Fischer-tropsch catalysts containing iron or cobalt selective towards higher hydrocarbons
    9.
    发明授权
    Fischer-tropsch catalysts containing iron or cobalt selective towards higher hydrocarbons 有权
    含有对高级烃选择性的铁或钴的费 - 托催化剂

    公开(公告)号:US08987160B2

    公开(公告)日:2015-03-24

    申请号:US13072683

    申请日:2011-03-26

    摘要: Cryptomelane-type manganese oxide octahedral molecular sieves (OMS-2) supported Fe and Co catalysts are utilized in a method for producing hydrocarbons by a Fischer-Tropsch mechanism. The hydrocarbon producing method includes providing a catalyst of a manganese oxide-based octahedral molecular sieve nanofibers with an active catalyst component of at least one of iron, cobalt, nickel, copper, manganese, vanadium, zinc, and mixtures thereof, and further containing an alkali metal. The formation of iron carbides and cobalt carbides by exposing the catalyst to conditions sufficient to form those carbides is also taught. After the catalyst has been appropriately treated, a carbon source and a hydrogen source are provided and contacted with the catalyst to thereby form a hydrocarbon containing product. The catalyst have high catalytic activity and selectivity (75%) for C2+ hydrocarbons in both CO hydrogenation and CO2 hydrogenation. Highly selective syntheses of high value jet fuel, C2-C6 alkenes, C2-C6 carboxylic acids; α-hydroxylic acids and their derivatives have been realized by tuning the oxidation ability of OMS-2 supports and by doping with Cu2+ ions.

    摘要翻译: 在通过费 - 托机制生产烃的方法中,使用了Cryportelane型锰氧化物八面体分子筛(OMS-2)负载的Fe和Co催化剂。 烃生产方法包括提供一种氧化锰基八面体分子筛纳米纤维的催化剂,其具有铁,钴,镍,铜,锰,钒,锌及其混合物中的至少一种的活性催化剂组分,并且还含有 碱金属。 还教导了通过将催化剂暴露于足以形成这些碳化物的条件来形成碳化铁和碳化钴。 在催化剂被适当处理之后,提供碳源和氢源并与催化剂接触,从而形成含烃产品。 该催化剂在CO氢化和二氧化碳加氢过程中对于C2 +烃具有较高的催化活性和选择性(75%)。 高选择性合成高价值喷气燃料,C2-C6烯烃,C2-C6羧酸; 通过调节OMS-2载体的氧化能力和掺杂Cu2 +离子已经实现了α-羟基酸及其衍生物。