Repsol公司已获得可持续生物材料圆桌会议(RSB)的认证,使该公司能够在RSB的Book and Claim系统内销售其可持续航空燃料(SAF)。Book and Claim机制解决了SAF目前面临的供需挑战,并使航空业能够加快脱碳进程。通过该机制使得世界各地其他...Repsol公司已获得可持续生物材料圆桌会议(RSB)的认证,使该公司能够在RSB的Book and Claim系统内销售其可持续航空燃料(SAF)。Book and Claim机制解决了SAF目前面临的供需挑战,并使航空业能够加快脱碳进程。通过该机制使得世界各地其他机场的客户在购买传统喷气燃料时,可以申请与注册SAF相关的认证减排。目前,SAF仅在全球有限的地理位置提供,将其运送到其他机场可能成本高昂,并在加油过程中产生不必要的二氧化碳排放。展开更多
The chemical and mineralogical composition of bauxite deposits is a key factor in the profitability of refining processes. The study of bauxites from the Saföfö site has assessed variations in chemical and m...The chemical and mineralogical composition of bauxite deposits is a key factor in the profitability of refining processes. The study of bauxites from the Saföfö site has assessed variations in chemical and mineralogical composition under various conditions, as well as the optimum conditions for their exploitation. The methodologies used in this study include experimental methods for determining moisture content, chemical composition, mineralogical composition, and specific density of bauxite. The results show significant variation in moisture content among the bauxite samples, with values ranging from 2.90% to 17.80%. The silica percentages in the samples range from 1.69% to 8.14%, while alumina percentages vary from 36.81% to 54.03%. After calcination, alumina oxide percentages range from 40% to 75%. After chemical activation, alumina oxides Al2O3 range from 40% to over 50%. Gibbsite is the most abundant mineral, accounting for about 60% - 70% of the total composition of the bauxite samples. Samples A to F have bulk densities varying between approximately 3.6 and 3.9. Sample B has the highest density, around 3.9, while sample C has the lowest, at around 3.5. Bauxite mining at the Saföfö site offers significant potential for the alumina industry, provided appropriate processing methods are selected to maximize quality and profitability while minimizing environmental impact.展开更多
文摘Repsol公司已获得可持续生物材料圆桌会议(RSB)的认证,使该公司能够在RSB的Book and Claim系统内销售其可持续航空燃料(SAF)。Book and Claim机制解决了SAF目前面临的供需挑战,并使航空业能够加快脱碳进程。通过该机制使得世界各地其他机场的客户在购买传统喷气燃料时,可以申请与注册SAF相关的认证减排。目前,SAF仅在全球有限的地理位置提供,将其运送到其他机场可能成本高昂,并在加油过程中产生不必要的二氧化碳排放。
文摘The chemical and mineralogical composition of bauxite deposits is a key factor in the profitability of refining processes. The study of bauxites from the Saföfö site has assessed variations in chemical and mineralogical composition under various conditions, as well as the optimum conditions for their exploitation. The methodologies used in this study include experimental methods for determining moisture content, chemical composition, mineralogical composition, and specific density of bauxite. The results show significant variation in moisture content among the bauxite samples, with values ranging from 2.90% to 17.80%. The silica percentages in the samples range from 1.69% to 8.14%, while alumina percentages vary from 36.81% to 54.03%. After calcination, alumina oxide percentages range from 40% to 75%. After chemical activation, alumina oxides Al2O3 range from 40% to over 50%. Gibbsite is the most abundant mineral, accounting for about 60% - 70% of the total composition of the bauxite samples. Samples A to F have bulk densities varying between approximately 3.6 and 3.9. Sample B has the highest density, around 3.9, while sample C has the lowest, at around 3.5. Bauxite mining at the Saföfö site offers significant potential for the alumina industry, provided appropriate processing methods are selected to maximize quality and profitability while minimizing environmental impact.
