Table 3. Comparison of Productivity Metrics between Batch and Flow Experiments.
entry | reaction | temperature (°C) | substrate/cat ratio (mol/mol) | observed rate (mM/h) | normalized rate (mM/h·gcat) | TOF (h–1)c | productivity (mmol/(L·h) |
---|---|---|---|---|---|---|---|
1 | DMC batch | 100 | 71 | 2a | 7 | 0.020 | 0.89 |
2 | DMC batch | 120 | 71 | 11a | 36 | 0.063 | 2.76 |
3 | DMC batch | 140 | 71 | 58a | 195 | 0.231 | 10.1 |
4 | DEC batch | 140 | 49 | 27a | 72 | 0.436 | 3.78 |
5 | DMC flow | 100 | 12 | 87b | 290 | 0.059 | 18.6 |
6 | DMC flow | 120 | 12 | 205b | 683 | 0.125 | 39.3 |
7 | DMC flow | 140 | 12 | 417b | 1390 | 0.279 | 87.6 |
8 | DEC flow | 140 | 8 | 193b | 644 | 0.100 | 20.5 |
Observed rate calculated from tangent at t = 0 of the fitted curve.
Observed rate calculated as concentration change in 4.2 min residence time.
TOF calculated from total moles of product formed/total moles of catalyst per time.