Methods of removing halogen from non-zeolitic molecular sieve catalysts
    2.
    发明授权
    Methods of removing halogen from non-zeolitic molecular sieve catalysts 有权
    从非沸石分子筛催化剂中除去卤素的方法

    公开(公告)号:US06440894B1

    公开(公告)日:2002-08-27

    申请号:US09891674

    申请日:2001-06-25

    IPC分类号: B01J2714

    摘要: Methods of calcining non-zeolitic molecular sieve catalyst to remove most, if not nearly all, of halogen contained in the catalyst. One method includes heating the catalyst in a low moisture environment, followed by contacting the heated catalyst with air and/or steam. Another method includes steam-treating the catalyst at a temperature from 400° C. to 1000° C. The calcination methods provides a catalyst that contains from about 10 ppmw to about 600 ppmw chlorine, preferably 10 ppmw to about 200 ppmw chlorine, more preferably 10 ppmw to about 80 ppmw chlorine.

    摘要翻译: 煅烧非沸石分子筛催化剂以除去催化剂中所含的大部分(如果不是几乎全部)卤素的方法。 一种方法包括在低湿度环境中加热催化剂,然后将加热的催化剂与空气和/或蒸汽接触。 另一种方法包括在400℃至1000℃的温度下对催化剂进行蒸汽处理。煅烧方法提供了一种催化剂,其含有约10ppmw至约600ppmw的氯,优选含有10ppmw至约200ppmw的氯,更优选 10ppmw至约80ppmw氯。

    Synthesis of Chabazite-Containing Molecular Sieves and Their Use in the Conversion of Oxygenates to Olefins
    4.
    发明申请
    Synthesis of Chabazite-Containing Molecular Sieves and Their Use in the Conversion of Oxygenates to Olefins 有权
    含有含异噻唑啉的分子筛的合成及其在烯烃转化中的应用

    公开(公告)号:US20120316312A1

    公开(公告)日:2012-12-13

    申请号:US13589289

    申请日:2012-08-20

    摘要: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90+% CHA framework-type character, a reaction mixture is prepared comprising sources of water, silicon, aluminum, and phosphorus, as well as an organic template. In one aspect, the reaction mixture is heated at more than 10° C./hour to a crystallization temperature and is retained at the crystallization temperature or within the crystallization temperature range for a crystallization time from 16 hours to 350 hours to produce the silicoaluminophosphate molecular sieve. In another aspect, the reaction mixture is heated at less than 10° C./hour to a crystallization temperature from about 150° C. to about 225° C. and is then retained there for less than 10 hours to produce the silicoaluminophosphate molecular sieve. The molecular sieve can then be recovered from the reaction mixture and, preferably, used in a hydrocarbon conversion process, such as oxygenates to olefins.

    摘要翻译: 在合成具有90 + CHA框架型特征的硅铝磷酸盐分子筛的方法中,制备包含水,硅,铝和磷源以及有机模板的反应混合物。 在一个方面,将反应混合物在大于10℃/小时加热至结晶温度,并保持在结晶温度或结晶温度范围内,结晶时间为16小时至350小时,以产生硅铝磷酸盐分子 筛。 在另一方面,将反应混合物在小于10℃/小时加热至约150℃至约225℃的结晶温度,然后将其保留在少于10小时以产生硅铝磷酸盐分子筛 。 然后可以从反应混合物中回收分子筛,并且优选用于烃转化方法,例如含氧化合物至烯烃。