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Study on gasification of multi-air-stage downdraft reactor using pelletized biomass |
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| รหัสดีโอไอ | |
| Title | Study on gasification of multi-air-stage downdraft reactor using pelletized biomass |
| Creator | 1. Nidya Wisudawati Hayadi 2. Boonrod Sajjakulnukit 3. Sri Haryati |
| Publisher | Joint Graduate School of Energy and Environment |
| Publication Year | 2557 |
| Keyword | Gasification, Multi-air-stage, Downdraft, Eucalyptus wood pellet |
| Abstract | The downdraft gasification technology has been well known among researchers as the most promising biomass utilization method. Common downdraft gasifier generally consist only single stage air supply. This study developed the design of downdraft gasifier to triple air supply stages which can carry up to 50 kWth. The aim of this study is, instead of improving gasifier performance, can improve producer gas quality. Eucalyptus wood pellet was chosen as raw material in consideration of stable dry fuel, more uniform size, increase the energy density and decrease problematic in gasifier. By varying two different air flow feed (285 L/min and 400 L/min) in each double and triple air supply stages, measuring the CO, H2, CH4 and CO2 gas concentrations, the gas heating value, as well as other performance variables were calculated. There was almost linear relation between air flow feed, a number of stages and producer gas quality: Air flow feed of 400 L/min showed a better syngas quality than 285 L/min with CO, CH4 and H2 concentrations of 12.6, 0.88 and 8.80% v. |
| ISBN | 978-616-92228-1-1 |
