Biotechnology for Biofuels and Bioproducts

Table 2 Coupon testing during IL pretreatment (140 °C) and acidolysis (105 °C) under various acid concentrations and corrosion results

From: Scale-up and process integration of sugar production by acidolysis of municipal solid waste/corn stover blends in ionic liquids

Reaction conditions	Test results
Coupon type	Reaction time (h)	Ionic liquid type	HCl concentration (%)	Weight loss (%)	Metal loss (mils)	Corrosion rate (mpy)
I	144	[C₄C₁Im]Cl	0.6	0.013	0.008	0.481
II	144	[C₄C₁Im]Cl		0.048	0.008	0.511
II	144	[C₂C₁Im]Cl		0.029	0.005	0.295
I	144	[C₄C₁Im]Cl	1.8	0.028	0.017	1.055
II	144	[C₄C₁Im]Cl		0.073	0.012	0.770
II	144	[C₂C₁Im]Cl		0.066	0.011	0.670
I	366	[C₄C₁Im]Cl	1.8	0.001	0.0005	0.002
II	366	[C₄C₁Im]Cl		0.002	0.0004	0.006
II	366	[C₂C₁Im]Cl		0.003	0.0005	0.017

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