Method for selectively desulfurizing a crude synthesis gas
    7.
    发明授权
    Method for selectively desulfurizing a crude synthesis gas 有权
    选择性脱硫粗合成气的方法

    公开(公告)号:US09216375B2

    公开(公告)日:2015-12-22

    申请号:US14419944

    申请日:2013-08-06

    摘要: The invention relates to a method for operating a gas scrubber, in which a feed gas (1) containing hydrogen, carbon monoxide, carbon dioxide and carbonyl sulfide and/or hydrogen sulfide is scrubbed in a scrubbing apparatus (A1) using a scrubbing agent (3, 4) preladen with carbon dioxide in order largely selectively to separate the sulfur components from the feed gas and to produce a desulfurized gas stream (5, 9). The invention is distinguished in that a sulfur-free scrubbing agent (3, 4) is used which, on introduction thereof into the scrubbing apparatus (A1), has a carbon dioxide partial pressure which is greater than or equal to the carbon dioxide partial pressure in the feed gas (1) to be desulfurized.

    摘要翻译: 本发明涉及一种操作气体洗涤器的方法,其中在洗涤装置(A1)中使用洗涤剂(A1)洗涤含有氢气,一氧化碳,二氧化碳和羰基硫化物和/或硫化氢的进料气体(1) 3,4)预先装有二氧化碳,以便大量选择性地将硫成分与进料气体分离并产生脱硫气流(5,9)。 本发明的区别在于,使用无硫洗涤剂(3,4),其在进入洗涤装置(A1)时具有二氧化碳分压大于或等于二氧化碳分压 在待脱硫的进料气体(1)中。

    Formate based heat stable salt mitigation in physical solvent acid gas absorption processes
    8.
    发明授权
    Formate based heat stable salt mitigation in physical solvent acid gas absorption processes 有权
    物质溶剂酸性气体吸收过程中基于甲酸的热稳定盐减轻

    公开(公告)号:US08952206B2

    公开(公告)日:2015-02-10

    申请号:US14239636

    申请日:2012-08-24

    IPC分类号: C07C41/34 B01D53/14

    摘要: There is described a process for reducing the concentration of formate based heat stable salts formed in a physical solvent acid gas absorption process (12) wherein acid gas contaminants such as hydrogen sulfide and carbon dioxide are removed from gas mixtures (30) which include these contaminants. The process comprises the step of contacting the physical solvent containing formate based heat stable salts (46) with a metallic and/or organometallic catalyst (52), preferably the catalyst comprises palladium, zinc, platinum, nickel, or rhodium, and/or salts thereof and/or oxides thereof. The process is particularly suited for physical solvents such as refrigerated methanol, dialkyl ethers of polyethylene glycols, N-methyl-2-pyrrolidones, propylene carbonate, blends of N-acetylmorpholine and N-formylmorpholine, 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone, and the like and particularly gas mixtures containing ammonia as a contaminant.

    摘要翻译: 描述了一种降低在物理溶剂酸性气体吸收过程(12)中形成的甲酸酯基热稳定盐的浓度的方法,其中从包括这些污染物的气体混合物(30)中除去诸如硫化氢和二氧化碳的酸性气体污染物 。 该方法包括使含有甲酸盐的热稳定盐(46)的物理溶剂与金属和/或有机金属催化剂(52)接触的步骤,优选地,催化剂包括钯,锌,铂,镍或铑,和/或 和/或其氧化物。 该方法特别适用于物理溶剂如冷冻甲醇,聚乙二醇二烷基醚,N-甲基-2-吡咯烷酮,碳酸亚丙酯,N-乙酰基吗啉和N-甲酰基吗啉的共混物,1,3-二甲基-3,4, 特别是包含氨作为污染物的气体混合物。

    Ethylene Separation
    9.
    发明申请
    Ethylene Separation 有权
    乙烯分离

    公开(公告)号:US20120095181A1

    公开(公告)日:2012-04-19

    申请号:US12905966

    申请日:2010-10-15

    IPC分类号: C08F2/38 B01J19/00

    摘要: A polyethylene production process, comprising contacting ethylene and a polymerization catalyst under suitable reaction conditions to yield a polymerization product stream, separating a light gas stream from the polymerization product stream, wherein the light gas stream comprises ethane and unreacted ethylene, contacting the light gas stream with an absorption solvent system, wherein at least a portion of the ethylene from the light gas stream is absorbed by the absorption solvent system, removing unabsorbed gases of the light gas stream from contact with the absorption solvent system to form a waste gas stream, and recovering ethylene from the absorption solvent system.

    摘要翻译: 一种聚乙烯生产方法,包括在合适的反应条件下使乙烯和聚合催化剂接触以产生聚合产物流,从聚合产物流中分离轻质气体流,其中轻质气流包含乙烷和未反应的乙烯,使轻质气体流 其中吸收溶剂系统,其中来自轻质气体流的乙烯的至少一部分被吸收溶剂系统吸收,除去轻质气体流的未吸收气体与吸收溶剂系统接触以形成废气流,以及 从吸收溶剂体系中回收乙烯。