RESID CATALYTIC CRACKER AND CATALYST FOR INCREASED PROPYLENE YIELD
    4.
    发明申请
    RESID CATALYTIC CRACKER AND CATALYST FOR INCREASED PROPYLENE YIELD 审中-公开
    残留催化裂化器和催化剂增加丙烯含量

    公开(公告)号:US20130131412A1

    公开(公告)日:2013-05-23

    申请号:US13300091

    申请日:2011-11-18

    IPC分类号: C07C4/06 B01J35/02 B01J29/04

    摘要: A process and catalyst for improving the yield of propylene from residual oil feedstock includes obtaining residual oil feedstock from a vacuum distillation tower. The residual oil feedstock has contaminant metals such as sodium or vanadium. The residual oil feedstock is contacted with a cracking catalyst in a catalytic cracking zone to make products. A ZSM-5 zeolite, a binder, a filler and a metal trap are components of the cracking catalyst. The metal trap has a trapping agent in an outer shell of the catalyst, a trapping agent in the ZSM-5 binder or combinations thereof. After reacting, the cracking catalyst is separated from the products in a separator zone, then regenerated by combusting coke deposited on a surface of the cracking catalyst in an oxygen-containing environment. The cracking catalyst is returned to the catalytic cracking zone. The catalyst with the metal trap is also disclosed.

    摘要翻译: 用于从残油原料提高丙烯产率的方法和催化剂包括从真空蒸馏塔获得残油原料。 残余油原料具有诸如钠或钒的污染金属。 残余油原料与催化裂化区中的裂化催化剂接触以制备产物。 ZSM-5沸石,粘合剂,填料和金属捕集剂是裂化催化剂的组分。 金属捕集器在催化剂的外壳中具有捕获剂,ZSM-5粘合剂中的捕集剂或其组合。 反应后,将裂化催化剂与分离器区域中的产物分离,然后通过在含氧环境中燃烧沉积在裂化催化剂的表面上的焦炭再生。 裂化催化剂返回到催化裂化区。 还公开了具有金属阱的催化剂。