Chevron Dewaxing by Hydrocracking

FIGURE 10.10 Mobil lube dewaxing of heavy neutral raffinate yield versus lube pour point (°F). 

Source K. W. Smith, W. C. Starr, and N. Y. Chen, New Process Dewaxes Lube Base Stocks, Oil and Gas Journal May 26 75-85 (1980). With permission. 

In spite of the fact that Chevron chose not to use their dewaxing catalyst for their heavy stream, in an interesting application they did employ the same (or very similar) catalyst to dehaze the heavy dewaxed oil when pinholes or tears in the filter fabric caused leakage of wax into the solvent dewaxed oil. The refinery s 

FIGURE 10.11 Mobil lube dewaxing heavy neutral raffinate—dewaxed lube oil VI versus pour point (°F). 

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