PRELIMINARY STUDY ON FURFURAL PRODUCTION FROM TWO DIFFERENT PROCESSES AND SOLVENT EXTRACTION TYPES

摘要

This work studied on the feasibility on furfural production using biological process. The mixture of corncob and urine was used as fermented material. The experimentused a 34 L-thermal plastic reactors with polystyrene as insulator. The experiment was divided into 2 parts, the first part studied on comparing the two processes which were aerobic andanaerobic processes and the second part studied on comparing the solvents for furfural extraction which were water and acid. The results of the first experiment found that the maximumfurfural productions were 1.575 and 6.64 microgram/ml from aerobic and anaerobic processes, respectively. Therefore, the anaerobic process was chosen to study the effect of solventand the analytical method was adjusted. The corncob was used as carbon source with 3 different types of nitrogen sources (milk, brewery sludge, and urine). The results of the secondexperiment showed that the extracted furfurals by water were 28, 34, and 41 microgram/ml of milk, brewery sludge, and urine, respectively, while the extracted furfurals by acid were915, 920, and 1,080 microgram/ml of milk, brewery sludge, and urine, respectively. In summary, the anaerobic process could produce more furfural than the aerobic process and theurine as nitrogen sources could produce the most furfural, while the furfural extraction by acid could more recovery than one of water.