煅烧温度对不同石油焦煅后焦性能的影响

摘要

In this paper,four types of petroleum coke were calcined at 1050 ℃,1100 ℃,1150 ℃,1200 ℃,1250 ℃ and 1300 ℃ respectively for studying the effects of calcining temperature and impurity elements on the properties of calcined coke.The results showed that the recovery efficiency and resistivity of calcined coke decreased as the calcining temperature increased,while the real density increased as the calcining temperature increased.Petroleum coke with low ash and volatile contents were beneficial to obtain calcined coke with low resistivity.The presence of Ca and Na elements had strong catalysis for CO2 reactivity of calcined coke,while the presence of S element had suppressed the catalysis.The presence of V element had strong catalysis for air reactivity of calcined coke.%对四种不同石油焦原料分别在1050、1100、1150、1200、1250、1300℃下进行煅烧处理,研究煅烧温度和杂质元素对煅后焦性能的影响.结果表明,随着煅烧温度的增加,煅后焦的实收率和电阻率降低,真密度升高;低灰分、低挥发分石油焦有利于获得低电阻率的煅后焦;杂质元素Ca和Na对煅后焦CO2反应性有强烈的催化作用,而S元素的存在可有效抑制Ca和Na元素对CO2反应性的催化作用;杂质元素V对煅后焦的空气反应性有极大的催化作用.