CAJ | 학술논문

针对传统生物质微波热解体系单纯追求升温快而引起部分“热点”负效应，导致挥发分发生二次裂解的现象，使用复合微波吸收材料辅助生物质微波裂解制取生物油，并比较不同复合微波吸收材料的升温曲线及其对热解产物分布和生物油组成的影响。结果表明，复合微波吸收材料的加入能够改变生物质的微波升温行为，其中SiC/Fe3O4具有较高的炭化温度，保留了更多的中间产物。当SiC和Fe3O4以8∶2的比例混合、热解温度为650℃、加热功率为600 W的条件下，得到的生物油收率高达46.8%，而且生物油中呋喃类、醚类、酮类含量显著提升。
침대전통생물질미파열해체계단순추구승온쾌이인기부분“열점”부효응，도치휘발분발생이차렬해적현상，사용복합미파흡수재료보조생물질미파렬해제취생물유，병비교불동복합미파흡수재료적승온곡선급기대열해산물분포화생물유조성적영향。결과표명，복합미파흡수재료적가입능구개변생물질적미파승온행위，기중SiC/Fe3O4구유교고적탄화온도，보류료경다적중간산물。당SiC화Fe3O4이8∶2적비례혼합、열해온도위650℃、가열공솔위600 W적조건하，득도적생물유수솔고체46.8%，이차생물유중부남류、미류、동류함량현저제승。
To overcome the second pyrolysis of bio-oil caused by“hot point”negative effect in traditional microwave pyrolysis, the complex microwave absorbing material was added into the pyrolysis process assisting the preparation of bio-oils. The heating-up curves of different complex microwave absorbents and their influence to pyrolysis product distribution and bio-oil composition were compared. The results show that microwave heating behavior can be changed because of adding the complex microwave absorbents. Among them, SiC/Fe3O4 has a higher carbonization temperature,and more bio-oils were reserved. When SiC and Fe3O4 as microwave additives are mixed in ratio of 8:2, pyrolysis temperature is 650℃, microwave heating power is 600W, the maximum yield of the bio-oils can reach to 46.8%,and furans, ethers and ketones contents in the bio-oils increase.