Method and apparatus for cooling a cracked gas stream

Details Method and apparatus for cooling a cracked gas stream Method and apparatus for cooling a cracked gas stream

C - Chemistry, Metallurgy

07

C

196/171

C07C 4/00 (2006.01) C07C 11/02 (2006.01) C10G 9/00 (2006.01) F28C 3/06 (2006.01)

Patent

CA 1183099

ABSTRACT OF THE DISCLOSURE The invention relates to quenching a cracked hydrocarbon gas by passing a cracked gas stream axially through a pipe and injecting a liquid coolant into said pipe through a plurality of circumferentially arranged slots in a swirling manner, the weight ratio of the flow rate of the coolant to the flow rate of the gas stream being in the range of about 2 to about 15 whereby a sufficient amount of the coolant is swept into the gas stream to effectively cool the same. Suitable apparatus comprises a quench pipe formed of two substantially abutting sections, the downstream section being grooved to form with the upstream section the said slots. Preferably the upstream section has an internal circumferentially arranged deflector lip overhanging the slots.

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