fig2

Figure 2. (A) Overall reaction scheme for the hydrocracking of octane to paraffins with olefin intermediates diffusing between the metal and Brønsted acid sites; (B) Proposed isomerization cycle in the hydrocracking of LDPE (top) and effect of the metal-acid balance on the structure of the residual polyethylene chains (bottom); (C) Ratio of the C₂₁₊ to C_4-6 products (top) and fraction of normal, monobranched, and dibranched isomers in extractables (bottom) over LDPE hydrocracking over catalysts with different metal-acid balances. These figures are quoted with permission from Vance et al.^[61]. LDPE: Low-density polyethylene.