蜈蚣草水热液化后处理及生物油改性
发布时间:2018-11-27 10:50
【摘要】:以典型砷超富集植物——蜈蚣草茎叶收获物为研究对象,开展了水热液化后处理及粗生物油改性实验研究。在粒度75μm、液固比6.7∶1、温度380℃、压强25 MPa条件下,对蜈蚣草进行水热液化后处理后,蜈蚣草茎叶中91.51%以上的重金属进入水溶液,68.56%的生物质转化为粗生物油。经GC-MS检测,粗生物油中有机物成分主要为苯环类23.79%、烷烃类13.96%、酯类20.75%、醇类3.10%、酮类25.11%、烯烃类7.19%;以正十二烷为溶剂,在温度150℃、时间2 h、氢压1.0 MPa以及钯碳催化剂5%的条件下对粗生物油进行催化加氢改性,得到的改性生物油含苯环类1.17%、烷烃类87.75%、酯类1.26%、醛酮类2.70%、烯烃类2.71%。经改性后,粗生物油中苯环类有机物大幅降低,烷烃类有机物大幅增长,热值由38.86 MJ·kg~(-1)提高到46.85 MJ·kg~(-1),有利于生物油的能源化利用。
[Abstract]:In this paper, the post-liquefaction treatment and modification of crude bio-oil by hydrothermal liquefaction were carried out on the stems and leaves of Pteris vittata, a typical super-enriched arsenic plant. Under the conditions of particle size of 75 渭 m, liquid-solid ratio of 6.7: 1, temperature of 380 鈩,
本文编号:2360480
[Abstract]:In this paper, the post-liquefaction treatment and modification of crude bio-oil by hydrothermal liquefaction were carried out on the stems and leaves of Pteris vittata, a typical super-enriched arsenic plant. Under the conditions of particle size of 75 渭 m, liquid-solid ratio of 6.7: 1, temperature of 380 鈩,
本文编号:2360480
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