Table 1. Thermal and catalytic conversion of various biomass-derived model compounds when using an E-cat FCC catalyst and a reaction temperature of 500 °C in a fixed bed laboratory reactor for 60 s. The selectivity is expressed as a distribution in wt% of the hydrocarbon products analysed. SiC was used as inert material in the reactor to simulate thermal cracking, while nr in the table implies not reported values.
Model compound | Thermal or catalytic cracking | Conversion (%) | Yields (wt%) |
|||||||
Hydrocarbons | Oxygenates | H2 | CO2 | CO | H2O | Coke | Unknown | |||
Methanol | SiC | 22.6 | 0.2 | 5.4 | 2.4 | 0.8 | nr | 13.6 | 0.2 | nr |
E-cat | 60.8 | 7.1 | 4.0 | 3.5 | 12.2 | nr | 27.0 | 5.5 | 1.7 | |
Acetic acid | SiC | 45.0 | 10.4 | 5.0 | 17.5 | 8.2 | nr | 3.6 | 0.3 | nr |
E-cat | 50.4 | 4.2 | 5.2 | 6.6 | 22.9 | nr | 9.9 | 1.6 | nr | |
Methyl acetate | SiC | 95.3 | 0.4 | 81.6 | 5.2 | 3.0 | nr | 4.7 | 0.4 | nr |
E-cat | 95.1 | 0.9 | 54.5 | 3.7 | 22.2 | nr | 6.4 | 7.4 | nr | |
Furfural | SiC | 21.6 | 5.3 | 0.7 | 6.7 | 1.1 | nr | 6.8 | 1.0 | nr |
E-cat | 78.2 | 32.1 | 9.0 | 5.7 | 9.6 | 1.8 | 12.8 | 7.2 | nr | |
3-Methyl-2-penta-none | SiC | 24.9 | 0.3 | 17.9 | 0.6 | 1.2 | nr | 3.1 | 0.1 | 1.7 |
E-cat | 79.6 | 37.6 | 20.7 | 0.5 | 1.1 | nr | 13.7 | 5.9 | nr | |
2-Hidroxy-3-methyl-cyclopentenone | SiC | 37.7 | 5.0 | 14.4 | 3.7 | 1.9 | nr | 10.0 | 0.7 | 2.0 |
E-cat | 84.5 | 14.0 | 9.4 | 8.1 | 35.7 | 1.2 | 2.3 | 12.8 | 1.0 | |
Phenol | SiC | 8.2 | 0.2 | nr | 1.1 | 4.0 | nr | 2.8 | 0.1 | nr |
E-cat | 54.9 | 34.9 | 2.0 | 1.6 | 4.0 | nr | 8.0 | 4.4 | nr | |
Syringol | SiC | 56.7 | 0.4 | 39.0 | 3.0 | 7.5 | nr | 6.0 | 0.8 | nr |
E-cat | 75.0 | 2.1 | 32.5 | 4.1 | 22.9 | nr | 4.9 | 8.5 | nr | |
Trimethoxy-benzene | SiC | 97.1 | 57.8 | 3.4 | 2.3 | 32.9 | 0.3 | nr | 0.4 | nr |
E-cat | 95.7 | 47.1 | 0.2 | 2.3 | 29.8 | 0.3 | nr | 16.0 | nr |