Simplified catalytic dewaxing process flow diagram

Catalytic dewaxing, commonly known as Hydroisomerization dewaxing or isomerization dewaxing, is an advanced catalytic process that converts long-chain normal paraffins (n-paraffins) into branched isoparaffins to reduce the pour point and improve low-temperature flow properties of lubricating base oils and middle distillates. Unlike conventional catalytic cracking-based dewaxing or solvent dewaxing, which physically remove waxy components, hydroisomerization selectively reshapes wax molecules into valuable base oil components, thereby maximizing product yield and quality.

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