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    • 7. 发明申请
    • Selective CO methanation catalysis
    • 选择性CO甲烷化催化
    • US20070253893A1
    • 2007-11-01
    • US11413129
    • 2006-04-26
    • Robert DagleYong WangGuanguang Xia
    • Robert DagleYong WangGuanguang Xia
    • C01B3/02
    • C01B3/586B01J21/04B01J23/462B01J35/002B01J35/006B01J35/1019B01J2219/00781C01B2203/0445C01B2203/047
    • Carbon monoxide (CO) is selectively reacted with hydrogen (H2) over a ruthenium (Ru) on alumina catalyst at a temperature of about 210 to about 290° C. To be a viable option for micro catalytic fuel processing devices, highly active, selective, and stable catalysts must be demonstrated with as large a temperature window for feasible operation as possible. We have studied the effects of metal loading, preparation method, pretreatment conditions, and choice of support on the performance of Ru-based catalysts for such applications. Catalyst testing results and catalyst characterization using XRD and BET are discussed. In one example, operating at a gas hourly space velocity (GHSV) of 13,500 hr−1, a 3% Ru/Al2O3 catalyst yielded CO outputs less than 100 ppm in a temperature range from 240° C. to 285° C., while not exceeding a hydrogen consumption of 10%. This catalyst was further successfully demonstrated in a microchannel device.
    • 在约210至约290℃的温度下,一氧化碳(CO)在氧化钌催化剂上的钌(Ru)上选择性地与氢(H 2 O 2)反应。作为微催化剂的可行选择 燃料处理装置,高活性,选择性和稳定的催化剂必须用尽可能大的温度窗口进行演示,以实现可行的操作。 我们研究了金属负载的影响,制备方法,预处理条件以及对这种应用中Ru基催化剂性能的支持选择。 讨论了使用XRD和BET的催化剂测试结果和催化剂表征。 在一个实施例中,以13,500小时-1的气时空速(GHSV)操作3%Ru / Al 2 O 3 催化剂在240℃至285℃的温度范围内产生小于100ppm的CO输出,而不超过10%的氢消耗。 该催化剂在微通道装置中进一步成功地证明。