Techno-economic analysis of ionic liquid pre-treatment integrated pyrolysis of biomass for co-production of furfural and levoglucosenone

[Display omitted] •Annual operating cost was highly sensitive to IL recycling efficiency.•Byproducts’ revenue played important role in lowering FF and LGO production costs.•The MSP of FF and LGO in this study was 1640 and 3590 AU$/tonne, respectively.•The integrated process showed a NPV of 6.9 MAU$ with a payback period of 15.4 years.•Solid loading and heat recovery were the most sensitive to MSP of FF and LGO. In the current work, a techno-economic analysis of pyrolysis of choline glycinate pre-treated biomass has been presented for the co-production of furfural and levoglucosenone along with hemicellulose, lignin and biochar as other byproducts. The mass balance suggested that the 1800 kg/h dry sugarcane straw biorefinery plant could produce about 260 kg/h furfural and 65 kg/h levoglucosenone. The minimum selling price of furfural and levoglucosenone were also estimated and the values were 1640 and 3590 AU$/tonne at 11.1 % biomass loading with 99 % ionic liquid recycling for furfural and levoglucosenone as the target products, respectively. The base case analysis suggested around 6.9 MAU$ NPV with a payback period of 15.4 years. The sensitivity analysis suggested that biomass loading, ionic liquid recycling and cost, waste heat recovery, furfural yield, interest rate and capital cost are the major influential factors for both the minimum selling price of furfural and levoglucosenone.