Improved process for producing lower olefins from...

Details Improved process for producing lower olefins from... Improved process for producing lower olefins from...

C - Chemistry, Metallurgy

10

G

C10G 9/00 (2006.01) C10G 9/20 (2006.01) C10G 51/02 (2006.01)

Patent

CA 2696234

A process for making lower olefins from a wide boiling range hydrocarbon feed by use of a combination of one or more vapor/liquid separation devices (40), and then pyrolytically cracking the vapor phase in separate sets of pyrolysis radiant tubes (61), thereby producing a higher level of lower olefin product. The particular set of radiant pyrolysis coils (611) associated with the particular feed fraction are matched to achieve specific target cracking severity in order to enhance the overall production of C2 and C3 mono-olefins or optimize yields for overall improved profitability.

L'invention concerne un procédé de préparation d'oléfines inférieures à partir d'une alimentation hydrocarbure à large gamme d'ébullition. Le procédé consiste à utiliser une combinaison d'un ou plusieurs dispositifs de séparation vapeur/liquide; à craquer pyrolytiquement la phase vapeur en jeux séparés de tubes rayonnant de pyrolyse, ce qui produit un taux plus élevé de produit oléfine inférieure.

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