, 208 63, 208 64, 208 65, C07C 5333, C07C 5327, C10G 6500

Patent

active

054897246

ABSTRACT:
Aliphatic feeds are converted to olefins and/or aromatics in a multi pressure reactor system. A high pressure first stage reactor generates much or all of the hydrogen needed to reduce catalyst coking in lower pressure downstream reactors. High pressure operation protects catalyst stability in the first reactor, while produced hydrogen helps protect downstream catalyst. Low pressure downstream operation improves yields.

REFERENCES:
patent: 4069135 (1978-01-01), Giuliani
patent: 4069136 (1978-06-01), Peer et al.
patent: 4069137 (1978-01-01), Greenwood
patent: 4935566 (1990-06-01), Dessau et al.
patent: 4990710 (1991-02-01), Dessau et al.

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