Furfural residue is a solid waste produced in manufacturing furfural from biomass like corncob, which can be converted into liquid/gaseous fuel and activated carbon via chemical activation. In this study, in addition the pore structure of activated carbon, the impacts of varied potassium salts (KCl, KOH, K₂CO₃ and K₂C₂O₄) on the properties of gases and bio-oil formed during activation of Furfural residue was studied. The results showed that the potassium salts suppressed cracking of condensable volatiles into gases, producing more bio-oil at expense of gases. KOH showed the highest activity for cracking, producing the lowest yield of activated carbon (4.8%) without activator with lower degree of crystallization than that K₂CO₃ and K₂C₂O₄ as activators (20.1% and 26.9%). The activated carbon activated with K₂CO₃ or K₂C₂O₄ showed the flaky membrane structure packed with varied layers, but not with KOH as the activator. K₂C₂O₄, KOH and K₂CO₃ as the activators could promote cracking, deoxygenation, dehydrogenation and aromatization reactions, generating abundant micropores, while KCl could not. In addition, K₂C₂O₄ as the activator of furfural residue showed the least energy consumption and environmental impacts, while with KCl was highest. The results herein demonstrated the potential of furfural residue as feedstock for the production of activated carbon and liquid fuels.

糠醛渣是利用玉米芯等生物质制造糠醛时产生的固体废物，可通过化学活化将其转化为液体/气体燃料和活性炭。在这项研究中，除了活性炭的孔结构，各种钾盐（KCl、KOH、K ₂ CO ₃和 K ₂ C ₂ O ₄) 对糠醛渣活化过程中形成的气体和生物油的性质进行了研究。结果表明，钾盐抑制了可冷凝挥发物裂解成气体，以牺牲气体为代价生产更多的生物油。KOH 表现出最高的裂解活性，产生的活性炭产率最低（4.8%），不含活化剂，结晶度低于作为活化剂的 K ₂ CO ₃和 K ₂ C ₂ O ₄（20.1% 和 26.9%）。_{用K 2} CO ₃或K ₂ C ₂ O ₄活化的活性炭显示了由不同层组成的片状膜结构，但没有 KOH 作为活化剂。K ₂ C ₂ O ₄、KOH和K ₂ CO ₃作为活化剂可以促进裂解、脱氧、脱氢和芳构化反应，产生丰富的微孔，而KCl则不能。此外，作为糠醛残渣活化剂的K ₂ C ₂ O _{4的能量消耗和环境影响最小，而KCl 最高。}本文的结果证明了糠醛残渣作为生产活性炭和液体燃料的原料的潜力。