Increasing biomass demand for domestic power production due to feed-in tariffs has led to the use of herbaceous perennial energy crops such as Erianthus arundinaceus (Erianthus) as a biomass resource. Erianthus (JES1) is obtained in a yield of approximately 14 t/ha on a dry basis in Nasu-shiobara, a temperate climate region of Japan and its standing-dead characteristics permit a small drying cost. In this study, the catalytic roles of Ca and K on the CO₂ and steam gasification of Erianthus char were investigated using thermogravimetry-differential thermal analysis (TG-DTA), and the effect of blending Erianthus with timber waste on the co-gasification performance was elucidated. The obtained results showed that the loading of K into the demineralised char (DC) enhanced both the CO₂ and steam gasification processes. In contrast, the loading of Ca on DC slightly inhibited CO₂ gasification, while steam gasification was significantly inhibited. In the co-gasification of an Erianthus-blended timber waste feedstock, the conversion to gas and cold-gas efficiency was promoted in the case of an Erianthus blend ≤30% due to the presence of inorganic components, such as K, in the blended feedstock.

由于上网电价，国内电力生产对生物质的需求不断增加，导致使用多年生草本能源作物，如 Erianthus arundinaceus (Erianthus) 作为生物质资源。Erianthus (JES1) 在日本的温带气候地区那须盐原以干基的产量约为 14 吨/公顷，其立枯特性允许较低的干燥成本。在本研究中，使用热重-差热分析 (TG-DTA)研究了 Ca 和 K 对Erianthus char CO ₂和蒸汽气化的催化作用，以及将 Erianthus 与木材废料混合对共气化性能的影响被阐明。获得的结果表明，将 K 负载到脱矿炭 (DC) 中增强了 CO ₂和蒸汽气化过程。相比之下，DC上的Ca负载略微抑制了CO ₂气化，而显着抑制了蒸汽气化。在 Erianthus 混合木材废料原料的共气化中，在 Erianthus 混合物≤30% 的情况下，由于混合中存在无机成分（如 K），促进了气体和冷气的转化效率原料。