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    • 96. 发明申请
    • OXYGENATE CONVERSION USING BORON-CONTAINING MOLECULAR SIEVE CHA
    • 使用含硼分子筛CHA的氧化转化
    • US20090131730A1
    • 2009-05-21
    • US11941699
    • 2007-11-16
    • Lun-Teh YuenStacey I. Zones
    • Lun-Teh YuenStacey I. Zones
    • C07C1/00
    • C07C1/20B01J29/86C07C2529/86Y02P20/52Y02P30/42C07C11/04C07C11/02
    • A process for the production of light olefins from a feedstock comprising an oxygenate or mixture of oxygenates, the process comprising reacting the feedstock at effective conditions over a catalyst comprising boron-containing molecular sieve having the CHA crystal structure and comprising (1) silicon oxide and (2) boron oxide or a combination of boron oxide and aluminum oxide, iron oxide, titanium oxide, gallium oxide and mixtures thereof; and wherein the mole ratio of silicon oxide to boron oxide in said boron-containing molecular sieve is between 15 and 125. A method for production of light olefins, comprising selecting the catalyst and reacting a feedstock comprising an oxygenate or mixture of oxygenates, at effective conditions, over the catalyst. Also, a method for production of light olefins, comprising selecting the catalyst, selecting the oxygenate feedstock, and reacting the feedstock at effective conditions over the catalyst.
    • 一种从包含含氧化合物或含氧化合物的原料生产轻质烯烃的方法,该方法包括在有效条件下使原料反应在包含具有CHA晶体结构的含硼分子筛的催化剂上,并包含(1)氧化硅和 (2)氧化硼或氧化硼和氧化铝的组合,氧化铁,氧化钛,氧化镓及其混合物; 并且其中所述含硼分子筛中的氧化硅与氧化硼的摩尔比为15至125.一种用于制备轻质烯烃的方法,包括选择催化剂并使包含含氧化合物或含氧化合物的混合物的原料在有效 条件,超过催化剂。 另外,生产轻质烯烃的方法,包括选择催化剂,选择含氧化合物原料,并在有效条件下使催化剂与原料反应。
    • 99. 发明申请
    • TREATMENT OF COLD START ENGINE EXHAUST
    • 冷起动发动机排气的处理
    • US20080159936A1
    • 2008-07-03
    • US11961776
    • 2007-12-20
    • Stacey I. ZonesCabral M. WilliamsTecle S. RufaelAllen W. Burton
    • Stacey I. ZonesCabral M. WilliamsTecle S. RufaelAllen W. Burton
    • B01D53/44B01D53/72
    • B01D53/945B01D53/04B01D53/9486B01D2253/104B01D2253/108B01D2255/102B01D2255/1021B01D2255/1023B01D2255/50B01D2259/4143B01J29/70B01J29/7007B01J29/80Y02A50/2324Y02C20/20Y02T10/22
    • The present invention relates to a process for reducing cold start emissions in an exhaust gas stream (such as from an internal combustion engine) by contacting the exhaust stream with a combination of molecular sieves comprising (1) a small pore crystalline molecular sieve or mixture of molecular sieves having pores no larger than 8 membered rings selected from the group consisting of SSZ-13, SSZ-16, SSZ-36, SSZ-39, SSZ-50, SSZ-52 and SSZ-73 molecular sieve and having a mole ratio at least 10 of (a) an oxide of a first tetravalent element to (b) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof and (2) a medium-large pore crystalline molecular sieve having pores at least as large as 10 membered rings selected from the group consisting of SSZ-26, SSZ-33, SSZ-64, zeolite Beta, CIT-1, CIT-6 and ITQ-4 and having a mole ratio of at least 10 of (a) an oxide of a first tetravalent element to (b) an oxide of a trivalent element, pentavalent element, second tetravalent element which is different from said first tetravalent element or mixture thereof.
    • 本发明涉及通过使废气流与分子筛的组合接触来减少废气流(例如来自内燃机)中的冷启动排放的方法,所述分子筛包括(1)小孔结晶分子筛或 具有不大于8元环的分子筛,其选自SSZ-13,SSZ-16,SSZ-36,SSZ-39,SSZ-50,SSZ-52和SSZ-73分子筛,并且具有摩尔比 至少10个(a)第一四价元素的氧化物,(b)三价元素的氧化物,不同于所述第一四价元素或其混合物的五价元素,第二四价元素和(2)中等大小 孔结晶分子筛,其孔至少与选自SSZ-26,SSZ-33,SSZ-64,β沸石,CIT-1,CIT-6和ITQ-4组成的组中的10元环一样大,并具有摩尔 (a)第一四价元素的氧化物的至少10的比例 至(b)不同于所述第一四价元素或其混合物的三价元素的氧化物,五价元素,第二四价元素。