conversion temperature  heptane  contact
          1          49       1300        7.5   0.012
          2        50.2       1300          9   0.012
          3        50.5       1300         11  0.0115
          4        48.5       1300       13.5   0.013
          5        47.5       1300         17  0.0135
          6        44.5       1300         23   0.012
          7          28       1200        5.3    0.04
          8        31.5       1200        7.5   0.038
          9        34.5       1200         11   0.032
         10          35       1200       13.5   0.026
         11          38       1200         17   0.034
         12        38.5       1200         23   0.041
         13          15       1100        5.3   0.084
         14          17       1100        7.5   0.098
         15        20.5       1100         11   0.092
         16        29.5       1100         17   0.086