Apparatus For (Meth) Acrylic Acid Production And Process For Producing (Meth) Acrylic Acid
    2.
    发明申请
    Apparatus For (Meth) Acrylic Acid Production And Process For Producing (Meth) Acrylic Acid 审中-公开
    (甲基)丙烯酸生产装置和(甲基)丙烯酸生产方法

    公开(公告)号:US20080021238A1

    公开(公告)日:2008-01-24

    申请号:US11569578

    申请日:2004-09-07

    IPC分类号: C07C51/00 B01J19/00 F28D21/00

    摘要: (Meth)acrylic acid is produced using a reactor (1) through a vapor-phase catalytic oxidation reaction of propane or the like in a raw material gas, and the obtained reaction gas is distributed to a heat exchanger (20) and an absorption tower (30). Heat energy is recovered from the reaction gas supplied to the heat exchanger (20), and the reaction gas cooled in the heat exchanger (20) and the reaction gas distributed to the absorption tower (30) are supplied to the absorption tower (30). (Meth) acrylic acid is recovered from the reaction gas in an absorbing liquid, to thereby produce (meth) acrylic acid. The reaction gas is distributed to the heat exchanger (20) and the absorption tower (30) according to a pressure of the raw material gas at an inlet of the reactor (1). The present invention allows heat recovery from the reaction gas and a stable and continuous operation even when the heat exchanger for heat recovery is clogged.

    摘要翻译: (甲基)丙烯酸通过原料气体中丙烷等的气相催化氧化反应使用反应器(1)制备,并将所得反应气体分配到热交换器(20)和吸收塔 (30)。 从供给到热交换器(20)的反应气体回收热能,在热交换器(20)中冷却的反应气体和分配到吸收塔(30)的反应气体供给到吸收塔30, 。 (甲基)丙烯酸从吸收液体中的反应气体中回收,由此生成(甲基)丙烯酸。 反应气体根据反应器(1)入口处的原料气体的压力而分配到热交换器(20)和吸收塔(30)。 即使在热回收用热交换器堵塞的情况下,本发明也能够从反应气体进行热回收和稳定连续的运转。

    Process for producing acrylic acid
    3.
    发明授权
    Process for producing acrylic acid 失效
    丙烯酸生产工艺

    公开(公告)号:US5910607A

    公开(公告)日:1999-06-08

    申请号:US508697

    申请日:1995-07-28

    CPC分类号: C07C51/46

    摘要: In a process for producing acrylic acid, wherein propylene and/or acrolein is catalytically oxidized with molecular oxygen in a vapor phase and the gas resulting from the oxidation is cooled and/or absorbed in water to form a crude aqueous acrylic acid, followed by azeotropic distillation to remove the water with an entrainer of a boiling point of no higher than 130.degree. C. on the crude aqueous acrylic acid which may have, upon necessity, undergone removal of aldehydes contained therein to produce acrylic acid purified in that the crude aqueous acrylic acid is substantially dehydrated, the improvement which comprises conducting the azeotropic distillation under such conditions that concentrations of the entrainer and water in the bottom product of the azeotropic distillation are from 5% to 30% by weight and no higher than 0.5% by weight, respectively, where the theoretical number of plates in the azeotropic distillation column for dehydration used and that in the distillation column for separating acetic acid used are preferably from 5 to 20. Highly-purified acrylic acid can thus be obtained from the crude aqueous acrylic acid without causing unfavorable polymerization of acrylic acid.

    摘要翻译: 在制备丙烯酸的方法中,其中丙烯和/或丙烯醛在气相中用分子氧催化氧化,并且由氧化产生的气体在水中冷却和/或吸收以形成粗水性丙烯酸,然后共沸 蒸馏以除去水,其中沸点不高于130℃的夹带剂在粗水性丙烯酸上,根据需要,可以将其除去其中所含的醛以产生纯化的丙烯酸,因为粗水性丙烯酸 酸基本脱水,其改进包括在共沸蒸馏的底部产物中的夹带剂和水的浓度分别为5重量%至30重量%且不高于0.5重量%的条件下进行共沸蒸馏 ,其中用于脱水的共沸蒸馏塔中的理论塔板数和蒸馏塔中的板的理论数量 所使用的分离乙酸优选为5〜20。因此,可以从粗水性丙烯酸获得高度纯化的丙烯酸,而不会引起丙烯酸的不利聚合。

    Crystallization method
    4.
    发明授权
    Crystallization method 失效
    结晶方法

    公开(公告)号:US5935534A

    公开(公告)日:1999-08-10

    申请号:US758502

    申请日:1996-12-02

    CPC分类号: C07C51/43 C07B63/04

    摘要: In a crystallization method, a liquid mixture containing a crystallizable component is cooled so as to form and separate crystals of the crystallizable component. Then, a purified melt having purity substantially equal to that of the separated crystals, to which a polymerization inhibitor is added and which is heated to a temperature higher than a freezing point of the separated crystals, is circulated to flow contacting the crystals so as to accelerate melting. Then, the melted crystals are recovered along with the purified melt containing the polymerization inhibitor.

    摘要翻译: 在结晶方法中,将含有可结晶组分的液体混合物冷却以形成和分离可结晶组分的晶体。 然后,将纯度基本上等于分离的结晶的纯化熔体循环到与晶体接触的流动中,向其中加入聚合抑制剂并将其加热到高于分离晶体的凝固点的温度,从而 加速融化 然后,将熔融的晶体与含有聚合抑制剂的纯化熔体一起回收。

    Gas turbine installation
    6.
    发明申请
    Gas turbine installation 有权
    燃气轮机安装

    公开(公告)号:US20070039307A1

    公开(公告)日:2007-02-22

    申请号:US11503934

    申请日:2006-08-15

    IPC分类号: F02C3/30 F02C7/10

    摘要: Disclosed is a gas turbine power generating system capable of achieving a high output power and a high power generating efficiency under conditions with a small amount of supplied water and less change in design of a gas turbine. A fine water droplet spraying apparatus (11) is disposed in a suction air chamber (22) on the upstream side of an air compressor (2), and a moisture adding apparatus (7) for adding moisture to high pressure air supplied from the compressor (2) is disposed. A regenerator (5) for heating the air to which moisture has been added by using gas turbine exhaust gas as a heat source is also provided. With this configuration, there can be obtain an effect of reducing a power for the compressor (2) and an effect of increasing the output power due to addition of moisture to air (20) for combustion. Further, since the used amount of fuel is reduced by adopting a regenerating cycle, the power generating efficiency is improved.

    摘要翻译: 公开了一种燃气轮机发电系统,其能够在少量供水的条件下和燃气轮机的设计变化较小的情况下实现高输出功率和高发电效率。 在空气压缩机(2)的上游侧的吸入空气室(22)中配置有微细的水滴喷射装置(11),以及将来自压缩机(2)供给的高压空气中的水分添加到水分添加装置 (2)。 还提供了一种用于通过使用燃气轮机废气作为热源来加热已经添加了水分的空气的再生器(5)。 通过这种结构,可以获得降低压缩机(2)的功率的效果,以及由于向空气(20)中添加水分而增加输出功率的效果,用于燃烧。 此外,由于通过采用再生循环来减少使用的燃料量,所以发电效率提高。

    Gas turbine installation
    7.
    发明申请
    Gas turbine installation 有权
    燃气轮机安装

    公开(公告)号:US20060032211A1

    公开(公告)日:2006-02-16

    申请号:US11253829

    申请日:2005-10-20

    IPC分类号: F02C7/10 F02C3/30

    摘要: Disclosed is a gas turbine power generating system capable of achieving a high output power and a high power generating efficiency under conditions with a small amount of supplied water and less change in design of a gas turbine. A fine water droplet spraying apparatus (11) is disposed in a suction air chamber (22) on the upstream side of an air compressor (2), and a moisture adding apparatus (7) for adding moisture to high pressure air supplied from the compressor (2) is disposed. A regenerator (5) for heating the air to which moisture has been added by using gas turbine exhaust gas a heat source is also provided. With this configuration, there can be obtain an effect of reducing a power for the compressor (2) and an effect of increasing the output power due to addition of moisture to air (20) for combustion. Further, since the used amount of fuel is reduced by adopting a regenerating cycle, the power generating efficiency is improved.

    摘要翻译: 公开了一种燃气轮机发电系统,其能够在少量供水的条件下和燃气轮机的设计变化较小的情况下实现高输出功率和高发电效率。 在空气压缩机(2)的上游侧的吸入空气室(22)中配置有微细的水滴喷射装置(11),以及将来自压缩机(2)供给的高压空气中的水分添加到水分添加装置 (2)。 还提供一种用于通过使用燃气轮机废气加热加热了水分的空气的再生器(5)。 通过这种结构,可以获得降低压缩机(2)的功率的效果,以及由于向空气(20)中添加水分而增加输出功率的效果,用于燃烧。 此外,由于通过采用再生循环来减少使用的燃料量,所以发电效率提高。

    Gas turbine installation
    9.
    发明授权
    Gas turbine installation 失效
    燃气轮机安装

    公开(公告)号:US06854259B2

    公开(公告)日:2005-02-15

    申请号:US10670461

    申请日:2003-09-26

    IPC分类号: F02C3/30 F02C7/143 F02C7/10

    摘要: Disclosed is a gas turbine power generating system capable of achieving a high output power and a high power generating efficiency under conditions with a small amount of supplied water and less change in design of a gas turbine.A fine water droplet spraying apparatus (11) is disposed in a suction air chamber (22) on the upstream side of an air compressor (2), and a moisture adding apparatus (7) for adding moisture to high pressure air supplied from the compressor (2) is disposed. A regenerator (5) for heating the air to which moisture has been added by using gas turbine exhaust gas as a heat source is also provided. With this configuration, there can be obtain an effect of reducing a power for the compressor (2) and an effect of increasing the output power due to addition of moisture to air (20) for combustion. Further, since the used amount of fuel is reduced by adopting a regenerating cycle, the power generating efficiency is improved.

    摘要翻译: 公开了一种燃气轮机发电系统,其能够在少量供水量和燃气轮机的设计变化较小的条件下实现高输出功率和高发电效率。微细水滴喷射装置(11)是 设置在空气压缩机(2)的上游侧的吸入空气室(22)中,并且设置有用于向从压缩机(2)供给的高压空气中添加水分的湿气添加装置(7)。 还提供了一种用于通过使用燃气轮机废气作为热源来加热已经添加了水分的空气的再生器(5)。 通过这种结构,可以获得降低压缩机(2)的功率的效果,以及由于向空气(20)中添加水分而增加输出功率的效果,用于燃烧。 此外,由于通过采用再生循环来减少使用的燃料量,所以发电效率提高。