Abstract In order to minimize coke formation during microwave-assisted catalytic fast pyrolysis (MACFP) of poultry litter for bio-oil production, hierarchical ZSM-5/MCM-41 catalyst samples are synthesized and employed in this work, and the effect of NaOH concentration used during catalyst preparation on MACFP of poultry litter is investigated. The catalyst characterization results demonstrate that MCM-41 mesoporous structure is formed in hierarchical ZSM-5/MCM-41 catalyst as the outer shell layer coupled with ZSM-5 as the inside core. For product distribution, when the NaOH concentration increases from 1.5 to 3.0 mol/L, the coke yield decreases, the oil fraction yield first decreases and then increases, and the yields of water and gas first increase and then decrease. For chemical compositions in oil fraction, the relative contents of aliphatic hydrocarbons, aromatic hydrocarbons and oxygen-containing aromatic compounds first increase and then decrease, whereas the relative content of oxygen-containing aliphatic compounds first decrease and then increase.

中文翻译：

---

使用微波吸收剂和分级 ZSM-5/MCM-41 催化剂通过微波辅助催化快速热解将家禽垃圾转化为生物油

摘要 为了最大限度地减少微波辅助催化快速热解（MACFP）用于生物油生产的家禽垫料过程中的焦炭形成，本工作合成并采用了分级 ZSM-5/MCM-41 催化剂样品，以及 NaOH 浓度的影响研究了家禽垫料 MACFP 催化剂制备过程中使用的催化剂。催化剂表征结果表明，MCM-41介孔结构形成于以ZSM-5/MCM-41为外壳层，ZSM-5为内核的分级ZSM-5/MCM-41催化剂。对于产物分布，当NaOH浓度从1.5增加到3.0 mol/L时，焦炭产率降低，油馏分产率先降低后升高，水和气产率先升高后降低。对于油馏分中的化学成分，