In this study, methane and model biogas were added during the catalytic steam gasification of pine to regulate the syngas composition and improve the quality of syngas. The effects of Ni/γ-Al₂O₃ catalyst, steam and methane/model biogas on H₂/CO ratio, syngas yield, carbon conversion rate and tar yield were explored. The results indicated that the addition of methane/model biogas during biomass steam gasification could increase the H₂/CO ratio to about 2. Methane/model biogas, steam and Ni/γ-Al₂O₃ catalyst significantly affected the quality of syngas. High H₂ content syngas with H₂/CO ratio of about 2, biomass carbon conversion >85% and low tar yield was achieved under the optimum condition: S/C = 1.5, α = 0.2 and using Ni/γ-Al₂O₃ catalyst. According to ANOVA, methane and catalyst were the key influencing factors of the H₂/CO ratio and syngas yield, and the tar yield mainly depended on the Ni/γ-Al₂O₃ catalyst. Biogas, as a more environmentally friendly material than methane, can also regulate the composition of syngas co-feeding with biomass.

在这项研究中，在松木的催化蒸汽气化过程中添加了甲烷和模型沼气，以调节合成气的组成并提高合成气的质量。的Ni /γ-Al的影响₂ ö ₃催化剂，蒸汽，而H甲烷/模型沼气₂ / CO比，合成气产量，碳转化率和焦油量进行了探讨。结果表明生物质蒸汽气化过程中加入甲烷/模型沼气可以增加为H ₂ / CO比至约2。甲烷/模型沼气，蒸汽和Ni /γ-Al系₂ ö ₃催化剂显著影响合成气的质量。高H ₂含量的合成气与H ₂约2 / CO比，生物质的碳转化> 85％和低焦油产率的最佳条件下实现的：S / C  = 1.5，α  = 0.2和用Ni /γ-Al系₂ ö ₃催化剂。根据ANOVA，甲烷和催化剂是主要影响的H因子₂和/ CO比的合成气产量，和焦油产率主要取决于在Ni /γ-Al系₂ ö ₃催化剂。沼气作为一种比甲烷更环保的材料，也可以调节与生物质共同进料的合成气的组成。