| Summary: | 碩士 === 逢甲大學 === 綠色能源科技碩士學位學程 === 103 === In this study, the wet scrubber was used to capture carbon dioxide in simulation and the actual biohydrogen production system with calcium oxide and wollastonite powder as an absorbent solution. The results showed that the absorbability of calcium oxide‘s much higher than wollastonite powder (about 28% per mole) under the normal temperature and pressure. The best carbon dioxide absorption in actual system was 0.18 mol/mol of absorbant (28% removal rate) is achieved by HRT of 1 h (gas flow rate approximates 8.4 ml/min), 10 g / L of calcium oxide with the feed flow rate of 2.5 ml / min.
The actual anaerobic biohydrogen production system compared to a control experiment, carbon dioxide removal rate increased to 4.93% in HRT 1 h, increased to 4.86% in HRT 2 h, while actual anaerobic biohydrogen production system filling biofilter media to 15 cm, compared to blank condition experiment, carbon dioxide removal rate increased to 6.33% in HRT 1 h, increased to 5.83% in HRT 2 h. The main effect on carbon dioxide removal rate is that whether the biofilter media is added. However, if the effluent of biohydrogen production system is used, the carbon dioxide removal rate will be better than the control experiment using only water as the solvent. Finally, the in-situ storage of carbon dioxide could be achieved.
Keywords: Biohydrogen production; Calcium oxide; Wollastonite powder; CO2 remove; Wet scrubber; Packed-filter media
|
|---|
