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直接把甲烷转化成为高级烃,可能为世界催化研究实验室所追求的重要目标之一,即轻油制备开辟一条新途径。最近,美国Lawrence Berkeley实验室发现一种新型催化剂,可在常压和中温下,把甲烷转化成C_2烃。选择性几乎达100％。此反应似乎为严格的催化反应,且无CO_2生成,从而排除了气相反应的可能性。现在,每次转化率为10％,在转化中需要水蒸气存在。此新催化剂为Ca、Ni、K的混合氧化物体系,需要很仔细地制备,在制备中微小的
The direct conversion of methane to higher hydrocarbons may open up a new avenue for the preparation of light oil, one of the important goals pursued by the world’s catalytic research laboratory. Recently, the United States Lawrence Berkeley Laboratory found a new type of catalyst that can convert methane to C2 hydrocarbons at atmospheric pressure and at moderate temperatures. Selectivity is almost 100%. This reaction appears to be a rigorous catalytic reaction with no CO 2 formation, thus eliminating the possibility of gas-phase reactions. Now, at 10% conversion, steam is needed for the conversion. This new catalyst is a mixed oxide system of Ca, Ni, K and needs to be carefully prepared in the preparation of tiny