生物质制取绿色甲醇技术及经济性分析
马达夫 , 温霄瑨 , 闻哲 , 吴何来 , 丁先 , 李汪繁 , 刘平元
现代化工 ›› 2025, Vol. 45 ›› Issue (1) : 250 -255.
生物质制取绿色甲醇技术及经济性分析
Technology and economic analysis on green methanol production from biomass
介绍了生物质气化+变换及CO合成、生物质气化后双合成、生物质气化加氢合成、生物质直燃碳捕集加氢4种主要技术方案,对技术应用方案的物料平衡和经济性进行了计算,并对各方案的可行性进行了对比分析。结果表明,在具备CO2消纳条件时,可采用生物质气化、变换及CO合成方案,甲醇的生产成本为3 608元/t;在有新能源场景的前提下,可考虑3万~10万t的气化后双合成方案,生产成本为3 694~3 768元/t;待CO2、CO、H2合成甲醇的催化剂较成熟后,可考虑气化后加氢合成方案,生产成本为2 648~3 027元/t,即使采用传统电价计算时经济性也较高;当电价降低至0元时,生物质直燃碳捕集加氢方案的生产成本将降至1 555元/t。
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.
biomass / economy / green methanol / gasification
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