Laboratory Studies of Catalysis of CO to Organics on Grain Analogs
Laboratory Studies of Catalysis of CO to Organics on Grain Analogs
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CO 催化谷物类似物有机物的实验室研究
DOI：
10.1006/icar.2000.6350
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发表时间：
2000
期刊：
影响因子：
3.2
通讯作者：
T. Smith
中科院分区：
文献类型：
--
作者：
R. Ferrante;M. Moore;J. Nuth;T. Smith
利用真实的宇宙颗粒类似物掺铁硅酸盐作为费托型催化剂，进行了模拟天体物理环境下H2和CO非均相转化为简单烃的实验。在470-670 K温度范围内，以H2/CO = 2 ~ 100的混合气为反应气体，对催化剂进行了研究。总气压接近0.5巴。在3小时的时间内实现了几个百分点的最大转化率。主要产物为甲烷、乙烷、乙烯、二氧化碳和水。产物经红外光谱鉴定。
Abstract Experiments simulating heterogeneous conversion of H 2 and CO into simple hydrocarbons in astrophysical environments have been performed, utilizing realistic cosmic grain analogs of Fe-doped silicates as Fischer–Tropsch-Type catalysts. Catalysis was studied for temperatures from 470–670 K and reactant gas mixtures of H 2 /CO with a ratio of 2–100. The total gas pressure was near 0.5 bar. Maximum conversion rates of a few percentage points were achieved over a 3-h time period. Major products were methane, ethane, ethylene, carbon dioxide, and water. Products were identified by IR spectroscopy.