公开(公告)号：US20150094511A1

公开(公告)日：2015-04-02

申请号：US14382477

申请日：2012-03-02

申请人： Raquel Bastianti ,  Lam Yiu Lau ,  Andrea de Rezende Pinho ,  Rosana Wasserman ,  Ivanilda Barboza do Espirito Santo

发明人： Raquel Bastianti ,  Lam Yiu Lau ,  Andrea de Rezende Pinho ,  Rosana Wasserman ,  Ivanilda Barboza do Espirito Santo

IPC分类号： C07C4/06 ,  B01J29/80

CPC分类号： C07C4/06 ,  B01J29/18 ,  B01J29/40 ,  B01J29/65 ,  B01J29/80 ,  C07C2529/85 ,  C10G11/05 ,  C10G11/18 ,  C10G2400/20

摘要： Additives for mixing into the base catalyst inventory of the fluid catalytic cracking (FCC) process units, so as to achieve a high selectivity of light olefins (ethylene and propylene), are described. Such additives comprise an FER zeolite and an MFI zeolite, the MFI zeolite preferably being zeolite ZSM-5. The mixture of the additive in a concentration greater than 2% w/w relative to the base catalyst of an FCC unit allows greater selectivity for light olefins, propylene and ethylene, while maintaining catalytic activity.

摘要翻译： 描述了用于混合到流化催化裂化（FCC）工艺单元的基础催化剂库存中的添加剂，以达到轻质烯烃（乙烯和丙烯）的高选择性。 这些添加剂包括FER沸石和MFI沸石，MFI沸石优选为沸石ZSM-5。 相对于FCC单元的碱催化剂，浓度大于2％w / w的添加剂的混合物允许对轻质烯烃，丙烯和乙烯的更高的选择性，同时保持催化活性。