论文部分内容阅读
石油焦是鋁电解槽阳极(不論是自焙阳极或预焙阳极)的一种理想原料。石油焦是用延迟焦化装置制备的(間断低溫操作)。延迟焦化过程中,重质煙油在反应室內裂化成为輕质餾份并焦化。焦化溫度介于700°F到900°F之間。此种延迟焦通常具有90～95％的固定碳,因其质純,故被广泛应用于冶金生产中。近来,有一种以流态焦化法生产的石油焦,这种焦称作“流化焦”,其真比重較之延迟焦要低,杂质含量較高。然而,如适当控制
Petroleum coke is an ideal raw material for the anode of an aluminum cell, whether it be a self-baking anode or a prebaked anode. Petroleum coke is made with a delayed coker (intermittent cryogenic operation). During the delayed coking process, heavy-duty tobacco oil cracked into light fractions and coked in the reaction chamber. Coking temperatures range from 700 ° F to 900 ° F. This delayed coke usually has 90 ~ 95% of the fixed carbon, because of its pure, it is widely used in metallurgical production. Recently, there has been a petroleum coke produced by a fluid coking process. This coke is called “fluid coke” and its true specific gravity is lower than that of delayed coke and has a high content of impurities. However, if properly controlled