PROCESS FOR THE TREATMENT OF WASTE GAS AND UNIT SUITABLE FOR USE THEREIN
    81.
    发明授权
    PROCESS FOR THE TREATMENT OF WASTE GAS AND UNIT SUITABLE FOR USE THEREIN 有权
    处理废气的方法和适用于其中的装置

    公开(公告)号:EP1565252B1

    公开(公告)日:2006-09-13

    申请号:EP03775396.9

    申请日:2003-11-27

    Abstract: The present invention pertains to a process for the treatment of waste gas, preferably engine exhaust gas, in particular diesel or gasoline exhaust gas, wherein the waste gas is contacted with a zeolite Y which has a unit cell size of 24, 17-24.45 Å, a water adsorption capacity (p/p0 = 0.2, T=25°C) of at most 5 wt.%, and a silica-alumina molar ratio of at least 40. The zeolite is used in adsorbent or catalytic applications, with catalytic applications particularly including oxidation., NOx conversion, and NOx trapping. The invention also pertains to a unit for use in this application comprising the specified zeolite. It has been found that a zeolite with the specified properties has a high temperature stability under the conditions prevailing in this application. The use of this specific zeolite in this specific application leads to an adsorbent/catalyst with high activity and long life.

    Abstract translation: 本发明涉及一种处理废气,优选发动机废气,特别是柴油或汽油废气的方法,其中废气与单位晶胞尺寸为24的沸石Y接触 ,至多5重量%的水吸附能力(p / p 0 = 0.2,T = 25℃)和至少40的二氧化硅 - 氧化铝摩尔比。沸石用于吸附或催化应用, 应用特别包括氧化,NOx转化和NOx捕集。 本发明还涉及包含特定沸石的用于本申请的单元。 已经发现,具有特定性质的沸石在本申请中普遍存在的条件下具有高温稳定性。 在该具体应用中使用该特定沸石导致具有高活性和长寿命的吸附剂/催化剂。

    CONTINUOUS PROCESS FOR THE ALKYLATION OF HYDROCARBONS
    84.
    发明公开
    CONTINUOUS PROCESS FOR THE ALKYLATION OF HYDROCARBONS 有权
    连续法烷基化烃

    公开(公告)号:EP1527035A2

    公开(公告)日:2005-05-04

    申请号:EP02743103.0

    申请日:2002-05-23

    CPC classification number: C07C2/58 C07C2523/42 C07C2523/44 Y02P20/584

    Abstract: The present invention relates to a continuous alkylation process wherein an alkylatable compound is reacted with an alkylation agent in the presence of a solid acid alkylation catalyst to form an alkylate and wherein the catalyst is regenerated, said process being performed in an apparatus comprising a series of at least two catalyst-containing reactors (4A,5A) in a zone A and a series of at least two catalyst-containing reactors (4B,5B) in a zone B, in which process (a) the zone A reactors and the zone B reactors cycle back and forth per zone between the alkylation mode and the mild regeneration mode, (b) the alkylation mode comprises introducing an alkylation agent into a first reactor (4A,4B) of the zone through which the alkylatable compound passes, reacting a portion of the alkylatable compound with at least a portion of the alkylation agent to produce an alkylate-containing product stream, and performing this operation at least once more in a downstream reactor (5A,5B) in the same zone employing, instead of said alkylate compound, a stream comprising said alkylate-containing product stream which may or may not have been subjected to a prior intermittent separation during which a portion of the alkylate has been removed, to produce an alkylation mode alkylate-containing effluent, (c) the mild regeneration mode comprises contacting the solid acid alkylation catalyst with hydrogen in each of the at least two reactors of the zone, (d) alkylate is recovered.

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