林产化学与工业2025，Vol.45Issue(5)：29-35,7.DOI:10.20195/j.issn.0253-2417.2024126
基于Aspen Plus模拟的生物质气化制甲醇系统评估
Evaluation of Conversion of Biomass to Methanol via Gasification System Based on Aspen Plus Simulation
摘要
Abstract
;To optimize the biomass gasification to methanol system and identify the optimal operating conditions,Aspen Plus was utilized to simulate,calculate,and evaluate the biomass gasification,shift reaction,calcium oxide decarbonization,and methanol synthesis processes.The system employed rice husk as the feedstock and pure oxygen along with steam as the gasifying agents.The study investigated the effects of gasification reaction temperature,oxygen-to-biomass ratio(ER),and steam-to-biomass ratio on the composition and flow rate of the exit gases from each reactor,the cold gas efficiency of the gasifier,the hydrogen-to-carbon ratio of the syngas,and the production rates of methanol and steam.The results indicated that the optimal operating conditions for the system were an ER of 0.275,a gasifier temperature of 850 ℃,and a steam-to-biomass ratio of 0.1.Under these conditions,consuming 100 kg/h of rice husk yielded 42.63 kg/h of methanol and 151.82 kg/h of steam,with a cold gas efficiency of 77.78％and a syngas hydrogen-to-carbon ratio of 1.89.When the steam-to-biomass ratio was adjusted to 0.3,the purity of H2 in the gas after decarbonization and condensation reached 82.47％.Therefore,by adjusting the steam-to-biomass ratio,it is possible to achieve a multi-production mode for green methanol and green hydrogen from biomass.关键词
生物质气化/气化温度/氧气用量比/甲醇Key words
biomass gasification/gasification temperature/oxygen equivalent ratio/methanol分类
化学工程引用本文复制引用
崔东旭,徐越,卫俊涛,刘现宁,李津津,陈登宇..基于Aspen Plus模拟的生物质气化制甲醇系统评估[J].林产化学与工业,2025,45(5):29-35,7.基金项目
国家自然科学基金资助项目(52076112) （52076112）
东南大学能源热转换及其过程测控教育部重点实验室开放基金(无编号) （无编号）
