SYNTHESIS OF OLEFINS FROM OXYGEN-FREE DIRECT CONVERSION OF METHANE AND CATALYSTS THEREOF
    1.
    发明申请
    SYNTHESIS OF OLEFINS FROM OXYGEN-FREE DIRECT CONVERSION OF METHANE AND CATALYSTS THEREOF 有权
    甲醇及其催化剂的无氧直接转化烯烃的合成

    公开(公告)号:US20140336432A1

    公开(公告)日:2014-11-13

    申请号:US14003551

    申请日:2013-07-24

    摘要: The present invention is related to the preparation of a metal lattice-doping catalyst in an amorphous molten state, and the process of catalyzing methane to make olefins, aromatics, and hydrogen using the catalyst under oxygen-free, continuous flowing conditions. Such a process has little coke deposition and realizes atom-economic conversion. Under the conditions encountered in a fixed bed reactor (i.e. reaction temperature: 750˜1200° C.; reaction pressure: atmospheric pressure; the weight hourly space velocity of feed gas: 1000˜30000 ml/g/h; and fixed bed), conversion of methane is 8-50%. The selectivity of olefins is 30˜90%. And selectivity of aromatics is 10˜70%. There is no coking. The reaction process has many advantages, including a long catalyst life (>100 hrs), high stability of redox and hydrothermal properties under high temperature, high selectivity towards target products, zero coke deposition, easy separation of products, good reproducibility, safe and reliable operation, etc., all of which are very desirable for industrial application.

    摘要翻译: 本发明涉及无定形熔融状态的金属晶格掺杂催化剂的制备,以及使用催化剂在无氧,连续流动条件下催化甲烷制备烯烃,芳族化合物和氢气的方法。 这种过程几乎没有焦炭沉积并实现原子经济转化。 在固定床反应器(即反应温度:750〜1200℃;反应压力:大气压;进料气体的重时空速:1000〜30000ml / g / h;固定床)的条件下, 甲烷转化率为8-50%。 烯烃的选择性为30〜90%。 芳烃的选择性为10〜70%。 没有焦化。 反应过程具有催化剂寿命长(> 100小时),高温下氧化还原稳定性和水热性能好,靶产物选择性高,无焦炭沉积,易分离产物,重现性好,安全可靠的优点 操作等,这些都非常适合工业应用。