公开(公告)号：US5391288A

公开(公告)日：1995-02-21

申请号：US74572

申请日：1993-06-10

申请人： Nick A. Collins ,  Paul P. Durand ,  David L. Fletcher ,  Mohsen N. Harandi ,  Edward F. Kondis ,  Hartley Owen ,  Michael S. Sarli ,  Stuart S. Shih

发明人： Nick A. Collins ,  Paul P. Durand ,  David L. Fletcher ,  Mohsen N. Harandi ,  Edward F. Kondis ,  Hartley Owen ,  Michael S. Sarli ,  Stuart S. Shih

IPC分类号： C10G69/08 ,  C10G45/00 ,  C10G69/00

CPC分类号： C10G69/08

摘要： Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha and benzene-rich fraction by hydrodesulfurization in a first reaction zone and treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 in a second reaction zone to reduce the octane loss which takes place as a result of the hydrodesulfurization. The benzene-rich fraction can be cofed to the first reaction zone or the second reaction zone. The benzene-rich fraction is preferably a heart-cut reformate.

摘要翻译： 相对高辛烷值的低硫汽油通过在第一反应区中的加氢脱硫从催化裂解的含硫石脑油和富含苯的馏分中生产，并通过酸性催化剂，优选中等孔径的沸石如ZSM-5在 第二反应区，以减少由于加氢脱硫而发生的辛烷值损失。 富含苯的级分可以与第一反应区或第二反应区共同合成。 富含苯的馏分优选是心切的重整产物。

公开(公告)号：US5599439A

公开(公告)日：1997-02-04

申请号：US322466

申请日：1994-10-14

申请人： Nick A. Collins ,  Mohsen N. Harandi ,  Edward F. Kondis ,  Hartley Owen

发明人： Nick A. Collins ,  Mohsen N. Harandi ,  Edward F. Kondis ,  Hartley Owen

IPC分类号： C10G69/08 ,  C10G45/00 ,  C10G69/00

CPC分类号： C10G69/08

摘要： A low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by octane enhancing treatment in a fluidized bed catalytic process, in the presence of an aromatics-rich feedstream. The process converts the hydrodesulfurized intermediate and the aromatics-rich feedstream to a gasoline boiling range fraction of high octane number. The fluidized bed catalytic process is carried out over zeolite catalyst particles in a turbulent reactor bed at a temperature of about 600.degree. to 800.degree. F. (316.degree. to 427.degree. C.) and pressure of about 100 to 250 psig (790 to 825 kPa. The catalyst has an apparent particle density of about 0.9 to 1.6 g/cm.sup.3 and a size range of about 1 to 150 microns, and average catalyst particle size of about 20 to 100 microns containing about 10 to 25 weight percent of fine particles having a particle size less than 32 microns. The feed vapor is passed upwardly through the fluidized catalyst bed under turbulent flow conditions; turbulent fluidized bed conditions are maintained through the reactor bed between transition velocity and transport velocity at a superficial fluid velocity of about 0.3 to 2 meters per second. Treatment in the fluidized bed catalytic process restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha.

摘要翻译： 通过加氢脱硫，然后在富含芳烃的进料流存在下，在流化床催化方法中进行辛烷值增强处理，由催化裂解的含硫石脑油产生相对高辛烷值的低硫汽油。 该方法将加氢脱硫中间体和富含芳烃的进料流转化为高辛烷值的汽油沸程。 流化床催化过程在湍流反应器床中在沸点催化剂颗粒上进行，温度为约600至800°F（316至427℃），压力为约100至250psig（790至825 催化剂具有约0.9至1.6g / cm 3的表观颗粒密度和约1至150微米的尺寸范围，并且约20至100微米的平均催化剂颗粒尺寸含有约10至25重量％的具有 进料蒸气在湍流条件下向上通过流化催化剂床;湍流流化床条件通过反应器床保持在过渡速度和输送速度之间，表面流体速度约为0.3至2 流化床催化过程中的处理恢复了由于氢化处理而发生的辛烷值损失，导致低硫汽油产物与 辛烷值与进料石脑油相当。