Method for preparing propylene and aromatic hydrocarbon by using C4 above mixed hydrocarbon containing alkene

Method for preparing propylene and aromatic hydrocarbon by using C4 above mixed hydrocarbon containing alkene

  • CN 102,485,706 A
  • Filed: 01/27/2011
  • Published: 06/06/2012
  • Est. Priority Date: 12/03/2010
  • Status: Active Application
First Claim
Patent Images

1. C who adopts fluidized-bed process will contain alkene 4Above mixed feedstocks of hydrocarbons is converted into the method for propylene and aromatic hydrocarbons, it is characterized in that:

  • in fluidized-bed reactor, will contain the C of the alkene of 20 weight %-100 weight % 4Above mixed feedstocks of hydrocarbons with contain SiO 2/ Al 2O 3Mol ratio is the catalyzer contact of the ZSM-5 molecular sieve of 20-50, and the mean residence time of wherein said catalyzer in reactor drum is 5 seconds-100 seconds, and reaction contact time is 0.2 second-5 seconds, thereby obtains containing propylene and C 6-C 9The elute of aromatic hydrocarbons principal product and ethylene by-product thing, wherein propylene is counted 30 weight %-38 weight %, C with total olefin in the raw material 6-C 9The weight ratio of aromatic hydrocarbons/propylene is 0.25-0.5.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×