会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • COOLING A FLUID STREAM
    • 冷却流体流
    • WO1996033379A1
    • 1996-10-24
    • PCT/EP1996001638
    • 1996-04-17
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.KLEIN NAGELVOORT, RobertVINK, Kornelis, JanMERCER, Hilary, Ann
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
    • F25J01/02
    • F25J1/0265F25J1/0022F25J1/0055F25J1/0212F25J1/0216F25J1/0292F25J2245/02
    • Method of cooling a fluid stream which passes through a hot side (1d, 1b, 1c) of a main heat exchanger (1) comprising removing refrigerant from the main heat exchanger (1); compressing refrigerant in a two-stage compressor unit (7) to obtain refrigerant at high pressure; partly condensing (12) the refrigerant to obtain a first two-phase fluid, and separating (13) the first two-phase fluid into a first condensed fraction (15) and a first gaseous fraction (16); cooling the first condensed fraction (15) in an auxiliary heat exchanger (2) to obtain a cooled first condensed fraction (18), cooling the first gaseous fraction (16) in the auxiliary heat exchanger (2) to obtain a second two-phase fluid (26), wherein cooling is provided by liquid evaporating at intermediate pressure in the cold side (2a); separating (28) the second two-phase fluid into a second condensed fraction (33) and a second gaseous fraction (32); allowing part of the second condensed fraction (49) to evaporate in the cold side (2a) of the auxiliary heat exchanger (2); and cooling the remainder of the second condensed fraction (33) in the main heat exchanger (1) to obtain a cooled second condensed fraction, and cooling the second gaseous fraction in the main heat exchanger (1), wherein cooling is provided by liquid evaporating at low pressure in the cold side (1a) of the main heat exchanger (1).
    • 冷却通过主热交换器(1)的热侧(1d,1b,1c)的流体流的方法,包括从主热交换器(1)除去制冷剂; 压缩二级压缩机单元(7)中的制冷剂以获得高压制冷剂; 部分地冷凝(12)制冷剂以获得第一两相流体,并将第一两相流体(13)分离成第一冷凝馏分(15)和第一气体馏分(16); 在辅助热交换器(2)中冷却第一冷凝馏分(15)以获得冷却的第一冷凝馏分(18),冷却辅助热交换器(2)中的第一气态馏分(16)以获得第二两相 流体(26),其中通过在冷侧(2a)中以中间压力蒸发的液体提供冷却; 将所述第二两相流体(28)分离成第二冷凝馏分(33)和第二气体馏分(32); 使得第二冷凝馏分(49)的一部分在辅助热交换器(2)的冷侧(2a)中蒸发; 在主热交换器(1)中冷却第二冷凝馏分(33)的剩余部分,得到冷却后的第二冷凝馏分,并冷却主热交换器(1)中的第二气体馏分,其中通过液体蒸发提供冷却 在主热交换器(1)的冷侧(1a)中的低压下。
    • 4. 发明申请
    • PROCESS OF LIQUEFYING A GASEOUS, METHHANE-RICH FEED TO OBTAIN LIQUEFIED NATURAL GAS
    • 液化天然气,甲基丙烯酸获得液化天然气的方法
    • WO2004068049A1
    • 2004-08-12
    • PCT/EP2004/050055
    • 2004-01-30
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.HUPKES, WillemLIN, Pei, JungSILVE, Roland, PierreVINK, Kornelis, Jan
    • HUPKES, WillemLIN, Pei, JungSILVE, Roland, PierreVINK, Kornelis, Jan
    • F25J1/02
    • F25J1/0022F25J1/0052F25J1/0055F25J1/0212F25J1/0216F25J1/0249F25J1/0252F25J1/0268F25J1/0283F25J1/0287F25J1/0292F25J1/0298
    • 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).
    • 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)。
    • 5. 发明申请
    • REDUCING THE AMOUNT OF COMPONENTS HAVING LOW BOILING POINTS IN LIQUEFIED NATURAL GAS
    • 降低液化天然气中低沸点成分的含量
    • WO1997032172A1
    • 1997-09-04
    • PCT/EP1997001000
    • 1997-02-27
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.ELION, Wiveka, JacobaKLEIN NAGELVOORT, RobertVINK, Kornelis, Jan
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
    • F25J03/02
    • F25J3/029F25J3/0209F25J3/0233F25J3/0257F25J2200/02F25J2200/40F25J2200/70F25J2200/90F25J2205/04F25J2215/04F25J2240/30F25J2240/40F25J2270/02
    • Method of reducing the amount of components having low boiling points in liquefied natural gas (1) comprising passing the liquefied natural gas at liquefaction pressure through the hot side (2) of an external heat exchanger (3) to obtain cooled liquefied natural gas (6), allowing the cooled liquefied natural gas to expand dynamically (9) to an intermediate pressure and statically (10) to a low pressure to obtain expanded fluid (15), and introducing expanded fluid into the upper part of a fractionation column (20) provided with a contacting section (25) arranged between the upper part and the lower part of the fractionation column; passing a direct side stream (32) at low pressure through the cold side (30) of the external heat exchanger (3) to obtain heated two-phase fluid (36); introducing the heated two-phase fluid into the lower part (28) of the fractionation column (20) and allowing the vapour to flow upwards through the contacting section (25); allowing the liquid of the expanded fluid to flow downwards through the contacting section (25); and withdrawing from the lower part of the fractionation column (20) a liquid product stream (45) having a reduced content of components having low boiling points, and from the upper part of the fractionation column a gas stream (47) which is enriched in components having low boiling points.
    • 包括在液化天然气(1)中减少具有低沸点的组分的量的方法,包括使液化天然气在液化压力下通过外部热交换器(3)的热侧(2),以获得冷却的液化天然气(6) ),允许冷却的液化天然气动态膨胀(9)到中间压力和静态(10)至低压,以获得膨胀流体(15),并将膨胀流体引入分馏塔(20)的上部, 设置有布置在分馏塔的上部和下部之间的接触部分(25); 在低压下通过外部热交换器(3)的冷侧(30)使直接侧流(32)通过,以获得加热的两相流体(36); 将加热的两相流体引入分馏塔(20)的下部(28)并允许蒸汽向上流过接触部分(25); 允许膨胀流体的液体向下流过所述接触部分(25); 并且从分馏塔(20)的下部排出具有低沸点成分含量降低的液体产物流(45),并且从分馏塔的上部排出富含气体的气流(47) 低沸点成分。