公开(公告)号：US10184088B2

公开(公告)日：2019-01-22

申请号：US15275802

申请日：2016-09-26

Applicant: Lummus Technology Inc.

Inventor： Rama Rao Marri ,  Dalip Singh Soni ,  Pramod Kumar

IPC: C10G51/02 ,  B01J8/18 ,  B01J8/26 ,  B01J8/00 ,  C10G51/06 ,  C10G11/18

Abstract: A fluid catalytic cracking apparatus and process is disclosed, providing for efficient conversion of heavy hydrocarbon feeds to light olefins, aromatics, and gasoline. A countercurrent flow reactor operating in bubbling or turbulent fluidization regimes is integrated with a fluid catalytic cracking riser reactor. A heavy hydrocarbon feed is catalytically cracked to naphtha and light olefins in the riser reactor, a co-current flow reactor. To enhance the yields and selectivity to light olefins, cracked hydrocarbon products from the riser reactor, such as C4 and naphtha range hydrocarbons, may be recycled and processed in the countercurrent flow reactor. The integration of the countercurrent flow reactor with a conventional FCC riser reactor and catalyst regeneration system may overcome heat balance issues commonly associated with two-stage cracking processes, may substantially increase the overall conversion and light olefins yield, and/or may increases the capability to process heavier feedstocks.

公开(公告)号：US20170009150A1

公开(公告)日：2017-01-12

申请号：US15275802

申请日：2016-09-26

Applicant: Lummus Technology Inc.

Inventor： Rama Rao Marri ,  Dalip Singh Soni ,  Pramod Kumar

IPC: C10G51/02 ,  B01J8/00 ,  B01J8/26 ,  B01J8/18

CPC classification number: C10G51/026 ,  B01J8/0015 ,  B01J8/0055 ,  B01J8/1809 ,  B01J8/1827 ,  B01J8/26 ,  B01J2208/00769 ,  C10G11/18 ,  C10G11/182 ,  C10G11/187 ,  C10G51/06 ,  C10G2300/1044 ,  C10G2300/107 ,  C10G2300/1074 ,  C10G2300/1077 ,  C10G2300/70 ,  C10G2400/02 ,  C10G2400/04 ,  C10G2400/20 ,  C10G2400/30

Abstract: A fluid catalytic cracking apparatus and process is disclosed, providing for efficient conversion of heavy hydrocarbon feeds to light olefins, aromatics, and gasoline. A countercurrent flow reactor operating in bubbling or turbulent fluidization regimes is integrated with a fluid catalytic cracking riser reactor. A heavy hydrocarbon feed is catalytically cracked to naphtha and light olefins in the riser reactor, a co-current flow reactor. To enhance the yields and selectivity to light olefins, cracked hydrocarbon products from the riser reactor, such as C4 and naphtha range hydrocarbons, may be recycled and processed in the countercurrent flow reactor. The integration of the countercurrent flow reactor with a conventional FCC riser reactor and catalyst regeneration system may overcome heat balance issues commonly associated with two-stage cracking processes, may substantially increase the overall conversion and light olefins yield, and/or may increases the capability to process heavier feedstocks.

Abstract translation: 公开了一种流化催化裂化装置和方法，用于有效地将重质烃进料转化成轻质烯烃，芳族化合物和汽油。 在起泡或湍流流化方案中操作的逆流反应器与流化催化裂化提升反应器整合。 重质烃进料在提升管反应器，并流流动反应器中催化裂解成石脑油和轻质烯烃。 为了提高轻质烯烃的产率和选择性，来自提升管反应器（例如C4和石脑油范围烃）的裂解烃产物可以在逆流流动反应器中再循环和处理。 逆流流动反应器与常规FCC提升管反应器和催化剂再生系统的集成可以克服通常与两阶段裂解过程相关的热平衡问题，可以显着增加总转化率和轻质烯烃产率，和/或可以增加 处理较重的原料。