Production of olefins

Details Production of olefins Production of olefins

2003-05-22

2011-12-06

Singh, Prem C (Department: 1771)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

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

C585S314000, C585S315000, C585S324000, C585S330000, C585S648000, C585S651000, C208S107000, C208S129000, C208S130000

Reexamination Certificate

active

08071833

ABSTRACT:
A process (or steam cracking a hydrocarbon feedstock containing olefins to provide increased light olefins in the steam cracked effluent, the process comprising passing a first hydrocarbon feedstock containing one or more olefins through a reactor containing a crystalline silicate to produce an intermediate effluent with an olefin content of lower molecular weight than that of the feedstock, fractionating the intermediate effluent to provide a lower carbon fraction and a higher carbon fraction, and passing the higher carbon fraction, as a second hydrocarbon feedstock, through a stream cracker to produce a steam cracked effluent.

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