PROCESS FOR PRODUCING LIQUEFIED IMPURE ETHYLENE
    2.
    发明申请
    PROCESS FOR PRODUCING LIQUEFIED IMPURE ETHYLENE 审中-公开
    生产液体乙烯的方法

    公开(公告)号:WO2014048864A3

    公开(公告)日:2015-07-16

    申请号:PCT/EP2013069676

    申请日:2013-09-23

    申请人: SOLVAY

    摘要: Process for the production of liquefied impure ethylene LIE from a gas mixture GM which contains ethylene in a quantity of less than 99.80 % by volume and other constituents among which at least one lower boiling gas BG using two stage JT-expansion and recycling of the flash gases GP1 and GP2 and the boil-off gas BOFF from the LIE storage device to the gas mixture GM. The low boiling gas BG is purged from the process either from an intermediate liquid stream LP or from the first flash gas stream GP1, re-liquefied to generate a liquid phase REC and returned back to an intermediate liquid stream LP or LP1 in order to increase the LIE recovery.

    摘要翻译: 从含有少于99.80%体积的乙烯的气体混合物GM生产液化的不纯乙烯LIE的方法和其它成分,其中至少一种低沸点气体BG使用两级JT膨胀和再循环闪蒸 气体GP1和GP2以及从LIE储存装置到气体混合物GM的蒸发气BOFF。 从中间液体流LP或从第一闪蒸气流GP1中清除低沸点气体BG,再次液化以产生液相REC并返回到中间液流LP或LP1,以便增加 LIE恢复。

    METHOD AND APPARATUS FOR PROVIDING CONDITIONED ETHANE
    3.
    发明申请
    METHOD AND APPARATUS FOR PROVIDING CONDITIONED ETHANE 审中-公开
    用于提供有条件的乙烷的方法和设备

    公开(公告)号:WO2014102113A9

    公开(公告)日:2014-08-21

    申请号:PCT/EP2013077115

    申请日:2013-12-18

    IPC分类号: F25J3/02

    摘要: In a method and an apparatus ethylene and an ethane stream are produced from a C2 hydrocarbon stream (510) comprising ethane and ethylene. The C2 hydrocarbon stream (510) is fractionated in a C2 fractionator (600) to provide a C2 overhead stream (610) comprising ethylene and a C2 bottoms stream (620) comprising ethane. A portion of the C2 bottoms stream (620) comprising ethane is conditioned, wherein expanding the portion (630) of the C2 bottoms stream (620) to form an expanded portion (710), and wherein removing a gaseous C2 stream (810) from the expanded portion (710) to provide a conditioned ethane stream (820). The conditioned ethane stream (820) is in the liquid state and at a pressure in the range of from about 1 to 2 bar, and at least 95 mol% thereof consists of ethane.

    摘要翻译: 在乙烯和乙烷流的方法和设备中,由包含乙烷和乙烯的C2烃流(510)产生乙烯和乙烷流。 C 2烃物流(510)在C 2分馏塔(600)中分馏以提供包含乙烯的C2顶部物流(610)和包含乙烷的C 2塔底物流(620)。 调节包含乙烷的C2底部料流(620)的一部分,其中使C2底部料流(620)的部分(630)膨胀以形成膨胀部分(710),并且其中将气态C2料流(810)从 膨胀部分(710)以提供经调节的乙烷流(820)。 经调节的乙烷流(820)处于液态并且压力在约1至2巴范围内,并且其至少95mol%由乙烷组成。

    PROCESS FOR PRODUCING LIQUEFIED IMPURE ETHYLENE
    4.
    发明申请
    PROCESS FOR PRODUCING LIQUEFIED IMPURE ETHYLENE 审中-公开
    生产液体乙烯的方法

    公开(公告)号:WO2014048864A2

    公开(公告)日:2014-04-03

    申请号:PCT/EP2013/069676

    申请日:2013-09-23

    申请人: SOLVAY SA

    摘要: Process for the production of liquefied impure ethylene LIE from a gas mixture GM which contains ethylene in a quantity of less than 99.80 % by volume and other constituents among which at least one lower boiling gas BG, according to which: 1. the gas mixture GM and the recycled gas stream RG issued from step 9 of the process are mixed and compressed, either independently before being mixed and/or together after being mixed, in order to obtain a compressed gas mixture CGM; 2. the said compressed gas mixture CGM is cooled down and at least partially condensed in order to obtain a cooled compressed liquefied mixture LP; 3. the pressure of the cooled compressed liquefied mixture LP issued from step 2, optionally previously submitted to a purge in order to withdraw purged gases PG thereof as recited in step 4, is reduced by a first adiabatic expansion whereby a first liquid phase LP1 and a first gaseous phase GP1 are formed; 4. either the first gaseous phase GP1 formed in step 3 and/or the cooled compressed liquefied mixture LP formed in step 2 is submitted to a purge in order to withdraw purged gases PG thereof; 5. the withdrawn purged gases PG are optionally at least partially condensed in order to recover, on one part, a liquid REC mainly constituted of ethylene and, on the other part, a gas phase mainly constituted of the at least one lower boiling gas BG; 6. optionally the liquid REC recovered in step 5 is returned back : - either to the cooled compressed liquefied mixture LP formed in step 2 in the case LP is submitted to a purge in order to withdraw purged gases PG thereof; - and/or to the first liquid phase LP1 formed in step 3 in the case the first gaseous phase GP1 formed in step 3 is submitted to a purge in order to withdraw purged gases PG thereof; 7. the pressure of the first liquid phase LPl formed in step 3, to which the liquid REC is optionally returned back in the case the first gaseous phase GP1 is submitted to a purge in order to withdraw purged gases PG thereof, is reduced by a second adiabatic expansion, whereby a second liquid phase LP2, mainly constituted of liquefied ethylene, and a second gaseous phase GP2 are formed; 8. the second liquid phase LP2 mainly constituted of liquefied ethylene formed in step 7 is collected as the produced liquefied impure ethylene LIE in a storage device in which optional boil-off gases BOFF are generated; 9. the second gaseous phase GP2 formed in step 7, the optional boil-off gases BOFF and the first gaseous phase GP1 are mixed and optionally compressed before being mixed all three, in order to obtain a recycled gas stream RG sent back to step 1.

    摘要翻译: 从含有小于99.80体积%的乙烯的气体混合物GM生产液化的不纯乙烯LIE的方法和其中至少一种低沸点气体BG的其它组分,其中:1.气体混合物GM 并将从工艺步骤9发出的循环气流RG在混合前和/或混合后独立地混合和压缩,以获得压缩气体混合物CGM; 将所述压缩气体混合物CGM冷却并至少部分冷凝以获得冷却的压缩液化混合物LP; 3.如步骤4所述,从步骤2发出的冷却的压缩液化混合物LP的压力,任选地预先进行吹扫以便抽出其步骤4中所列的吹扫气体PG,由第一绝热膨胀减少第一液相LP1和 形成第一气相GP1; 4.在步骤3中形成的第一气相GP1和/或在步骤2中形成的冷却的压缩液化混合物LP进行吹扫以抽出其净化气体PG; 抽出的净化气体PG任选地至少部分冷凝,以便一部分回收主要由乙烯构成的液体REC,另一方面回收主要由至少一种低沸点气体BG ; 6.任选地,步骤5中回收的液体REC返回: - 在步骤2中形成的冷却的压缩液化混合物LP中,在LP的情况下进行吹扫以抽出其净化气体PG; - 在步骤3中形成的第一气相GP1进行吹扫以抽出其净化气体PG的情况下,在步骤3中形成的第一液相LP1和/或至第一液相LP1。 7.在步骤3中形成的第一液相LP1的压力,在第一气相GP1进行吹扫以抽出其净化气体PG的情况下,液体REC可选地返回到该步骤3中的压力减少了 第二绝热膨胀,由此形成主要由液化乙烯构成的第二液相LP2和第二气相GP2; 在步骤7中形成的液化乙烯主要由液化乙烯组成的第二液相LP2作为生产的液化不纯的乙烯LIE被收集在其中产生任选的蒸发气体BOFF的储存装置中; 9.在步骤7中形成的第二气相GP2,将任选的蒸发气体BOFF和第一气相GP1混合并任选地在三个混合之前压缩,以获得送回到步骤1的再循环气流RG 。

    VORRICHTUNG UND VERFAHREN ZUM AUFBEREITEN EINES WASSERSTOFF UND METHAN ENTHALTENDEN STOFFSTROMES
    7.
    发明申请
    VORRICHTUNG UND VERFAHREN ZUM AUFBEREITEN EINES WASSERSTOFF UND METHAN ENTHALTENDEN STOFFSTROMES 审中-公开
    DEVICE AND METHOD FOR氢治疗和含甲烷物料流

    公开(公告)号:WO2013092844A2

    公开(公告)日:2013-06-27

    申请号:PCT/EP2012/076360

    申请日:2012-12-20

    摘要: Die Erfindung betrifft eine Vorrichtung (100) zum Aufbereiten eines Wasserstoff und Methan enthaltenden Stoffstromes (1.1) umfassend folgende Komponenten: (i) mindestens einen Wärmetauscher (KS1) zum Abkühlen eines aufzubereitenden Stoffstromes (1.1); (ii) mindestens eine Trenneinheit (A, A1, A2, A2') zum Aufreinigen des aufzubereitenden Stoffstromes (3) zu einem wasserstoff- und methanreichen Stoffstrom (5); (iii) mindestens eine Kühleinheit (KS2) zum Abkühlen des wasserstoff- und methanreichen Stoffstromes (5); und (iv) mindestens eine kryogene Gastrenneinheit (KS3) zum Trennen des wasserstoff- und methanreichen Stoffstromes (6) in mindestens einen wasserstoffreichen Stoffstrom (7) und mindestens einen methanreichen Stoffstrom (8, 9). Die Erfindung betrifft ferner ein Verfahren zum Aufbereiten eines Stoffstromes.

    摘要翻译: 本发明涉及一种装置(100)用于制备氢和含燃料流(1.1)甲烷,其包括以下组分:(i)至少一个热交换器(KS1)用于冷却再处理材料流(1.1); (ii)在至少一个分离单元(A,A1,A2,A2“),用于物质的纯化将被处理流(3)一个氢和富甲烷物流(5); (iii)至少一个冷却单元(KS2)用于冷却所述氢气和富甲烷燃料流(5); 和(iv)至少一种低温气体分离单元(KS3),用于在至少一个富氢流(7)中分离氢和富甲烷燃料物流(6)和至少一个富含甲烷的流(8,9)。 本发明还涉及一种用于处理的材料流的方法。

    ETHYLENE RECOVERY FROM OFF-GAS
    8.
    发明申请
    ETHYLENE RECOVERY FROM OFF-GAS 审中-公开
    乙烯从气体回收

    公开(公告)号:WO2012087557A3

    公开(公告)日:2012-08-30

    申请号:PCT/US2011063431

    申请日:2011-12-06

    摘要: A method for the recovery of ethylene from an off-gas is provided. This method includes providing an ethylene containing feed gas stream, introducing the ethylene containing gas stream into a first cryogenic separation device, thereby producing a first condensed stream and a first ethylene poor stream, and introducing the ethylene poor stream into a first feed compressor, thereby producing a pressurized first ethylene poor stream. This is repeated three times, resulting in a pressurized third ethylene poor stream, which is introduced into a pressure swing adsorber, thereby producing a high purity hydrogen stream and a PSA tail gas stream. The PSA tail gas stream is into a PSA tail gas compressor, thereby producing a pressurized PSA tail gas stream, which is then combined with an ethylene containing gas stream to produce the ethylene containing feed gas stream. The first condensed stream, the second condensed stream and the third condensed stream are combined to produce a combined condensed stream, which is introduced into an ethylene separation column thereby producing an ethylene rich stream and a methane rich stream. The methane rich stream is introduced into a methane compressor thereby producing a methane fuel stream.

    摘要翻译: 提供了从废气中回收乙烯的方法。 该方法包括提供含乙烯的原料气流,将含乙烯气流引入第一低温分离装置,由此产生第一冷凝流和第一乙烯不良流,并将乙烯不良流引入第一进料压缩机,从而 产生加压的第一乙烯不良流。 这被重复三次,导致加压的第三乙烯不良流,其被引入变压吸附器,从而产生高纯度氢气流和PSA尾气流。 PSA尾气流进入PSA尾气压缩机,从而产生加压的PSA尾气流,然后将其与含乙烯气流组合以产生含乙烯的进料气流。 将第一冷凝物流,第二冷凝物流和第三冷凝物流合并以产生合并的冷凝物流,将其引入乙烯分离塔,从而产生富含乙烯的物流和富含甲烷的物流。 将富甲烷物流引入甲烷压缩机中,从而产生甲烷燃料流。