Pyrolysis tube and pyrolysis method for using the same

Details Pyrolysis tube and pyrolysis method for using the same Pyrolysis tube and pyrolysis method for using the same

2007-01-30

2007-01-30

Caldarola, Glenn (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S106000, C208S132000, C138S037000, C138S038000, C165S177000, C422S198000, C422S224000, C422S225000, C422S229000, C585S648000, C585S921000, C585S922000

Reexamination Certificate

active

10275001

ABSTRACT:
The present invention provides a pyrolysis tube for enhancing the yield of olefins and reducing a coking tendency in steam cracking of hydrocarbons. According to the present invention, the pyrolysis tube is characterized in that a plurality of mixing blades made by twisting two ends of a plate in opposite directions are included therein. The yield of ethylene is thereby improved and the coking tendency is reduced by mixing a fluid flow, improving a heat transfer rate and shortening a residence time of the reactants therein.

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