金属改性ZSM-5催化剂对黄丝藻提油后藻渣催化热解的影响

发布时间：2018-04-27 06:43

本文选题：ZSM- + 改性催化剂　；参考：《太阳能学报》2017年11期

【摘要】：采用固定床反应器对黄丝藻提油后藻渣进行催化热解,以物料与催化剂质量比为1∶2研究不同金属类型(Mo、Ce、Ni)及金属负载量(4%、6%、8%)改性后的ZSM-5催化剂对黄丝藻提油后藻渣热解产物特性的影响。对催化剂进行BET、XRD等表征,对热解气体产物通过气相色谱分析,对液体产物采用气相色谱-质谱联用仪进行定性及半定量分析。结果表明:金属改性后ZSM-5催化剂加剧热解挥发分裂解,导致液体产物收率降低,热解气体产物的收率增加。反应过程中,催化剂的加入使气体产物中CO含量增加,CO_2含量减少。采用6%Ni/ZSM-5催化剂时所获得液体产物中酸类物质降低为0.09%,碳氢化合物组分达34.81%,且含有较低的稠环化合物和最高的烷基苯成分(4.92%)。
[Abstract]:A fixed bed reactor was used to catalyze pyrolysis of algae residue after oil extraction. The effects of modified ZSM-5 catalysts with different metal types and metal loading on the pyrolysis characteristics of algae residue after oil extraction were studied with the mass ratio of material to catalyst 1:2. The catalyst was characterized by BET-XRD, the pyrolytic gas products were analyzed by gas chromatography, and the liquid products were qualitatively and semi-quantitatively analyzed by gas chromatography-mass spectrometry. The results showed that the pyrolysis of volatile matter was aggravated by the metal modified ZSM-5 catalyst, which resulted in the decrease of the yield of the liquid product and the increase of the yield of the pyrolytic gas product. During the reaction, the addition of catalyst increased the content of CO in the gas product and decreased the content of CO _ (2). When 6%Ni/ZSM-5 catalyst was used, the acid in the liquid product was decreased to 0.09 and the hydrocarbon component was 34.81, and the content of the dense ring compound and the highest alkylbenzene component was 4.92%.
【作者单位】：内蒙古科技大学数理与生物工程学院;天津大学环境科学与工程学院天津市生物质燃气燃油技术工程中心;西藏大学理学院;
【分类号】：O643.36;TK6

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