Attainable region analysis for continuous production of second generation bioethanol

Table 1 Rate balance equations per compound for cSHF and cSSF operations

Processes	Operations	Rate equations ( r( c) vector)
cSHF	(1) Enzymatic saccharification	r_S = - r₁ - r₂
		r_B = r₁ - r₂
		r_G = r₂ + r₃
	(2) Ethanol fermentation	$r_{x} = r_{x}^{F}$
		$r_{G} = r_{G}^{F}$
		$r_{P} = r_{P}^{F}$
cSSF	1 and 2	r_S = - r₁ - r₂
		r_B = r₁ - r₂
		$r_{G} = r_{2} + r_{3} - r_{G}^{F}$
		$r_{x} = r_{x}^{F}$
		$r_{P} = r_{P}^{F}$

Reaction rates for enzymatic saccharification are from Kadam et al. [24]. For glucose fermentation reaction rate definitions are presented in the text. Process cSSF combines both reaction rates through glucose as a common intermediate.

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