Method for producing ethylene through ethanol catalytic dehydration

Method for producing ethylene through ethanol catalytic dehydration

  • CN 102,649,665 B
  • Filed: 02/25/2011
  • Issued: 07/08/2015
  • Est. Priority Date: 02/25/2011
  • Status: Active Grant
First Claim
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1. catalytic dehydration of ethanol produces a method for ethene, and taking ethanol as raw material, is 200 ~ 380 DEG C in temperature of reaction, and in gauge pressure reaction pressure for 0 ~ 2MPa, reaction velocity is 0.1 ~ 8 hour -1under condition, raw material contacts with catalyst I I with catalyst I in composite bed reactor successively, generates the logistics containing ethene;

  • Wherein, catalyst I is silica alumina ratio SiO 2/ Al 2o 3be the ZSM-5 molecular sieve of 40 ~ 400, catalyst I I is silica alumina ratio SiO 2/ Al 2o 3be the ZSM-5 molecular sieve of 20 ~ 300, and the silica alumina ratio of catalyst I is greater than catalyst I I silica alumina ratio, the filling ratio of catalyst I and catalyst I I is 0.1 ~ 8;

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