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    • 2. 发明申请
    • METHOD FOR TREATING A HYDROCARBON STREAM
    • 处理油气田的方法
    • WO2007138067A2
    • 2007-12-06
    • PCT/EP2007/055225
    • 2007-05-30
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.BRAS, Eduard CoenraadCHIENG, Jill Hui ChiunWANI, Akash Damodar
    • BRAS, Eduard CoenraadCHIENG, Jill Hui ChiunWANI, Akash Damodar
    • C10L3/10C10L3/102F25J3/0209F25J3/0233F25J3/0238F25J2200/02F25J2200/70F25J2200/74F25J2205/04F25J2210/62F25J2220/66F25J2235/60F25J2240/02F25J2270/904
    • The present invention relates to a method for treating a hydrocarbon stream such as a natural gas stream, containing > 10 mole% CO 2 , the method at least comprising the steps of: (a) supplying a partly condensed feed stream (10) containing > 10 mole% CO 2 to a first gas/liquid separator (2); (b) separating the feed stream (10) in the first gas/liquid separator (2) into a gaseous stream (20) and a liquid stream (30); (c) expanding the liquid stream (30) obtained in step (b) and feeding it (40) into a second gas/liquid separator (3) at a first feeding point (31); (d) expanding the gaseous stream (20) obtained in step (b), thereby obtaining an at least partially condensed stream (50), and subsequently feeding it into the second gas/liquid separator (3) at a second feeding point (32), the second feeding point (32) being at a higher level than the first feeding point (31); (e) removing from the top of the second gas/liquid separator (3) a gaseous stream (60), partially condensing it and feeding it (70) into a third gas/liquid separator (4); (f) separating the stream (70) fed in the third gas/liquid separator (4) in step (e) thereby obtaining a liquid stream (80) and a gaseous stream (90); (g) feeding the liquid stream (80) obtained in step (f), having a temperature above the freezing point of CO 2 at the prevailing conditions, into the second gas/liquid separator (3) at a third feeding point (33), the third feeding point (33) being at a higher level than the second feeding point (32); and (h) removing from the bottom of the second gas/liquid separator (3) a liquid stream (100, 100a); wherein the gaseous stream (60) removed from the second gas/liquid separator (3) in step (e) is partially condensed by heat exchanging against a cold stream (120).
    • 本发明涉及一种用于处理烃流的方法,例如含有> 10摩尔%CO 2的天然气流,该方法至少包括以下步骤:(a)提供部分冷凝的 含有> 10摩尔%CO 2的进料流(10)至第一气/液分离器(2); (b)将第一气/液分离器(2)中的进料流(10)分离成气流(20)和液流(30); (c)使在步骤(b)中获得的液体流(30)膨胀并且在第一进料点(31)将其进料(40)进料到第二气/液分离器(3)中; (d)膨胀在步骤(b)中获得的气流(20),从而获得至少部分冷凝的流(50),然后在第二进料点(32)将其送入第二气/液分离器(3) ),所述第二馈电点(32)处于比所述第一馈电点(31)更高的电平; (e)从第二气/液分离器(3)的顶部除去气流(60),部分地冷凝并将其输送(70)到第三气/液分离器(4)中; (f)在步骤(e)中分离在第三气/液分离器(4)中进料的料流(70),从而获得液体流(80)和气流(90); (g)在主要条件下将具有高于CO 2 2的凝固点的温度的步骤(f)中获得的液体流(80)进料到第二气/液分离器(3)中, 第三馈电点(33),所述第三馈电点(33)处于比所述第二馈电点(32)更高的水平; 和(h)从第二气/液分离器(3)的底部排出液体流(100,100a); 其中在步骤(e)中从所述第二气/液分离器(3)除去的气流(60)通过与冷流(120)进行热交换而部分冷凝。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR TREATING A HYDROCARBON STREAM
    • 处理油气田的方法和装置
    • WO2008022998A2
    • 2008-02-28
    • PCT/EP2007/058648
    • 2007-08-21
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.BRAS, Eduard CoenraadCHIENG, Jill Hui ChiunWANI, Akash Damodar
    • BRAS, Eduard CoenraadCHIENG, Jill Hui ChiunWANI, Akash Damodar
    • F25J3/0209F25J3/0214F25J3/0233F25J3/0238F25J2200/02F25J2205/04F25J2205/30F25J2210/62F25J2240/02F25J2270/904
    • The present invention relates to a method of treating a hydrocarbon stream in a plant, the method at least comprising the steps of: (a) supplying a partly condensed feed stream (10) to a first gas/liquid separator (2); (b) separating the feed stream (10) in the first gas/liquid separator (2) into a gaseous stream (20) and a liquid stream (30); (c) expanding the liquid stream (30) obtained in step (b) and feeding it (40) into a second gas/liquid separator (3) at a first feeding point (31); (d) expanding the gaseous stream (20) obtained in step (b), thereby obtaining an at least partially condensed stream (50), and subsequently feeding it into the second gas/liquid separator (3) at a second feeding point (32), the second feeding point (32) being at a higher level than the first feeding point (31); (e) feeding a liquefied natural gas stream (70,70b) into the second gas/liquid separator (3) at a third feeding point (33) being at a higher level than the second feeding point (32); (f) removing from the top of the second gas/liquid separator (3) a C2+ lean gaseous stream (60); and (g) removing from the bottom of the second gas/liquid separator (3) a liquid stream (80, 80a); wherein the liquefied natural gas stream (70,70b) as fed is step (e) is obtained from a source (4) of liquefied natural gas from a separate plant.
    • 本发明涉及一种处理植物中烃流的方法,所述方法至少包括以下步骤:(a)将部分冷凝的进料流(10)供应到第一气/液分离器(2); (b)将第一气/液分离器(2)中的进料流(10)分离成气流(20)和液流(30); (c)使在步骤(b)中获得的液体流(30)膨胀并且在第一进料点(31)将其进料(40)进料到第二气/液分离器(3)中; (d)膨胀步骤(b)中获得的气流(20),从而获得至少部分冷凝的流(50),并随后在第二进料点(32)将其送入第二气/液分离器(3) ),所述第二馈电点(32)处于比所述第一馈电点(31)更高的电平; (e)在比第二供给点(32)高的第三供给点(33)将液化的天然气流(70,70b)供给到第二气/液分离器(3)中; (f)从第二气/液分离器(3)的顶部除去C2 +贫气流(60); 和(g)从第二气/液分离器(3)的底部除去液体流(80,80a); 其中从步骤(e)输入的液化天然气流(70,70b)从来自单独设备的液化天然气源(4)获得。