PROCESS FOR CONVERSION OF PARAFFINIC FEEDSTOCK
    4.
    发明申请
    PROCESS FOR CONVERSION OF PARAFFINIC FEEDSTOCK 有权
    分离饲料转化过程

    公开(公告)号:US20110139678A1

    公开(公告)日:2011-06-16

    申请号:US12952986

    申请日:2010-11-23

    IPC分类号: C10G69/02 C10G49/22

    摘要: The present invention provides a process for the conversion of a paraffinic feedstock that comprises at least 50 wt % of compounds boiling above 370° C. and which has a paraffin content of at least 60 wt %, an aromatics content of below 1 wt %, a naphthenic content below 2 wt % a nitrogen content of below 0.1 wt %, and a sulphur content of below 0.1 wt %, which process comprises the steps of: (a) providing the feedstock to a reaction zone, where it is contacted with hydrogen at a temperature in the range of 175 to 400° C. and a pressure in the range of 20 to 100 bar in the presence of a catalyst comprising 0.005 to 5.0 wt % of a Group 8 noble metal on a carrier, the carrier comprising 0.1-15 wt % of a zeolite beta and at least 40 wt % of an amorphous silica-alumina, calculated on the weight of the catalyst, said zeolite beta having a silica:alumina molar ratio of at least 50, and said amorphous silica-alumina having an alumina content, calculated as Al2O3, of 5-70 wt %; (b) withdrawing the effluent from the reaction zone through an outlet; (c) subjecting the effluent from the reaction zone to a fractionation step to form at least a heavy fraction, an intermediate fraction, and a light fraction; and (d) providing at least part of the heavy fraction to the inlet of the reaction zone.

    摘要翻译: 本发明提供了一种转化石蜡原料的方法,该方法包括至少50重量%的沸点高于370℃并具有至少60重量%的链烷烃含量,低于1重量%的芳烃含量的化合物, 氮含量低于0.1重量%的环烷烃含量和低于0.1重量%的硫含量,该方法包括以下步骤:(a)将原料提供到与氢接触的反应区 在175至400℃范围内的温度和20至100巴范围内的压力下,在载体上含有0.005-5.0重量%的第8族贵金属的催化剂存在下,该载体包含0.1 -15重量%的β沸石和至少40重量%的无定形二氧化硅 - 氧化铝,以催化剂的重量计,所述沸石β的二氧化硅:氧化铝摩尔比为至少50,所述无定形二氧化硅 - 氧化铝 氧化铝含量按Al2O3计算为5-70重量%; (b)通过出口取出反应区的流出物; (c)使来自反应区的流出物进行分馏步骤,以形成至少重馏分,中间馏分和轻馏分; 和(d)将至少部分重馏分提供到反应区的入口。

    Pressure regulator
    7.
    发明授权
    Pressure regulator 失效
    压力调节器

    公开(公告)号:US06789559B2

    公开(公告)日:2004-09-14

    申请号:US10177291

    申请日:2002-06-21

    IPC分类号: G05D1610

    摘要: A fluid pressure regulator is provided having a housing with an inlet and outlet for fluid, a valve located movably inside the housing and provided with a fluid transport member to allow passage of fluid from the inlet to the outlet. The regulator also has a pressure setting member and a space defined by one end of the valve and an end wall of the housing. The valve is moveable relative to the housing in response to a change in pressure within the space between a first position which at least partially aligns the fluid transport member with each of the inlet and the outlet and a second position in which there is no alignment of the fluid transport member with at least one of the inlet and the outlet. A passage is provided in open communication with the space and one of the inlet, the outlet, and the transport member. Methods of using the pressure regulator are also provided.

    摘要翻译: 提供一种流体压力调节器,其具有壳体,其具有用于流体的入口和出口,阀可移动地定位在壳体内部并且设置有流体输送构件以允许流体从入口通向出口。 调节器还具有压力设定构件和由阀的一端和壳体的端壁限定的空间。 响应于在至少部分地使流体输送构件与入口和出口中的每一个对准的第一位置之间的空间内的压力变化,阀可相对于壳体移动,在第二位置中, 流体输送构件具有入口和出口中的至少一个。 提供与空间和入口,出口和运输构件中的一个开放连通的通道。 还提供了使用压力调节器的方法。