公开(公告)号：EP2166062A4

公开(公告)日：2014-05-14

申请号：EP08740695

申请日：2008-04-15

申请人： NIPPON PETROLEUM REFINING CO

发明人： TANO TAMOTSU ,  OYAMA TAKASHI ,  NAKANISHI KAZUHISA ,  ODA TOSHIYUKI ,  HIGASHI KEIJI

IPC分类号： C10B57/04 ,  C10G45/04

CPC分类号： C10G9/005 ,  C10B57/045 ,  C10G2300/202 ,  C10G2300/206 ,  C10G2300/301 ,  C10G2300/4012

摘要： The present invention provides a process of producing petroleum coke that is high in strength and sufficiently small in thermal expansion coefficient and sufficiently suppressed from puffing. The process comprising coking a feedstock comprising a first heavy oil with 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.