Methods of removing halogen from non-zeolitic molecular sieve catalysts
    1.
    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。