Furfural is one of those promising chemicals obtained from biomass that is able to compete with petrochemicals. The purification of furfural is one the most critical stages during its production process, due to it requires a great amount of energy. In this sense, liquid-liquid extraction is one of the most promising alternatives. However, the main disadvantage of this alternative is the losses of co-products, which reduces the profitability of the process. This is work is one of the first to show the separation of coproducts of a purification process of furfural-based liquid-liquid extraction. Different intensified alternatives were tested in order to determine the best separation process for purifiying coproducts. The total annual cost, eco-indicator 99, the individual risk and the condition number were used to evaluate economic, environmental, safety and controllability aspects respectively, of the separation alternatives. The results indicate that the intensified alternatives have a reduction on total annual cost and environmental impact of around 25%, while the improvements on the risk index is around 4%. To conclude, an indirect intensified alternative was selected as the best option due to an improvement in cost and environmental impact, important risks reduction and similar control properties than those of conventional schemes.

糠醛是从生物质中获得的有前途的化学品之一，能够与石化产品竞争。糠醛的纯化是其生产过程中最关键的阶段之一，因为它需要大量的能量。从这个意义上讲，液液萃取是最有前途的替代方法之一。但是，这种替代方法的主要缺点是副产品的损失，这降低了过程的利润。这是首次证明分离基于糠醛的液-液萃取过程中的副产物的工作之一。为了确定提纯副产物的最佳分离工艺，对不同的强化替代品进行了测试。年度总成本，生态指标99，个人风险和条件编号用于评估经济，环境，分离方案的安全性和可控性方面。结果表明，强化替代方案可以使年度总成本和对环境的影响降低约25％，而风险指数的提高约为4％。总之，由于成本和环境影响的改善，重要风险的减少以及与常规方案相比的类似控制特性，间接强化方案被选为最佳方案。