Skip to main content

Table 2 Selected ranges for FTIR analysis and the retention times of GC-MS analysis of components of the process

From: Selective phenol methylation to 2,6-dimethylphenol in a fluidized bed of iron-chromium mixed oxide catalyst with o-cresol circulation

Substance Range of FTIR analysis, cm-1 Retention time, min
Water 4200-3800 -
Carbon dioxide 3700-3400 -
Propane 3300-2600 -
Ethane 3100-2800 -
Methane -
Formaldehyde 2900-2500 -
Carbon monoxide 2200-2000 -
Methanol 1500-900 -
Ethylene 1200-900 -
Anisole - 6.90
Phenol see figure 5 7.85
o-cresol see figure 5 8.88
m-cresol see figure 5 9.13
p-cresol see figure 5 9.14
2,6-DMP see figure 5 9.63
2,5-DMP see figure 5 10.06
2,4-DMP see figure 5 10.08
2,3-DMP see figure 5 10.58
2,4,6-TMP see figure 5 10.80
2,3,5-TMP see figure 5 11.64
3,4,5-TMP see figure 5 12.28