Liquid Fuel Coal Into Oil Method

There are usually two methods of converting coal into oil, direct liquefaction and indirect liquefaction. Direct liquefaction, also known as "hydrogenation liquefaction", mainly refers to the process of direct catalytic hydrocracking of coal under the action of high temperature and pressure and catalyst, so as to degrade and convert it into liquid oil by hydrogenation; indirect liquefaction of coal is the first The process of gasifying coal to produce raw material gas, which is purified and then undergoes synthesis reaction to generate oil. Direct coal liquefaction is to use chemical methods to add hydrogen to coal molecules to increase its hydrogen-to-carbon atomic ratio. In the process of direct coal liquefaction, catalyst is the key to reduce production cost and reduce the severity of reaction conditions.