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    • 2. 发明授权
    • Process for producing petroleum coke
    • 生产石油焦的工艺
    • US08137530B2
    • 2012-03-20
    • US12664504
    • 2008-04-15
    • Tamotsu TanoTakashi OyamaKazuhisa NakanishiToshiyuki OdaKeiji Higashi
    • Tamotsu TanoTakashi OyamaKazuhisa NakanishiToshiyuki OdaKeiji Higashi
    • C10B55/00
    • C10G9/005C10B57/045C10G2300/202C10G2300/206C10G2300/301C10G2300/4012
    • A process is provided for producing petroleum coke that is high in strength and sufficiently small in thermal expansion coefficient and sufficiently suppressed from puffing. The process includes coking a feedstock containing a first heavy oil having a sulfur content of 1.0 percent by mass or less, a nitrogen content of 0.5 percent by mass or less, and an aromatic index of 0.1 or greater, produced by hydrodesulfurizing a heavy oil with a sulfur content of 1 percent by mass or more under conditions (1) where the total pressure is 10 MPa or greater and less than 16 MPa and the hydrogen partial pressure is 5 MPa or greater and 16 MPa or less or conditions (2) where the total pressure is 20 MPa or greater and 25 MPa or less and the hydrogen partial pressure is greater than 20 MPa and 25 MPa or less, and a second heavy oil with an aromatic index of 0.3 or greater and an initial boiling point of 150° C. or higher.
    • 提供了一种制造强度高且热膨胀系数足够小并充分抑制膨胀的石油焦炭的方法。 该方法包括:将含有1.0质量%以下的硫含量,0.5质量%以下的氮含量,0.1重量%以上的芳香族指数,通过将重油加氢脱硫而得到的原料, 在总压力为10MPa以上且小于16MPa,氢分压为5MPa以上且16MPa以下的条件(1)下的硫含量为1质量%以上或条件(2) 总压力为20MPa以上且25MPa以下,氢分压大于20MPa,25MPa以下,第二重油的芳香族指数为0.3以上,初始沸点为150℃ C.或更高。