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    Oxygenate to olefin process
    24.
    发明授权
    Oxygenate to olefin process 有权
    氧化烯到烯烃工艺

    公开(公告)号：US06965057B2

    公开(公告)日：2005-11-15

    申请号：US10807818

    申请日：2004-03-24

    Applicant: James H. Beech, Jr. ,  Cor F. Van Egmond ,  Teng Xu ,  James R. Lattner

    Inventor： James H. Beech, Jr. ,  Cor F. Van Egmond ,  Teng Xu ,  James R. Lattner

    IPC: B01J20/34 ,  B01J38/30 ,  B01J38/32 ,  C07C1/00 ,  C07C1/20 ,  C07C1/207 ,  C10G3/00

    CPC classification number: C07C1/20 ,  B01J38/30 ,  B01J38/32 ,  C10G3/49 ,  C10G3/62 ,  C10G2300/4093 ,  C10G2300/708 ,  C10G2300/802 ,  C10G2300/805 ,  C10G2400/20 ,  Y02P20/584 ,  Y02P30/42 ,  C07C11/02

    Abstract: The invention relates to a process for converting an oxygenate feedstock into an olefin product stream comprising (a) contacting an oxygenate feedstock with a molecular sieve catalyst in a reactor under conditions effective to convert the feedstock into an olefin product stream and to form carbonaceous deposits on the catalyst; (b) contacting at least a portion of the catalyst having said carbonaceous deposits with an oxygen containing gas under conditions effective to obtain a regenerated catalyst having a reduced carbonaceous deposit level and having an increased molecular oxygen content; (c) removing at least 60% by volume of said molecular oxygen from the regenerated catalyst based upon the total volume of molecular oxygen; (d) returning said regenerated catalyst to said reactor; and (e) repeating steps (a)–(d).

    Abstract translation: 本发明涉及一种将含氧化合物原料转化成烯烃产物流的方法，该方法包括（a）在有效将原料转化成烯烃产物流并形成碳质沉积物的条件下，使反应器中的含氧化合物原料与分子筛催化剂接触 催化剂; （b）在有效获得具有降低的碳沉积物水平并且具有增加的分子氧含量的再生催化剂的条件下使至少一部分具有所述碳质沉积物的催化剂与含氧气体接触; （c）基于分子氧的总体积从再生催化剂中除去至少60体积％的所述分子氧; （d）将所述再生催化剂返回到所述反应器; 和（e）重复步骤（a） - （d）。

    Catalyst pretreatment with C4-C7 olefins in an oxygenate to olefins reaction system
    26.
    发明申请
    Catalyst pretreatment with C4-C7 olefins in an oxygenate to olefins reaction system 失效
    催化剂在含氧化合物到烯烃反应体系中用C4-C7烯烃预处理

    公开(公告)号：US20050101816A1

    公开(公告)日：2005-05-12

    申请号：US10712952

    申请日：2003-11-12

    Applicant: Teng Xu ,  Nicolas Coute ,  Kenneth Clem ,  Keith Kuechler

    Inventor： Teng Xu ,  Nicolas Coute ,  Kenneth Clem ,  Keith Kuechler

    IPC: B01J29/85 ,  C07C1/20 ,  C07C1/00

    CPC classification number: C07C1/20 ,  B01J29/85 ,  C07C2529/84 ,  C07C2529/85 ,  Y02P30/42 ,  C07C11/02 ,  C07C11/08

    Abstract: This invention relates to processes for converting oxygenates to olefins that include a step of pretreating molecular sieve used in the conversion reaction with a C4-C7 olefin composition, which contains one or more C4-C7 olefins. Fresh or regenerated molecular sieve, which is low in carbon content, is contacted or pretreated with the olefin composition to form a hydrocarbon co-catalyst within the pore structure of the molecular sieve, and the pretreated molecular sieve containing the co-catalyst is used to convert oxygenate to a lighter olefin product.

    Abstract translation: 本发明涉及将含氧化合物转化为烯烃的方法，其包括用C 4 -C 7烯烃组合物预处理转化反应中使用的分子筛的步骤，其中含有一个 或更多的C 4 -C 7烯烃。 碳含量低的新鲜或再生分子筛与烯烃组合物接触或预处理，以在分子筛的孔结构内形成烃助催化剂，并将含有助催化剂的预处理分子筛用于 将含氧化合物转化为较轻的烯烃产物。

    Catalyst pretreatment in an oxygenate to olefins reaction system
    27.
    发明授权
    Catalyst pretreatment in an oxygenate to olefins reaction system 有权
    催化剂在含氧化合物到烯烃反应体系中的预处理

    公开(公告)号：US06734330B1

    公开(公告)日：2004-05-11

    申请号：US09615545

    申请日：2000-07-13

    Applicant: Teng Xu ,  Jeffrey L. White

    Inventor： Teng Xu ,  Jeffrey L. White

    IPC: C07C2207

    CPC classification number: B01J37/084 ,  B01J29/85 ,  B01J2229/14 ,  B01J2229/34 ,  C07C1/20 ,  C07C2529/85 ,  Y02P30/42 ,  C07C11/02

    Abstract: Disclosed is a crystalline silicoaluminophosphate molecular sieve comprising a porous framework structure and at least one single ring aromatic compound within the porous framework structure. The silicoaluminophosphate molecular sieve is used to convert oxygenate feed stock to olefin product. The olefin product is high in ethylene and propylene content, with a high selectivity to ethylene. The silicoaluminophosphate molecular sieve can be included with a binder and other materials in finished catalyst form.

    Abstract translation: 公开了一种结晶硅铝磷酸盐分子筛，其在多孔骨架结构内包含多孔骨架结构和至少一个单环芳族化合物。 硅铝磷酸盐分子筛用于将含氧化合物原料转化为烯烃产物。 烯烃产物的乙烯和丙烯含量高，对乙烯具有高选择性。 硅铝磷酸盐分子筛可以与粘合剂和成品催化剂形式的其他材料一起使用。

    Process for making ethylene and propylene
    28.
    发明授权
    Process for making ethylene and propylene 失效
    制备乙烯和丙烯的方法

    公开(公告)号：US06518475B2

    公开(公告)日：2003-02-11

    申请号：US09785409

    申请日：2001-02-16

    Applicant: Shun C. Fung ,  Chunshe Cao ,  Teng Xu

    Inventor： Shun C. Fung ,  Chunshe Cao ,  Teng Xu

    IPC: C07C100

    CPC classification number: C07C1/20 ,  C07C2529/85 ,  Y02P20/52 ,  Y02P20/584 ,  Y02P30/42 ,  Y10S585/904 ,  C07C11/04 ,  C07C11/06

    Abstract: A process for increasing the ethylene selectivity of a silicoaluminophosphate molecular sieve catalyst by using acetone in an oxygenate conversion process. Acetone can be added with the oxygenate feed at a concentration from about 1% to about 15% by weight, preferably about 1% to about 8% by weight, more preferably about 2% to about 5% by weight. Alternatively, acetone can be added as a pre-feed to the molecular sieve catalyst, particularly regenerated and fresh catalyst, in an contact zone. The pre-feed contacted catalyst is then directed to an oxygenate conversion zone. The acetone concentration in the pre-feed is from about 1% to about 99% by weight, preferably about 30% to about 70% by weight.

    Abstract translation: 一种通过在含氧化合物转化方法中使用丙酮来提高硅铝磷酸盐分子筛催化剂的乙烯选择性的方法。 丙酮可以以约1％至约15％重量，优选约1％至约8％重量，更优选约2％至约5％重量的浓度加入含氧化合物进料。 或者，可以在接触区中将丙酮作为预进料加入到分子筛催化剂，特别是再生和新鲜的催化剂中。 然后将预进料接触的催化剂导入含氧化合物转化区。 预进料中的丙酮浓度为约1重量％至约99重量％，优选约30重量％至约70重量％。

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