Spain, in the framework of the European Green Deal, has set ambitious climate and energy goals for 2030. Lignocellulosic biorefineries can make a strong contribution to these goals; however, advanced biofuels generally cannot be produced in a profitable way compared to fossil and first-generation fuels. To address this problem, the efficient production of a wide range of bioproducts, not only biofuels and bioenergy, may be the solution. Therefore, a systematic evaluation of the near-term economic potential bio-building blocks (xylitol, sorbitol, succinic, glutamic, glucaric, levulinic, lactic, and itaconic acids) is presented. Many possible combinations of feedstock and conversion technologies can be considered feasible pathways to manufacture advanced biofuels and bio-based building blocks. To map the optimal groups of technologies in the framework of Spain’s biorefineries, we apply a methodology based on a network optimization approach that combines minimum cost and energy criteria together with feedstock availability and demand constraints. The feedstocks analyzed are pine and eucalyptus residues and olive tree pruning wastes, being three largely available agroforesty residues in Spain. The results show that building blocks show good economic and energy performance compared to advanced transportation biofuels, and although their demand is much lower, they should be considered to improve the profitability of biorefineries. Secondly, advanced gasoline, bioethanol, hydrogen, and building blocks demands can be satisfied with pine, eucalyptus, and olive residues available in Spain. Finally, lactic acid production is profitable, but the remaining routes do not reach the break-even point, suggesting that further research is still needed.

西班牙在欧洲绿色协议的框架内制定了雄心勃勃的 2030 年气候和能源目标。木质纤维素生物精炼厂可以为这些目标做出巨大贡献；然而，与化石燃料和第一代燃料相比，先进的生物燃料通常无法以有利可图的方式生产。为了解决这个问题，不仅是生物燃料和生物能源，广泛的生物产品的高效生产可能是解决方案。因此，提出了对近期经济潜力生物构件（木糖醇、山梨糖醇、琥珀酸、谷氨酸、葡糖二酸、乙酰丙酸、乳酸和衣康酸）的系统评价。许多可能的原料和转化技术组合可以被认为是制造先进生物燃料和生物基构件的可行途径。为了在西班牙生物精炼厂的框架内绘制最佳技术组，我们应用了一种基于网络优化方法的方法，该方法将最低成本和能源标准与原料可用性和需求限制相结合。分析的原料是松树和桉树残留物以及橄榄树修剪废料，这是西班牙三种主要可用的农林业残留物。结果表明，与先进的运输生物燃料相比，积木具有良好的经济和能源性能，尽管它们的需求要低得多，但应考虑提高生物炼油厂的盈利能力。其次，西班牙可用的松树、桉树和橄榄残渣可以满足先进的汽油、生物乙醇、氢气和积木的需求。最后，乳酸生产是有利可图的，