Technology and economic analysis on green methanol production from biomass
Four main technical schemes,including biomass gasification-transformation-CO synthesis,biomass gasification-dual synthesis,biomass gasification-hydrogenation synthesis,and biomass direct combustion-carbon capture-hydrogenation,are introduced.The material balance and economy of technical schemes are calculated,and the feasibility of each scheme is compared and analyzed.Results show that the biomass gasification-transformation-CO synthesis scheme can be adopted if the conditions for CO2 consumption are available,and the production cost of methanol is RMB 3 608 per ton.On the premise of available new energy scenarios,the biomass gasification-dual synthesis scheme with a scale of 30 000 to 100 000 tons per year can be considered,and the production cost is RMB 3 694-3 768 per ton.Once the catalyst for the synthesis of methanol from CO2,CO and H2 is mature,the biomass gasification-hydrogenation synthesis scheme can be selected.The production cost is RMB 2 648-3 027 per ton,and the economy is high even if the traditional electricity price calculation is adopted.If the electricity price is 0,the production cost by the biomass direct combustion-carbon capture-hydrogenation scheme will decline to RMB 1 555 per ton.
万方数据
维普
