Solak Agnieszka, Rutkowski Piotr
Faculty of Chemistry, Wrocław University of Technology, Gdańska 7/9, 50-344 Wrocław, Poland.
Faculty of Chemistry, Wrocław University of Technology, Gdańska 7/9, 50-344 Wrocław, Poland.
Waste Manag. 2014 Feb;34(2):504-12. doi: 10.1016/j.wasman.2013.10.036. Epub 2013 Nov 16.
Cellulose/polyethylene (CPE) mixture 3:1, w/w with and without three clay catalysts (K10 - montmorillonite K10, KSF - montmorillonite KSF, B - Bentonite) addition were subjected to pyrolysis at temperatures 400, 450 and 500°C with heating rate of 100°C/s to produce bio-oil with high yield. The pyrolytic oil yield was in the range of 41.3-79.5 wt% depending on the temperature, the type and the amount of catalyst. The non-catalytic fast pyrolysis at 500°C gives the highest yield of bio-oil (79.5 wt%). The higher temperature of catalytic pyrolysis of cellulose/polyethylene mixture the higher yield of bio-oil is. Contrarily, increasing amount of montmorillonite results in significant, almost linear decrease in bio-oil yield followed by a significant increase of gas yield. The addition of clay catalysts to CPE mixture has a various influence on the distribution of bio-oil components. The addition of montmorillonite K10 to cellulose/polyethylene mixture promotes the deepest conversion of polyethylene and cellulose. Additionally, more saturated than unsaturated hydrocarbons are present in resultant bio-oils. The proportion of liquid hydrocarbons is the highest when a montmorillonite K10 is acting as a catalyst.
按重量比3:1混合的纤维素/聚乙烯（CPE）混合物，在添加和不添加三种粘土催化剂（K10 - 蒙脱石K10、KSF - 蒙脱石KSF、B - 膨润土）的情况下，于400、450和500°C的温度下以100°C/s的加热速率进行热解，以高产率生产生物油。根据温度、催化剂类型和用量的不同，热解油产率在41.3 - 79.5 wt%的范围内。在500°C下进行的非催化快速热解产生的生物油产率最高（79.5 wt%）。纤维素/聚乙烯混合物催化热解的温度越高，生物油产率越高。相反，蒙脱石用量的增加会导致生物油产率显著且几乎呈线性下降，随后气体产率显著增加。向CPE混合物中添加粘土催化剂对生物油成分的分布有多种影响。向纤维素/聚乙烯混合物中添加蒙脱石K10能促进聚乙烯和纤维素的深度转化。此外，所得生物油中饱和烃比不饱和烃更多。当蒙脱石K10用作催化剂时，液态烃的比例最高。
