Why increasing the reaction temperature did not improve the purity of the product
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In the residue hydrogenation unit, once the reaction temperature reaches 376°C. When the temperature is increased further, the rate of carbon residue removal in the product does not increase anymore; what is the reason for this?
A higher temperature does not necessarily lead to better decarburization; it depends on the temperature at which the catalyst is used. At certain temperatures, there are more side reactions, which makes carbon formation more likely. Therefore, a higher temperature does not always result in a decrease in the residue carbon level