MULTIPLE-STAGE CATALYST SYSTEM AND A PROCESS FOR PROPENE PRODUCTION

• Main Authors: KHOKHAR MUNIR D, SHAIKH SOHEL K, ALSHAFEI FAISAL H
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

Processes and multiple-stage catalyst systems are disclosed for producing propene by at least partially isomerizing butene in an isomerization reaction zone having an isomerization catalyst to form anisomerization reaction product, at least partially metathesizing the isomerization reaction product in a metathesis reaction zone having a metathesis catalyst to form a metathesis reaction product, and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst. The isomerization catalyst may be MgO, and the metathesis catalyst may be a mesoporous silica catalyst support impregnated with a metal oxide. The metathesis reaction zone may be downstream of the isomerization reaction zone, and the cracking reaction zone may be downstream of themetathesis reaction zone. 公开了用于生产丙烯的方法和多级催化剂系统，其通过以下来进行：在具有异构化催化剂的异构化反应区域中使丁烯至少部分地异构化，以形成异构化反应产物，在具有复分解催化剂的复分解反应区域中使所述异构化反应产物至少部分地复分解，以形成复分解反应产物，以及在具有裂化催化剂的裂化反应区域中使所述复分解反应产物至少部分地裂化。所述异构化催化剂可以是MgO，并且所述复分解催化剂可以是浸渍有金属氧化物的介孔二氧化硅催