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公开(公告)号：US5275641A
公开(公告)日：1994-01-04
申请号：US935320
申请日：1992-08-26
CPC分类号： B04C5/04 , B01J8/0055 , B04C5/28 , C10G11/18
摘要： Accordingly, the present invention, in one embodiment, encompasses an apparatus for the fluidized catalytic cracking of a hydrocarbon feed comprising: a riser which is generally vertically positioned within a catalyst disengaging zone and which has a plurality of openings around the circumference of the riser at its discharge end. The openings in the riser have a vertical stub portion that extends tangentially outwardly from the riser and communicates with a first end of an upwardly sloping curvilinear tunnel that terminates at a second end. The second end of the tunnel opens into a tangential opening in the primary cyclone. The area of the opening of the first end of the tunnel is larger than the area of the opening of the second end of the tunnel.
摘要翻译： 因此，在一个实施方案中，本发明包括用于烃进料的流化催化裂化的装置，其包括：提升管，其通常垂直地位于催化剂分离区内，并且在提升管的周围具有多个开口 其放电结束。 提升管中的开口具有从提升管切向向外延伸的垂直短管部分，并且与在第二端终止的向上倾斜的曲线隧道的第一端连通。 隧道的第二端在主要旋风分离器中形成切向开口。 隧道第一端的开口面积大于隧道第二端开口面积。
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2.发明授权Method for maintaining heat balance in a fluidized bed catalytic cracking unit 失效在流化床催化裂化装置中保持热平衡的方法公开(公告)号：US06558531B2
公开(公告)日：2003-05-06
申请号：US09804721
申请日：2001-03-13
申请人： Todd R. Steffens , Paul K. Ladwig , George Melfi , John E. Asplin
发明人： Todd R. Steffens , Paul K. Ladwig , George Melfi , John E. Asplin
IPC分类号： C10G1100
CPC分类号： C10G11/18 , C10G11/182
摘要： The invention relates to a process for maintaining heat balance in a fluidized bed catalytic cracking unit. More specifically, the invention relates to a combustion control method capable of maintaining or restoring heat balance by conducting, under appropriate conditions, fuel and an oxygen-containing gas to a transfer line. The transfer line conducts effluent including spent catalyst and combustion products to the unit's catalyst regeneration zone.
摘要翻译： 本发明涉及一种维持流化床催化裂化装置中的热平衡的方法。 更具体地，本发明涉及一种能够通过在适当条件下将燃料和含氧气体传导到传输线来维持或恢复热平衡的燃烧控制方法。 输送管线将包括废催化剂和燃烧产物的废水排放到设备的催化剂再生区。
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公开(公告)号：US5190650A
公开(公告)日：1993-03-02
申请号：US720056
申请日：1991-06-24
CPC分类号： B04C5/04 , B01J8/0055 , B04C5/28 , C10G11/18
摘要： Accordingly, the present invention, in one embodiment, encompasses an apparatus for the fluidized catalytic cracking of a hydrocarbon feed comprising: a riser which is generally vertically positioned within a catalyst disengaging zone and which has a plurality of openings around the circumference of the riser at its discharge end. The openings in the riser have a vertical stub portion that extends tangentially outwardly from the riser and communicates with a first end of an upwardly sloping curvilinear tunnel that terminates at a second end. The second end of the tunnel opens into a tangential opening in the primary cyclone. The area of the opening of the first end of the tunnel is larger than the area of the opening of the second end of the tunnel.
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