Process for neutralization of petroleum acids
    1.
    发明授权
    Process for neutralization of petroleum acids 失效
    中和石油酸的工艺

    公开(公告)号:US5683626A

    公开(公告)日:1997-11-04

    申请号:US519555

    申请日:1995-08-25

    IPC分类号: C10G19/073 C09K3/00 C09K15/00

    CPC分类号: C10G19/073 Y10S507/939

    摘要: The invention relates to a process for treating naphthenic acid--containing whole crudes or fractions thereof to reduce or eliminate their acidity by contacting the acidic whole crude or fraction at a temperature of from about 50.degree. C. to 350.degree. C. with a neutralizing amount of tetraalkylammonium hydroxide, preferably tetramethyl-ammonium hydroxide. The process has the additional benefits of reducing materials handling problems associated with treating oils using liquid solvents and in reducing emulsion formation.

    摘要翻译: 本发明涉及一种用于处理含环烷酸的整个原油或其馏分以通过使酸性全部原料或馏分在约50℃至350℃的温度下以中和量接触来降低或消除其酸度的方法 的四烷基氢氧化铵,优选四甲基氢氧化铵。 该方法具有减少与使用液体溶剂处理油和减少乳液形成相关的材料处理问题的附加益处。

    Process for removing acid gases using a basic salt activated with a
non-sterically hindered diamine
    6.
    发明授权
    Process for removing acid gases using a basic salt activated with a non-sterically hindered diamine 失效
    用非位阻二胺活化的碱性盐除去酸性气体的方法

    公开(公告)号:US4376101A

    公开(公告)日:1983-03-08

    申请号:US321059

    申请日:1981-11-13

    CPC分类号: B01D53/1493 Y02C10/06

    摘要: Acidic gases containing carbon dioxide are removed from a normally gaseous mixture by absorbing CO.sub.2 from the gaseous mixture with an aqueous solution comprising a basic alkali metal salt or hydroxide and an activator or promoter system for the salt or hydroxide which contains (i) at least one non-sterically hindered diamine defined as having both a primary and a tertiary amino moiety wherein the primary amino moiety is attached to a primary carbon atom, and (ii) an amino acid, and desorbing at least partially the absorbed CO.sub.2 from the aqueous solution.

    摘要翻译: 通过用包含碱性碱金属盐或氢氧化物的水溶液和用于盐或氢氧化物的活化剂或助催化剂体系的水溶液从气态混合物中吸收二氧化碳,从常规气体混合物中除去含二氧化碳的酸性气体,其含有(i)至少一种 定义为具有伯氨基和叔氨基部分的非位阻二胺,其中伯氨基部分连接到伯碳原子上,和(ii)氨基酸,并且至少部分地从水溶液中解吸所吸收的CO 2。

    Process and amine-solvent absorbent for removing acidic gases from
gaseous mixtures
    7.
    发明授权
    Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures 失效
    用于从气体混合物中除去酸性气体的工艺和胺 - 溶剂吸收剂

    公开(公告)号:US4240922A

    公开(公告)日:1980-12-23

    申请号:US835811

    申请日:1977-09-22

    IPC分类号: B01D53/14 B01D53/52 C09K3/00

    CPC分类号: B01D53/1493 B01D53/526

    摘要: Acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an amine-solvent liquid absorbent comprising (i) an amine mixture comprised of at least about 50 mol % of a sterically hindered amine and at least about 10 mol % of a tertiary amino alcohol, wherein said sterically hindered amine contains at least one secondary amino group which is part of a ring and is attached to either a secondary or tertiary carbon atom or a primary amino group attached to a tertiary carbon atom, and (ii) a solvent for said amine mixture which is also a physical absorbent for said acidic gases. The liquid absorbent may also include up to about 35 weight percent water. The coaction of the sterically hindered amine and the tertiary amino alcohol in conjunction with the solvent provides an increase in the amount of CO.sub.2 containing acidic gases absorbed compared to the use of the same sterically hindered amines alone and lowers the heat of reaction.

    摘要翻译: 酸性气体通过包括将常规气态混合物与胺溶剂液体吸收剂接触的方法基本上从常规气体混合物中除去,该胺溶剂液体吸收剂包含(i)由至少约50mol%空间位阻胺和至少约 10摩尔%的叔氨基醇,其中所述空间位阻胺含有至少一个作为环的一部分的仲氨基并连接到连接到叔碳原子上的仲或叔碳原子或伯氨基上, 和(ii)所述胺混合物的溶剂,其也是所述酸性气体的物理吸收剂。 液体吸收剂还可包含至多约35重量%的水。 与单独使用相同的空间位阻胺相比,空间位阻胺和叔氨基醇与溶剂的共同作用与吸收的含CO 2的量相比增加了,降低了反应热。