Every twig and splinter used Plant-based production of commodity chemicals faces steep competition from fossil resources, which are often cheaper and easier to partition. Sustainable use of renewable resources requires strategies for converting complex and recalcitrant biomolecules into streams of chemicals with extraordinary efficiency. Liao et al. developed a biorefinery concept in which wood is eventually fully converted into useful chemicals: phenol, propylene, pulp amenable to ethanol production, and phenolic oligomers that can be incorporated into ink production (see the Perspective by Zhang). A life-cycle assessment and techno-economic analysis highlight the efficiency of the process and reveal the potential for such biorefinery strategies to contribute to sustainable chemicals markets. Science, this issue p. 1385; see also p. 1305 Biorefinery processing of wood provides sustainable platform chemicals. The profitability and sustainability of future biorefineries are dependent on efficient feedstock use. Therefore, it is essential to valorize lignin when using wood. We have developed an integrated biorefinery that converts 78 weight % (wt %) of birch into xylochemicals. Reductive catalytic fractionation of the wood produces a carbohydrate pulp amenable to bioethanol production and a lignin oil. After extraction of the lignin oil, the crude, unseparated mixture of phenolic monomers is catalytically funneled into 20 wt % of phenol and 9 wt % of propylene (on the basis of lignin weight) by gas-phase hydroprocessing and dealkylation; the residual phenolic oligomers (30 wt %) are used in printing ink as replacements for controversial para-nonylphenol. A techno-economic analysis predicts an economically competitive production process, and a life-cycle assessment estimates a lower carbon dioxide footprint relative to that of fossil-based production.

中文翻译：

---

用于低碳足迹化学品生产的可持续木材生物精炼厂

每根树枝和碎片都使用基于植物的商品化学品生产面临来自化石资源的激烈竞争，化石资源通常更便宜且更容易分割。可再生资源的可持续利用需要将复杂且顽固的生物分子以非凡的效率转化为化学物质流的策略。廖等人。开发了一种生物精炼概念，其中木材最终完​​全转化为有用的化学品：苯酚、丙烯、适合乙醇生产的纸浆，以及可用于油墨生产的酚醛低聚物（参见 Zhang 的观点）。生命周期评估和技术经济分析突出了该过程的效率，并揭示了此类生物精炼战略为可持续化学品市场做出贡献的潜力。科学，这个问题 p。1385; 另见第 1305 木材的生物精炼加工提供了可持续的平台化学品。未来生物精炼厂的盈利能力和可持续性取决于有效的原料使用。因此，在使用木材时必须使木质素增值。我们开发了一种集成的生物精炼厂，可将 78 重量% (wt%) 的桦木转化为木糖化学品。木材的还原催化分馏产生适合生物乙醇生产的碳水化合物纸浆和木质素油。提取木质素油后，未分离的粗酚单体混合物通过气相加氢处理和脱烷基作用催化漏斗成 20 wt% 苯酚和 9 wt% 丙烯（基于木质素重量）；残留的酚类低聚物 (30 wt %) 用于印刷油墨中作为有争议的对壬基苯酚的替代品。