Mto process based on meapo molecular sieves combined with an ocp process to make olefins

Mto process based on meapo molecular sieves combined with an ocp process to make olefins

  • CN 101,679,140 A
  • Filed: 03/10/2008
  • Published: 03/24/2010
  • Est. Priority Date: 03/13/2007
  • Status: Active Application
First Claim
Patent Images

1. make the method for light olefin by containing oxygen, halide or sulfur-bearing organic raw material, comprising:

  • Described oxygen, halide or the sulfur-bearing organic raw material of containing contacted first reactor effluent that comprises light olefin and heavy hydrocarbon fraction to form with the catalyzer that is made by metal tripolyphosphate aluminium (MeAPO) molecular sieve with layered crystal form under the condition of at least a portion that transforms described raw material effectively in first reactor;

    Described light olefin is separated with described heavy hydrocarbon fraction;

    Described heavy hydrocarbon fraction under being converted into the condition of light olefin, at least a portion that makes described heavy hydrocarbon fraction is effectively contacted in second reactor;

    Wherein said MeAPO has by formula H after synthetic and calcining xMe yAl zP kO 2The experience chemical constitution on anhydrous basis of expression, wherein y+z+k=

    1,

    x≤

    y,

    Y has 0.0008~

    0.4 value,Z has 0.25~

    0.67 value,K has 0.2~

    0.67 value,Described molecular sieve mainly has the platelet form, and wherein width (W) and thickness (T) satisfy;

    W/T≥

    10。

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×