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    • 4. 发明申请
    • PROCESS FOR PRODUCING OLEFINS
    • 生产油脂的方法
    • US20100274063A1
    • 2010-10-28
    • US12669269
    • 2008-07-18
    • Guoqing WangZhaobin ZhangShuo ChenLijun Zhang
    • Guoqing WangZhaobin ZhangShuo ChenLijun Zhang
    • C07C4/06
    • C10G35/09C10G11/05C10G11/18
    • The present invention discloses a process for producing olefins from petroleum saturated hydrocarbons. The process of the present invention comprises: contacting a preheated petroleum saturated hydrocarbons feedstock with a dehydrogenation catalyst in a dehydrogenation reaction zone of a reaction system to obtain a petroleum hydrocarbon stream containing unsaturated hydrocarbon compounds, in which the dehydrogenation reaction has a conversion rate of at least 20%; and contacting the obtained petroleum hydrocarbon stream containing the unsaturated hydrocarbon compounds with olefins cracking catalyst in an olefin cracking zone of the reaction system to obtain a product stream containing olefins with a reduced number of carbon atoms.
    • 本发明公开了一种从石油饱和烃生产烯烃的方法。 本发明的方法包括:使预热的石油饱和烃原料与脱氢催化剂在反应体系的脱氢反应区中接触,得到含有不饱和烃化合物的石油烃流,其中脱氢反应的转化率为 至少20%; 并将所得到的含有不饱和烃化合物的石油烃物流与烯烃裂化催化剂在反应体系的烯烃裂化区中接触,得到含有碳原子数减少的烯烃的产物流。
    • 6. 发明授权
    • Ethylene cracking furnace
    • 乙烯裂解炉
    • US08916030B2
    • 2014-12-23
    • US13124590
    • 2009-10-15
    • Xiou HeGuoqing WangChangli LiLijun ZhangJinke LiChen ShaoGuang LiYuping Guo
    • Xiou HeGuoqing WangChangli LiLijun ZhangJinke LiChen ShaoGuang LiYuping Guo
    • C10G9/14B01J8/00C07C4/02
    • C07C4/02C10G2400/20
    • An ethylene cracking furnace comprising a high pressure steam drum (1), a convection section (2), a radiant section (3), multiple groups of radiant coils (4) arranged vertically in the firebox of radiant section, burners (5) and transfer line exchangers (6), each radiant coil comprising a first-pass tube (7), a second-pass tube (8) and a connection member (9); feedstocks being introduced into an inlet end of the first-pass tube and outflow from an outlet end of the second-pass tube, said first-pass tube (7) and said second-pass tube (8) are non-split coils, and the centerlines of the respective radiant tubes (7, 8) are within a common plane; said connection member (9) is a tridimensional structural member comprising an inlet bending tube (10), a return bending tube (11) and an outlet bending tube (12); said inlet bending tubes (10) and said outlet bending tubes (12) are arranged at two sides of the plane containing the centerlines of said first-pass tubes (7) and said second-pass tubes (8), respectively; the projections of the respective connection members (9) in a side view are the same curve line that is symmetrical, continuous and closed; the inner diameters of said radiant coils (7, 8) is varied at least once along the length of the tubes.
    • 一种乙烯裂解炉,包括高压蒸汽桶(1),对流部分(2),辐射部分(3),在辐射部分的火箱中垂直布置的多组辐射线圈(4),燃烧器(5)和 传输线交换器(6),每个辐射线圈包括第一通道管(7),第二通管(8)和连接构件(9); 原料被引入第一管的入口端并从第二通管的出口端流出,所述第一通管(7)和所述第二通管(8)是非分裂线圈,并且 各辐射管(7,8)的中心线在公共平面内; 所述连接构件(9)是包括入口弯曲管(10),返回弯管(11)和出口弯管(12)的立体结构构件; 所述入口弯管(10)和出口弯管(12)分别布置在包含所述第一通管(7)和所述第二通管(8)的中心线的平面的两侧; 各连接构件(9)的侧视图的突起是对称的,连续的和闭合的相同的曲线; 所述辐射线圈(7,8)的内径沿着管的长度改变至少一次。