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1. 发明申请

WO2010018191A1 METHOD FOR CONTROLLING A GAS FLOW BETWEEN A PLURALITY OF GAS STREAMS 审中-公开
标题翻译：控制气体流量大气之间气体流动的方法
公开(公告)号：WO2010018191A1
公开(公告)日：2010-02-18
申请号：PCT/EP2009/060432
申请日：2009-08-12
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , BEEBY, Clive , HUPKES, Willem
发明人： BEEBY, Clive , HUPKES, Willem
IPC分类号： G05D11/13 , G05D16/20
CPC分类号： F25J1/023 , F25J1/0242 , F25J1/0244 , F25J3/0295 , F25J2210/02 , F25J2210/06 , F25J2240/70 , F25J2280/02 , F25J2290/60 , Y10T137/0363 , Y10T137/0379 , Y10T137/2521 , Y10T137/2529
摘要： The present invention relates to a method and apparatus for controlling a gas flow through a conjunction between one or more incoming streams and one or more outgoing streams through a conjunction. The method uses a biased mass flow imbalance value obtained by comparing the aggregate of incoming mass flow measurement value(s) with the aggregate of outgoing mass flow measurement value (s) and adding a bias component to provide the biased mass flow imbalance value. The flow of at least one of the incoming and outgoing streams (12, 14, 16, 18, 20) is adjusted to move the biased mass flow imbalance value towards zero. In addition, a conjunction pressure measurement (PC) is provided, which is used to adjust the bias component in response to a change in the conjunction pressure measurement (PC) relative to a pressure set point (PSP), to mitigate the change in the conjunction pressure measurement (PC) relative to the pressure set point (PSP).
摘要翻译：本发明涉及一种用于控制通过一个或多个输入流与通过连接的一个或多个输出流之间的连接的气流的方法和装置。该方法使用通过将进入质量流量测量值的总和与出口质量流量测量值的总和进行比较而获得的偏置质量流量不平衡值，并且添加偏置分量以提供偏置质量流量不平衡值。调节进入流和流出流（12,14,16,18,20）中的至少一个流的流动，以将偏置的质量流量不平衡值向零移动。此外，提供了一种连接压力测量（PC），其用于响应于相对于压力设定点（PSP）的连接压力测量（PC）的变化来调节偏压分量，以减轻连接压力测量（PC）相对于压力设定点（PSP）。

2. 发明申请

WO2004068049A1 PROCESS OF LIQUEFYING A GASEOUS, METHHANE-RICH FEED TO OBTAIN LIQUEFIED NATURAL GAS 审中-公开
标题翻译：液化天然气，甲基丙烯酸获得液化天然气的方法
公开(公告)号：WO2004068049A1
公开(公告)日：2004-08-12
申请号：PCT/EP2004/050055
申请日：2004-01-30
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , HUPKES, Willem , LIN, Pei, Jung , SILVE, Roland, Pierre , VINK, Kornelis, Jan
发明人： HUPKES, Willem , LIN, Pei, Jung , SILVE, Roland, Pierre , VINK, Kornelis, Jan
IPC分类号： F25J1/02
CPC分类号： F25J1/0022 , F25J1/0052 , F25J1/0055 , F25J1/0212 , F25J1/0216 , F25J1/0249 , F25J1/0252 , F25J1/0268 , F25J1/0283 , F25J1/0287 , F25J1/0292 , F25J1/0298
摘要： Cooling and liquefying a gaseous, methane-rich feed (20) in a main heat exchanger (1) against evaporating refrigerant to get a liquefied stream (23) and passing (80) the liquefied stream (23) to storage as liquefied product. The process comprises adjusting the composition and the amount of refrigerant and controlling the liquefaction process, using an advanced process controller based on model predictive control to determine simultaneous control actions for a set of manipulated variables in order to optimize at least one of a set of parameters whilst controlling at least one of a set of controlled variables, wherein the set of manipulated variables includes the mass flow rate of the heavy refrigerant fraction (52) the mass flow rate of the light refrigerant fraction (59), the amount of refrigerant components make-up (26), the amount of refrigerant removed (54), the capacity of the refrigerant compressor (30, 32) and the mass flow rate of the methane-rich feed (20) wherein the set of controlled variables includes the temperature difference at the warm end (3) of the main heat exchanger (1), a variable relating to the temperature of the liquefied natural gas (23), the composition of the refrigerant entering the separator (45), the pressure in the shell of the main heat exchanger (1), the pressure in the separator (45) and the level of the liquid in the separator (45), and wherein the set of variables to be optimized includes the production of liquefied product (80).
摘要翻译：在主热交换器（1）中冷却和液化气态富含甲烷的进料（20），以蒸发制冷剂以获得液化流（23），并将液化物流（80）通过（80）作为液化产物储存。该方法包括通过使用基于模型预测控制的先进过程控制器来调节制冷剂的组成和量并控制液化过程，以确定一组操纵变量的同时控制动作，以优化一组参数中的至少一个同时控制一组控制变量中的至少一个，其中该组操作变量包括重制冷剂分数（52）的质量流率，轻质制冷剂馏分（59）的质量流率，制冷剂组分的量（26），除去的制冷剂量（54），制冷剂压缩机（30,32）的容量和富甲烷进料（20）的质量流量，其中该组控制变量包括温差在主热交换器（1）的暖端（3）处，与液化天然气（23）的温度有关的变量，制冷剂的组成进入分离器（45），主热交换器（1）的壳体中的压力，隔板（45）中的压力和隔板（45）中的液体的液位，并且其中要优化的变量集合包括生产液化产品（80）。

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