Use of pendulum viscometer in fluid-bed reaction.
    31.
    发明公开
    Use of pendulum viscometer in fluid-bed reaction. 失效
    使用在流化床反应钟摆粘度计。

    公开(公告)号:EP0019625A4

    公开(公告)日:1981-01-28

    申请号:EP79901291

    申请日:1980-04-22

    申请人: GOODRICH CO B F

    摘要: Method for using a pendulum viscometer having damped torsional oscillations, in a laboratory catalytic fluid-bed reactor, to monitor a propensity to stick which is exhibited by certain supported catalysts. A fluid-bed of such catalysts has been found to become suddenly more stikky just before a point at which a change in pressure drop across the fluid-bed can be measured due to a process "upset". At this point ("the inversion point"), the upset is usually irremediable. The method includes correlating data on catalyst stickiness from a laboratory reactor operating at atmospheric pressure, with an expected level of catalyst stickiness in a commercial reactor operating at elevated pressure. A pendulum viscometer and related auxiliary apparatus is disclosed for magnetically and electrically measuring and recording the rate at which the pendulum's torsional oscillations are damped. Frequent measurements are made during normal operation of the fluid-bed to determine its stickiness (as evidenced by the rate at which the pendulum's torsional oscillations are damped) relative to the stickiness at the inversion point. Operation of the fluid-bed under conditions for which measured rates of damping are predeterminedly lower than the rate near the inversion point, assures operation of the fluid-bed reactor at maximum efficiency.

    ANLAGE UND VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG EINES FLÜSSIGKEITSGEMISCHES
    35.
    发明公开
    ANLAGE UND VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG EINES FLÜSSIGKEITSGEMISCHES 有权
    系统和方法的液体混合物连续生产

    公开(公告)号:EP2446336A1

    公开(公告)日:2012-05-02

    申请号:EP09775729.8

    申请日:2009-06-24

    IPC分类号: G05D11/13

    摘要: The invention relates to a system (30) for continuously producing a liquid product (P) comprising at least two liquid components (k1, k2) that can be pumped, wherein the system comprises two storage tanks (1a, 1b) for each component (k1, k2), two mass-flow control circuits (2a, 2b) for the storage tanks (1a, 1b) for establishing a target mass flow of the component (k1, k2), a first line (9a) into which the components of the liquid product (P) are fed, a second line (9b) for feeding in carbon dioxide, and a filling tank (1c), wherein the first line (9a) feeds the liquid product (P) mixed with carbon dioxide into the filling tank (1c), wherein the storage tanks (1a, 1b) and the filling tank (1c) are designed as pressure vessels and are interconnected by means of at least one pressure equalization line (1) for establishing a pressure equalization between the storage tanks (1a, 1b) and the filling tank (1c).

    REFINER CONTROL METHOD AND SYSTEM
    36.
    发明公开
    REFINER CONTROL METHOD AND SYSTEM 审中-公开
    控制方法和系统REFINER

    公开(公告)号:EP1264042A2

    公开(公告)日:2002-12-11

    申请号:EP01918497.7

    申请日:2001-03-08

    IPC分类号: D21D1/00

    摘要: A system and method for monitoring and controlling operation of a disk refiner (32). The method regulates operation in response to a process variable (242) preferably in relation to a setpoint (256). The variable can be temperature, pressure, and/or stock consistency, refiner energy, or a variable based thereon. Volumetric flow rate of stock and/or the flow rate of dilution water can be regulated. Where temperature is used, it preferably is a temperature inside the refiner or adjacent the inlet or outlet. Where pressure is used, it preferably is a pressure inside the refiner or adjacent the refiner inlet (114a, 114b) or outlet. Stock consistency can be determined using a sensor (70) upstream or downstream of the refiner or using a sensed parameter in the refiner.

    METHOD AND APPARATUS FOR REAL TIME GAS ANALYSIS
    37.
    发明公开
    METHOD AND APPARATUS FOR REAL TIME GAS ANALYSIS 审中-公开
    方法和设备进行实时气体分析

    公开(公告)号:EP1005632A2

    公开(公告)日:2000-06-07

    申请号:EP98940805.9

    申请日:1998-08-18

    申请人: Metasensors, Inc.

    IPC分类号: G01N1/00

    摘要: A method and apparatus for real time gas analysis involving determining individual concentrations of fluid constituents in a mixture of known constituents by measuring properties of such mixture via sensor array and solving a set of equations relating the individual gas concentrations to the measured properties of the mixture, for the unknown individual gas concentrations or identities. The individual concentrations of four gases in a mixture are determined by: passing the mixture through a flowmeter (65), capillary (71), orifice (72) or sonic oscillator (76); transducing temperature (69), pressure (73, 74) and acoustic frequency measurements taken from the sensors; determining density (72), viscosity (71) and specific heat (76) of the mixture; forming three equations which respectively relate these three properties to individual gas concentrations; then solving the three equations under a condition requiring the sum of the concentrations to equal unity for the four unknown individual gas concentrations. A single oscillator can serve as both a sensor (flowmeter, acoustic velocimeter) and orifice.

    Continuous production of multi-component slurry
    38.
    发明公开
    Continuous production of multi-component slurry 失效
    Kustuierliche Herstellung eines Schlammes mit mehreren Komponenten。

    公开(公告)号:EP0627287A1

    公开(公告)日:1994-12-07

    申请号:EP94303972.7

    申请日:1994-06-02

    IPC分类号: B28C7/02

    摘要: A method of controlling a continuous multi-component slurrying process at an oil or gas well comprises continuously flowing substances for creating a slurry in response to a slurry flow rate factor and continuously flowing another substance for the slurry in response to a flow rate of at least a predetermined one of the other substances or the slurry itself. The method can include density control, slurry (tub) level control, and a combination of such controls. The method can operate in either closed loop or open loop manner, and control can be effected with either of two types of control signals depending on whether the controlled device is an integrating or non-integrating type. The method can also provide for bumpless transition between manual and automatic control.

    摘要翻译: 控制在油井或气井的连续多组分浆化过程的方法包括响应于浆料流速因子连续流动产生浆料的物质,并响应于至少的流速连续地流动用于浆料的另一物质 预定的一种其它物质或浆料本身。 该方法可以包括密度控制,浆液(桶)水平控制以及这些控制的组合。 该方法可以以闭环或开环方式操作,并且可以根据受控装置是集成型还是非积分型两种控制信号中的任一种进行控制。 该方法还可以提供手动和自动控制之间的无扰动转换。

    Method and apparatus for using flow behavior index to control polymer rheology and physical properties
    40.
    发明公开
    Method and apparatus for using flow behavior index to control polymer rheology and physical properties 失效
    对流动行为指数为控制聚合物的流变学和物理特性的应用的方法和装置。

    公开(公告)号:EP0437252A2

    公开(公告)日:1991-07-17

    申请号:EP91100238.4

    申请日:1991-01-09

    发明人: Rao, Sundar Mohan

    IPC分类号: G01N11/08 G05D24/02 C08F2/00

    摘要: Process and apparatus for on-line determination and control of the Flow Behavior Index of a molten polymer stream are disclosed along with methods for using the Index as a means for monitoring and controlling polymer quality. In particular, the Index may be used to monitor and control on-line the levels of branching in the polymer and the polymer's molecular weight distribution.

    摘要翻译: 用于在线测定和熔融聚合物流的流动行为指标的控制过程和装置游离缺失盘非常久远使用索引作为一种手段用于监测和控制聚合物的质量的方法。 特别地,索引可被用来监视和在线控制聚合物和聚合物的分子量分布在支化的水平。