【摘要】 在分析无焰氧化技术的实现条件、形成机制及其实现途径的基础上,提出一种适合双高煤种气化的新型干煤粉气流床气化炉。介绍该气化炉的试验研究系统,以及双高煤干法进料气化试验研究过程与结果。炉内反应图像说明了该气化炉的炉内气化反应具有无焰氧化技术特征,验证了本气化炉的设计方案的可行性;通过炉温的测量、灰渣黏度与灰渣成分的关系分析确定了该双高煤合适的气化工艺参数,并给出了气化工艺参数条件下该气化炉常压下产生的合成气的组分和技术指标。试验数据表明该气化炉可以实现双高煤种的高效气化,达到了预期目的,为后续的中试研究积累了经验。更多还原

【Abstract】 Based on the analysis of realization conditions, formation mechanism and implementation approaches of flameless oxidation technology, a novel dry pulverized coal gasifier which is applicable to double-high coal was put forward. A test system for the pressurized coal gasifier was described, and the study processes and results of the test were given. The feasibility of flameless gasification inside the gasifier was validated from the gasification reaction images, which accord with the characteristic of flameless oxidation. The key gasification parameters were obtained from the measured temperature, the relations of viscosity and components of slag. Moreover, components of syngas and technical indexs were gained on the condition of the key gasification parameters in the gasifier. These results show that high efficiency gasification can be achieved on the gasifier, the desired objectives have been attained, and the experience has been accumulated for the subsequent pilot test.更多还原