The present paper concerns the partial updraft gasification of wheat–rye straw pellets, using air as a gasification agent. The aim of this paper is to examine the impact of biochar and ash outflow during the updraft gasification process on the parameters of the latter. For this purpose, a series of five experiments with different parameters of biochar and ash outflow and a reference experiment were carried out with a constant amount of supplied air. The results of the research show that higher volumetric outflows of biochar and ash increase the calorific value (from 6.7 to 7.4 MJ/Nm³) and production (from 34.8 to 40.3 Nm³/h) of the producer gas, as well as the rate of fuel feed rate (from 30 to 43 kg/h). Reductions in the yield of gas (from 1.16 to 0.94 Nm³/kg_fuel), equivalence ratio (from 0.125 to 0.087), and cold gas efficiency (from 44.7 to 40.2%) were observed. The content of gravimetric tar in producer gas was typical of updraft gasification and fluctuated within a range of 65‒125 g/Nm³.

中文翻译：

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上升气流部分气化过程中生物炭和灰分流出对移动床反应器中工艺参数的影响

本文涉及使用空气作为气化剂的小麦-黑麦秸秆颗粒的部分上升气化。本文的目的是研究上升气流气化过程中生物炭和灰分流出对其参数的影响。为此，在恒定量的空气供应下进行了一系列的五个实验，每个实验具有不同的生物炭和灰分流出参数，以及一个参考实验。研究结果表明，较高的生物炭和灰分体积流出量可提高生产气体的发热量（从6.7到7.4 MJ / Nm ³）和生产量（从34.8到40.3 Nm ³ / h），并提高生产率。燃油进给速度（从30到43 kg / h）。气体收率降低（从1.16 Nm ³降低到0.94 Nm ³/ kg_燃料），当量比（0.125至0.087）和冷气效率（44.7至40.2％）。产生气中的重量焦油含量是上升气流气化的典型特征，其波动范围为65‒125 g / Nm ³。