Back to results
US 9,809,508 B2Granted
Method and apparatus for converting hydrocarbons into olefins
AssigneeExxonMobil Chemical Patents Inc.
InventorsPaul F. Keusenkothen, Frank Hershkowitz
Life of this patent
Estimating the term…
Abstract
An apparatus and method are provided for processing hydrocarbon feeds. The method may pass a pyrolysis feed to a thermal pyrolysis reactor and expose at least a portion of the pyrolysis feed to high-severity operating conditions in a thermal pyrolysis reactor, wherein the thermal pyrolysis reactor is operated at operating conditions that include pressure ≧36 psig and provide a reactor product that has a C3+ to C2 unsaturate weight ratio ≦0.5.
Claims16
A hydrocarbon conversion method comprising:
- exposing a pyrolysis feed comprising hydrocarbons and an added diluent in a regenerative reverse-flow thermal pyrolysis reactor to thermal pyrolysis conditions at a peak pyrolysis gas temperature ≧1200.0° C., for a residence time in the range of 4 milliseconds to 50 milliseconds, and at a pressure ≧44 psig to produce a reactor product comprising C2 unsaturates and having a C3+ to C2 unsaturates weight ratio ≦0.5, wherein (i) the added diluent is added in an amount of more than zero but up to 10 wt % based on the combined weight of the hydrocarbons and the added diluent and (ii) the added diluent is one or more of H2O, CO2, and H2S.
Dependencies are inferred from the claim text.