化工进展2025，Vol.44Issue(5)：2716-2723,8.DOI:10.16085/j.issn.1000-6613.2024-1808
膜反应器中杨木催化气化制清洁合成气
Catalytic gasification of poplar wood in a membrane reactor to produce clean syngas
摘要
Abstract
Under the"Dual Carbon"initiative,biomass stands out as a zero-carbon or even negative carbon resource with significant development potential.Through pyrolysis and gasification technologies,biomass can be transformed into syngas,which serves as a feedstock for fuel cells or can be further converted into high-value products such as methanol,dimethyl ether,and aviation fuel.However,the presence of tar and particulate matter(PM)in syngas represents a major challenge in its downstream processing.In traditional biomass gasification systems,the gasification,tar cracking/reforming,and gas-solid separation units operate independently.As a consequence,the raw syngas has to be cooled down to a temperature below 300℃to match the operating temperature conditions of the dust removal equipment.This cooling process gives rise to issues including tar condensation and blockage,equipment corrosion,and heat loss.To tackle these challenges,this study introduces a novel approach that employs a membrane reactor integrated with a catalyst for the in-situ purification of syngas during poplar wood gasification.Silicon carbide(SiC)membranes were employed to capture PM,and Fe/Ni-loaded carbon-based catalysts were used to catalyze the cracking/reforming of the tar volatiles.The research revealed that at an optimal temperature of 800℃and a steam-to-biomass mass ratio(S/B)of 1.5,employing a SiC membrane reactor in conjunction with activated carbon-based catalysts loaded with Fe-Ni,the yield of syngas was 56mmol/g,and the molar ratio of hydrogen to carbon monoxide in the syngas was approximately 1.9;the tar yield from the gasification of poplar wood was reduced to 8.4g/m3 of syngas,with a tar conversion of 91.6%;the production of PM was minimized to 0.08g/m3 of syngas,and the PM removal efficiency was 89.0%,aligning with the technical specifications for syngas used in solid oxide fuel cells.关键词
生物质气化/膜反应器/碳基催化剂/清洁合成气Key words
biomass gasification/membrane reactor/carbon-based catalyst/clean syngas分类
能源科技引用本文复制引用
丁阿静,周巧巧,顾学红..膜反应器中杨木催化气化制清洁合成气[J].化工进展,2025,44(5):2716-2723,8.基金项目
国家自然科学基金(U22B20148,22308162) （U22B20148,22308162）
江苏省自然科学基金(BK20230321) （BK20230321）
材料化学工程国家重点实验室基金(SKL-MCE-23A16). （SKL-MCE-23A16）
