To explore the feasibility of large-scale application of low-carbon methanol in Eastern Energy Load Center,taking the shipping fuel as application scenario,three schemes are analyzed and compared,including offshore methanol synthesis,onshore methanol synthesis based on offshore wind power,and inland methanol synthesis.The most suitable low-carbon methanol synthesis scheme is selected from three perspectives:carbon footprint in the methanol synthesis process,technical challenges of various equipment,and industrial chain cost.In terms of comparison in industrial chain cost,a levelized methanol cost model is proposed based on the levelized unit hydrogen production cost.In the calculation process,each scheme is divided into 5 stages to calculate the cost of levelized methanol.Based on relevant research and literature data,three technical schemes and economic models are established on the basis that offshore renewable energy takes a 300 MW wind farm as benchmark,and the inland scheme takes an actual project as benchmark,which produces 100 000 tons/year methanol from carbon dioxide and green hydrogen in Ordos,Inner Mongolia,China.Results indicate that among these three schemes,the offshore methanol synthesis scheme has less technical feasibility,and the offshore carbon dioxide transportation process is too complex.The long-distance transportation of methanol in the inland methanol synthesis scheme may suffer issues in safety and carbon dioxide emission.From the perspectives of carbon footprint,technical challenges,and industrial chain cost,the onshore methanol synthesis scheme based on offshore wind power is more suitable for shipping fuel scenario.The levelized methanol cost calculated is RMB 8 000-11 500 per ton.
维普
万方数据