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在150℃和未熟生油岩矿物的催化下,使十八烷酸脱羧生烃,用测定反应放出的CO_2量直接评价了我国7个油田未熟油岩和其中相应天然矿物的催化脱羧活性.发现在低温下生油岩矿物的催化活性主要与矿物的类型有关.一般碳酸盐的催化活性比粘土高.碳酸盐的催化活性随铁含量的增加而增大.
Catalytic decarboxylation of octadecanoic acid at 150 ℃ and catalysis of immature oil rock minerals directly determined the catalytic decarboxylation activity of the immature oil rock and the corresponding natural minerals in the seven oilfields in China by measuring the amount of CO_2 released from the reaction. The catalytic activity of oil-bearing rock minerals at low temperature is mainly related to the type of minerals, and generally the catalytic activity of carbonate is higher than that of clay.The catalytic activity of carbonate increases with the increase of iron content.