Utilization of tire pyrolysis oil
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There is an increasing amount of used tires, and attention is being paid to their utilization; one method for this purpose is the pyrolysis of used tires. The use of the oil obtained from such pyrolysis is also a topic of discussion and research； Can this be used as a hydrogenation feedstock?! (Hydrogenation for producing gasoline and diesel)
This post was last edited by qugd on 2022-10-17 at 09:35. The oil produced from the pyrolysis of waste rubber contains high levels of olefins and dienes; direct hydrogenation would cause rapid carbon deposition and coking on the catalysts. To date, there are no reports of any mature processes for direct hydrogenation being in use. I have previously been involved in the treatment of oils obtained from the pyrolysis of waste plastics; the pyrolysis products contain high levels of olefins and dienes, resulting in very poor stability. Direct hydrogenation is also a difficult method for processing these substances, as the process conditions and catalyst selection require strict specifications. The degree of unsaturation in rubber pyrolysis oil is definitely higher than that in plastic pyrolysis oil. At the same time, the sulfur content is also quite high.
Another issue is that the quantity is too small, resulting in high costs for hydrogen addition equipment.