Lynne Wong's PhD thesis

As seen in Section 5.6.4.5, the Hailwood-Horrobin and GAB models describe well the
sorption behaviour of reconstituted cane stalk, dry leaf and green leaf.
The change of m o values of reconstituted cane stalk and dry and green leaves with
temperature as obtained from the GAB, Caurie I and modified BET models is shown in Fig
6.4.
Table 6.1. Parameters of the Caurie I and modified BET sorption models, the coefficient of
determination R 2 , the mean relative deviation modulus P, and the standard errors of the
estimate E s for the isotherms of reconstituted R 570 of two ages and at various temperatures.
Reconstituted Model Parameter 52 weeks 36 weeks
R 570 30 o C 45 o C 55 o C 60 o C 30 o C 45 o C 55 o C 60 o C
Cane stalk Caurie I b 0.1368 0.1551 0.1869 0.1932 0.1405 0.1705 0.1806 0.1792
m o 0.8979 0.8607 0.8769 0.8656 0.9212 0.8869 0.9029 0.9154
R 2 0.9734 0.9767 0.9866 0.9939 0.9628 0.9731 0.9895 0.9747
P 14.01 15.41 8.150 5.748 8.114 9.082 6.873 14.58
E s 2.774 2.923 2.408 2.000 1.046 1.978 1.533 2.622
Modified m o 0.564 0.615 0.632 0.681 0.538 0.589 0.585 0.545
BET b 10000000 9738113 10000000 8725001 20000000 8909343 10000000 20000000
R 2 0.009 0.304 0.602 0.741 0.019 0.411 0.573 0.451
P 42.60 36.05 26.57 24.04 42.26 32.33 28.77 34.50
E s 6.546 6.281 5.245 5.175 6.394 5.784 5.498 8.952
Dry leaf Caurie I b 0.1271 0.1563 0.1700 0.1837 0.1397 0.1536 0.1528 0.1830
m o 0.8635 0.8714 0.8741 0.8435 0.8763 0.8474 0.8695 0.8591
R 2 0.9543 0.9883 0.9809 0.9930 0.9827 0.9670 0.9770 0.9486
P 10.34 7.654 13.41 7.977 7.506 10.51 9.019 21.09
E s 2.386 1.668 3.044 3.765 1.340 1.752 1.964 12.20
Modified m o 0.599 0.614 0.618 0.743 0.602 0.654 0.598 0.774
BET b 8402048 40000000 30000000 20000000 10000000 20000000 10000000 8571450
R 2 - 0.407 0.536 0.801 0.194 0.460 0.339 0.779
P 44.33 35.50 31.60 21.04 40.25 34.38 36.87 26.13
E s 7.705 5.707 5.528 4.105 6.235 5.562 6.346 6.706
Green leaf Caurie I b 0.1450 0.1607 0.1785 0.1753 0.1421 0.1648 0.1711 0.1888
m o 0.8663 0.8447 0.8401 0.8515 0.8910 0.8519 0.8679 0.8078
R 2 0.9637 0.9867 0.9947 0.9903 0.9854 0.9861 0.9871 0.9744
P 12.48 9.387 6.512 6.808 6.691 6.249 10.23 9.299
E s 2.468 2.344 2.418 2.300 1.535 1.625 2.231 7.867
Modified m o 0.604 0.663 0.709 0.689 0.585 0.657 0.631 0.907
BET b 20000000 40000000 20000000 8474309 9600464 30000000 10000000 30000000
R 2 0.159 0.489 0.693 0.696 0.220 0.526 0.559 0.846
P 39.51 33.96 26.96 25.72 40.16 32.54 30.60 25.85
E s 6.592 5.660 4.725 5.501 5.991 5.356 5.326 7.158
Note: m o, b, c and d are constants.
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