Researchers investigated the best conditions to produce furfural from Quercus mongolica wood using a dilute acid pretreatment process. They used a method called Response Surface Methodology to find the optimal temperature, acid concentration, and reaction time. The results showed that the temperature had the biggest impact on furfural yield, and the interaction between temperature and acid concentration was crucial. The predicted best conditions were a temperature of 184°C, acid concentration of 1.17%, and reaction time of 5 minutes, resulting in a maximum furfural yield of 6.37%. When tested, the actual furfural yield was close to the predicted value at 6.21%, showing that the method can effectively optimize furfural production from Quercus mongolica wood.