Distilled product quantity and quality
As the data presented in Table 2 shows, the concentration and
visual color of distilled ethanol by OAHD and HD were almost
similar. After recovering the same amount of the feed ethanol
(about 80% of available ethanol of the feed), OAHD yielded a
distilled ethanol with almost the same concentration of that of
HD (79.0% ± 4.3 and 82.1% ± 3.7, respectively). In addition, the
concentrations of distilled ethanol by OAHD and by HD had
no significant difference (47.3% ± 3.2 and 50.0% ± 2.6, respectively).
Moreover,the visual appearances (visual color) ofthese
distilled products were similar