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    • 1. 发明授权
    • Method for the hydrogenation treatment of a heavy hydrocarbon oil
    • 氢化处理重质烃油的方法
    • US4622127A
    • 1986-11-11
    • US719365
    • 1985-04-03
    • Yuji NoguchiYuzuru Itoh
    • Yuji NoguchiYuzuru Itoh
    • C10G65/10B01J29/00B01J35/10C10G47/16C10G65/02C10G65/12
    • C10G65/12C10G47/16C10G65/02
    • A method for the two-step catalytic hydrogenation treatment of a heavy hydrocarbon oil which comprisesfirst contacting the heavy hydrocarbon oil with a first solid catalyst comprising a metal component having catalytic activity for hydrogenation supported on a zeolite having catalytic activity for cracking a hydrocarbon, said zeolite having a (i) pore size distribution curve with two peaks, one peak in the range of 5 to 50 nm pore diameter and the other peak in the range of 50 to 1000 nm pore diameter and (ii) the volume of the pores having a diameter of 100 nm or larger is at least 0.05 ml/g; andthen contacting the heavy hydrocarbon oil which had been contacted with said first catalyst, with a second catalyst, said second catalyst having hydrogenation activity and which is different from said first catalyst.
    • 一种用于重质烃油的两步催化氢化处理的方法,其包括首先使重烃油与第一固体催化剂接触,所述第一固体催化剂包含具有催化活性的催化活性的负载在具有用于裂解烃的催化活性的沸石上的金属组分, 沸石具有(i)具有两个峰的孔径分布曲线,一个峰在5至50nm孔径范围内,另一个峰在50至1000nm孔径范围内,和(ii)具有 100nm以上的直径为0.05ml / g以上; 然后将与所述第一催化剂接触的重质烃油与第二催化剂接触,所述第二催化剂具有氢化活性并且不同于所述第一催化剂。
    • 2. 发明授权
    • Brake mechanism for tractors
    • 拖拉机制动机构
    • US4178044A
    • 1979-12-11
    • US924374
    • 1978-07-13
    • Yuzuru ItohMasaaki IchimuraMasaru Uenoyama
    • Yuzuru ItohMasaaki IchimuraMasaru Uenoyama
    • B60T15/46
    • B60T15/46
    • A brake mechanism for a tractor comprising an air tank containing compressed air, a brake valve connected to said air tank, a brake pedal operatively connected to said brake valve, a pair of solenoid operated selector valves, a pair of throttle valves each being connected to said one of the selector valves, respectively, a pair of double check valves each being connected to said one of the selector valves at one end thereof, the other end of which being connected to said one of the throttle valves, respectively, two pairs of brake chambers each being connected to one of said double check valves, respectively, and a switch connected to said selector valves.
    • 一种用于拖拉机的制动机构,包括一个包含压缩空气的空气罐,连接到所述空气罐的制动阀,与所述制动阀可操作地连接的制动踏板,一对电磁操作的选择阀,一对节流阀连接到 所述选择阀中的一个分别是一对双止回阀,每个双止回阀在其一端连接到所述一个选择阀,其另一端分别连接到所述一个节流阀,两对 分别与所述双止回阀中的一个连接的制动室和连接到所述选择阀的开关。