Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 List of the Arrhenius’ activation energies (E _a), Arrhenius’ frequency factors (A), and reaction rate constants (k) obtained in this report

From: Effect of type of aromatic nucleus in lignin on the rate of the β-O-4 bond cleavage during alkaline pulping process

	GH		G′H	S′H	S′G	S′S	G′H(Cl)
	erythro	threo	G′H	S′H	S′G	S′S	G′H(Cl)
E ^a_a	133	140	120	118	117	106	–
A ^b	265	509	5.57	4.96	6.12	0.730	–
k ^c
130 °C	1.34	0.360	1.56	2.14	4.52	13.2	–
140 °C	3.51	0.985	3.70	5.04	10.5	28.3	–
150 °C	8.80	2.58	8.46	11.4	23.5	58.8	–
160 °C	21.1	6.48	18.6	24.8	50.5	118	–
170 °C	48.8	15.6	39.5	52.2	105	229	–

^aUnit: ×kJ mol⁻¹
^bUnit: ×10¹² min⁻¹
^cUnit: ×10⁻³ min⁻¹

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