Fig. 9

Effect of liquid residence time on a glucose concentration, b inhibition parameter i, and c conversion of each stage. Substrate is α-cellulose. Solid concentration in the reactors is 124 g solids/L liquid. Enzyme-addition location is Stage 7. Enzyme loading is 3.5 mg/g. Solids loading rate is 3.4 g/(L day). Operation time is 200 days. \(^1 {\text{Conversion}}\;{\text{of}}\;{\text{each}}\;{\text{stage}} \left( \% \right) = \frac{1}{{n_{0} }}\mathop \smallint \nolimits_{0}^{1} x\hat{n}\left( x \right){\text{d}}x \times 100\%\)