Economic Analysis of Hydrogen Purification Technology by Metal Hydride Separation for By-product Hydrogen
During the current important stage of implementing the"dual carbon"target,the import-ance of hydrogen energy is constantly increasing.In response to the current large stock of cheap industrial by-product hydrogen and the increasing demand for high-purity hydrogen in the market,the purification of industrial by-product hydrogen to produce high-purity(over 99.999％)hydrogen is currently in the pilot demonstration stage.The cost of hydrogen production is the key to its competitiveness in the high-purity hydrogen production market.A novel metal hydride purification hydrogen production levelized cost of hy-drogen production model(LCOHP)is established in this work,to quantitatively analyze an industrial by-product hydrogen purification hydrogen production system with a processing capacity of 2000 Nm3/h.Moreover,the main factors affecting the LCOHP value are discussed.The results show that the LCOHP of the metal hydride purification hydrogen production system is 1.013 yuan/Nm3,among them,the cost of feed gas accounts for the highest proportion(78.45％).The system hydrogen recovery rate,industrial by-product hydrogen price,and hydrogen storage material regeneration cost have a significant impact on LCOHP.For every 5％increase in hydrogen recovery rate,the LCOHP value decreases by 0.012～0.042 yuan/standard cubic meter,a decrease of 1.18％to 4.15％.For every 0.05 yuan/standard cubic meter increase in the price of industrial by-product hydrogen,the LCOHP value increases by 0.101 yuan/standard cubic meter,an in-crease of 9.97％.For every 10％reduction in the cost of hydrogen storage material regeneration,the LCOHP decreases by 0.033 yuan/standard cubic meter,a decrease of approximately 3.26％.
metal hydridepurified hydrogen productionlevelized cost of hydrogen productioneconomic analysis
万方数据
维普
