A lab scale gasifier was built to perform the gasification experiment. The effects of temperature and steam flow on the process were investigated, and the effects of the addition of blast furnace gas ash (BFGA) on product composition, the value of H₂/(CO + CO₂), the lower heating value (LHV) of product gas, and productivity are summarized. The experimental results clearly indicate that the addition of BFGA in the steam gasification of corn straw pellets effectively enhances the ability of the downdraft gasifier to produce hydrogen-rich gas. Compared with the non-catalytic gasification process, the addition of BFGA promotes the formation of H₂, inhibits the generation of methane, CH₄, and other hydrocarbon gases, C_nH_m, and increases the H₂/(CO + CO₂) ratio. Unlike the process without the BFGA, the LHV of the product gas with BFGA increases with increasing temperature. When the water vapor volume was 0.75 kg/h, the gas production rate was the same at 850 °C with BFGA and at 950 °C without ash gas. The addition of BFGA clearly leads to a significant improvement in the ability of gasifiers to produce hydrogen-rich gas.

建立了实验室规模的气化炉以进行气化实验。研究了温度和蒸汽流量对工艺的影响，并加入了高炉煤气灰（BFGA）对产品组成，H ₂ /（CO + CO ₂）值，较低的热值（LHV）的影响），并总结了生产率。实验结果清楚地表明，在玉米秸秆颗粒的蒸汽气化中添加BFGA可以有效地增强下吹气化炉产生富氢气体的能力。与非催化气化过程相比，BFGA的添加促进了H ₂的形成，抑制了甲烷CH ₄和其他碳氢化合物气体C _{n的生成。}H _m，并增加H ₂ /（CO + CO ₂）比。与不使用BFGA的过程不同，使用BFGA的产物气的LHV随着温度的升高而增加。当水蒸气体积为0.75 kg / h时，在有BFGA的情况下，在850°C下和在没有灰分气体的情况下，在950°C下，产气速率相同。BFGA的添加明显导致气化炉生产富氢气体的能力的显着提高。