玉米芯与废食用油共热解耦合快速共热解制备生物油。
Co-torrefaction of corncob and waste cooking oil coupled with fast co-pyrolysis for bio-oil production.
机构信息
State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China.
School of Resources & Environmental, Nanchang University, Nanchang 330031, China.
出版信息
Bioresour Technol. 2023 Feb;370:128529. doi: 10.1016/j.biortech.2022.128529. Epub 2022 Dec 24.
Lignocellulosic biomass is a rich source of fixed renewable carbon and a promising alternative to fossil sources. However, low effective hydrogen to carbon ratio limits its applications. This work studied the influence of oil-bath co-torrefaction of corncob and waste cooking oil for co-pyrolysis. It was compared with dry torrefaction and hydrothermal wet torrefaction firstly. Residual of oil-bath co-torrefaction were the highest of 97.01 %. Oil-bath co-torrefaction could maximize hydrogen atoms retention in corncob, which has a positive significance for deoxygenation during pyrolysis. Oil-bath co-torrefaction could also reduce the average activation energy required for corncob decomposition, while it was increased with dry torrefaction. Oil-bath co-torrefaction coupled with co-pyrolysis was more suitable for hydrocarbon-rich bio-oil production. Oil-bath co-torrefaction temperature had the greatest influence on bio-oil composition. High pressure promoted formation of the CC double bond and degradation of lignin, which further promoted the formation of monocyclic aromatics in bio-oil.
木质纤维素生物质是固定可再生碳的丰富来源，是化石资源的有前途的替代品。然而，低有效氢碳比限制了其应用。本工作研究了玉米芯和废食用油油浴共热解共热解的影响。首先与干热解和水热湿解进行了比较。油浴共热解的残渣最高为 97.01%。油浴共热解可以最大限度地保留玉米芯中的氢原子，这对热解过程中的脱氧具有积极意义。油浴共热解还可以降低玉米芯分解所需的平均活化能，而干热解则会增加。油浴共热解与共热解结合更适合生产富含碳氢化合物的生物油。油浴共热解温度对生物油组成的影响最大。高压促进了 CC 双键的形成和木质素的降解，这进一步促进了生物油中环单芳烃的形成。
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