Pre-Operational Analysis of a Prototype Downdraft Gasifier Fueled by Bamboo

• 作者: Hipólito Romero-Tehuitzil Jorge Huacuz Villamar Julia Salovaara M. Consolación Medrano Vaca
• 来源期刊: 可持续生物质能源系统(英文)
• 学科: 医学
• 关键词: BIOMASS BAMBOO Downdraft GASIFIER Thermoflex Sensitivity ANALYSIS
• 年，卷（期）: 2015,（2）
• 页码范围: 62-72
• 页数: 11页
• 分类号: R73

摘要

Biomass gasification is a thermochemical conversion process that dates back to the 19th century. Nevertheless, designing and operating a gasifier system is not an easy task. Every biomass feedstock has different characteristics and the gasifier needs to be designed according to those qualities. Hence, many laboratory analyses on bamboo were carried out for this study. This study also concentrates on finding the best possible process variables for a bamboo fueled downdraft gasifier through a sensitivity analysis. A software program called Thermoflex was used for this purpose and the effect of gasifier temperature, air-fuel-ratio, moisture content of the fuel and temperature of pre-heated air on the syngas composition were simulated. The results show that bamboo is a decent gasification feedstock because of its low ash and sulfur content and satisfactory energy value. The simulations reveal that the best gas quality is obtained with the gasifier temperature between 700℃ and 800℃, A/F-ratio of 1.25 - 1.75 and dry basis moisture content between 10% and 15%.