We actually use the fuel for the process. Their process is creating a heavy fuel oil that works for marine vessels.
我们实际上会用燃料来进行这个流程。这个流程会产生重油,用于海洋船舶。
Geo History
Finally, the thick, high-sulfur residue is heated to above 450 degrees Celsius to form heavy fuel oil used by ships, and to obtain bitumen used for road construction and roofing.