This study aimed to produce acetic acid from vegetable wastes by a new hydrothermal two-step process. A continuous flow reaction system with a maximum treatment capacity of 2 kg/h of dry biomass developed by us was used. Five kinds of vegetables of carrots, white radish, chinese cabbage, cabbage and potato were selected as the representation of vegetable wastes. First, batch experiments with the selected vegetables were performed under the condition of 300°C, 1 min for the first step, and 300°C, 1 min and 70% oxygen supply for the second step, which is the optimum condition for producing acetic acid in the case of using starch as test material. The highest yields of acetic acid from five vegetables were almost the same as those obtained from starch. Subsequently, similar the highest yield of acetic acid and experimental conditions from vegetables were also obtained successfully using the continuous flow reaction system. These results should be useful for developing an industrial scale process.
|Journal||Journal of Physics: Conference Series|
|Issue number||PART 8|
|Publication status||Published - 2008 Jan 1|
|Event||Joint 21st AIRAPT and 45th EHPRG International Conference on High Pressure Science and Technology - Catania, Italy|
Duration: 2007 Sep 17 → 2007 Sep 21
ASJC Scopus subject areas
- Physics and Astronomy(all)