The H-factor, a parameter used extensively to analyze and predict the outcome of kraft pulping, is applied to organosolv pretreatment. The total solid yield after organosolv pretreatment fits well with the H-factor. The concept has been extended to apply to the individual biomass polymers using unique values for the activation energy for the depolymerization of the individual biomass polymers, giving the O-factor concept analogous to the P factor used for analyzing prehydrolysis kinetics. The results showed a linear relationship between ln(L₀/L) and O-factor at an activation energy of 96 kJ/mol. The best linear fit for mannan and xylan degradation was obtained at O-factor activation energies of 104 kJ/mol and 142 kJ/mol, respectively, and the formation of furfural and 5-HMF gave a good linear fit using an O-factor activation energy of 150 kJ/mol. The O-factor is thus a useful concept for analyzing organosolv pretreatment when the temperature during pretreatment is not constant.

H 因子是一个广泛用于分析和预测硫酸盐法制浆结果的参数，适用于有机溶剂预处理。有机溶剂预处理后的总固体产率与 H 因子非常吻合。该概念已扩展到使用单个生物质聚合物解聚的活化能的独特值应用于单个生物质聚合物，给出类似于用于分析预水解动力学的 P 因子的 O 因子概念。结果表明 ln(L ₀/L) 和 O 因子，活化能为 96 kJ/mol。甘露聚糖和木聚糖降解的最佳线性拟合分别在 104 kJ/mol 和 142 kJ/mol 的 O 因子激活能下获得，并且糠醛和 5-HMF 的形成使用 O 因子激活提供了良好的线性拟合能量为 150 kJ/mol。因此，当预处理过程中的温度不恒定时，O 因子是分析有机溶剂预处理的有用概念。