Combined method for producing low-carbon olefin

Combined method for producing low-carbon olefin

  • CN 103,121,894 A
  • Filed: 11/18/2011
  • Published: 05/29/2013
  • Est. Priority Date: 11/18/2011
  • Status: Active Application
First Claim
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1. combined method of producing low-carbon alkene comprises the following steps:

  • A) the aliphatic hydrocarbon raw material of fulvene enters the first reactor, contacts with a ZSM molecular sieve catalyst, generates the first strand of effluent that is rich in ethene and propylene;

    B) the aliphatic hydrocarbon raw material of poor alkene enters the second reactor, contacts with the 2nd ZSM molecular sieve catalyst, produces the second strand of effluent that is rich in ethene and propylene;

    C) enter the separation and purification system after two strands of effluents merge, separate obtaining ethene, propylene product, unreacting material and C4~

    C6 cut circulation enters the second reactor;

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