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    Process for producing para-xylene
    5.
    发明申请
    Process for producing para-xylene 失效
    生产对二甲苯的方法

    公开(公告)号：US20080071126A1

    公开(公告)日：2008-03-20

    申请号：US11894187

    申请日：2007-08-20

    申请人： John Di-Yi Ou ,  Sebastian C. Reyes ,  Bal K. Kaul ,  Wenyih Frank Lai ,  Brenda A. Raich ,  Charanjit S. Paur

    发明人： John Di-Yi Ou ,  Sebastian C. Reyes ,  Bal K. Kaul ,  Wenyih Frank Lai ,  Brenda A. Raich ,  Charanjit S. Paur

    IPC分类号： C07C15/08

    CPC分类号： C07C7/13 ,  C07C15/08

    摘要： In a process for producing a para-xylene enriched product from a gaseous mixture comprising at least para-xylene, meta-xylene and ortho-xylene, the gaseous mixture is contacted with an adsorbent capable of selectively adsorbing para-xylene and comprising a crystalline molecular sieve having an average crystal size between about 0.5 micron and about 20 microns. The contacting is conducted at a temperature and pressure such that at least part of the para-xylene in the mixture is adsorbed by the adsorbent to produce a para-xylene-depleted effluent stream. The para-xylene is then desorbed from said adsorbent and collected to form a para-xylene enriched stream. The adsorption and desorption steps are repeated for a plurality of cycles, such that the time between successive contacting steps is no more than 10 seconds.

    摘要翻译： 在从至少包含对二甲苯，间二甲苯和邻二甲苯的气体混合物生产对二甲苯富集产物的方法中，气态混合物与能够选择性吸附对二甲苯并且包含结晶分子 平均晶体尺寸在约0.5微米至约20微米之间的筛子。 接触在温度和压力下进行，使得混合物中的至少部分对二甲苯被吸附剂吸附，以产生对二甲苯贫乏的流出物流。 然后将对二甲苯从所述吸附剂中解吸并收集以形成对二甲苯富集流。 吸附和解吸步骤重复多个循环，使得连续接触步骤之间的时间不超过10秒。

    High silica chabazite, its synthesis and its use in the conversion of oxygenates to olefins
    6.
    发明授权
    High silica chabazite, its synthesis and its use in the conversion of oxygenates to olefins 有权
    高二氧化硅菱沸石，其合成及其在含氧化合物转化为烯烃的应用

    公开(公告)号：US07148172B2

    公开(公告)日：2006-12-12

    申请号：US10370923

    申请日：2003-02-20

    申请人： Karl G. Strohmaier ,  Sebastian C. Reyes ,  Doron Levin

    发明人： Karl G. Strohmaier ,  Sebastian C. Reyes ,  Doron Levin

    IPC分类号： B01J29/06

    CPC分类号： B01J29/7015 ,  C01B39/46 ,  C01B39/48 ,  C07C1/20 ,  Y02P30/42 ,  C07C11/02

    摘要： A porous crystalline material is described having the chabazite framework type and having a composition involving the molar relationship: X2O3:(n)YO2, wherein X is a trivalent element, such as aluminum, boron, iron, indium, and/or gallium; Y is a tetravalent element such as silicon, tin, titanium and/or germanium; and n is greater than 100 and typically greater than 200, such as about 300 to about 4000, for example from about 400 to about 1200. The material is synthesized in a fluoride medium and exhibits activity and selectivity in the conversion of methanol to lower olefins, especially ethylene and propylene.

    摘要翻译： 描述了具有菱沸石骨架类型并且具有摩尔关系的组成的多孔结晶材料：<？in-line-formula description =“In-line Formulas”end =“lead”？> X 2 >○3（n）YO 2，<？in-line-formula description =“In-line Formulas”end =“tail”？>其中X是 三价元素，例如铝，硼，铁，铟和/或镓; Y是四价元素，例如硅，锡，钛和/或锗; 并且n大于100，通常大于200，例如约300至约4000，例如约400至约1200.该物质在氟化物介质中合成，并且在甲醇转化为低级烯烃中表现出活性和选择性 ，特别是乙烯和丙烯。