Optimal bio-based supply chain with carbon capture and use: An economic and environmental approach

In this work, an optimisation model for the optimal design and planning of energy supply chain is presented. The model intends to fulfil specific demands of electricity and methanol under a stipulated CO2 emissions reduction. The electricity supplied to the methanol plant is produced by the co-combustion of biomass (renewable). We consider that incorporating CO2 capture technologies causes a reduction in the efficiency of cocombustion plants. Different scenarios are investigated to evaluate the conditions under which this type of projects may become financially feasible. A case study based on the Spanish energy grid is utilised for this exercise.