Process for the production of ethylene by non-catalytic oxidativ

Details Process for the production of ethylene by non-catalytic oxidativ Process for the production of ethylene by non-catalytic oxidativ

1997-09-18

1998-06-09

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

585648, 585621, 585910, C07C 404

Patent

active

057637253

ABSTRACT:
An improved process for the production of ethylene by non-catalytic oxidative cracking of ethane or ethane rich C.sub.2 -C.sub.4 paraffins with high conversion, selectivity and productivity, operating in a most energy efficient and safe manner requiring little or no external energy, in an empty tubular reactor, wherein the exothermic oxidative conversion of ethane or ethane rich C.sub.2 -C.sub.4 paraffins is coupled with the endothermic hydrocarbon cracking reactions by carrying out both the exothermic and endothermic reactions simultaneously in the reactor so that the heat produced in the exothermic reactions is used instantly in the endothermic reactions and thereby making the overall process mildly exothermic, near thermo-neutral or mildly endothermic, which comprises passing a preheated gaseous feed comprising of ethane or ethane rich C.sub.2 -C.sub.4 paraffins, oxygen and steam through an empty tubular reactor operated at the effective temperature, pressure, space velocity and hydrocarbon/O.sub.2 and hydrocarbon/steam mole ratios in the feed, is provided.

REFERENCES:
patent: 4172857 (1979-10-01), Pavilon
patent: 4426278 (1984-01-01), Kosters
patent: 4599478 (1986-07-01), Kamisaka et al.
patent: 5306845 (1994-04-01), Choudhary et al.

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